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@@ -1,4 +1,4 @@
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<!DOCTYPE html><html lang="en"><head><meta charSet="utf-8"/><meta http-equiv="X-UA-Compatible" content="IE=edge"/><title>Animated · React Native</title><meta name="viewport" content="width=device-width"/><meta name="generator" content="Docusaurus"/><meta name="description" content="Animations are an important part of modern UX, and the `Animated` library is designed to make them fluid, powerful, and easy to build and maintain."/><meta name="docsearch:version" content="0.18"/><meta name="docsearch:language" content="en"/><meta property="og:title" content="Animated · React Native"/><meta property="og:type" content="website"/><meta property="og:url" content="https://facebook.github.io/react-native/"/><meta property="og:description" content="Animations are an important part of modern UX, and the `Animated` library is designed to make them fluid, powerful, and easy to build and maintain."/><meta name="twitter:card" content="summary"/><link rel="shortcut icon" href="/react-native/img/favicon.ico"/><link rel="stylesheet" href="https://cdn.jsdelivr.net/docsearch.js/1/docsearch.min.css"/><link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/highlight.js/9.12.0/styles/solarized-dark.min.css"/><link rel="alternate" type="application/atom+xml" href="https://facebook.github.io/react-native/blog/atom.xml" title="React Native Blog ATOM Feed"/><link rel="alternate" type="application/rss+xml" href="https://facebook.github.io/react-native/blog/feed.xml" title="React Native Blog RSS Feed"/><script>
|
||||
<!DOCTYPE html><html lang="en"><head><meta charSet="utf-8"/><meta http-equiv="X-UA-Compatible" content="IE=edge"/><title>Animated · React Native</title><meta name="viewport" content="width=device-width"/><meta name="generator" content="Docusaurus"/><meta name="description" content="Animations are an important part of modern UX, and the `Animated` library is designed to make them fluid, powerful, and possible to build and maintain."/><meta name="docsearch:version" content="0.18"/><meta name="docsearch:language" content="en"/><meta property="og:title" content="Animated · React Native"/><meta property="og:type" content="website"/><meta property="og:url" content="https://facebook.github.io/react-native/"/><meta property="og:description" content="Animations are an important part of modern UX, and the `Animated` library is designed to make them fluid, powerful, and possible to build and maintain."/><meta name="twitter:card" content="summary"/><link rel="shortcut icon" href="/react-native/img/favicon.ico"/><link rel="stylesheet" href="https://cdn.jsdelivr.net/docsearch.js/1/docsearch.min.css"/><link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/highlight.js/9.12.0/styles/solarized-dark.min.css"/><link rel="alternate" type="application/atom+xml" href="https://facebook.github.io/react-native/blog/atom.xml" title="React Native Blog ATOM Feed"/><link rel="alternate" type="application/rss+xml" href="https://facebook.github.io/react-native/blog/feed.xml" title="React Native Blog RSS Feed"/><script>
|
||||
(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
|
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(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
|
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m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
|
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@@ -68,7 +68,7 @@
|
||||
};
|
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}
|
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});
|
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</script></nav></div><div class="container mainContainer"><div class="wrapper"><div class="post"><header class="postHeader"><a class="edit-page-link button" href="https://github.com/facebook/react-native-website/blob/master/docs/animated.md" target="_blank" rel="noreferrer noopener">Edit</a><h1 class="postHeaderTitle">Animated</h1></header><article><div><span><p>Animations are an important part of modern UX, and the <code>Animated</code> library is designed to make them fluid, powerful, and easy to build and maintain.</p>
|
||||
</script></nav></div><div class="container mainContainer"><div class="wrapper"><div class="post"><header class="postHeader"><a class="edit-page-link button" href="https://github.com/facebook/react-native-website/blob/master/docs/animated.md" target="_blank" rel="noreferrer noopener">Edit</a><h1 class="postHeaderTitle">Animated</h1></header><article><div><span><p>Animations are an important part of modern UX, and the <code>Animated</code> library is designed to make them fluid, powerful, and possible to build and maintain.</p>
|
||||
<p>The simplest workflow is to create an <code>Animated.Value</code>, hook it up to one or more style attributes of an animated component, and then drive updates either via animations, such as <code>Animated.timing</code>, or by hooking into gestures like panning or scrolling via <code>Animated.event</code>. <code>Animated.Value</code> can also bind to props other than style, and can be interpolated as well. Here is a basic example of a container view that will fade in when it's mounted:</p>
|
||||
<pre><code class="hljs css language-jsx"><span class="token keyword">class</span> <span class="token class-name">FadeInView</span> <span class="token keyword">extends</span> <span class="token class-name">React<span class="token punctuation">.</span>Component</span> <span class="token punctuation">{</span>
|
||||
<span class="token function">constructor</span><span class="token punctuation">(</span><span class="token parameter">props</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
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@@ -96,12 +96,12 @@
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<span class="token punctuation">}</span>
|
||||
<span class="token punctuation">}</span>
|
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</code></pre>
|
||||
<p>Note that only animatable components can be animated. <code>View</code>, <code>Text</code>, and <code>Image</code> are already provided, and you can create custom ones with <code>createAnimatedComponent</code>. These special components do the magic of binding the animated values to the properties, and do targeted native updates to avoid the cost of the react render and reconciliation process on every frame. They also handle cleanup on unmount so they are safe by default.</p>
|
||||
<p>Note that only animatable components can be animated. <code>View</code>, <code>Text</code>, and <code>Image</code> are already provided, and you can create custom ones with <code>createAnimatedComponent</code>. These particular components do the magic of binding the animated values to the properties, and do targeted native updates to avoid the cost of the react render and reconciliation process on every frame. They also handle cleanup on unmount so they are safe by default.</p>
