カウントダウンタイマーの方法をキャンセルして作業を中止する方法

Question

私はユーザーが再生時間を設定した音楽のリストを持っています。私はmカウントダウンタイマーをキャンセルするボタンを持っています。 私は何らかの方法でテストしますが、全く動作しません。 ここで私のコードを再生し、再生する時間を設定します。

パブリッククラス主な活動{

public static int hour_device, minute_device; 
public static int hour_user, minute_user; 
Splash splash; 
ListView listView; 
Adaptor adaptor; 
private MediaPlayer mediaPlayer; 
static View lastview = null; 
static MyIndexStore indexStore; 

List<String> lines1 = new ArrayList<String>(); 
List<String> lines2 = new ArrayList<String>(); 
static List<String> array_audio = new ArrayList<String>(); 

InputStream in; 
BufferedReader reader; 
String line = "1"; 
String[] tracks; 
String[] names; 
String[] infos; 
@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    indexStore = new MyIndexStore(getApplicationContext()); 
    setContentView(R.layout.main_activity); 


    splash = new Splash(this); 
    splash.set_identity("1"); 


    initiate(); 
    mediaPlayer = MediaPlayer.create(getApplicationContext(), R.raw.a1); 
    //lastview = null; 
    listView = (ListView) findViewById(R.id.list); 
    ReadText1(); 
    names = lines1.toArray(new String[0]);// = {"track one","the seconnd track","a nice track","name name name","the seconnd track","a nice track","name name name"}; 
    ReadText2(); 
    infos = lines2.toArray(new String[0]); 
    tracks = array_audio.toArray(new String[0]); 
    adaptor = new Adaptor(getApplicationContext(), tracks, names, infos); 
    listView.setAdapter(adaptor); 
    mediaPlayer.setOnCompletionListener(new OnCompletionListener() { 

     @Override 
     public void onCompletion(MediaPlayer arg0) { 
      if (lastview != null) { 
       ImageView play = (ImageView) lastview.findViewById(R.id.play_stop); 
       play.setImageResource(R.drawable.n_btn_play_unselected); 
      } 
     } 
    }); 
} 

private static void initiate() { 
    Field[] fields = R.raw.class.getFields(); 
    array_audio.clear(); 
    for (int count = 0; count < fields.length; count++) { 
     array_audio.add("a" + (count + 1)); 
    } 
} 

private void play(int index) { 
    mediaPlayer.release(); 
    index++; 
    String s = "a" + index; 
    Resources resources = getResources(); 
    final int resourceId = resources.getIdentifier(s, "raw", getPackageName()); 

    try { 
     mediaPlayer = MediaPlayer.create(this, resourceId); 
     mediaPlayer.start(); 
    } catch (Exception e) { 
     e.printStackTrace(); 
    } 

} 

@Override 
protected void onPause() { 
    mediaPlayer.release(); 
    listView.invalidateViews(); 
    super.onPause(); 
} 


private void ReadText1() { 
    lines1.clear(); 
    line = "1"; 
    try { 
     in = this.getAssets().open("names.txt"); 
     reader = new BufferedReader(new InputStreamReader(in)); 
     while (line != null) { 
      line = reader.readLine(); 
      if (line != null) 
       lines1.add(line); 
      else 
       break; 
     } 

    } catch (IOException e) { 
     e.printStackTrace(); 
    } 
} 

private void ReadText2() { 
    lines2.clear(); 
    line = "1"; 
    try { 
     in = this.getAssets().open("infos.txt"); 
     reader = new BufferedReader(new InputStreamReader(in)); 
     while (line != null) { 
      line = reader.readLine(); 
      if (line != null) 
       lines2.add(line); 
      else 
       break; 
     } 

    } catch (IOException e) { 
     e.printStackTrace(); 
    } 
} 


public class Adaptor extends ArrayAdapter<String> { 

    private final Context context; 
    private final String[] tracks; 
    private final String[] names; 
    private final String[] infos; 
    private HashMap<Integer,String> textMap; 
    Typeface type_face; 


    public Adaptor(Context context, String[] tracks, String[] names, String[] infos) { 
     super(context, R.layout.track, tracks); 
     this.context = context; 
     this.tracks = tracks; 
     this.names = names; 
     this.infos = infos; 
     type_face = Typeface.createFromAsset(context.getAssets(), "BTitrBd.ttf"); 
     this.textMap = new HashMap<>(); 
    } 

    @Override 
    public View getView(final int position, View convertView, ViewGroup parent) { 
     LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
     final View rowView = inflater.inflate(R.layout.track, parent, false); 

