Disable back button in android

Question

How to disable back button in android while logging out the application?

Answer 1

Override the onBackPressed method and do nothing if you meant to handle the back button on the device.

@Override public void onBackPressed() {    if (shouldAllowBack()) {        super.onBackPressed();    } else {        doSomething();    } } 

Answer 2

If looking for a higher api level 2.0 and above this will work great

@Override public void onBackPressed() {     // Do Here what ever you want do on back press; } 

If looking for android api level upto 1.6.

@Override public boolean onKeyDown(int keyCode, KeyEvent event) {      if (keyCode == KeyEvent.KEYCODE_BACK) {      //preventing default implementation previous to android.os.Build.VERSION_CODES.ECLAIR      return true;      }      return super.onKeyDown(keyCode, event);     } 

Write above code in your Activity to prevent back button pressed