152 lines
3.7 KiB
Markdown
152 lines
3.7 KiB
Markdown
---
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id: touchablenativefeedback
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title: TouchableNativeFeedback
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layout: docs
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category: components
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permalink: docs/touchablenativefeedback.html
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next: touchableopacity
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previous: touchablehighlight
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---
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A wrapper for making views respond properly to touches (Android only).
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On Android this component uses native state drawable to display touch
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feedback.
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At the moment it only supports having a single View instance as a child
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node, as it's implemented by replacing that View with another instance of
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RCTView node with some additional properties set.
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Background drawable of native feedback touchable can be customized with
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`background` property.
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Example:
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```
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renderButton: function() {
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return (
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<TouchableNativeFeedback
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onPress={this._onPressButton}
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background={TouchableNativeFeedback.SelectableBackground()}>
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<View style={{width: 150, height: 100, backgroundColor: 'red'}}>
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<Text style={{margin: 30}}>Button</Text>
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</View>
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</TouchableNativeFeedback>
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);
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},
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```
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### Props
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* [TouchableWithoutFeedback props...](docs/touchablewithoutfeedback.html#props)
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- [`background`](docs/touchablenativefeedback.html#background)
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- [`useForeground`](docs/touchablenativefeedback.html#useforeground)
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### Methods
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- [`SelectableBackground`](docs/touchablenativefeedback.html#selectablebackground)
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- [`SelectableBackgroundBorderless`](docs/touchablenativefeedback.html#selectablebackgroundborderless)
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- [`Ripple`](docs/touchablenativefeedback.html#ripple)
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- [`canUseNativeForeground`](docs/touchablenativefeedback.html#canusenativeforeground)
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---
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# Reference
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## Props
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### `background`
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Determines the type of background drawable that's going to be used to
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display feedback. It takes an object with `type` property and extra data
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depending on the `type`. It's recommended to use one of the static
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methods to generate that dictionary.
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| Type | Required |
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| - | - |
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| backgroundPropType | No |
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---
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### `useForeground`
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Set to true to add the ripple effect to the foreground of the view, instead of the
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background. This is useful if one of your child views has a background of its own, or you're
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e.g. displaying images, and you don't want the ripple to be covered by them.
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Check TouchableNativeFeedback.canUseNativeForeground() first, as this is only available on
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Android 6.0 and above. If you try to use this on older versions you will get a warning and
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fallback to background.
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| Type | Required |
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| - | - |
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| bool | No |
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## Methods
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### `SelectableBackground()`
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```javascript
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TouchableNativeFeedback.SelectableBackground()
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```
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Creates an object that represents android theme's default background for selectable elements (?android:attr/selectableItemBackground).
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---
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### `SelectableBackgroundBorderless()`
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```javascript
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TouchableNativeFeedback.SelectableBackgroundBorderless()
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```
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Creates an object that represent android theme's default background for borderless selectable elements (?android:attr/selectableItemBackgroundBorderless).
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Available on android API level 21+.
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---
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### `Ripple()`
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```javascript
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TouchableNativeFeedback.Ripple(color: string, borderless: boolean)
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```
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Creates an object that represents ripple drawable with specified color (as a string). If property `borderless` evaluates to true the ripple will render outside of the view bounds (see native actionbar buttons as an example of that behavior). This background type is available on Android API level 21+.
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**Parameters:**
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| Name | Type | Required | Description |
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| - | - | - | - |
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| color | string | Yes | The ripple color |
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| borderless | boolean | Yes | If the ripple can render outside its bounds |
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---
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### `canUseNativeForeground()`
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```javascript
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TouchableNativeFeedback.canUseNativeForeground()
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```
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Whether native foreground ripple is available on the current version of Android.
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