爲什麼我的意圖不工作？

Question

我有以下代碼：

public class P1R1 extends Activity { 

    int correctCounter; 
    private String[] answerString; 
    private TextView score; 
    private static final Random rgenerator = new Random(); 
    protected static final String EXTRA_playerOneScore = null; 

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

     score = (TextView) findViewById(R.id.score); 

     correctCounter = 0; 

     loadActivity(); 
     //start round timer 
     new CountDownTimer(60000, 1000) { 

      final TextView timer = (TextView) findViewById(R.id.timer); 


      public void onTick(long millisUntilFinished) { 
       timer.setText("Time: " + millisUntilFinished/1000 + "s"); 
      } 

      public void onFinish() { 
       Intent roundOneToTwo = new Intent(getActivity(), R1R2.class); 
       String playerOneScore = String.valueOf(correctCounter); 
       roundOneToTwo.putExtra(EXTRA_playerOneScore, playerOneScore); 
       startActivity(roundOneToTwo); 
      } 
     }.start(); 

我有一個計時器運行，當計時器結束我希望Intent運行，但我得到一個錯誤，我的意圖說The constructor Intent(new CountDownTimer(){}, Class<R1R2>) is undefined。

我確實創建了R1R2類，但是我的意圖仍然給出錯誤。我對android還是個新手，所以如果你能提供幫助，那將會很棒。謝謝！

Answer 1

在地方的

Intent roundOneToTwo = new Intent(this, R1R2.class); 

嘗試

Intent roundOneToTwo = new Intent(P1R1.this, R1R2.class); 

第一個參數的構造函數意向應該是上下文，但你提到過的CountDownTimer。請參閱http://developer.android.com/reference/android/content/Intent.html