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closing application on hardware back button in android


By : mah
Date : October 16 2020, 03:08 PM
Does that help Create a function onActivityResult to your LoginActivity and call the MainActivity using the startActivityForResult()
EXAMPLE:
code :
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    startActivityForResult(new Intent(this, MainActivity.class), 1);
}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if (resultCode == RESULT_OK) {
        if (data.getBooleanExtra("EXIT", false)) {
            finish();
        }
    }
}
@Override
public void onBackPressed() {
    // super.onBackPressed();
    Intent intent = new Intent();
    intent.putExtra("EXIT", true);
    setResult(RESULT_OK, intent);
    finish();
}


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How to void application exit when press hardware back button android?


By : user11883
Date : March 29 2020, 07:55 AM
hope this fix your issue Don't mess with the back button behavior. In this case, you have to use a service to play and control your music. And stop the service when you want to stop the music.
You can send an Intent to the service and so, control the actions of your player. The activity is not a background class. Your Activity is the view of your application, so, if user want to leave the activity will be killed. So, to keep the sound playing (like a player) you have to user the service.

Exit application from android hardware back button in phonegap


By : user2866364
Date : March 29 2020, 07:55 AM
I wish this help you Is there a way to show a confirmation popup when you press the hardware back button in android devices to exit the phonegap/ionic application? , Try this:
code :
document.addEventListener('backbutton', function(event){
  event.preventDefault(); // EDIT
  navigator.app.exitApp(); // exit the app
});

React-Native: Go back on android hardware back button pressed


By : Deepak Kumar
Date : March 29 2020, 07:55 AM
it fixes the issue I am trying to add going back on webview when the android backbutton was pressed and I still couldn't manage to make it work.
code :
class MyComponent extends Component {
    state = {};
    componentDidMount(){
         BackHandler.addEventListener('hardwareBackPress', this.backHandler);
    }
    componentWillUnmount(){
         BackHandler.removeEventListener('hardwareBackPress', this.backHandler);
    }
    backHandler = () => {
        if(this.state.backButtonEnabled) {
            this.refs[WEBVIEW_REF].goBack();
            return true;
        }
    }
}

Android back stack one fragment, when pressing hardware back button shows the back stacked one.


By : laurablogist
Date : March 29 2020, 07:55 AM
I hope this helps you . You can handle onBackPressed method in this method, comment the line //super.onBackPressed();
code :
    @Override
        public void onBackPressed() {
//            super.onBackPressed();
//Now check if current fragment is not home fragment
// then replace current fragment with home fragment
//if current fragment is home fragment then execute the following code
Intent homeIntent = new Intent(Intent.ACTION_MAIN);
    homeIntent.addCategory( Intent.CATEGORY_HOME );
    homeIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);  
    startActivity(homeIntent); 

        }

React native router flux - How to access back pressed from navigation bar (not hardware back button) in android?


By : Julio César
Date : March 29 2020, 07:55 AM
I hope this helps you . First of all, I'm very new to react native. I have used react native router flux for navigation in my project. , Register your scene as:
code :
<Scene 
         key="latest"
         title="LATEST"
         titleStyle={{flex:0}}
         component={Latest}
         onRight={()=>{}} 
         rightButtonImage={NOTIFICATION_ICON}
         onLeft={()=>{}}
         leftButtonImage={NAV_SEARCH_ICON}
/>
componentDidMount() {
          this.props.navigation.setParams({
               'onRight': this.showNotifications,
               'onLeft': this.showSearch,
         })
  }
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