Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/27434
Pull Request resolved: https://github.com/facebook/react-native/pull/27295
- Use Xcode version 11.2.1 in both internal and external tests.
- Update snapshot reference images to use iPhone 8 test device.
Xcode 11.3.0 will be available in Sandcastle in the next week or so.
Changelog:
[Internal] - Bump Xcode version used in tests to 11.2.1.
[Internal] - Update iOS Snapshots.
Reviewed By: cs01
Differential Revision: D18849584
fbshipit-source-id: 9e3b92f080a4dc6a15dac0535b7562ff6a5c08a9
Summary:
Original commit changeset: c45409a8413e
I was unable to find the cause of the problem.
Reviewed By: yungsters
Differential Revision: D16240754
fbshipit-source-id: c1e3f0aa615422f1156706f919e8f851f82c18b0
Summary:
The current technique we use to draw text uses linear memory, which means that when text is too long the UIView layer is unable to draw it. This causes the issue described [here](https://github.com/facebook/react-native/issues/19453). On an iOS simulator the bug happens at around 500 lines which is quite annoying. It can also happen on a real device but requires a lot more text.
To be more specific the amount of text doesn't actually matter, it is the size of the UIView that we use to draw the text. When we use `[drawRect:]` the view creates a bitmap to send to the gpu to render, if that bitmap is too big it cannot render.
To fix this we can use `CATiledLayer` which will split drawing into smaller parts, that gets executed when the content is about to be visible. This drawing is also async which means the text can seem to appear during scroll. See https://developer.apple.com/documentation/quartzcore/calayer?language=objc.
`CATiledLayer` also adds some overhead that we don't want when rendering small amount of text. To fix this we can use either a regular `CALayer` or a `CATiledLayer` depending on the size of the view containing the text. I picked 1024 as the threshold which is about 1 screen and a half, and is still smaller than the height needed for the bug to occur when using a regular `CALayer` on a iOS simulator.
Also found this which addresses the problem in a similar manner and took some inspiration from the code linked there https://github.com/GitHawkApp/StyledTextKit/issues/14#issuecomment-395234885
Fixes https://github.com/facebook/react-native/issues/19453
## Changelog
[iOS] [Fixed] - Use CALayers to draw text, fixes rendering for long text
Pull Request resolved: https://github.com/facebook/react-native/pull/24387
Test Plan:
- Added the example I was using to verify the fix to RNTester.
- Made sure all other examples are still rendering properly.
- Tested text selection
Reviewed By: shergin
Differential Revision: D15918277
Pulled By: sammy-SC
fbshipit-source-id: c45409a8413e6e3ad272be39ba527a4e8d349e28
Summary:
Fix#23849. When setting a semi-transparent background on text, it becomes obvious that we are drawing the background color twice. Since background color is handled by the view, we should not need to draw the glyph background color too.
| Before | After |
| ------------- |-------------|
|<img src="https://i.imgur.com/8JGpKTC.png" width="300"> | <img src="https://imgur.com/qjKU9Ze.png" width="300">
[iOS] [Fixed] - Semi-transparent backgrounds on text
Pull Request resolved: https://github.com/facebook/react-native/pull/23872
Differential Revision: D14430501
Pulled By: shergin
fbshipit-source-id: 19743415b2d20a3b941b1c80bd7b47144e929458
Summary:
Fixes#23459. It is not legal to write the character array of a std::string, and can result in undefined behavior.
[General] [Fixed] - Crash when substring intersects with emoji
Pull Request resolved: https://github.com/facebook/react-native/pull/23609
Differential Revision: D14198159
Pulled By: mdvacca
fbshipit-source-id: 71060b1b99ddab89793c98c09f99ec9974479e62
Summary:
Currently, if we has `defaultValue`, textAttributes like `letterSpacing` can works, but if textinput has not default text, when we typing the text, some attributes not applied.
[iOS] [Fixed] - Fix textAttributes not applied when typing text
Pull Request resolved: https://github.com/facebook/react-native/pull/23585
Differential Revision: D14206568
Pulled By: cpojer
fbshipit-source-id: 7db276d811684bf6e01f8d30287cca80095db87c
Summary:
Sometimes images are slow to load, and they are quite heavy. This converts the ScrollViewExample to a list of simple text items, similar to the append example inside of it.