|
||||
<p>Animations are heavily configurable. Custom and pre-defined easing functions, delays, durations, decay factors, spring constants, and more can all be tweaked depending on the type of animation.</p>
|
||||
<p>A single <code>Animated.Value</code> can drive any number of properties, and each property can be run through an interpolation first. An interpolation maps input ranges to output ranges, typically using a linear interpolation but also supports easing functions. By default, it will extrapolate the curve beyond the ranges given, but you can also have it clamp the output value.</p>
|
||||
<p>For example, you may want to think about your <code>Animated.Value</code> as going from 0 to 1, but animate the position from 150px to 0px and the opacity from 0 to</p>
|
||||
<ol>
|
||||
<li>This can easily be done by modifying <code>style</code> in the example above like so:</li>
|
||||
<li>This can be done by modifying <code>style</code> in the example above like so:</li>
|
||||
</ol>
|
||||
<pre><code class="hljs css language-jsx"> style<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">{</span>
|
||||
opacity<span class="token punctuation">:</span> <span class="token keyword">this</span><span class="token punctuation">.</span>state<span class="token punctuation">.</span>fadeAnim<span class="token punctuation">,</span> <span class="token comment">// Binds directly</span>
|
||||
@@ -113,7 +113,7 @@
|
||||
<span class="token punctuation">}</span><span class="token punctuation">]</span><span class="token punctuation">,</span>
|
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<span class="token punctuation">}</span><span class="token punctuation">}</span><span class="token operator">></span>
|
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</code></pre>
|
||||
<p>Animations can also be combined in complex ways using composition functions such as <code>sequence</code> and <code>parallel</code>, and can also be chained together simply by setting the <code>toValue</code> of one animation to be another <code>Animated.Value</code>.</p>
|
||||
<p>Animations can also be combined in complex ways using composition functions such as <code>sequence</code> and <code>parallel</code>, and can also be chained together by setting the <code>toValue</code> of one animation to be another <code>Animated.Value</code>.</p>
|
||||
<p><code>Animated.ValueXY</code> is handy for 2D animations, like panning, and there are other helpful additions like <code>setOffset</code> and <code>getLayout</code> to aid with typical interaction patterns, like drag-and-drop.</p>
|
||||
<p>You can see more example usage in <code>AnimationExample.js</code>, the Gratuitous Animation App, and <a href="/react-native/docs/0.18/animations">Animations documentation guide</a>.</p>
|
||||
<p>Note that <code>Animated</code> is designed to be fully serializable so that animations can be run in a high performance way, independent of the normal JavaScript event loop. This does influence the API, so keep that in mind when it seems a little trickier to do something compared to a fully synchronous system. Checkout <code>Animated.Value.addListener</code> as a way to work around some of these limitations, but use it sparingly since it might have performance implications in the future.</p>
|
||||
|
||||
@@ -1,4 +1,4 @@
|
||||
<!DOCTYPE html><html lang="en"><head><meta charSet="utf-8"/><meta http-equiv="X-UA-Compatible" content="IE=edge"/><title>Animated · React Native</title><meta name="viewport" content="width=device-width"/><meta name="generator" content="Docusaurus"/><meta name="description" content="Animations are an important part of modern UX, and the `Animated` library is designed to make them fluid, powerful, and easy to build and maintain."/><meta name="docsearch:version" content="0.18"/><meta name="docsearch:language" content="en"/><meta property="og:title" content="Animated · React Native"/><meta property="og:type" content="website"/><meta property="og:url" content="https://facebook.github.io/react-native/"/><meta property="og:description" content="Animations are an important part of modern UX, and the `Animated` library is designed to make them fluid, powerful, and easy to build and maintain."/><meta name="twitter:card" content="summary"/><link rel="shortcut icon" href="/react-native/img/favicon.ico"/><link rel="stylesheet" href="https://cdn.jsdelivr.net/docsearch.js/1/docsearch.min.css"/><link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/highlight.js/9.12.0/styles/solarized-dark.min.css"/><link rel="alternate" type="application/atom+xml" href="https://facebook.github.io/react-native/blog/atom.xml" title="React Native Blog ATOM Feed"/><link rel="alternate" type="application/rss+xml" href="https://facebook.github.io/react-native/blog/feed.xml" title="React Native Blog RSS Feed"/><script>
|
||||
<!DOCTYPE html><html lang="en"><head><meta charSet="utf-8"/><meta http-equiv="X-UA-Compatible" content="IE=edge"/><title>Animated · React Native</title><meta name="viewport" content="width=device-width"/><meta name="generator" content="Docusaurus"/><meta name="description" content="Animations are an important part of modern UX, and the `Animated` library is designed to make them fluid, powerful, and possible to build and maintain."/><meta name="docsearch:version" content="0.18"/><meta name="docsearch:language" content="en"/><meta property="og:title" content="Animated · React Native"/><meta property="og:type" content="website"/><meta property="og:url" content="https://facebook.github.io/react-native/"/><meta property="og:description" content="Animations are an important part of modern UX, and the `Animated` library is designed to make them fluid, powerful, and possible to build and maintain."/><meta name="twitter:card" content="summary"/><link rel="shortcut icon" href="/react-native/img/favicon.ico"/><link rel="stylesheet" href="https://cdn.jsdelivr.net/docsearch.js/1/docsearch.min.css"/><link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/highlight.js/9.12.0/styles/solarized-dark.min.css"/><link rel="alternate" type="application/atom+xml" href="https://facebook.github.io/react-native/blog/atom.xml" title="React Native Blog ATOM Feed"/><link rel="alternate" type="application/rss+xml" href="https://facebook.github.io/react-native/blog/feed.xml" title="React Native Blog RSS Feed"/><script>
|
||||
(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
|
||||
(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
|
||||
m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
|
||||
@@ -68,7 +68,7 @@
|
||||
};
|
||||
}
|
||||
});
|
||||
</script></nav></div><div class="container mainContainer"><div class="wrapper"><div class="post"><header class="postHeader"><a class="edit-page-link button" href="https://github.com/facebook/react-native-website/blob/master/docs/animated.md" target="_blank" rel="noreferrer noopener">Edit</a><h1 class="postHeaderTitle">Animated</h1></header><article><div><span><p>Animations are an important part of modern UX, and the <code>Animated</code> library is designed to make them fluid, powerful, and easy to build and maintain.</p>
