React Native Router Flux-如何在Android中访问从导航栏（而非硬件后退按钮）按下的后退？

Question

First of all, I'm very new to react native. I have used react native router flux for navigation in my project.

Problem: I want to check if the user has pressed back from top bar(navigation bar). I know how to listen to hardware back button press.

But I cannot figure out how to listen if the user has pressed back from top bar.

I searched for almost everyday possible. But I'm not able to get the solution.

Any suggestions .

Answer 1

Register your scene as:

<Scene 
         key="latest"
         title="LATEST"
         titleStyle={{flex:0}}
         component={Latest}
         onRight={()=>{}} 
         rightButtonImage={NOTIFICATION_ICON}
         onLeft={()=>{}}
         leftButtonImage={NAV_SEARCH_ICON}
/>

and then in your componentDidMount() use setParams() as:

componentDidMount() {
          this.props.navigation.setParams({
               'onRight': this.showNotifications,
               'onLeft': this.showSearch,
         })
  }

and implement showSearch or showNotifications method.

That's it .