react-native自动完成文本输入 [英] react-native AutoComplete text input
本文介绍了react-native自动完成文本输入的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
例如,我有一个城镇列表。我需要创建类似
的内容这个
For example, I have a list of towns. I need to create something like this
如何创建它(适用于Android和IOS)?我应该把它储存在哪里?
How to create it (for Android and IOS)? And where I should to store it?
推荐答案
好的,所以基于你给我们的小信息,我试过你可以找到一个快速的例子(根本没有设计)这里
OK, so based on the little information you've given us, I tried to make a quick example (no design at all) that you can find here
我会让你做造型。
从JSON文件中读取数据:检查 this
Reading your data from the JSON file : check this
代码如下:
'use strict';
var React = require('react-native');
var {
AppRegistry,
Component,
StyleSheet,
Text,
TextInput,
ListView,
View,
} = React;
var adresses = [
{
street: "1 Martin Place",
city: "Sydney",
country: "Australia"
},{
street: "1 Martin Street",
city: "Sydney",
country: "Australia"
}
];
var ds = new ListView.DataSource({rowHasChanged: (r1, r2) => r1 !== r2});
class SampleApp extends Component {
constructor(props) {
super(props);
this.state = {
searchedAdresses: []
};
};
searchedAdresses = (searchedText) => {
var searchedAdresses = adresses.filter(function(adress) {
return adress.street.toLowerCase().indexOf(searchedText.toLowerCase()) > -1;
});
this.setState({searchedAdresses: searchedAdresses});
};
renderAdress = (adress) => {
return (
<View>
<Text>{adress.street}, {adress.city}, {adress.country}</Text>
</View>
);
};
render() {
return (
<View style={styles.container}>
<TextInput
style={styles.textinput}
onChangeText={this.searchedAdresses}
placeholder="Type your adress here" />
<ListView
dataSource={ds.cloneWithRows(this.state.searchedAdresses)}
renderRow={this.renderAdress} />
</View>
);
};
}
var styles = StyleSheet.create({
container: {
flex: 1,
justifyContent: 'center',
alignItems: 'center',
backgroundColor: '#FFFFFF',
},
textinput: {
marginTop: 30,
backgroundColor: '#DDDDDD',
height: 40,
width: 200
}
});
AppRegistry.registerComponent('SampleApp', () => SampleApp);
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