DeviceEventEmitter
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從C頁(yè)面跳轉(zhuǎn)到A頁(yè)面溃槐，并不會(huì)調(diào)用render酌予，而A頁(yè)面的數(shù)據(jù)此時(shí)需要刷新观游，怎么辦？使用DeviceEventEmitter
import {DeviceEventEmitter} from 'react-native';
componentDidMount() {
this.subscription = DeviceEventEmitter.addListener('UPDATE_USER_DATA', this.refreshData)
};
refreshData(data) {
this.setState({
data: data,
});
};
componentWillUnmount() {
this.subscription.remove();
};
C頁(yè)面的action文件中
export function addHijackPassword(navigation, holdingPassword) {
navigation.navigate('A')
return (dispatch, getState) => {
....
DeviceEventEmitter.emit('UPDATE_USER_DATA');
}
}
