다른 활동을 종료/종료하는 방법은 무엇입니까?

Question

체스 보드처럼 36 개의 버튼 (6X6)이있는 활동이 있습니다. 그 중 하나를 클릭하면 다른 클래스가 호출되어 질문이 나타납니다. 방법은 다음과 같습니다 (첫 번째 버튼의 예).

public void onClick(View v) { 
     switch(v.getId()){ 

     case R.id.ib1: 

      Intent i = new Intent(Cigle.this, Pitanja_Cigle.class); 
      startActivityForResult(i, B1); 
      break; 

그런 다음 질문이 나타납니다 (Pitanja_Cigle.class).

120 초가 지나면 다른 팝업 클래스 (Popup_opis.class)가 표시되어 사용자에게 시간이 다가 왔고 다른 정보가 표시되며 관련이 없습니다.

게임의 마지막 순간에 36 개의 버튼 중 하나를 클릭하면 질문이 팝업되고 시간이 다되었지만 시간이 지나면 질문에 대답 할 수 없었던 문제는 Popup_opis입니다. 클래스를 팝업하고 그것을 닫으려면 확인을 클릭하면 마지막 질문을 여전히 열어 볼 수 있습니다. 시간이 다 된 순간에 질문 활동을 죽이거나 끝내는 방법?

public class Popup_opis extends Activity implements OnClickListener{ 

    TextView tvOpis,tvNaslov,tvBrojPoena, tvResenje; 
    String primljenOpis, naslov, resenje; 
    int brojPoenaPrimljeno; 
    Button OK; 



    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 

     requestWindowFeature(Window.FEATURE_NO_TITLE); 
     getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN); 

     setContentView(R.layout.popup_opis); 

     Bundle extras = getIntent().getExtras(); 
     if(extras !=null) { 
      primljenOpis = extras.getString("poslatOpis"); 
      brojPoenaPrimljeno = getIntent().getIntExtra("brojPoenaPrimljeno", 0); 
      naslov = extras.getString("naslov"); 
      resenje = extras.getString("resenje"); 
     } 

     initVariables(); 

    } 

    private void initVariables() { 


     Typeface tv = Typeface.createFromAsset(getAssets(), "ARIALN.TTF"); 
     OK = (Button) findViewById(R.id.bOK); 
     tvOpis = (TextView) findViewById(R.id.tvOpis); 
     tvBrojPoena = (TextView) findViewById(R.id.tvBrojPoena); 
     tvBrojPoena.setTypeface(tv); 
     tvNaslov = (TextView) findViewById(R.id.tvNaslov); 
     tvNaslov.setTypeface(tv); 
     tvResenje = (TextView) findViewById(R.id.tvResenje); 
     tvResenje.setTypeface(tv); 
     tvOpis.setTypeface(tv); 
     tvOpis.setText(primljenOpis); 
     tvBrojPoena.setText("Osvojili ste " + brojPoenaPrimljeno + " poena u ovoj igri."); 
     tvNaslov.setText(naslov); 
     tvResenje.setText(resenje); 



    OK.setOnClickListener(new OnClickListener() { 

     public void onClick(View v) { 
      finish(); 
     } 
    }); 
    } 



    public void onBackPressed() { 
     super.onBackPressed(); 
     finish(); 
    } 

    public void onClick(View v) { 
     // TODO Auto-generated method stub 

    } 

} 

그리고 내 질문 클래스, Pitanja_cigle.class :

public class Pitanja_Cigle extends Activity{ 

    public static String tacanOdg; 
    int counter = 0; 

    Button b1, b2, b3, b4; 
    TextView question; 
    boolean tacno = true; 
    boolean pogresno = false; 


LinkedList<Long> mAnsweredQuestions = new LinkedList<Long>(); 

    private String generateWhereClause(){ 
     StringBuilder result = new StringBuilder(); 
     for (Long l : mAnsweredQuestions){ 
      result.append(" AND _ID <> " + l); 
     } 
     return result.toString(); 
    } 

