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https://github.com/jmstout/react-native-TouchableSetActive

Touchable component for React Native that enables more advanced styling by setting an active state. Most useful for building your own touchable/button components on top of.
https://github.com/jmstout/react-native-TouchableSetActive

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Touchable component for React Native that enables more advanced styling by setting an active state. Most useful for building your own touchable/button components on top of.

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README 

        
# react-native-TouchableSetActive

Touchable component for [React Native](https://github.com/facebook/react-native) that enables more advanced styling by setting an active state. Most useful for building your own touchable/button components on top of.



## Install

```sh

$ npm install react-native-touchable-set-active --save

```



## Usage

First, require the `TouchableSetActive` component in your project.

```javascript

var TouchableSetActive = require('react-native-touchable-set-active');

```



There are two different ways you can use this component. They both involve passing a value to the `setActive` property on `TouchableSetActive`.



###setActive={this}

The simplest implementation is achieved by just passing `this`. The component will set an `active` state (using `this.setState`) on the parent component. To toggle a style, set one conditionally in the style property that is dependent on `this.state.active`.



```javascript

class ExampleButton extends React.Component {

  constructor(props) {

    super(props);

    this.state = {};

  }

  render() {

    return(

      

        

          Example Button

        

      

    );

  }

}

```



###setActive={*function*}

Instead of passing `this`, you can provide a function. It will be called whenever the component's active state changes, with a boolean value representing the active state as the only argument.

```javascript

class ExampleButton extends React.Component {

  constructor(props) {

    super(props);

    this.state = {

      active: false,

    };

  }

  render() {

    return(

       {

          this.setState({active: isActive});

        }}

        style={[

          !this.state.active && styles.inactiveButton,

          this.state.active && styles.activeButton,

        ]}

      >

        

          Example Button

        

      

    );

  }

}

```



## Additional Props

`TouchableSetActive` is just like any other [Touchable component](https://facebook.github.io/react-native/docs/touchablewithoutfeedback.html) in that it supports the following properties:

```javascript

onPressIn

onPressOut

onPress

onLongPress

```



It also supports touchable delay properties that are (*hopefully*) landing in React Native core soon (via [\#1255](https://github.com/facebook/react-native/pull/1255)):

```javascript

/**

 * Delay in ms, from the release of the touch, before onPress is called.

 */

delayOnPress: React.PropTypes.number,

/**

 * Delay in ms, from the start of the touch, before onPressIn is called.

 */

delayOnPressIn: React.PropTypes.number,

/**

 * Delay in ms, from the release of the touch, before onPressOut is called.

 */

delayOnPressOut: React.PropTypes.number,

/**

 * Delay in ms, from onPressIn, before onLongPress is called.

 */

delayOnLongPress: React.PropTypes.number,

```

*Support for `delayOnLongPress` is dependent on some underlying changes to the `Touchable` library. Unfortunately, it won't be available until those changes are committed. If you really need it now, take a look at [the PR](https://github.com/facebook/react-native/pull/1255) or [my branch](https://github.com/jmstout/react-native/tree/touchable-custom-delays) which adds this functionality. It should also be noted that until this PR lands, `delayOnPressIn` can be set to a maximum of `249` ms before throwing an error.*



Additionally, the props `delayActive` and `delayInactive` can be used to decouple the active state from the press events.

```javascript

/**

 * Delay in ms, from the start of the touch, before the active state is shown.

 */

delayActive: React.PropTypes.number,

/**

 * Delay in ms, from the start of the active state, before it becomes inactive.

 */

delayInactive: React.PropTypes.number,

```



## License

MIT © [Jeff Stout](http://jmstout.com)