[备忘]Andoird程序中捕获Back按键在退出前弹出确认提示的代码

@Override public boolean onKeyDown(int keyCode, KeyEvent event) { //Handle the back button if(keyCode == KeyEvent.KEYCODE_BACK) { //Ask the user if they want to quit new AlertDialog.Builder(this) .setIcon(android.R.drawable.ic_dialog_alert) .setTitle(R.string.quit) .setMessage(R.string.really_quit) .setPositiveButton(R.string.yes, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { //Stop the activity YourClass.this.finish(); } }) .setNegativeButton(R.string.no, null) .show(); return true; } else { return super.onKeyDown(keyCode, event); } }

 

stackoverflow原文链接：http://stackoverflow.com/questions/2257963/android-how-to-show-dialog-to-confirm-user-wishes-to-exit-activity