>我在应用程序中使用 react-native-navigation 作为我的导航,我使用了左/右按钮选项(静态导航器按钮)在导航栏的每一侧实现一些按钮,我可以将其与 onNavigatorEvent(event) 一起使用,并检查按下了哪一个 event.id
这些工作正常,但现在我使用组件(自定义栏)在中间添加了一些自定义按钮。问题是我不知道如何检测按下这些按钮。onNavigatorEvent(event) 似乎没有检测到它们,也不确定如何做到这一点。
基本上,如果按下左按钮,我想显示列表A,如果按下右按钮,则显示列表B,但不知道如何收听onPress事件
自定义栏
import stuff needed
export default class TopBar extends Component {
constructor(props) {
super(props);
this.state = {
leftPressed: true,
rightPressed: false
};
this.leftButton = this.leftButton.bind(this);
this.rightButton = this.rightButton.bind(this);
}
leftButton(){
this.setState({
leftPressed: true,
rightPressed: false
})
}
rightButton(){
this.setState({
leftPressed: false,
rightPressed: true
})
}
render() {
return (
<View style={Styles.container}>
<View style = {[Styles.wrapper, {borderTopLeftRadius: 20, borderBottomLeftRadius: 20}]}>
<TouchableOpacity style={[Styles.button, {alignSelf: 'flex-start'}]} onPress={ this.leftButton }>
<Text style={[Styles.text, this.state.leftPressed && Styles.textSelected]}>All Tasks</Text>
</TouchableOpacity>
</View>
<View style = {[Styles.wrapper, {borderTopRightRadius: 20, borderBottomRightRadius: 20}]}>
<TouchableOpacity style={[Styles.button, {alignSelf: 'flex-start'}]} onPress={ this.rightButton }>
<Text style={[Styles.text, this.state.rightPressed && Styles.textSelected]}>My Tasks</Text>
</TouchableOpacity>
</View>
</View>
);
}
}
主屏幕
import other stuff needed
import TopBar from '../_shared/components/TopBar';
Navigation.registerComponent('task.TopBar', () => TopBar);
class TaskListComponent extends BaseView {
static navigatorButtons = {
rightButtons: [
{
id: 'Filter',
icon: require('../_shared/components/Images/tune.png'),
},
{
id: 'Search',
icon: require('../_shared/components/Images/search.png'),
}
],
leftButtons: [
{
id: 'Create',
icon: require('../_shared/components/Images/plus.png'),
},
]
}
constructor(props) {
super(props);
this.props.navigator.setOnNavigatorEvent(this.onNavigatorEvent.bind(this));
this.state = {
tasklist: props.TaskList || null
};
onNavigatorEvent(event) {
if (event.type == 'NavBarButtonPress') {
if (event.id == 'Create') {
this.createTask()
}
if (event.id == 'Search') {
this.searchTask()
}
if (event.id == 'Filter') {
this.filterTask()
}
}
}
//code for the left/right buttons goes here
componentDidMount() {
this.props.navigator.setStyle({
navBarCustomView: 'task.TopBar',
navBarComponentAlignment: 'center',
});
}
render() {
if (TopBar leftPressed true) { //I know this is wrong just explaining the logic
return (
<View>
//some stuff
</View>
);
} else {
return (
<View>
//other stuff
</View>
)
}
}
}
按下按钮时,调度深度链接并处理屏幕中的链接。您可以静态调度深度链接,例如:
Navigation.handleDeepLink({link: 'button1Pressed'});