How to exit from the application and show the home screen?

Question

I have an application where on the home page I have buttons for navigation through the application.

On that page I have a button \"EXIT\" which when clicked should t

Answer 1

Here's what i did:

SomeActivity.java

 @Override
    public void onBackPressed() {
            Intent newIntent = new Intent(this,QuitAppActivity.class);
            newIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP|Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NEW_TASK);
            startActivity(newIntent);
            finish();
    }

QuitAppActivity.java

@Override
protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      finish();
}

Basically what you did is cleared all activities from the stack and launch QuitAppActivity, that will finish the task.

Answer 2

There is another option, to use the FinishAffinity method to close all the tasks in the stack related to the app.

See: https://stackoverflow.com/a/27765687/1984636

Answer 3

I tried exiting application using following code snippet, this it worked for me. Hope this helps you. i did small demo with 2 activities

first activity

public class MainActivity extends Activity implements OnClickListener{
    private Button secondActivityBtn;
    private SharedPreferences pref;
    private SharedPreferences.Editor editer;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        secondActivityBtn=(Button) findViewById(R.id.SecondActivityBtn);
        secondActivityBtn.setOnClickListener(this);

        pref = this.getSharedPreferences("MyPrefsFile", MODE_PRIVATE);
        editer = pref.edit();

        if(pref.getInt("exitApp", 0) == 1){
            editer.putInt("exitApp", 0);
            editer.commit();
            finish();
        }
    }
    @Override
    public void onClick(View v) {
        switch (v.getId()) {
        case R.id.SecondActivityBtn:
            Intent intent= new Intent(MainActivity.this, YourAnyActivity.class);
            startActivity(intent);
            break;
        default:
            break;
        }
    }
}

your any other activity

public class YourAnyActivity extends Activity implements OnClickListener {
    private Button exitAppBtn;
    private SharedPreferences pref;
    private SharedPreferences.Editor editer;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_any);

        exitAppBtn = (Button) findViewById(R.id.exitAppBtn);
        exitAppBtn.setOnClickListener(this);

        pref = this.getSharedPreferences("MyPrefsFile", MODE_PRIVATE);
        editer = pref.edit();
    }

    @Override
    public void onClick(View v) {
        switch (v.getId()) {
        case R.id.exitAppBtn:
            Intent main_intent = new Intent(YourAnyActivity.this,
                    MainActivity.class);
            main_intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
            startActivity(main_intent);
            editer.putInt("exitApp",1);
            editer.commit();
            break;
        default:
            break;
        }
    }
}

Answer 4

Android's design does not favor exiting an application by choice, but rather manages it by the OS. You can bring up the Home application by its corresponding Intent:

Intent intent = new Intent(Intent.ACTION_MAIN);
intent.addCategory(Intent.CATEGORY_HOME);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);

Answer 5

When u call finish onDestroy() of that activity will be called and it will go back to previous activity in the activity stack... So.. for exit do not call finish();

Answer 6

(I tried previous answers but they lacks in some points. For example if you don't do a return; after finishing activity, remaining activity code runs. Also you need to edit onCreate with return. If you doesn't run super.onCreate() you will get a runtime error)

Say you have MainActivity and ChildActivity.

Inside ChildActivity add this:

Intent intent = new Intent(ChildActivity.this, MainActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
intent.putExtra("EXIT", true);
startActivity(intent);
return true;

Inside MainActivity's onCreate add this:

@Override
public void onCreate(Bundle savedInstanceState) {

    mContext = getApplicationContext();

    super.onCreate(savedInstanceState);

    if (getIntent().getBooleanExtra("EXIT", false)) {
        finish();
        return;
    }
    // your current codes
    // your current codes
}