|
||||
</script></nav></div><div class="container mainContainer"><div class="wrapper"><div class="post"><header class="postHeader"><a class="edit-page-link button" href="https://github.com/facebook/react-native-website/blob/master/docs/animated.md" target="_blank" rel="noreferrer noopener">Edit</a><h1 class="postHeaderTitle">Animated</h1></header><article><div><span><p>Animations are an important part of modern UX, and the <code>Animated</code> library is designed to make them fluid, powerful, and possible to build and maintain.</p>
|
||||
<p>The simplest workflow is to create an <code>Animated.Value</code>, hook it up to one or more style attributes of an animated component, and then drive updates either via animations, such as <code>Animated.timing</code>, or by hooking into gestures like panning or scrolling via <code>Animated.event</code>. <code>Animated.Value</code> can also bind to props other than style, and can be interpolated as well. Here is a basic example of a container view that will fade in when it's mounted:</p>
|
||||
<pre><code class="hljs css language-jsx"><span class="token keyword">class</span> <span class="token class-name">FadeInView</span> <span class="token keyword">extends</span> <span class="token class-name">React<span class="token punctuation">.</span>Component</span> <span class="token punctuation">{</span>
|
||||
<span class="token function">constructor</span><span class="token punctuation">(</span><span class="token parameter">props</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
|
||||
@@ -96,12 +96,12 @@
|
||||
<span class="token punctuation">}</span>
|
||||
<span class="token punctuation">}</span>
|
||||
</code></pre>
|
||||
<p>Note that only animatable components can be animated. <code>View</code>, <code>Text</code>, and <code>Image</code> are already provided, and you can create custom ones with <code>createAnimatedComponent</code>. These special components do the magic of binding the animated values to the properties, and do targeted native updates to avoid the cost of the react render and reconciliation process on every frame. They also handle cleanup on unmount so they are safe by default.</p>
|
||||
<p>Note that only animatable components can be animated. <code>View</code>, <code>Text</code>, and <code>Image</code> are already provided, and you can create custom ones with <code>createAnimatedComponent</code>. These particular components do the magic of binding the animated values to the properties, and do targeted native updates to avoid the cost of the react render and reconciliation process on every frame. They also handle cleanup on unmount so they are safe by default.</p>
|
||||
<p>Animations are heavily configurable. Custom and pre-defined easing functions, delays, durations, decay factors, spring constants, and more can all be tweaked depending on the type of animation.</p>
|
||||
<p>A single <code>Animated.Value</code> can drive any number of properties, and each property can be run through an interpolation first. An interpolation maps input ranges to output ranges, typically using a linear interpolation but also supports easing functions. By default, it will extrapolate the curve beyond the ranges given, but you can also have it clamp the output value.</p>
|
||||
<p>For example, you may want to think about your <code>Animated.Value</code> as going from 0 to 1, but animate the position from 150px to 0px and the opacity from 0 to</p>
|
||||
<ol>
|
||||
<li>This can easily be done by modifying <code>style</code> in the example above like so:</li>
|
||||
<li>This can be done by modifying <code>style</code> in the example above like so:</li>
|
||||
</ol>
|
||||
<pre><code class="hljs css language-jsx"> style<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">{</span>
|
||||
opacity<span class="token punctuation">:</span> <span class="token keyword">this</span><span class="token punctuation">.</span>state<span class="token punctuation">.</span>fadeAnim<span class="token punctuation">,</span> <span class="token comment">// Binds directly</span>
|
||||
@@ -113,7 +113,7 @@
|
||||
<span class="token punctuation">}</span><span class="token punctuation">]</span><span class="token punctuation">,</span>
|
||||
<span class="token punctuation">}</span><span class="token punctuation">}</span><span class="token operator">></span>
|
||||
</code></pre>
|
||||
<p>Animations can also be combined in complex ways using composition functions such as <code>sequence</code> and <code>parallel</code>, and can also be chained together simply by setting the <code>toValue</code> of one animation to be another <code>Animated.Value</code>.</p>
|
||||
<p>Animations can also be combined in complex ways using composition functions such as <code>sequence</code> and <code>parallel</code>, and can also be chained together by setting the <code>toValue</code> of one animation to be another <code>Animated.Value</code>.</p>
|
||||
<p><code>Animated.ValueXY</code> is handy for 2D animations, like panning, and there are other helpful additions like <code>setOffset</code> and <code>getLayout</code> to aid with typical interaction patterns, like drag-and-drop.</p>
|
||||
<p>You can see more example usage in <code>AnimationExample.js</code>, the Gratuitous Animation App, and <a href="/react-native/docs/0.18/animations">Animations documentation guide</a>.</p>
|
||||
<p>Note that <code>Animated</code> is designed to be fully serializable so that animations can be run in a high performance way, independent of the normal JavaScript event loop. This does influence the API, so keep that in mind when it seems a little trickier to do something compared to a fully synchronous system. Checkout <code>Animated.Value.addListener</code> as a way to work around some of these limitations, but use it sparingly since it might have performance implications in the future.</p>
|
||||
|
||||
@@ -80,7 +80,7 @@
|
||||
<pre><code class="hljs css language-jsx"><span class="token keyword">static</span> <span class="token keyword">set</span><span class="token punctuation">(</span>dims<span class="token punctuation">)</span>
|
||||
</code></pre>
|
||||
<p>This should only be called from native code.</p>
|
||||
<p>@param {object} dims Simple string-keyed object of dimensions to set</p>
|
||||
<p>@param {object} dims string-keyed object of dimensions to set</p>
|
||||
<hr>
|
||||
<h3><a class="anchor" aria-hidden="true" id="get"></a><a href="#get" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a><code>get()</code></h3>
|
||||
<pre><code class="hljs css language-jsx"><span class="token keyword">static</span> <span class="token keyword">get</span><span class="token punctuation">(</span>dim<span class="token punctuation">)</span>
|
||||
|
||||
@@ -80,7 +80,7 @@
|
||||
<pre><code class="hljs css language-jsx"><span class="token keyword">static</span> <span class="token keyword">set</span><span class="token punctuation">(</span>dims<span class="token punctuation">)</span>
