@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if (keyCode==KeyEvent.KEYCODE_BACK) {
exitBy2Click();
}
return false;
}
private static Boolean isExit = false;
private void exitBy2Click() {
Timer tExit = null;
if (isExit == false) {
isExit = true; // 準(zhǔn)備退出
Toast.makeText(this, "再按一次退出程序", Toast.LENGTH_SHORT).show();
tExit = new Timer();
tExit.schedule(new TimerTask() {
@Override
public void run() {
isExit = false; // 取消退出
}
}, 2000); // 如果2秒鐘內(nèi)沒有按下返回鍵弄诲，則啟動(dòng)定時(shí)器取消掉剛才執(zhí)行的任務(wù)
} else {
AppManager.getAppManager().AppExit(this);
System.exit(0);
}
}
