回鍵時(需要捕獲動作),我們在onDestroy()裡強制退出應用,或直接殺死進程,具體操作代碼如下:
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
//按下鍵盤上返回按鈕
if(keyCode == KeyEvent.KEYCODE_BACK){
new AlertDialog.Builder(this)
.setIcon(R.drawable.services)
.setTitle(R.string.prompt)
.setMessage(R.string.quit_desc)
.setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
}
})
.setPositiveButton(R.string.confirm, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
finish();
}
}).show();
return true;
}else{
return super.onKeyDown(keyCode, event);
}
}
@Override
protected void onDestroy() {
super.onDestroy();
System.exit(0);
//或者下麵這種方式
//android.os.Process.killProcess(android.os.Process.myPid());
}
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