|
||||
</code></pre>
|
||||
<p>This should only be called from native code.</p>
|
||||
<p>@param {object} dims Simple string-keyed object of dimensions to set</p>
|
||||
<p>@param {object} dims string-keyed object of dimensions to set</p>
|
||||
<hr>
|
||||
<h3><a class="anchor" aria-hidden="true" id="get"></a><a href="#get" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a><code>get()</code></h3>
|
||||
<pre><code class="hljs css language-jsx"><span class="token keyword">static</span> <span class="token keyword">get</span><span class="token punctuation">(</span>dim<span class="token punctuation">)</span>
|
||||
|
||||
@@ -86,7 +86,7 @@
|
||||
<h3><a class="anchor" aria-hidden="true" id="removeimagefortag"></a><a href="#removeimagefortag" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a><code>removeImageForTag()</code></h3>
|
||||
<pre><code class="hljs css language-jsx"><span class="token keyword">static</span> <span class="token function">removeImageForTag</span><span class="token punctuation">(</span>uri<span class="token punctuation">)</span>
|
||||
</code></pre>
|
||||
<p>Delete an image from the ImageStore. Images are stored in memory and must be manually removed when you are finished with them, otherwise they will continue to use up RAM until the app is terminated. It is safe to call <code>removeImageForTag()</code> without first calling <code>hasImageForTag()</code>, it will simply fail silently. @platform ios</p>
|
||||
<p>Delete an image from the ImageStore. Images are stored in memory and must be manually removed when you are finished with them, otherwise they will continue to use up RAM until the app is terminated. It is safe to call <code>removeImageForTag()</code> without first calling <code>hasImageForTag()</code>, it will silently fail. @platform ios</p>
|
||||
<hr>
|
||||
<h3><a class="anchor" aria-hidden="true" id="addimagefrombase64"></a><a href="#addimagefrombase64" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a><code>addImageFromBase64()</code></h3>
|
||||
<pre><code class="hljs css language-jsx"><span class="token keyword">static</span> <span class="token function">addImageFromBase64</span><span class="token punctuation">(</span>base64ImageData<span class="token punctuation">,</span> success<span class="token punctuation">,</span> failure<span class="token punctuation">)</span>
|
||||
@@ -98,7 +98,7 @@
|
||||
<pre><code class="hljs css language-jsx"><span class="token keyword">static</span> <span class="token function">getBase64ForTag</span><span class="token punctuation">(</span>uri<span class="token punctuation">,</span> success<span class="token punctuation">,</span> failure<span class="token punctuation">)</span>
|
||||
</code></pre>
|
||||
<p>Retrieves the base64-encoded data for an image in the ImageStore. If the specified URI does not match an image in the store, the failure callback will be called.</p>
|
||||
<p>Note that it is very inefficient to transfer large quantities of binary data between JS and native code, so you should avoid calling this more than necessary. To display an image in the ImageStore, you can just pass the URI to an <code><Image/></code> component; there is no need to retrieve the base64 data.</p>
|
||||
<p>Note that it is very inefficient to transfer large quantities of binary data between JS and native code, so you should avoid calling this more than necessary. To display an image in the ImageStore, you can pass the URI to an <code><Image/></code> component; there is no need to retrieve the base64 data.</p>
|
||||
</span></div></article></div><div class="docs-prevnext"><a class="docs-prev button" href="/react-native/docs/0.18/imagepickerios"><span class="arrow-prev">← </span><span class="function-name-prevnext">ImagePickerIOS</span></a><a class="docs-next button" href="/react-native/docs/0.18/image-style-props"><span>Image Style Props</span><span class="arrow-next"> →</span></a></div></div></div><nav class="onPageNav"><ul class="toc-headings"><li><a href="#methods-1">Methods</a><ul class="toc-headings"><li><a href="#hasimagefortag"><code>hasImageForTag()</code></a></li><li><a href="#removeimagefortag"><code>removeImageForTag()</code></a></li><li><a href="#addimagefrombase64"><code>addImageFromBase64()</code></a></li><li><a href="#getbase64fortag"><code>getBase64ForTag()</code></a></li></ul></li></ul></nav></div><footer class="nav-footer" id="footer"><section class="sitemap"><div><h5>Docs</h5><a href="/react-native/docs/getting-started.html">Getting Started</a><a href="/react-native/docs/tutorial.html">Tutorial</a><a href="/react-native/docs/components-and-apis.html">Components and APIs</a><a href="/react-native/docs/more-resources.html">More Resources</a></div><div><h5>Community</h5><a href="/react-native/help.html">The React Native Community</a><a href="/react-native/showcase.html">Who's using React Native?</a><a href="http://stackoverflow.com/questions/tagged/react-native" target="_blank">Ask Questions on Stack Overflow</a><a href="https://github.com/facebook/react-native/blob/master/CONTRIBUTING.md">Contributor Guide</a><a href="https://dev.to/t/reactnative" target="_blank">DEV Community</a></div><div><h5>More Resources</h5><a href="/react-native/blog/">Blog</a><a href="https://twitter.com/reactnative" target="_blank">Twitter</a><a href="https://github.com/facebook/react-native" target="_blank">GitHub</a><a href="http://reactjs.org" target="_blank">React</a></div></section><a href="https://code.facebook.com/projects/" target="_blank" class="fbOpenSource"><img src="/react-native/img/oss_logo.png" alt="Facebook Open Source" width="170" height="45"/></a><section class="copyright">Copyright © 2019 Facebook Inc.</section></footer></div><script type="text/javascript" src="https://cdn.jsdelivr.net/docsearch.js/1/docsearch.min.js"></script><script>window.fbAsyncInit = function() {FB.init({appId:'1677033832619985',xfbml:true,version:'v2.7'});};(function(d, s, id){var js, fjs = d.getElementsByTagName(s)[0];if (d.getElementById(id)) {return;}js = d.createElement(s); js.id = id;js.src = '//connect.facebook.net/en_US/sdk.js';fjs.parentNode.insertBefore(js, fjs);}(document, 'script','facebook-jssdk'));
|
||||
</script><script>window.twttr=(function(d,s, id){var js,fjs=d.getElementsByTagName(s)[0],t=window.twttr||{};if(d.getElementById(id))return t;js=d.createElement(s);js.id=id;js.src='https://platform.twitter.com/widgets.js';fjs.parentNode.insertBefore(js, fjs);t._e = [];t.ready = function(f) {t._e.push(f);};return t;}(document, 'script', 'twitter-wjs'));</script><script>
|
||||
document.addEventListener('keyup', function(e) {
|
||||
|
||||
@@ -86,7 +86,7 @@
|
||||
<h3><a class="anchor" aria-hidden="true" id="removeimagefortag"></a><a href="#removeimagefortag" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a><code>removeImageForTag()</code></h3>
|
||||
<pre><code class="hljs css language-jsx"><span class="token keyword">static</span> <span class="token function">removeImageForTag</span><span class="token punctuation">(</span>uri<span class="token punctuation">)</span>
