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warn when setting pagingEnabled when snapToInterval at the same time

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Reviewed By: fkgozali

Differential Revision: D5326342

fbshipit-source-id: 2bf6b66f81e9aedaad288495f254f04af32dc63d
This commit is contained in:
Spencer Ahrens 2017-06-27 16:16:56 -07:00 committed by Facebook Github Bot
parent 2b1795c5ad
commit afa47924d6
1 changed files with 9 additions and 2 deletions
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11
Libraries/Components/ScrollView/ScrollView.js
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@ -32,6 +32,7 @@ const flattenStyle = require('flattenStyle');
const invariant = require('fbjs/lib/invariant');
const processDecelerationRate = require('processDecelerationRate');
const requireNativeComponent = require('requireNativeComponent');
const warning = require('fbjs/lib/warning');
import type {NativeMethodsMixinType} from 'ReactNativeTypes';
@ -313,8 +314,10 @@ const ScrollView = React.createClass({
/**
* When set, causes the scroll view to stop at multiples of the value of
* `snapToInterval`. This can be used for paginating through children
* that have lengths smaller than the scroll view. Used in combination
* with `snapToAlignment`.
* that have lengths smaller than the scroll view. Typically used in
* combination with `snapToAlignment` and `decelerationRate="fast"`.
* Overrides less configurable `pagingEnabled` prop.
*
* @platform ios
*/
snapToInterval: PropTypes.number,
@ -605,6 +608,10 @@ const ScrollView = React.createClass({
if (Platform.OS === 'ios') {
ScrollViewClass = RCTScrollView;
ScrollContentContainerViewClass = RCTScrollContentView;
warning(
!this.props.snapToInterval || !this.props.pagingEnabled,
'snapToInterval is currently ignored when pagingEnabled is true.'
);
} else if (Platform.OS === 'android') {
if (this.props.horizontal) {
ScrollViewClass = AndroidHorizontalScrollView;