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Exposed scrollEnabled on TextInput (#19330) 

Summary:
On iOS, it is not possible to select a range of text using a `Text` component (see #13938). Because of how the `Text` component is implemented on iOS, this will not work without a complete re-write. On Android however, this is not an issue.

As the `TextInput` component has evolved, it can more or less be used as a drop-in replacement on iOS by setting `multiline={true}` and `editable={false}`. Except for one detail: the text input field has scrolling activated and it's not possible to turn off. (See #1391 and #15962).

This pull request addresses that issue, simply by exposing the `scrollEnabled` property:

```
<TextInput
    multiline
    editable={false}
    scrollEnabled={false}
  />
```

1. Create a multiline `TextInput` component, with the attributes presented above.
2. Run on iOS
3. The `TextInput` field should not be able to scroll

facebook/react-native-website#367

[IOS] [FEATURE] [TextInput] - Made it possible to turn off scrolling on a multiline TextInput component
Pull Request resolved: https://github.com/facebook/react-native/pull/19330

Differential Revision: D9235061

Pulled By: hramos

fbshipit-source-id: 99d278004fc236b47dde7e61d74c71e8a3b9d170
This commit is contained in:
Johannes Baldursson 2018-08-08 18:32:18 -07:00 committed by Facebook Github Bot
parent b21d4914de
commit 610412385b
2 changed files with 7 additions and 0 deletions
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6
Libraries/Components/TextInput/TextInput.js
View File

@ -581,6 +581,12 @@ const TextInput = createReactClass({
* The text color of the placeholder string.
*/
placeholderTextColor: ColorPropType,
/**
* If `false`, scrolling of the text view will be disabled.
* The default value is `true`. Does only work with 'multiline={true}'.
* @platform ios
*/
scrollEnabled: PropTypes.bool,
/**
* If `true`, the text input obscures the text entered so that sensitive text
* like passwords stay secure. The default value is `false`. Does not work with 'multiline={true}'.

1
Libraries/Text/TextInput/RCTBaseTextInputViewManager.m
View File

@ -48,6 +48,7 @@ RCT_REMAP_VIEW_PROPERTY(selectionColor, backedTextInputView.tintColor, UIColor)
RCT_REMAP_VIEW_PROPERTY(spellCheck, backedTextInputView.spellCheckingType, UITextSpellCheckingType)
RCT_REMAP_VIEW_PROPERTY(caretHidden, backedTextInputView.caretHidden, BOOL)
RCT_REMAP_VIEW_PROPERTY(clearButtonMode, backedTextInputView.clearButtonMode, UITextFieldViewMode)
RCT_REMAP_VIEW_PROPERTY(scrollEnabled, backedTextInputView.scrollEnabled, BOOL)
RCT_EXPORT_VIEW_PROPERTY(blurOnSubmit, BOOL)
RCT_EXPORT_VIEW_PROPERTY(clearTextOnFocus, BOOL)
RCT_EXPORT_VIEW_PROPERTY(keyboardType, UIKeyboardType)