|
||||
</code></pre>
|
||||
<p>Delete an image from the ImageStore. Images are stored in memory and must be manually removed when you are finished with them, otherwise they will continue to use up RAM until the app is terminated. It is safe to call <code>removeImageForTag()</code> without first calling <code>hasImageForTag()</code>, it will simply fail silently. @platform ios</p>
|
||||
<p>Delete an image from the ImageStore. Images are stored in memory and must be manually removed when you are finished with them, otherwise they will continue to use up RAM until the app is terminated. It is safe to call <code>removeImageForTag()</code> without first calling <code>hasImageForTag()</code>, it will silently fail. @platform ios</p>
|
||||
<hr>
|
||||
<h3><a class="anchor" aria-hidden="true" id="addimagefrombase64"></a><a href="#addimagefrombase64" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a><code>addImageFromBase64()</code></h3>
|
||||
<pre><code class="hljs css language-jsx"><span class="token keyword">static</span> <span class="token function">addImageFromBase64</span><span class="token punctuation">(</span>base64ImageData<span class="token punctuation">,</span> success<span class="token punctuation">,</span> failure<span class="token punctuation">)</span>
|
||||
@@ -98,7 +98,7 @@
|
||||
<pre><code class="hljs css language-jsx"><span class="token keyword">static</span> <span class="token function">getBase64ForTag</span><span class="token punctuation">(</span>uri<span class="token punctuation">,</span> success<span class="token punctuation">,</span> failure<span class="token punctuation">)</span>
|
||||
</code></pre>
|
||||
<p>Retrieves the base64-encoded data for an image in the ImageStore. If the specified URI does not match an image in the store, the failure callback will be called.</p>
|
||||
<p>Note that it is very inefficient to transfer large quantities of binary data between JS and native code, so you should avoid calling this more than necessary. To display an image in the ImageStore, you can just pass the URI to an <code><Image/></code> component; there is no need to retrieve the base64 data.</p>
|
||||
<p>Note that it is very inefficient to transfer large quantities of binary data between JS and native code, so you should avoid calling this more than necessary. To display an image in the ImageStore, you can pass the URI to an <code><Image/></code> component; there is no need to retrieve the base64 data.</p>
|
||||
</span></div></article></div><div class="docs-prevnext"><a class="docs-prev button" href="/react-native/docs/0.18/imagepickerios"><span class="arrow-prev">← </span><span class="function-name-prevnext">ImagePickerIOS</span></a><a class="docs-next button" href="/react-native/docs/0.18/image-style-props"><span>Image Style Props</span><span class="arrow-next"> →</span></a></div></div></div><nav class="onPageNav"><ul class="toc-headings"><li><a href="#methods-1">Methods</a><ul class="toc-headings"><li><a href="#hasimagefortag"><code>hasImageForTag()</code></a></li><li><a href="#removeimagefortag"><code>removeImageForTag()</code></a></li><li><a href="#addimagefrombase64"><code>addImageFromBase64()</code></a></li><li><a href="#getbase64fortag"><code>getBase64ForTag()</code></a></li></ul></li></ul></nav></div><footer class="nav-footer" id="footer"><section class="sitemap"><div><h5>Docs</h5><a href="/react-native/docs/getting-started.html">Getting Started</a><a href="/react-native/docs/tutorial.html">Tutorial</a><a href="/react-native/docs/components-and-apis.html">Components and APIs</a><a href="/react-native/docs/more-resources.html">More Resources</a></div><div><h5>Community</h5><a href="/react-native/help.html">The React Native Community</a><a href="/react-native/showcase.html">Who's using React Native?</a><a href="http://stackoverflow.com/questions/tagged/react-native" target="_blank">Ask Questions on Stack Overflow</a><a href="https://github.com/facebook/react-native/blob/master/CONTRIBUTING.md">Contributor Guide</a><a href="https://dev.to/t/reactnative" target="_blank">DEV Community</a></div><div><h5>More Resources</h5><a href="/react-native/blog/">Blog</a><a href="https://twitter.com/reactnative" target="_blank">Twitter</a><a href="https://github.com/facebook/react-native" target="_blank">GitHub</a><a href="http://reactjs.org" target="_blank">React</a></div></section><a href="https://code.facebook.com/projects/" target="_blank" class="fbOpenSource"><img src="/react-native/img/oss_logo.png" alt="Facebook Open Source" width="170" height="45"/></a><section class="copyright">Copyright © 2019 Facebook Inc.</section></footer></div><script type="text/javascript" src="https://cdn.jsdelivr.net/docsearch.js/1/docsearch.min.js"></script><script>window.fbAsyncInit = function() {FB.init({appId:'1677033832619985',xfbml:true,version:'v2.7'});};(function(d, s, id){var js, fjs = d.getElementsByTagName(s)[0];if (d.getElementById(id)) {return;}js = d.createElement(s); js.id = id;js.src = '//connect.facebook.net/en_US/sdk.js';fjs.parentNode.insertBefore(js, fjs);}(document, 'script','facebook-jssdk'));
|
||||
</script><script>window.twttr=(function(d,s, id){var js,fjs=d.getElementsByTagName(s)[0],t=window.twttr||{};if(d.getElementById(id))return t;js=d.createElement(s);js.id=id;js.src='https://platform.twitter.com/widgets.js';fjs.parentNode.insertBefore(js, fjs);t._e = [];t.ready = function(f) {t._e.push(f);};return t;}(document, 'script', 'twitter-wjs'));</script><script>
|
||||
document.addEventListener('keyup', function(e) {
|
||||
|
||||
@@ -69,7 +69,7 @@
|
||||
}
|
||||
});
|
||||
</script></nav></div><div class="container mainContainer"><div class="wrapper"><div class="post"><header class="postHeader"><a class="edit-page-link button" href="https://github.com/facebook/react-native-website/blob/master/docs/scrollview.md" target="_blank" rel="noreferrer noopener">Edit</a><h1 class="postHeaderTitle">ScrollView</h1></header><article><div><span><p>Component that wraps platform ScrollView while providing integration with touch locking "responder" system.</p>
|
||||
<p>Keep in mind that ScrollViews must have a bounded height in order to work, since they contain unbounded-height children into a bounded container (via a scroll interaction). In order to bound the height of a ScrollView, either set the height of the view directly (discouraged) or make sure all parent views have bounded height. Forgetting to transfer <code>{flex: 1}</code> down the view stack can lead to errors here, which the element inspector makes easy to debug.</p>
|
||||
<p>Keep in mind that ScrollViews must have a bounded height in order to work, since they contain unbounded-height children into a bounded container (via a scroll interaction). In order to bound the height of a ScrollView, either set the height of the view directly (discouraged) or make sure all parent views have bounded height. Forgetting to transfer <code>{flex: 1}</code> down the view stack can lead to errors here, which the element inspector helps to debug.</p>
