Question

我遇到了AsyncTask的问题，当我使用这个功能时，90％的它崩溃了，我不知道为什么。我能做些什么呢？ obs：忽略返回类型




protected Boolean doInBackground(ArrayList<cldetailday>... params){
boolean HaveOpenHour = false;
ArrayList<String> lstHours = new ArrayList<String>();
ArrayList<cldetailday> lstdetail = new ArrayList<cldetailday>();
Time _time = new Time();
_time.hour = 0;
_time.minute = 0;
try {
        lstdetail = params[0];  
         if(lstdetail != null & lstdetail.size() > 0){
             for(int i = 0; i < lstdetail.size(); i++){
                 lstHours.add(lstdetail.get(i).getHora());
                 if(((i+1)%2 == 0)){                             
                     // Fechei um lancamento
                     HaveOpenHour = true;
                     _time.hour += UtilsDate.Instance().TimeDiff(lstHours.get(i-1),lstHours.get(i)).getHour();
                     _time.minute += UtilsDate.Instance().TimeDiff(lstHours.get(i-1),lstHours.get(i)).getMinute();
                 }
                 else{
                     HaveOpenHour = false;
                 }
             }
         }
         // Temos horas em aberto, inserimos a hora atual para fechar esse lancamento
         if(!HaveOpenHour){
             // temos alguem na lista para processar horas
             if(lstHours != null && lstHours.size() > 0){
                  clHour hour = UtilsDate.Instance().getCurrentHour();

                 _time.hour += UtilsDate.Instance().TimeDiff(lstHours.get(lstHours.size() - 1), hour.getStringHour()).getHour();
                 _time.minute += UtilsDate.Instance().TimeDiff(lstHours.get(lstHours.size() - 1), hour.getStringHour()).getMinute();
                 _time.normalize(true);

             }
         }          
    return true;        
} catch (Exception e) {
    // TODO: handle exception
    Log.e("Error doBackground: ", e.getMessage());
    return false;
}


protected Boolean doInBackground(ArrayList<cldetailday>... params){
boolean HaveOpenHour = false;
ArrayList<String> lstHours = new ArrayList<String>();
ArrayList<cldetailday> lstdetail = new ArrayList<cldetailday>();
Time _time = new Time();
_time.hour = 0;
_time.minute = 0;
try {
        lstdetail = params[0];  
         if(lstdetail != null & lstdetail.size() > 0){
             for(int i = 0; i < lstdetail.size(); i++){
                 lstHours.add(lstdetail.get(i).getHora());
                 if(((i+1)%2 == 0)){                             
                     // Fechei um lancamento
                     HaveOpenHour = true;
                     _time.hour += UtilsDate.Instance().TimeDiff(lstHours.get(i-1),lstHours.get(i)).getHour();
                     _time.minute += UtilsDate.Instance().TimeDiff(lstHours.get(i-1),lstHours.get(i)).getMinute();
                 }
                 else{
                     HaveOpenHour = false;
                 }
             }
         }
         // Temos horas em aberto, inserimos a hora atual para fechar esse lancamento
         if(!HaveOpenHour){
             // temos alguem na lista para processar horas
             if(lstHours != null && lstHours.size() > 0){
                  clHour hour = UtilsDate.Instance().getCurrentHour();

                 _time.hour += UtilsDate.Instance().TimeDiff(lstHours.get(lstHours.size() - 1), hour.getStringHour()).getHour();
                 _time.minute += UtilsDate.Instance().TimeDiff(lstHours.get(lstHours.size() - 1), hour.getStringHour()).getMinute();
                 _time.normalize(true);

             }
         }          
    return true;        
} catch (Exception e) {
    // TODO: handle exception
    Log.e("Error doBackground: ", e.getMessage());
    return false;
}

错误：

Answer 1

   Log.e("Error doBackground: ", e.getMessage());

更改为

Log.wtf("Your asyntask TAG","Error doBackground: ",e);

可能发生这种情况的原因是e.getMessage（）不返回任何消息，而在Log.wtf方法中，您可以在方法中传递异常实例（可以为null）。

Answer 2

它在行中失败

Log.e("Error doBackground: ", e.getMessage());

不是吗？

您的异常e对象没有消息，并在null上返回e.getMessage()。

AsyncTask崩溃我的应用程序

2 个答案: