本模块将原生的ToastAndroid模块导出为一个JS模块，用于在Android设备上显示一个悬浮的提示信息。本模块包含一个show方法接受以下的参数：

1. String message: 一个字符串，表示将要显示的文本内容。
2. int duration: 提示信息持续显示的时间。可以是ToastAndroid.SHORT或者ToastAndroid.LONG。

还有一个名为showWithGravity的方法可以指定弹出的位置。可选项有：ToastAndroid.TOP, ToastAndroid.BOTTOM, ToastAndroid.CENTER.

用法示例：

ToastAndroid.show('A pikachu appeared nearby !', ToastAndroid.SHORT);
ToastAndroid.showWithGravity('All Your Base Are Belong To Us', ToastAndroid.SHORT, ToastAndroid.CENTER);

截图

方法

属性

例子

'use strict';

var React = require('react');
var ReactNative = require('react-native');
var {
  StyleSheet,
  Text,
  ToastAndroid,
  TouchableWithoutFeedback,
} = ReactNative;

var RNTesterBlock = require('RNTesterBlock');
var RNTesterPage = require('RNTesterPage');

class ToastExample extends React.Component {
  static title = 'Toast Example';
  static description = 'Example that demonstrates the use of an Android Toast to provide feedback.';
  state = {};

  render() {
    return (
      <RNTesterPage title="ToastAndroid">
        <RNTesterBlock title="Simple toast">
          <TouchableWithoutFeedback
            onPress={() =>
              ToastAndroid.show('This is a toast with short duration', ToastAndroid.SHORT)}>
            <Text style={styles.text}>Click me.</Text>
          </TouchableWithoutFeedback>
        </RNTesterBlock>
        <RNTesterBlock title="Toast with long duration">
          <TouchableWithoutFeedback
            onPress={() =>
              ToastAndroid.show('This is a toast with long duration', ToastAndroid.LONG)}>
            <Text style={styles.text}>Click me.</Text>
          </TouchableWithoutFeedback>
        </RNTesterBlock>
        <RNTesterBlock title="Toast with top gravity">
          <TouchableWithoutFeedback
            onPress={() =>
              ToastAndroid.showWithGravity(
                'This is a toast with top gravity',
                ToastAndroid.SHORT,
                ToastAndroid.TOP,
              )
            }>
            <Text style={styles.text}>Click me.</Text>
          </TouchableWithoutFeedback>
        </RNTesterBlock>
        <RNTesterBlock title="Toast with center gravity">
          <TouchableWithoutFeedback
            onPress={() =>
              ToastAndroid.showWithGravity(
                'This is a toast with center gravity',
                ToastAndroid.SHORT,
                ToastAndroid.CENTER,
              )
            }>
            <Text style={styles.text}>Click me.</Text>
          </TouchableWithoutFeedback>
        </RNTesterBlock>
        <RNTesterBlock title="Toast with bottom gravity">
          <TouchableWithoutFeedback
            onPress={() =>
              ToastAndroid.showWithGravity(
                'This is a toast with bottom gravity',
                ToastAndroid.SHORT,
                ToastAndroid.BOTTOM,
              )
            }>
            <Text style={styles.text}>Click me.</Text>
          </TouchableWithoutFeedback>
        </RNTesterBlock>
      </RNTesterPage>
    );
  }
}

var styles = StyleSheet.create({
  text: {
    color: 'black',
  },
});

module.exports = ToastExample;