ProgressBarAndroid

封装了Android平台上的ProgressBar的React组件。这个组件可以用来表示应用正在加载或者有些事情正在进行中。

例子:

render: function() {
  var progressBar =
    <View style={styles.container}>
      <ProgressBar styleAttr="Inverse" />
    </View>;

  return (
    <MyLoadingComponent
      componentView={componentView}
      loadingView={progressBar}
      style={styles.loadingComponent}
    />
  );
},

截图#

属性#

color string #

进度条的颜色。

indeterminate indeterminateType #

决定进度条是否要显示一个不确定的进度。注意这个在styleAttr是Horizontal的时候必须是false。

progress number #

当前的进度值(在0到1之间)。

styleAttr STYLE_ATTRIBUTES #

进度条的样式。可取值有:

  • Horizontal
  • Small
  • Large
  • Inverse
  • SmallInverse
  • LargeInverse

testID string #

用来在端到端测试中定位这个视图。

样例#

'use strict';

var ProgressBar = require('ProgressBarAndroid');
var React = require('React');
var RNTesterBlock = require('RNTesterBlock');
var RNTesterPage = require('RNTesterPage');

var TimerMixin = require('react-timer-mixin');

var MovingBar = React.createClass({
  mixins: [TimerMixin],

  getInitialState: function() {
    return {
      progress: 0
    };
  },

  componentDidMount: function() {
    this.setInterval(
      () => {
        var progress = (this.state.progress + 0.02) % 1;
        this.setState({progress: progress});
      }, 50
    );
  },

  render: function() {
    return <ProgressBar progress={this.state.progress} {...this.props} />;
  },
});

var ProgressBarAndroidExample = React.createClass({

  statics: {
    title: '<ProgressBarAndroid>',
    description: 'Visual indicator of progress of some operation. ' +
        'Shows either a cyclic animation or a horizontal bar.',
  },

  render: function() {
    return (
      <RNTesterPage title="ProgressBar Examples">
        <RNTesterBlock title="Default ProgressBar">
          <ProgressBar />
        </RNTesterBlock>

        <RNTesterBlock title="Small ProgressBar">
          <ProgressBar styleAttr="Small" />
        </RNTesterBlock>

        <RNTesterBlock title="Large ProgressBar">
          <ProgressBar styleAttr="Large" />
        </RNTesterBlock>

        <RNTesterBlock title="Inverse ProgressBar">
          <ProgressBar styleAttr="Inverse" />
        </RNTesterBlock>

        <RNTesterBlock title="Small Inverse ProgressBar">
          <ProgressBar styleAttr="SmallInverse" />
        </RNTesterBlock>

        <RNTesterBlock title="Large Inverse ProgressBar">
          <ProgressBar styleAttr="LargeInverse" />
        </RNTesterBlock>

        <RNTesterBlock title="Horizontal Indeterminate ProgressBar">
          <ProgressBar styleAttr="Horizontal" />
        </RNTesterBlock>

        <RNTesterBlock title="Horizontal ProgressBar">
          <MovingBar styleAttr="Horizontal" indeterminate={false} />
        </RNTesterBlock>

        <RNTesterBlock title="Large Red ProgressBar">
          <ProgressBar styleAttr="Large" color="red" />
        </RNTesterBlock>

        <RNTesterBlock title="Horizontal Black Indeterminate ProgressBar">
          <ProgressBar styleAttr="Horizontal" color="black" />
        </RNTesterBlock>

        <RNTesterBlock title="Horizontal Blue ProgressBar">
          <MovingBar styleAttr="Horizontal" indeterminate={false} color="blue" />
        </RNTesterBlock>
      </RNTesterPage>
    );
  },
});

module.exports = ProgressBarAndroidExample;