Files
react-native/Libraries/Utilities/NativeDeviceInfo.js
T
Spencer Ahrens 5ec382d1be New useWindowDimensions hook to replace most Dimensions usage
Summary:
Automatically provides and subscribes to dimension updates - super easy usage:
```
function MyComponent(props: Props) {
  const {width, height, scale, fontScale} = useWindowDimensions();
  return <Text ...
};
```

Only window for now - it's what people want 99% of the time, so we'll just shovel out a pit of success for them...

There are still cases where `Dimensions` is needed outside of React component render functions, like in GraphQL variables, so we need to keep the existing module.

Reviewed By: zackargyle

Differential Revision: D16525189

fbshipit-source-id: 0a049fb3be8d92888a8a69e3898d337b93422a09
2019-07-29 11:09:44 -07:00

50 lines
1.1 KiB
JavaScript

/**
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
* @flow strict-local
* @format
*/
'use strict';
import type {TurboModule} from '../TurboModule/RCTExport';
import * as TurboModuleRegistry from '../TurboModule/TurboModuleRegistry';
type DisplayMetricsAndroid = $ReadOnly<{|
width: number,
height: number,
scale: number,
fontScale: number,
densityDpi: number,
|}>;
export type DisplayMetrics = $ReadOnly<{|
width: number,
height: number,
scale: number,
fontScale: number,
|}>;
export type DimensionsPayload = $ReadOnly<{|
window?: DisplayMetrics,
screen?: DisplayMetrics,
windowPhysicalPixels?: DisplayMetricsAndroid,
screenPhysicalPixels?: DisplayMetricsAndroid,
|}>;
export interface Spec extends TurboModule {
+getConstants: () => {|
+Dimensions: DimensionsPayload,
+isIPhoneX_deprecated?: boolean,
|};
}
const NativeModule = TurboModuleRegistry.getEnforcing<Spec>('DeviceInfo');
const NativeDeviceInfo = NativeModule;
export default NativeDeviceInfo;