    Runnable mLaunchTaskFinish = new Runnable() { 
     public void run() { 
      finish(); 
     } 
    }; 

    private class Answer { 
     public Answer(String opt, boolean correct) { 
      option = opt; 
      isCorrect = correct; 
     } 

     String option; 
     boolean isCorrect; 
    } 
    Handler mHandler = new Handler(); 

    final OnClickListener clickListener = new OnClickListener() { 
     public void onClick(View v) { 
      Answer ans = (Answer) v.getTag(); 
      if (ans.isCorrect) { 
       Intent resp = new Intent(); 
       resp.putExtra("score", tacno); 
       setResult(1, resp); 
       Intent i = new Intent("rs.androidaplikacije.toplo_hladno.TACANODGOVOR"); 
       startActivity(i); 
       mHandler.postDelayed(mLaunchTaskFinish,1200); 
      } 
      else{ 
       Intent resp = new Intent(); 
       resp.putExtra("score", pogresno); 
       setResult(1, resp); 
       Intent i = new Intent(getApplicationContext(), PogresanOdgovor.class); 
       i.putExtra("tacanOdgovor", tacanOdg); 
       startActivity(i); 
       mHandler.postDelayed(mLaunchTaskFinish,2200); 
      } 
     } 
    }; 


    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 


     requestWindowFeature(Window.FEATURE_NO_TITLE); //full screen 
     getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN); 

     setContentView(R.layout.pitanja_cigle); 

     InicirajVariable(); 

     nextQuestion(); 
    } 

    private void nextQuestion() { 
     counter++; 

     TestAdapter mDbHelper = new TestAdapter(this); 
     DataBaseHelper myDbHelper = new DataBaseHelper(this); 

     if(!myDbHelper.checkDataBase()){ 
     mDbHelper.createDatabase(); 
     } 

     try{ //Pokusava da otvori db 

      mDbHelper.open(); //baza otvorena 

      Cursor c = mDbHelper.getPitanjaCigle(generateWhereClause()); 

      mAnsweredQuestions.add(c.getLong(0)); 

      List<Answer> labels = new ArrayList<Answer>(); 

      labels.add(new Answer(c.getString(2), true)); 
      labels.add(new Answer(c.getString(3), false)); 
      labels.add(new Answer(c.getString(4), false)); 
      labels.add(new Answer(c.getString(5), false)); 

      tacanOdg = c.getString(2); 

      Collections.shuffle(labels); 

      question.setText(c.getString(1)); 

      b1.setText(labels.get(0).option); 
      b1.setTag(labels.get(0)); 
      b1.setOnClickListener(clickListener); 

      b2.setText(labels.get(1).option); 
      b2.setTag(labels.get(1)); 
      b2.setOnClickListener(clickListener); 

      b3.setText(labels.get(2).option); 
      b3.setTag(labels.get(2)); 
      b3.setOnClickListener(clickListener); 

      b4.setText(labels.get(3).option); 
      b4.setTag(labels.get(3)); 
      b4.setOnClickListener(clickListener); 

    } 

    finally{ // kada zavrsi sa koriscenjem baze podataka, zatvara db 
     mDbHelper.close(); 
    } 
    } 

    private void InicirajVariable() { 
     Typeface pitanje = Typeface.createFromAsset(getAssets(), "myriad.ttf"); 
     Typeface dugmad = Typeface.createFromAsset(getAssets(), "Bebas.ttf"); 

     question = (TextView) findViewById(R.id.tvPitanjeCigle); 
     b1 = (Button) findViewById(R.id.bOdgCigle1); 
     b2 = (Button) findViewById(R.id.bOdgCigle2); 
     b3 = (Button) findViewById(R.id.bOdgCigle3); 
     b4 = (Button) findViewById(R.id.bOdgCigle4); 

     b1.setTypeface(dugmad); 
     b2.setTypeface(dugmad); 
     b3.setTypeface(dugmad); 
     b4.setTypeface(dugmad); 
     question.setTypeface(pitanje); 

