如何設置一個android活動的時間限制

Question

我有一個遊戲，如果用戶觸摸錯誤的按鈕，他會去高分頁面，如果他點擊正確的一個，他會進入下一個關卡。我想要做的是如果用戶在1.5秒內完全沒有任何東西（快節奏的遊戲），那麼它會自動回到scores.class活動。我是編程新手，所以任何幫助！謝謝。

Answer 1

這會給你一個想法：

private MainActivity context; 
private CountDownTimer countDownTimer; 
public boolean timerStopped; 


/** Called when the activity is first created. */ 
@Override protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.main); 

    context = this; 

    startTimer(); 

    // method looks at users choice, example 
    /* if (answer == true){ 
     stopTimer(); 
     // go to next question and start timer again.. 
    } 
    else{ 
     // do something 
    } 
    */ 
} 

/** Starts the timer **/ 
public void startTimer() { 
    setTimerStartListener(); 
    timerStopped = false; 
} 

/** Stop the timer **/ 
public void stopTimer() { 
    countDownTimer.cancel(); 
    timerStopped = true; 
} 

/** Timer method: CountDownTimer **/ 
private void setTimerStartListener() { 
    // will be called at every 1500 milliseconds i.e. every 1.5 second. 
    countDownTimer = new CountDownTimer(1500, 1500) { 
     public void onTick(long millisUntilFinished) { 

     } 

     public void onFinish() { 
      // Here do what you like... 
      Intent intent = new Intent(context, Scores.class); 
      startActivity(intent); 
     } 
    }.start(); 
} 

Answer 2

你與CountDownTimer試過嗎？

下面是一個例子：

new CountDownTimer(1500, 1500) { 
     public void onTick(long millisUntilFinished) { 

     } 

     public void onFinish() { 
      // Here do what you like... 
     } 
    }.start(); 

Answer 3

要修復中提到的錯誤：

MainActivity context; 

@Override protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.main); 

    context = this; 

    new CountDownTimer(1500, 1500) { 
     public void onTick(long millisUntilFinished) { 

     } 

     public void onFinish() { 
      // Here do what you like... 
      Intent intent = new Intent(context, Score.class); 
      startActivity(intent); 
     } 
    }.start();