react-native/Libraries/Components/ScrollView/processDecelerationRate.js

33 lines
665 B
JavaScript

/**
* Copyright (c) 2015-present, Facebook, Inc.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
* @format
* @flow
*/
'use strict';
const Platform = require('Platform');
function processDecelerationRate(
decelerationRate: number | 'normal' | 'fast',
): number {
if (decelerationRate === 'normal') {
return Platform.select({
ios: 0.998,
android: 0.985,
});
} else if (decelerationRate === 'fast') {
return Platform.select({
ios: 0.99,
android: 0.9,
});
}
return decelerationRate;
}
module.exports = processDecelerationRate;