每当我通过点击消息来激活onPress方法时,MessageScreen组件就会重新渲染而不是显示ChatScreen。即使我将ChatScreen替换为其他屏幕,也会发生这种情况。非常感谢任何关于这个问题的帮助。
App.js
<NavigationContainer ref={containerRef} initialState={initialNavigationState}>
<Drawer.Navigator>
<Drawer.Screen name="Feed" component={BottomTabNavigator} options={{swipeEnabled: false}} />
<Drawer.Screen name="Settings" component={SettingsStack} options={{swipeEnabled: false}} />
</Drawer.Navigator>
</NavigationContainer>
BottomTabNavigator
const BottomTab = createBottomTabNavigator();
export default function BottomTabNavigator({ navigation, route }) {
{...HomeStack Code}
{...ProfileStack Code}
const MyMessagesStack = createStackNavigator();
function MessagesStack() {
return (
<MyMessagesStack.Navigator initialRouteName={"Messages"}
screenOptions={{headerShown: false}}>
<MyMessagesStack.Screen name="Messages" component={MessagesScreen} />
<MyMessagesStack.Screen name="Chats" component={ChatScreen} />
</MyMessagesStack.Navigator>
);
}
return (
<BottomTab.Navigator initialRouteName={INITIAL_ROUTE_NAME} >
<BottomTab.Screen
name="Home"
component={HomeStack}
options={{title: 'Feed'}}
/>
<BottomTab.Screen
name="Messages"
component={MessagesStack}
options={{title: 'Messages'}}
/>
<BottomTab.Screen
name="Profile"
component={ProfileStack}
options={{title: 'Profile'}}
/>
</BottomTab.Navigator>
);
}
消息屏(MessageScreen.js)
//flatscreen to render message components
</View>
<FlatList
data={Data}
keyExtractor={(item, index) => index.toString()}
renderItem={({ item }) => (
<TouchableOpacity onPress={() => props.navigation.navigate('Chats')} >
<Message
image={item.image}
name={item.name}
lastMessage={item.message}
timeStamp={item.timestamp}
opened
/>
</TouchableOpacity>
)}
/>
你的组件重装的原因是由于有一些组件定义在其他组件中。
function BottomTabNavigator() {
// Here
function MessagesStack() {
// ...
}
// ...
}
你需要在外部定义它们来避免这种情况。
function MessagesStack() {
// ...
}
function BottomTabNavigator() {
// ...
}