What it looks like: https://i.imgur.com/jt083Iv.png
[iOS] [Fixed] - Fix testScrollViewExample flakiness
Pull Request resolved: https://github.com/facebook/react-native/pull/23541
Differential Revision: D14142947
Pulled By: hramos
fbshipit-source-id: c897a4caa5374ef67e3d67306e3124c29b969565
Summary:
Fixes https://github.com/facebook/react-native/issues/23108. The TabBarIOS component is scheduled to be removed from core any day now, so it's OK to remove it from our test suite.
Changelog:
----------
[iOS] [Removed] - Remove TabBarExample SST
Pull Request resolved: https://github.com/facebook/react-native/pull/23206
Differential Revision: D13864064
Pulled By: hramos
fbshipit-source-id: f65da75e2789d384dcd713a27ca5528f0faa7526
Summary:
The iOS snapshots have been out of date for months, but the failure was not caught in open source's `test_objc` job because `xcpretty` was swallowing the non-zero error code.
To fix this, I enabled recording mode in RNTesterSnapshotTests.m temporarily, and re-ran the tests in order to update the snapshots. I've also switched the test device used by Circle CI to iPhone 6s to be consistent with the snapshot tests that run internally at Facebook.
Integration tests are not fully fixed yet, but I can confirm the following tests are fixed by this diff:
```
-[RNTesterIntegrationTests testImageSnapshotTest]
-[RNTesterIntegrationTests testSimpleSnapshotTest]
-[RNTesterSnapshotTests testARTExample]
-[RNTesterSnapshotTests testLayoutExample]
-[RNTesterSnapshotTests testSliderExample]
-[RNTesterSnapshotTests testSwitchExample]
-[RNTesterSnapshotTests testTabBarExample]
-[RNTesterSnapshotTests testTextExample]
-[RNTesterSnapshotTests testViewExample]
```
I've also fixed a few shellcheck warnings in related scripts.
Reviewed By: fkgozali
Differential Revision: D13506865
fbshipit-source-id: dab985130c2ff3cb9dea19d1f87c8ee65d8c141e
Summary:
This change enables built-in Yoga mechanism which rounds producing layout metrics to closest "pixel" values.
See previous diff for more context.
Reviewed By: fkgozali
Differential Revision: D6889762
fbshipit-source-id: bc2eea44704db4b377e2e14fab9f67be8c935719
Summary:
Fix issues with the react-native CLI when linking iOS and tvOS libraries to a project created with `react-native init`. (#13783)
Verified the changes against test project at https://github.com/dlowder-salesforce/react-native-link-test. Both `react-native link react-native-svg` and `react-native unlink react-native-svg` work correctly on this project. Added new unit test for the new file added to `local-cli/link/ios`.
[CLI] [BUGFIX] `react-native link` has been fixed to correctly link iOS and tvOS targets.
[IOS] [BUGFIX] `react-native link` has been fixed to correctly link iOS and tvOS targets.
Closes https://github.com/facebook/react-native/pull/17231
Differential Revision: D6837567
Pulled By: hramos
fbshipit-source-id: 234d3d3966ae1b89cd16a37c95d303553f7ba5f5
Summary:
This is a long story. Awhile ago awesome Nick Lockwood (Hey Nick!) introduced a special optimization for ReactNative rendering layer called "inherited background color".
He described this idea in D2811031:
>>>
Blending semitransparent pixels against their background is fairly a fairly expensive operation on mobile GPUs. To reduce blending, React Native has a system called "background color propagation", where the background color of parent views is automatically inherited by child views unless explicitly overridden. This means that translucent pixels can be blended directly against a known background color, avoiding the need to do this dynamically on the GPU.
In practice, this is only useful for views that do their own drawing, which is basically just <Image/> and <Text/> components, and for image components it only really matters when the image has an alpha component.
The automatic background propagation is a bit of a hack, and often does the wrong thing - for example if a view overflows its bounds, or if it overlaps a sibling, the background color will often be incorrect and need to be manually disabled. Because the only place that it provides a significant performance benefit is for text, this diff disables the behavior for everything except <Text/> nodes. It might still be useful for <Image/> nodes too, but looking through the examples in UIExplorer, the number of places where it does the wrong thing for images outnumbers the cases where it provides significant reduction in blending.
