react-native-popover

0.4.0

升级支持react16.2

A <Popover> component for react-native. This is still very much a work in progress and only handles the simplest of cases, ideas and contributions are very welcome.

Install

npm i --save react-native-popover

Usage

'use strict';

var React = require('react');
var Popover = require('react-native-popover');
var {
  AppRegistry,
  StyleSheet,
  Text,
  TouchableHighlight,
  View,
} = require('react-native');

var PopoverExample = React.createClass({
  getInitialState() {
    return {
      isVisible: false,
      buttonRect: {},
    };
  },

  showPopover() {
    this.refs.button.measure((ox, oy, width, height, px, py) => {
      this.setState({
        isVisible: true,
        buttonRect: {x: px, y: py, width: width, height: height}
      });
    });
  },

  closePopover() {
    this.setState({isVisible: false});
  },

  render() {
    return (
      <View style={styles.container}>
        <TouchableHighlight ref='button' style={styles.button} onPress={this.showPopover}>
          <Text style={styles.buttonText}>Press me</Text>
        </TouchableHighlight>

        <Popover
          isVisible={this.state.isVisible}
          fromRect={this.state.buttonRect}
          onClose={this.closePopover}>
          <Text>I'm the content of this popover!</Text>
        </Popover>
      </View>
    );
  }
});

var styles = StyleSheet.create({
  container: {
    flex: 1,
    alignItems: 'center',
    justifyContent: 'center',
    backgroundColor: 'rgb(43, 186, 180)',
  },
  button: {
    borderRadius: 4,
    padding: 10,
    marginLeft: 10,
    marginRight: 10,
    backgroundColor: '#ccc',
    borderColor: '#333',
    borderWidth: 1,
  },
  buttonText: {
  }
});

AppRegistry.registerComponent('PopoverExample', () => PopoverExample);

Displaying the popover on top of other elements

React Native doesn't support directly setting a zIndex on a view. What is recommended instead is to rearrange your view hierarchy and put the popover last at the root of your app. See facebook/react-native#131

However, as an alternative, I recommend you use @brentvatne's react-native-overlay library to wrap <Popover /> and bring it to the front no matter where it sits in the render tree.

Props

Prop | Type | Optional | Default | Description ----------------- | -------- | -------- | ----------- | ----------- isVisible | bool | Yes | false | Show/Hide the popover fromRect | rect | No | {} | Rectangle at which to anchor the popover displayArea | rect | Yes | screen rect | Area where the popover is allowed to be displayed placement | string | Yes | 'auto' | How to position the popover - top | bottom | left | right | auto. When 'auto' is specified, it will determine the ideal placement so that the popover is fully visible within displayArea. onClose | function | Yes | | Callback to be fired when the user taps the popover customShowHandler | function | Yes | | Custom show animation handler - uses a react-tween-state wrapper API in order to show the modal. See default show handler. customHideHandler | function | Yes | | Custom hide animation handler - uses a react-tween-state wrapper API in order to hide the modal. See default hide handler.

rect is an object with the following properties: {x: number, y: number, width: number, height: number}

Credits

The code supporting animations was inspired and adapted from @brentvatne's Transition.js mixin.

MIT Licensed