React-Native进阶_3.触摸高亮显示TouchableHighlight
程序员文章站
2022-05-28 22:29:29
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在安卓原生ListView 点击 其中一个子视图时,会有高亮效果,这个效果在ReactNative 中通过TouchableHighlight 实现,具体使用如下
4.触摸高亮显示 TouchableHighlight
/**
* Sample React Native App
* https://github.com/facebook/react-native
* @flow
*/
'use strict'
import React, {Component} from 'react';
import styles from '../Styles/Main';
import {
Text,
Image,
View,
ListView,
ActivityIndicator,
TouchableHighlight,
} from 'react-native';
let REQUEST_URL = 'https://api.douban.com/v2/movie/top250';
export default class Day0718 extends Component {
constructor(props) {
super(props);
this.state = {
dataSource:new ListView.DataSource({rowHasChanged: (r1, r2) => r1 !== r2}),
loaded: false,
};
}
componentDidMount(){
this._fetchData();
}
_fetchData(){
fetch(REQUEST_URL)
.then(response => response.json())
.then(responseData =>{
this.setState({
movies:this.state.dataSource.cloneWithRows(responseData.subjects),
loaded: true,
});
})
.done();
}
render() {
if(!this.state.loaded){
return this._renderLoadingView();
}
return (
<View style={styles.Container}>
<ListView
dataSource={this.state.movies}
renderRow={this._renderMovieList}
style={styles.listView}
/>
</View>
);
}
_renderMovieList(movie){
return(
<TouchableHighlight
underLayColor ="rgba(34,26,38,0.1)"
onPress={() =>{
console.log(`《${movie.title}》`);
}}>
<View style = {styles.item}>
<View style = {styles.itemImage}>
<Image
style ={styles.image}
source ={{uri:movie.images.large}}/>
</View>
<View style = {styles.itemContent}>
<Text style ={styles.itemHeader}>{movie.title}</Text>
<Text style ={styles.itemMeta}>{movie.original_title}({movie.year})</Text>
<Text style ={styles.redText}>{movie.rating.average}</Text>
</View>
</View>
</TouchableHighlight>
);
};
_renderLoadingView(){
return (
<View style ={styles.loading}>
<ActivityIndicator
size = 'large'
color ='#6435c9'
/>
</View>
);
};
}