how to finish application in android

Question

How do i finish application? I use below code but is only finish current activity, go back to previous activity. I want to finish activity when button click i try finish(); system.exit(0); but not helping me

    buttonwithleft.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {
            quit(); 
        }
    });
    public void quit() {
    int pid = android.os.Process.myPid();
    android.os.Process.killProcess(pid);

    System.exit(0);
   }

you should not doing this at all ... http://stackoverflow.com/questions/2042222/close-application-and-launch-home-screen-on-android/2043302#2043302 and http://stackoverflow.com/questions/2033914/quitting-an-application-is-that-frowned-upon/2034238#2034238 — Selvin, Jun 25 '13 at 08:37

score 1 · Answer 1 · answered Jun 25 '13 at 09:29

Try this code... I hope it is useful for you.

buttonwithleft.setOnClickListener(new OnClickListener() {

    @Override
    public void onClick(View v) {
        quit(); 
    }
});
public void quit() {
    Intent startMain = new Intent(Intent.ACTION_MAIN);
    startMain.addCategory(Intent.CATEGORY_HOME);
    startMain.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
    startMain.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
    startActivity(startMain);
}

that code working for me... and I think also working for you...

Raghu Mudem · Answer 2 · 2019-05-23T20:01:33.170

If you want to finish all activities of your application you should maintain this flow.

Assume i am in Activity D. My actual flow is A->B->C->D.i want to kill my previous activities A,B,C. I used to call my first activity A when i am going from Activity D. So i added intent FLAG_ACTIVITY_CLEAR_TOP to call activity A. So the middle activities will cleared and will show only Activity A. And i am passing some flag value as intent extras to activity A. like this

         Intent intent = new Intent(D.this,A.class);
                intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
                intent.putExtra("finishstatus", true);
                this.startActivity(intent);
                this.finish();

and i am checking the bundle value in onCreate method of Activity A like

       bundle = this.getIntent().getExtras();
        if(bundle!= null)
        {
       boolean isActivityToBeFinish =  this.getIntent().getExtras().getBoolean("finishstatus");
            if(isActivityToBeFinish)
            {
                finish();
            }
        }

If the status value available and it is true the i am finishing the activity A also. So my problem is cleared and i am successfully finishing the all previous activities.

May be my explanation is not good but the final work is this only.

No you should not finish first activity A.You should close when you want to exit from the application. Then only this will work. — Raghu Mudem, Jun 25 '13 at 09:17

score 0 · Answer 3 · answered Jun 25 '13 at 09:23

You can set android:noHistory="true" in your manifest file on each activity, then when you click on your button call the finish(); function. This will exit your application. eg

<application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="name_of_act"
            android:label="@string/app_name"
            android:noHistory="true" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity
            android:name="act_name"
            android:label="@string/app_name"
            android:noHistory="true" >
        </activity>
    </application>

how to finish application in android

3 Answers3