|
||||
<p>Doesn't yet support other contained responders from blocking this scroll view from becoming the responder.</p>
|
||||
<h3><a class="anchor" aria-hidden="true" id="props"></a><a href="#props" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Props</h3>
|
||||
<ul>
|
||||
|
||||
@@ -69,7 +69,7 @@
|
||||
}
|
||||
});
|
||||
</script></nav></div><div class="container mainContainer"><div class="wrapper"><div class="post"><header class="postHeader"><a class="edit-page-link button" href="https://github.com/facebook/react-native-website/blob/master/docs/scrollview.md" target="_blank" rel="noreferrer noopener">Edit</a><h1 class="postHeaderTitle">ScrollView</h1></header><article><div><span><p>Component that wraps platform ScrollView while providing integration with touch locking "responder" system.</p>
|
||||
<p>Keep in mind that ScrollViews must have a bounded height in order to work, since they contain unbounded-height children into a bounded container (via a scroll interaction). In order to bound the height of a ScrollView, either set the height of the view directly (discouraged) or make sure all parent views have bounded height. Forgetting to transfer <code>{flex: 1}</code> down the view stack can lead to errors here, which the element inspector makes easy to debug.</p>
|
||||
<p>Keep in mind that ScrollViews must have a bounded height in order to work, since they contain unbounded-height children into a bounded container (via a scroll interaction). In order to bound the height of a ScrollView, either set the height of the view directly (discouraged) or make sure all parent views have bounded height. Forgetting to transfer <code>{flex: 1}</code> down the view stack can lead to errors here, which the element inspector helps to debug.</p>
|
||||
<p>Doesn't yet support other contained responders from blocking this scroll view from becoming the responder.</p>
|
||||
<h3><a class="anchor" aria-hidden="true" id="props"></a><a href="#props" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Props</h3>
|
||||
<ul>
|
||||
|
||||
@@ -80,7 +80,7 @@
|
||||
<pre><code class="hljs css language-jsx"><span class="token keyword">static</span> <span class="token keyword">set</span><span class="token punctuation">(</span>dims<span class="token punctuation">)</span>
|
||||
</code></pre>
|
||||
<p>This should only be called from native code.</p>
|
||||
<p>@param {object} dims Simple string-keyed object of dimensions to set</p>
|
||||
<p>@param {object} dims string-keyed object of dimensions to set</p>
|
||||
<hr>
|
||||
<h3><a class="anchor" aria-hidden="true" id="get"></a><a href="#get" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a><code>get()</code></h3>
|
||||
<pre><code class="hljs css language-jsx"><span class="token keyword">static</span> <span class="token keyword">get</span><span class="token punctuation">(</span>dim<span class="token punctuation">)</span>
|
||||
|
||||
@@ -80,7 +80,7 @@
|
||||
<pre><code class="hljs css language-jsx"><span class="token keyword">static</span> <span class="token keyword">set</span><span class="token punctuation">(</span>dims<span class="token punctuation">)</span>
|
||||
</code></pre>
|
||||
<p>This should only be called from native code.</p>
|
||||
<p>@param {object} dims Simple string-keyed object of dimensions to set</p>
|
||||
<p>@param {object} dims string-keyed object of dimensions to set</p>
|
||||
<hr>
|
||||
<h3><a class="anchor" aria-hidden="true" id="get"></a><a href="#get" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a><code>get()</code></h3>
|
||||
<pre><code class="hljs css language-jsx"><span class="token keyword">static</span> <span class="token keyword">get</span><span class="token punctuation">(</span>dim<span class="token punctuation">)</span>
|
||||
|
||||
@@ -86,7 +86,7 @@
|
||||
<h3><a class="anchor" aria-hidden="true" id="removeimagefortag"></a><a href="#removeimagefortag" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a><code>removeImageForTag()</code></h3>
|
||||
<pre><code class="hljs css language-jsx"><span class="token keyword">static</span> <span class="token function">removeImageForTag</span><span class="token punctuation">(</span>uri<span class="token punctuation">)</span>
|
||||
</code></pre>
|
||||
<p>Delete an image from the ImageStore. Images are stored in memory and must be manually removed when you are finished with them, otherwise they will continue to use up RAM until the app is terminated. It is safe to call <code>removeImageForTag()</code> without first calling <code>hasImageForTag()</code>, it will simply fail silently. @platform ios</p>
|
||||
<p>Delete an image from the ImageStore. Images are stored in memory and must be manually removed when you are finished with them, otherwise they will continue to use up RAM until the app is terminated. It is safe to call <code>removeImageForTag()</code> without first calling <code>hasImageForTag()</code>, it will silently fail. @platform ios</p>
|
||||
<hr>
|
||||
<h3><a class="anchor" aria-hidden="true" id="addimagefrombase64"></a><a href="#addimagefrombase64" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a><code>addImageFromBase64()</code></h3>
|
||||
<pre><code class="hljs css language-jsx"><span class="token keyword">static</span> <span class="token function">addImageFromBase64</span><span class="token punctuation">(</span>base64ImageData<span class="token punctuation">,</span> success<span class="token punctuation">,</span> failure<span class="token punctuation">)</span>
|
||||
@@ -98,7 +98,7 @@
|
||||
<pre><code class="hljs css language-jsx"><span class="token keyword">static</span> <span class="token function">getBase64ForTag</span><span class="token punctuation">(</span>uri<span class="token punctuation">,</span> success<span class="token punctuation">,</span> failure<span class="token punctuation">)</span>
|
||||
</code></pre>
|
||||
<p>Retrieves the base64-encoded data for an image in the ImageStore. If the specified URI does not match an image in the store, the failure callback will be called.</p>
|
||||
<p>Note that it is very inefficient to transfer large quantities of binary data between JS and native code, so you should avoid calling this more than necessary. To display an image in the ImageStore, you can just pass the URI to an <code><Image/></code> component; there is no need to retrieve the base64 data.</p>
|
||||
<p>Note that it is very inefficient to transfer large quantities of binary data between JS and native code, so you should avoid calling this more than necessary. To display an image in the ImageStore, you can pass the URI to an <code><Image/></code> component; there is no need to retrieve the base64 data.</p>
|
||||
