export default class A extends Component {
constructor(props) {
super(props)
this.state = {
items: Items
}
}
componentWillMount() {
var ds = new ListView.DataSource({
rowHasChanged: (r1,r2) => r1 !== r2
});
this.dataSource = ds.cloneWithRows(this.state.items);
}
_renderRow(rowData) {
return (
<View key = { rowData.id } >
<TouchableHighlight
onPress={ () => console.log(this.state) }>
{ Registry.render(rowData) }
</TouchableHighlight>
</View>
);
}
我正在尝试从匿名函数中控制日志类的状态,并且我得到了未定义。我必须绑定范围吗?我试过没有成功。
答案 0 :(得分:-1)
使用_renderRow = (rowData) => {
return (
<View key = { rowData.id } >
<TouchableHighlight
onPress={ () => console.log(this.state) }>
{ Registry.render(rowData) }
</TouchableHighlight>
</View>
);
}
lambda函数提供此词法绑定。更改函数的代码如下:
Eclipse