背景图像和反应本机上的滚动视图

Background image and scrollview on react native

本文关键字：滚动 视图 本机 图像 背景      更新时间：2023-09-26

我正在使用 react native 构建一个应用程序，并希望实现一个背景图像和一个滚动视图，它像雅虎天气应用程序一样叠加在背景图像之上。

但我无法让它工作。

请帮忙。

要获得此效果，您需要设置一个绝对定位的图像，然后在视图顶部放置一个滚动视图：

'use strict';
var React = require('react-native');
var {
  AppRegistry,
  StyleSheet,
  Text,
  View,
  Dimensions,
  ScrollView,
  Image
} = React;
let width = Dimensions.get('window').width
var SampleApp = React.createClass({
  render: function() {
    return (
      <View style={{ flex:1, backgroundColor: 'transparent' }}>
        <View>
            <Image style={{ height: width, width: width, position: 'absolute', top:0, left:0 }} source={{ uri: 'http://i01.i.aliimg.com/wsphoto/v0/32297951629_5/5pcs-lot-The-Hollowan-Star-Nicolas-Cage-Stylish-Square-Pillowcase-Cushion-Pillow-Cover.jpg' }} />
        </View>
        <ScrollView style={{ flex:1 }}>
          <View>
            <Text>{ipsum}</Text>
          </View>
        </ScrollView>
      </View>
    );
  }
});
var styles = StyleSheet.create({
  container: {
    flex: 1,
    justifyContent: 'center',
    alignItems: 'center',
    backgroundColor: '#F5FCFF',
  },
  welcome: {
    fontSize: 28,
    textAlign: 'center',
    margin: 10,
  },
  instructions: {
    textAlign: 'center',
    color: '#333333',
    fontSize: 19,
    marginBottom: 5,
  },
});
AppRegistry.registerComponent('SampleApp', () => SampleApp);
let ipsum = "Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum."
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