However. I think it is time to remove it. Why? There are several reasons:
* It drastically complicates rendering layer. DRASTICALLY. In many many unrelated places (try search for "backgroundColor"!);
* This mechanism is totally non-conceptual to RN and it prevents us to implement some new possible render optimization that we plan to do;
* This adopted only by two components now: Text and ART;
* This is not a significant performance drain anymore; from iOS 6 even UILabel has clear background color by default.
* I doubt that it even works now because `drawRect:` in Text component does not call super method.
So, this diff just turns this feature off for Text. If all performance metrics are neutral, I will delete this mechanism.
Peace.
Reviewed By: sahrens
Differential Revision: D6564199
fbshipit-source-id: 70524fdd955ca32bbf86d2d1ff5e73316b791219
Summary:
It makes possible to just specify remote url for the <Image> and it will work.
`<Image source={{uri: 'https://facebook.github.io/react/img/logo_og.png'}} />`
Reviewed By: javache
Differential Revision: D5196055
fbshipit-source-id: aaf139c4518cc35d1f4cf810bbf0305aad73a55b
Summary:
Now intrinsic content size of <Image> is implemented natively on iOS and now it is actually
`intrinsicContentSize`, not just overrided `height` and `width` styles (which was incorrect and hacky).
This change also removes support of nested content inside <Image>.
This is a first commit in the row where we improve <Image> implementation.
Reviewed By: mmmulani
Differential Revision: D5189017
fbshipit-source-id: eab3defa3d86a5d4219b4f4925ab7460b58d760f
Summary:
The icon size in the test/example cannot be rounded correctly as 3x image, causing redbox like:
```
-[RNTesterSnapshotTests testTabBarExample] : failed: caught "NSInternalInconsistencyException", "RedBox error: Error setting property 'icon' of RCTTabBarItem with tag #14: Image source flux@3x.png size {33, 33} does not match loaded image size {33.333333333333336, 33.333333333333336}."
```
This simply resizes them from 100x100 to 99x99
Reviewed By: javache
Differential Revision: D5747345
fbshipit-source-id: 084b4b028436b18dab324fef1fb0a4365072be75
Summary:
Flashing scroll indicators is a standard behavior on iOS to show the user there's more content.
Launch RNTester on iOS, go to the ScrollView section, tap the "Flash scroll indicators" button.
You'll see this:
I've exposed the method `flashScrollIndicators` on all scrolling components that were already exposing a `scrollToXXX` method so it's usable from those components using a ref.
Let me know what you think.
Closes https://github.com/facebook/react-native/pull/14058
Differential Revision: D5103239
Pulled By: shergin
fbshipit-source-id: caad8474fbe475065418d771b17e4ea9766ffcdc
Summary:
We found that `-[CALayer renderInContext:]` produces bad results in some cases (which is actually documented thing!),
so we decided to replace it with `-[UIView drawViewHierarchyInRect:]` which is more reliable (I hope).
As part of this change I completly removed support of `CALayer` from local fork of `RNTesterIntegrationTests`.
See https://github.com/facebook/react-native/pull/14011#issuecomment-303844580 for more details.
janicduplessis
Reviewed By: javache
Differential Revision: D5129492
fbshipit-source-id: 6a9227037c85bb8f862d55267f5301e177985ad9
Summary:
**Motivation**
The ART library is part of the react-native repo, but is not included in UIExplorer and has no native testing. This PR adds the ART library to UIExplorer, adds an example tab for it, and adds a snapshot test.
**Test plan**
New snapshot test.
Closes https://github.com/facebook/react-native/pull/13621
Differential Revision: D4954082
Pulled By: javache
fbshipit-source-id: 83e21c5df1b766ff6ca9f8914eb3382f7323627d
Héctor Ramos
Mike Grabowski
Samuel Susla
Janic Duplessis
zhongwuzw
ericlewis
Héctor Ramos
Brent Erickson
Woraphot Chokratanasombat
Radek Czemerys
Nicolas Charpentier
Valentin Shergin
Douglas Lowder
Mehdi Mulani
Kevin Gozali
Jean Regisser
Eric Vicenti