     TextView name = (TextView) rowView.findViewById(R.id.track_name); 
     final TextView time = (TextView) rowView.findViewById(R.id.time); 
     //populate the textview from map 
     if(textMap!=null && textMap.get(new Integer(position))!=null){ 
      time.setText(textMap.get(new Integer(position))); 
     } 
     name.setText(names[position]); 
     name.setTypeface(type_face); 
     name.setTypeface(type_face); 
     final ImageView ringtone = (ImageView) rowView.findViewById(R.id.ringtone); 
     if (position == indexStore.getindex()) 
      ringtone.setImageResource(R.drawable.n_btn_ringtone_seted); 
     final ImageView play = (ImageView) rowView.findViewById(R.id.play_stop); 
     ringtone.setOnClickListener(new OnClickListener() { 

      @Override 
      public void onClick(View arg0) { 

       LayoutInflater factory = LayoutInflater.from(Main.this); 
       final View deleteDialogView = factory.inflate(
         R.layout.mylayout, null); 
       final AlertDialog deleteDialog = new AlertDialog.Builder(Main.this).create(); 
       deleteDialog.setView(deleteDialogView); 

       TextView device_time = (TextView) deleteDialogView.findViewById(R.id.current_time); 
       Calendar c = Calendar.getInstance(); 
       int hour = c.get(Calendar.HOUR_OF_DAY); 
       int minute = c.get(Calendar.MINUTE); 
       hour_device = hour; 
       minute_device = minute; 
       device_time.setText(hour_device + ":" + minute_device); 

       deleteDialogView.findViewById(R.id.set).setOnClickListener(new OnClickListener() { 

        @Override 
        public void onClick(View v) { 

         TimePicker timePicker = (TimePicker) deleteDialogView.findViewById(R.id.timepicker); 
         timePicker.setIs24HourView(true); 
         hour_user = timePicker.getCurrentHour(); 
         minute_user = timePicker.getCurrentMinute(); 
         String time1 = hour_device + ":" + minute_device; 
         String time2 = hour_user + ":" + minute_user; 
         SimpleDateFormat format = new SimpleDateFormat("HH:mm"); 
         Date date1 = null; 
         try { 
          date1 = format.parse(time1); 
         } catch (ParseException e) { 
          e.printStackTrace(); 
         } 
         Date date2 = null; 
         try { 
          date2 = format.parse(time2); 
         } catch (ParseException e) { 
          e.printStackTrace(); 
         } 
         long result = date2.getTime() - date1.getTime(); 


         new CountDownTimer(result, 1000) { 

          public void onTick(long millisUntilFinished) { 
           time.setText(("seconds remaining: " + millisUntilFinished/1000)); 
           //create HashMap<Integer,String> textMap at the constructer of the adapter 
           //now fill this info int'o it 
           textMap.put(new Integer(position), "seconds remaining: " + millisUntilFinished/1000); 
           //notify about the data change 
           notifyDataSetChanged(); 

          } 

          public void onFinish() { 
           time.setVisibility(View.INVISIBLE); 
           //create HashMap<Integer,String> textMap at the constructer of the adapter 
           //now fill this info into it 
           textMap.put(new Integer(position),null); 
           //notify about the data change 
           notifyDataSetChanged(); 
           Toast.makeText(getApplicationContext(), "finish", Toast.LENGTH_LONG).show(); 
           if (rowView != lastview || mediaPlayer == null) { 
            play(position); 
            if (lastview != null) 
             lastview = rowView; 
           } else { 
            play.setImageResource(R.drawable.n_btn_play_unselected); 
            mediaPlayer.release(); 
            lastview = null; 
           } 


          } 

         }.start(); 
         deleteDialog.dismiss(); 
        } 
       }); 


       deleteDialog.show(); 


      } 
     }); 

     play.setOnClickListener(new OnClickListener() { 

      @Override 
      public void onClick(View arg0) { 
       if (rowView != lastview || mediaPlayer == null) { 
        play(position); 
        if (lastview != null) 
         lastview = rowView; 
       } else { 
        play.setImageResource(R.drawable.n_btn_play_unselected); 
        mediaPlayer.release(); 

        lastview = null; 
       } 
      } 
     }); 
     return rowView; 
    } 





} 

}

Answer 1

ダウンインスタンス変数、タイマーのカウントを行うに延び、

private CountDownTimer timer; 

、この変数にあなたの数を委任：あなたがしたいとき

@Override 
public void onClick(View v) { 
    ... 
    timer = new CountDownTimer(result, 1000) { 
     ... 
    } 
} 

今、あなたはタイマーを停止することができます

timer.cancel(); 

Answer 2

は成功し
コールクラスを働いて、このコードをチェックしてくださいここから

 timer = new CounterClass(timeInmilles, 1000); 
        timer.start(); 

CounterClassはライン

timer.cancel() 

望ましい行動を含める必要がありますデバッグの助けを（「なぜこのコードは動作していない？」）を探している