// we want a self defined behavior for the back button @Override public void onBackPressed() { // exit fullscreen mode if it is enabled and action bar is disabled or the back stack is empty if (mIitcWebView.isInFullscreen() && mBackStack.isEmpty()) { mIitcWebView.toggleFullscreen(); return; } // close drawer if opened if (mNavigationHelper.isDrawerOpened()) { mNavigationHelper.closeDrawers(); return; } // kill all open iitc dialogs if (!mDialogStack.isEmpty()) { final String id = mDialogStack.pop(); mIitcWebView.loadUrl( "javascript: " + "var selector = $(window.DIALOGS['" + id + "']); " + "selector.dialog('close'); " + "selector.remove();"); return; } // Pop last item from backstack and pretend the relevant menu item was clicked if (!mBackStack.isEmpty()) { backStackPop(); mBackButtonPressed = true; return; } if (mBackButtonPressed || !mSharedPrefs.getBoolean("pref_press_twice_to_exit", false)) { super.onBackPressed(); } else { mBackButtonPressed = true; Toast.makeText(this, "Press twice to exit", Toast.LENGTH_SHORT).show(); // reset back button after 2 seconds new Handler() .postDelayed( new Runnable() { @Override public void run() { mBackButtonPressed = false; } }, 2000); } }