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react-nativenavigation-drawerreact-navigation-v5stack-navigator

undefined is not an object (evaluating this.props.navigation.dispatch)


I'm trying to use this.props.navigation.dispatch(DrawerActions.toggleDrawer()) in the following code but it takes this.props.navigation.dispatch as undefined. My code:

//...imports
//set the function drawer inside a bottom tab navigator (works fine)

drawer = () => {
  return(
     <Drawer.Navigator>
       <Drawer.Screen name="first" component={firstScreen} />
       <Drawer.Screen name="second" children={this.TopTabStack} />
     </Drawer.Navigator>
  )
 }

 TopTab = () => {
   return(
     <MaterialTopTabs.Navigator
     initialRouteName="third"
     >
         <MaterialTopTabs.Screen name="third" component={thirdScreen} />
         <MaterialTopTabs.Screen name="fourth" component={fourthScreen} />
       </MaterialTopTabs.Navigator>
   )
 }

 TopTabStack = () => {
   return(
     <Stack.Navigator>
       <Stack.Screen name="second" children={this.TopTab} options={{
         headerRight: this.TopTabRightStack
       }} />
     </Stack.Navigator>
   )
 }

 TopTabRightStack = () => {
   return(
     <View>
       <TouchableWithoutFeedback onPress={async () => {this.props.navigation.dispatch(DrawerActions.toggleDrawer())}}>
         <Ionicons name="ios-menu" size={26} />
       </TouchableWithoutFeedback>
     </View>
   )
 }

Solution

  • OK, got it:

    //...imports
    //set the function drawer inside a bottom tab navigator (works fine)
    
    drawer = () => {
      return(
         <Drawer.Navigator>
           <Drawer.Screen name="first" component={firstScreen} />
           <Drawer.Screen name="second" children={this.TopTabStack} />
         </Drawer.Navigator>
      )
     }
    
     TopTab = () => {
       return(
         <MaterialTopTabs.Navigator
         initialRouteName="third"
         >
             <MaterialTopTabs.Screen name="third" component={thirdScreen} />
             <MaterialTopTabs.Screen name="fourth" component={fourthScreen} />
           </MaterialTopTabs.Navigator>
       )
     }
    
     TopTabStack = ({navigation) => {
       return(
         <Stack.Navigator>
           <Stack.Screen name="second" children={this.TopTab} options={{
             headerRight: () => (
              <View>
               <TouchableWithoutFeedback onPress={async () = {navigation.dispatch(DrawerActions.toggleDrawer())}}>
                <Ionicons name="ios-menu" size={26} />
               </TouchableWithoutFeedback>
              </View>
            ),
           }} />
         </Stack.Navigator>
       )
     }