48 lines
1.4 KiB
JavaScript
48 lines
1.4 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.
|
|
*
|
|
* @format
|
|
* @flow
|
|
*/
|
|
|
|
const ReactNative = require('ReactNative');
|
|
const UIManager = require('UIManager');
|
|
|
|
/**
|
|
* Capture an image of the screen, window or an individual view. The image
|
|
* will be stored in a temporary file that will only exist for as long as the
|
|
* app is running.
|
|
*
|
|
* The `view` argument can be the literal string `window` if you want to
|
|
* capture the entire window, or it can be a reference to a specific
|
|
* React Native component.
|
|
*
|
|
* The `options` argument may include:
|
|
* - width/height (number) - the width and height of the image to capture.
|
|
* - format (string) - either 'png' or 'jpeg'. Defaults to 'png'.
|
|
* - quality (number) - the quality when using jpeg. 0.0 - 1.0 (default).
|
|
*
|
|
* Returns a Promise.
|
|
* @platform ios
|
|
*/
|
|
module.exports = function takeSnapshot(
|
|
view?: 'window' | React$Element<any> | number,
|
|
options?: {
|
|
width?: number,
|
|
height?: number,
|
|
format?: 'png' | 'jpeg',
|
|
quality?: number,
|
|
},
|
|
): Promise<any> {
|
|
if (typeof view !== 'number' && view !== 'window') {
|
|
view = ReactNative.findNodeHandle(view) || 'window';
|
|
}
|
|
|
|
// Call the hidden '__takeSnapshot' method; the main one throws an error to
|
|
// prevent accidental backwards-incompatible usage.
|
|
return UIManager.__takeSnapshot(view, options);
|
|
};
|