</span></div></article></div><div class="docs-prevnext"><a class="docs-prev button" href="/react-native/docs/0.19/imagepickerios"><span class="arrow-prev">← </span><span class="function-name-prevnext">ImagePickerIOS</span></a><a class="docs-next button" href="/react-native/docs/0.19/image-style-props"><span>Image Style Props</span><span class="arrow-next"> →</span></a></div></div></div><nav class="onPageNav"><ul class="toc-headings"><li><a href="#methods-1">Methods</a><ul class="toc-headings"><li><a href="#hasimagefortag"><code>hasImageForTag()</code></a></li><li><a href="#removeimagefortag"><code>removeImageForTag()</code></a></li><li><a href="#addimagefrombase64"><code>addImageFromBase64()</code></a></li><li><a href="#getbase64fortag"><code>getBase64ForTag()</code></a></li></ul></li></ul></nav></div><footer class="nav-footer" id="footer"><section class="sitemap"><div><h5>Docs</h5><a href="/react-native/docs/getting-started.html">Getting Started</a><a href="/react-native/docs/tutorial.html">Tutorial</a><a href="/react-native/docs/components-and-apis.html">Components and APIs</a><a href="/react-native/docs/more-resources.html">More Resources</a></div><div><h5>Community</h5><a href="/react-native/help.html">The React Native Community</a><a href="/react-native/showcase.html">Who's using React Native?</a><a href="http://stackoverflow.com/questions/tagged/react-native" target="_blank">Ask Questions on Stack Overflow</a><a href="https://github.com/facebook/react-native/blob/master/CONTRIBUTING.md">Contributor Guide</a><a href="https://dev.to/t/reactnative" target="_blank">DEV Community</a></div><div><h5>More Resources</h5><a href="/react-native/blog/">Blog</a><a href="https://twitter.com/reactnative" target="_blank">Twitter</a><a href="https://github.com/facebook/react-native" target="_blank">GitHub</a><a href="http://reactjs.org" target="_blank">React</a></div></section><a href="https://code.facebook.com/projects/" target="_blank" class="fbOpenSource"><img src="/react-native/img/oss_logo.png" alt="Facebook Open Source" width="170" height="45"/></a><section class="copyright">Copyright © 2019 Facebook Inc.</section></footer></div><script type="text/javascript" src="https://cdn.jsdelivr.net/docsearch.js/1/docsearch.min.js"></script><script>window.fbAsyncInit = function() {FB.init({appId:'1677033832619985',xfbml:true,version:'v2.7'});};(function(d, s, id){var js, fjs = d.getElementsByTagName(s)[0];if (d.getElementById(id)) {return;}js = d.createElement(s); js.id = id;js.src = '//connect.facebook.net/en_US/sdk.js';fjs.parentNode.insertBefore(js, fjs);}(document, 'script','facebook-jssdk'));
|
||||
</script><script>window.twttr=(function(d,s, id){var js,fjs=d.getElementsByTagName(s)[0],t=window.twttr||{};if(d.getElementById(id))return t;js=d.createElement(s);js.id=id;js.src='https://platform.twitter.com/widgets.js';fjs.parentNode.insertBefore(js, fjs);t._e = [];t.ready = function(f) {t._e.push(f);};return t;}(document, 'script', 'twitter-wjs'));</script><script>
|
||||
document.addEventListener('keyup', function(e) {
|
||||
|
||||
@@ -86,7 +86,7 @@
|
||||
<h3><a class="anchor" aria-hidden="true" id="removeimagefortag"></a><a href="#removeimagefortag" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a><code>removeImageForTag()</code></h3>
|
||||
<pre><code class="hljs css language-jsx"><span class="token keyword">static</span> <span class="token function">removeImageForTag</span><span class="token punctuation">(</span>uri<span class="token punctuation">)</span>
|
||||
</code></pre>
|
||||
<p>Delete an image from the ImageStore. Images are stored in memory and must be manually removed when you are finished with them, otherwise they will continue to use up RAM until the app is terminated. It is safe to call <code>removeImageForTag()</code> without first calling <code>hasImageForTag()</code>, it will simply fail silently. @platform ios</p>
|
||||
<p>Delete an image from the ImageStore. Images are stored in memory and must be manually removed when you are finished with them, otherwise they will continue to use up RAM until the app is terminated. It is safe to call <code>removeImageForTag()</code> without first calling <code>hasImageForTag()</code>, it will silently fail. @platform ios</p>
|
||||
<hr>
|
||||
<h3><a class="anchor" aria-hidden="true" id="addimagefrombase64"></a><a href="#addimagefrombase64" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a><code>addImageFromBase64()</code></h3>
|
||||
<pre><code class="hljs css language-jsx"><span class="token keyword">static</span> <span class="token function">addImageFromBase64</span><span class="token punctuation">(</span>base64ImageData<span class="token punctuation">,</span> success<span class="token punctuation">,</span> failure<span class="token punctuation">)</span>
|
||||
@@ -98,7 +98,7 @@
|
||||
<pre><code class="hljs css language-jsx"><span class="token keyword">static</span> <span class="token function">getBase64ForTag</span><span class="token punctuation">(</span>uri<span class="token punctuation">,</span> success<span class="token punctuation">,</span> failure<span class="token punctuation">)</span>
|
||||
</code></pre>
|
||||
<p>Retrieves the base64-encoded data for an image in the ImageStore. If the specified URI does not match an image in the store, the failure callback will be called.</p>
|
||||
<p>Note that it is very inefficient to transfer large quantities of binary data between JS and native code, so you should avoid calling this more than necessary. To display an image in the ImageStore, you can just pass the URI to an <code><Image/></code> component; there is no need to retrieve the base64 data.</p>
|
||||
<p>Note that it is very inefficient to transfer large quantities of binary data between JS and native code, so you should avoid calling this more than necessary. To display an image in the ImageStore, you can pass the URI to an <code><Image/></code> component; there is no need to retrieve the base64 data.</p>
|
||||
</span></div></article></div><div class="docs-prevnext"><a class="docs-prev button" href="/react-native/docs/0.19/imagepickerios"><span class="arrow-prev">← </span><span class="function-name-prevnext">ImagePickerIOS</span></a><a class="docs-next button" href="/react-native/docs/0.19/image-style-props"><span>Image Style Props</span><span class="arrow-next"> →</span></a></div></div></div><nav class="onPageNav"><ul class="toc-headings"><li><a href="#methods-1">Methods</a><ul class="toc-headings"><li><a href="#hasimagefortag"><code>hasImageForTag()</code></a></li><li><a href="#removeimagefortag"><code>removeImageForTag()</code></a></li><li><a href="#addimagefrombase64"><code>addImageFromBase64()</code></a></li><li><a href="#getbase64fortag"><code>getBase64ForTag()</code></a></li></ul></li></ul></nav></div><footer class="nav-footer" id="footer"><section class="sitemap"><div><h5>Docs</h5><a href="/react-native/docs/getting-started.html">Getting Started</a><a href="/react-native/docs/tutorial.html">Tutorial</a><a href="/react-native/docs/components-and-apis.html">Components and APIs</a><a href="/react-native/docs/more-resources.html">More Resources</a></div><div><h5>Community</h5><a href="/react-native/help.html">The React Native Community</a><a href="/react-native/showcase.html">Who's using React Native?