How to Finish Current Activity in Android

How to finish current activity in Android

If you are doing a loading screen, just set the parameter to not keep it in activity stack. In your manifest.xml, where you define your activity do:

<activity android:name=".LoadingScreen" android:noHistory="true" ... />

And in your code there is no need to call .finish() anymore. Just do startActivity(i);

There is also no need to keep a instance of your current activity in a separate field. You can always access it like LoadingScreen.this.doSomething() instead of private LoadingScreen loadingScreen;

How to finish current activity and launch a new activity Rx way?

Actually you are calling it in a wrong order. You should call startActivity() first before calling finish(). Still, encapsulating this process inside an Observable might introduce an unexpected behavior, because startActivity() is supposed to be called on UI thread as it triggers UI animation/transition to another Activity.

What you want to do is to call both startActivity() and finish() inside onNext() or onComplete() callback. But in case you REALLY need to encapsulate it, you can follow these simple steps:

1. Create a method which handles Activity switching

private fun launchNewActivity() {
    startActivity(Intent())
    finish()
}

2. Encapsulate this method in Observable

Observable.fromCallable(this::launchNewActivity)

You will want to put above Observable inside a CompositeDisposable or a DisposableObserver.

How to finish Activity when starting other activity in Android?

You need to intent your current context to another activity first with startActivity. After that you can finish your current activity from where you redirect.

 Intent intent = new Intent(this, FirstActivity.class);// New activity
 intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
 startActivity(intent);
 finish(); // Call once you redirect to another activity

intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP) - Clears the activity stack. If you don't want to clear the activity stack. PLease don't use that flag then.

Start new Activity and finish current one in Android?

You can use finish() method or you can use:

android:noHistory="true"

And then there is no need to call finish() anymore.

<activity android:name=".ClassName" android:noHistory="true" ... />

How to finish current activity and go back to previous fragment?

use start activity for result

Intent intent=new Intent(getActivity(), SkillActivity.class);
       Bundle bundle = new Bundle();
       bundle.putString("caller","editprofile");
       bundle.putParcelableArrayList("userskills", (ArrayList<Skill>) userskills);
       intent.putExtras(bundle);
       startActivityForResult(intent,122);// you can change this number

and in your activity which hold the fragment add this implementation to pass the result to the fragment

@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
}

and in Done button

btnDone.setOnClickListener(new View.OnClickListener() {
 @Override
 public void onClick(View view) {
 Intent returnIntent = new Intent();
 Bundle args = new Bundle();
 args.putParcelableArrayList("newskills",  
 (ArrayList<Skill>)newskills); 
 returnIntent.putExtras("result", args);                          
 setResult(Activity.RESULT_OK,returnIntent);     
 finish();                      
      }
});

finaly implment this in your fragment to recive the data

@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if(requestCode == 122 && resultCode == Activity.RESULT_OK) {
   Bundel bundle=data.getExtras();
   String caller=data.getString("caller");
   ArrayList<Skill> skills=data.getParcelable("userskills");
 }
}

Finish Current Activity and start a new one

try this code for start browser and clear all the stacks of your application

Intent intent  = new Intent(); // need to set your Intent View here
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);        
getActivity().startActivity(intent);
getActivity().finish();

Updated

Try this attribute in your activity in AndroidManifiest.xml file

<activity android:name=".MainActivity"
        android:excludeFromRecents="true" ...

Back button inside of ActionBar how to finish current Activity

Just do this:

getActionBar().setDisplayHomeAsUpEnabled(true);

on your onCreate() Method. Then put this inside your activity class too:

@Override
public boolean onOptionsItemSelected(MenuItem item) {
     switch (item.getItemId()) {
     case android.R.id.home:
          finish();
          return true;
     default:
          return super.onOptionsItemSelected(item);
     }
}

The finish() function closes your current activity and navigates to the last visited activity in your application, in short words it goes back.

Android close current activity and return to previous activity

Update your first activity (FirstActivity.java)

FirstActivity.java

1. Use startActivityForResult(uninstallIntent, 1); //1 is REQUEST_CODE

2. After unintalling app, FirstActivity.onActivityResult will be automatically called, you can use this method to do something.

   @Override
   protected void onActivityResult(int requestCode, int resultCode, Intent data) {
   
   super.onActivityResult(requestCode, resultCode, data);
   if (requestCode == 1) {
       if (resultCode == RESULT_OK) {
           // un-installed successfully
           finish();
       }
       else {
           // failed to un-install
       }
     }
   }
   

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