列表視圖中的多個倒計時器

Question

我正在嘗試使多個倒計時器在主要活動上打勾。定時器將有一個對象字符串，如列表視圖中所示。問題是計時器沒有滴答下來，它保持靜態。

這是我的主要活動

final ListView list = (ListView) findViewById(R.id.listView2); 
     final ArrayAdapter ListAdapter = new ArrayAdapter<>(this,android.R.layout.simple_list_item_1,BountyList); 
     list.setAdapter(ListAdapter); 
     Runnable r = new Runnable() { 
      @Override 
      public void run() { 
       BountyList.get(0).getTime().start(); 
       ListAdapter.notifyDataSetChanged(); 
      } 
     }; 

r.run(); 

這裏是處理我的字符串，並保持我的定時器對象的對象類的部分。

public class Bounty { 
String BountyName; 
String URL; 
String timelapse; 
int BountyAmount; 
long exHour, exMin, exSec; 
CountDownTimer time; 
//ArrayAdapter a; 

public Bounty(String name, String url,int Amount,long hour, long min, long sec){//maybe add Adapter as local to handle it here? 
    BountyName = name; 
    BountyAmount = Amount; 
    exHour = hour *60*60*1000; 
    exMin = min *60* 1000; 
    exSec = sec *1000; 
    URL = url; 
    final long test = (exHour+exMin+exSec) ; 
    //a = adapter; 
    //adapter.notifyDataSetChanged(); 
    time = new CountDownTimer(test,1000) { 
     @Override 
     public void onTick(long millisUntilFinished) { 
      //long test2 = -1; 
      //if(test2 == -1){ 
      // test2 = test; 
      //} 
      //test2 = test2 - 1000; 
      timelapse = toHourFormat(millisUntilFinished); 
     } 

     @Override 
     public void onFinish() { 

     } 
    }.start();// not ticking so wont show toString 
} 
public String toString(){ 
    if(timelapse==null){ 
     timelapse = "Issue Here"; 
    } 
    return BountyName+" | "+ BountyAmount+" | " + timelapse; 
} 
public String toHourFormat(long milli){ 
    int second = (int) (milli/1000) % 60 ; 
    int minutes = (int) ((milli/(1000*60)) % 60); 
    int hours = (int) ((milli/(1000*60*60)) % 24); 
    return hours+":"+minutes+":"+second; 
} 
public CountDownTimer getTime(){ 
    return time; 
} 

Answer 1

倒計時器必須在活動類中執行才能運行。這可以通過擴展，像這樣一類來完成，

public class timeractivity extends Activity{ 
     //run timer here 
    } 

Answer 2

難道下面的runnable（在你給定的代碼中）沒有執行嗎？

Runnable r = new Runnable() { 
    @Override 
    public void run() { 
     BountyList.get(0).getTime().start(); 
     ListAdapter.notifyDataSetChanged(); 
    } 
};