</a><a href="http://stackoverflow.com/questions/tagged/react-native" target="_blank">Ask Questions on Stack Overflow</a><a href="https://github.com/facebook/react-native/blob/master/CONTRIBUTING.md">Contributor Guide</a><a href="https://dev.to/t/reactnative" target="_blank">DEV Community</a></div><div><h5>More Resources</h5><a href="/react-native/blog/">Blog</a><a href="https://twitter.com/reactnative" target="_blank">Twitter</a><a href="https://github.com/facebook/react-native" target="_blank">GitHub</a><a href="http://reactjs.org" target="_blank">React</a></div></section><a href="https://code.facebook.com/projects/" target="_blank" class="fbOpenSource"><img src="/react-native/img/oss_logo.png" alt="Facebook Open Source" width="170" height="45"/></a><section class="copyright">Copyright © 2019 Facebook Inc.</section></footer></div><script type="text/javascript" src="https://cdn.jsdelivr.net/docsearch.js/1/docsearch.min.js"></script><script>window.fbAsyncInit = function() {FB.init({appId:'1677033832619985',xfbml:true,version:'v2.7'});};(function(d, s, id){var js, fjs = d.getElementsByTagName(s)[0];if (d.getElementById(id)) {return;}js = d.createElement(s); js.id = id;js.src = '//connect.facebook.net/en_US/sdk.js';fjs.parentNode.insertBefore(js, fjs);}(document, 'script','facebook-jssdk'));
|
||||
</script><script>window.twttr=(function(d,s, id){var js,fjs=d.getElementsByTagName(s)[0],t=window.twttr||{};if(d.getElementById(id))return t;js=d.createElement(s);js.id=id;js.src='https://platform.twitter.com/widgets.js';fjs.parentNode.insertBefore(js, fjs);t._e = [];t.ready = function(f) {t._e.push(f);};return t;}(document, 'script', 'twitter-wjs'));</script><script>
|
||||
document.addEventListener('keyup', function(e) {
|
||||
|
||||
@@ -80,7 +80,7 @@
|
||||
<pre><code class="hljs css language-jsx"><span class="token keyword">static</span> <span class="token keyword">set</span><span class="token punctuation">(</span>dims<span class="token punctuation">)</span>
|
||||
</code></pre>
|
||||
<p>This should only be called from native code.</p>
|
||||
<p>@param {object} dims Simple string-keyed object of dimensions to set</p>
|
||||
<p>@param {object} dims string-keyed object of dimensions to set</p>
|
||||
<hr>
|
||||
<h3><a class="anchor" aria-hidden="true" id="get"></a><a href="#get" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a><code>get()</code></h3>
|
||||
<pre><code class="hljs css language-jsx"><span class="token keyword">static</span> <span class="token keyword">get</span><span class="token punctuation">(</span>dim<span class="token punctuation">)</span>
|
||||
|
||||
@@ -80,7 +80,7 @@
|
||||
<pre><code class="hljs css language-jsx"><span class="token keyword">static</span> <span class="token keyword">set</span><span class="token punctuation">(</span>dims<span class="token punctuation">)</span>
|
||||
</code></pre>
|
||||
<p>This should only be called from native code.</p>
|
||||
<p>@param {object} dims Simple string-keyed object of dimensions to set</p>
|
||||
<p>@param {object} dims string-keyed object of dimensions to set</p>
|
||||
<hr>
|
||||
<h3><a class="anchor" aria-hidden="true" id="get"></a><a href="#get" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a><code>get()</code></h3>
|
||||
<pre><code class="hljs css language-jsx"><span class="token keyword">static</span> <span class="token keyword">get</span><span class="token punctuation">(</span>dim<span class="token punctuation">)</span>
|
||||
|
||||
@@ -80,7 +80,7 @@
|
||||
<pre><code class="hljs css language-jsx"><span class="token keyword">static</span> <span class="token keyword">set</span><span class="token punctuation">(</span>dims<span class="token punctuation">)</span>
|
||||
</code></pre>
|
||||
<p>This should only be called from native code.</p>
|
||||
<p>@param {object} dims Simple string-keyed object of dimensions to set</p>
|
||||
<p>@param {object} dims string-keyed object of dimensions to set</p>
|
||||
<hr>
|
||||
<h3><a class="anchor" aria-hidden="true" id="get"></a><a href="#get" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a><code>get()</code></h3>
|
||||
<pre><code class="hljs css language-jsx"><span class="token keyword">static</span> <span class="token keyword">get</span><span class="token punctuation">(</span>dim<span class="token punctuation">)</span>
|
||||
|
||||
@@ -80,7 +80,7 @@
|
||||
<pre><code class="hljs css language-jsx"><span class="token keyword">static</span> <span class="token keyword">set</span><span class="token punctuation">(</span>dims<span class="token punctuation">)</span>
|
||||
</code></pre>
|
||||
<p>This should only be called from native code.</p>
|
||||
<p>@param {object} dims Simple string-keyed object of dimensions to set</p>
|
||||
<p>@param {object} dims string-keyed object of dimensions to set</p>
|
||||
<hr>
|
||||
<h3><a class="anchor" aria-hidden="true" id="get"></a><a href="#get" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a><code>get()</code></h3>
|
||||
<pre><code class="hljs css language-jsx"><span class="token keyword">static</span> <span class="token keyword">get</span><span class="token punctuation">(</span>dim<span class="token punctuation">)</span>
|
||||
|
||||
@@ -80,7 +80,7 @@
|
||||
<pre><code class="hljs css language-jsx"><span class="token keyword">static</span> <span class="token keyword">set</span><span class="token punctuation">(</span>dims<span class="token punctuation">)</span>
|
||||
</code></pre>
|
||||
<p>This should only be called from native code.</p>
|
||||
<p>@param {object} dims Simple string-keyed object of dimensions to set</p>
|
||||
<p>@param {object} dims string-keyed object of dimensions to set</p>
|
||||
<hr>
|
||||
<h3><a class="anchor" aria-hidden="true" id="get"></a><a href="#get" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a><code>get()</code></h3>
|
||||
<pre><code class="hljs css language-jsx"><span class="token keyword">static</span> <span class="token keyword">get</span><span class="token punctuation">(</span>dim<span class="token punctuation">)</span>
|
||||
|
||||
@@ -80,7 +80,7 @@
|
||||
<pre><code class="hljs css language-jsx"><span class="token keyword">static</span> <span class="token keyword">set</span><span class="token punctuation">(</span>dims<span class="token punctuation">)</span>
|
||||
</code></pre>
|
||||
<p>This should only be called from native code.</p>
|
||||
<p>@param {object} dims Simple string-keyed object of dimensions to set</p>
|
||||
<p>@param {object} dims string-keyed object of dimensions to set</p>
|
||||
<hr>
|
||||
<h3><a class="anchor" aria-hidden="true" id="get"></a><a href="#get" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a><code>get()</code></h3>
|
||||
<pre><code class="hljs css language-jsx"><span class="token keyword">static</span> <span class="token keyword">get</span><span class="token punctuation">(</span>dim<span class="token punctuation">)</span>
|
||||
|
||||
Reference in New Issue
Block a user