    } 
} 

스택 추적 :

06-07 14:16:23.631: E/AndroidRuntime(5523): FATAL EXCEPTION: main 
    06-07 14:16:23.631: E/AndroidRuntime(5523): java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=30, result=0, data=null} to activity {rs.androidaplikacije.toplo_hladno/rs.androidaplikacije.toplo_hladno.Cigle}: java.lang.NullPointerException 
    06-07 14:16:23.631: E/AndroidRuntime(5523):  at android.app.ActivityThread.deliverResults(ActivityThread.) 
    06-07 14:16:23.631: E/AndroidRuntime(5523):  at android.app.ActivityThread.handleSendResult(ActivityThread.) 
    06-07 14:16:23.631: E/AndroidRuntime(5523):  at android.app.ActivityThread.access$2000(ActivityThread.) 
    06-07 14:16:23.631: E/AndroidRuntime(5523):  at android.app.ActivityThread$H.handleMessage(ActivityThread.) 
    06-07 14:16:23.631: E/AndroidRuntime(5523):  at android.os.Handler.dispatchMessage(Handler.java:99) 
    06-07 14:16:23.631: E/AndroidRuntime(5523):  at android.os.Looper.loop(Looper.) 
    06-07 14:16:23.631: E/AndroidRuntime(5523):  at android.app.ActivityThread.main(ActivityThread.) 
    06-07 14:16:23.631: E/AndroidRuntime(5523):  at java.lang.reflect.Method.invokeNative(Native Method) 
    06-07 14:16:23.631: E/AndroidRuntime(5523):  at java.lang.reflect.Method.invoke(Method.) 
    06-07 14:16:23.631: E/AndroidRuntime(5523):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.) 
    06-07 14:16:23.631: E/AndroidRuntime(5523):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.) 
    06-07 14:16:23.631: E/AndroidRuntime(5523):  at dalvik.system.NativeStart.main(Native Method) 
    06-07 14:16:23.631: E/AndroidRuntime(5523): Caused by: java.lang.NullPointerException 
    06-07 14:16:23.631: E/AndroidRuntime(5523):  at rs.androidaplikacije.toplo_hladno.Cigle.onActivityResult(Cigle.) 
    06-07 14:16:23.631: E/AndroidRuntime(5523):  at android.app.Activity.dispatchActivityResult(Activity.) 
    06-07 14:16:23.631: E/AndroidRuntime(5523):  at android.app.ActivityThread.deliverResults(ActivityThread.) 
    06-07 14:16:23.631: E/AndroidRuntime(5523):  ... 11 more 

Answer 1

귀하의 Pitanja_cigle의 클래스에 대한 방송 수신기를 등록하십시오.

private BroadcastReceiver broadcastReceiver = new BroadcastReceiver() { 
    @Override 
    public void onReceive(Context context, Intent intent) { 
     String action= intent.getStringExtra("action"); 
     if(action.equals("close")) { 
      Pitanja_cigle.this.finish(); 
     } 
    } 
}; 

@Override 
public void onCreate(Bundle savedInstanceState) { 
    LocalBroadcastManager.getInstance(this).registerReceiver(broadcastReceiver, new IntentFilter("Pitanja_cigle")); 
} 

당신이 그것을 종료 할 때마다

이

public static void closePitanja(Context context) { 
    Intent intent = new Intent("Pitanja_cigle"); 
    intent.putExtra("action", "close"); 
    LocalBroadcastManager.getInstance(context).sendBroadcast(intent); 
} 

Answer 2

내 제안에 finish()를 호출하는 것입니다 여기에

내 Popup_opis.class입니다 Pitanja_cigle OK 단추를 누를 때와 동시에 활동.

OK.setOnClickListener(new OnClickListener() { 

     public void onClick(View v) { 
      Pitanja_cigle.this.finish(); 
      finish(); 
     } 
    });