해서 ProgressDialog 내가이해서 ProgressDialog가 제대로 작동하도록하기 위해 많은 것들을 시도

Question

긴 계산이 제대로 작동하지 않습니다,하지만 난 여전히 100 %를 못 했어. 나는 근본적으로 최종 목표에 가깝게 똑같이 두 개의 분리 된 막 다른 골목에 왔습니다.

첫째, 여분의 Thread를 생성하고 runOnUiThread를 사용했습니다. 이것은 내가 그것을 할 적절한 시간에 대화 showing 및 dismissing 결과지만, 스피너는 회전하지 않습니다. 고정되어 있으며 결코 조정되지 않습니다.

readButton = (Button) findViewById(R.id.readButton); 
    readButton.setOnClickListener(new OnClickListener() { 
     public void onClick(View arg0) { 


      final ProgressDialog pd = new ProgressDialog(Waves.this); 
      pd.setProgressStyle(ProgressDialog.STYLE_SPINNER); 
      pd.setMessage("Reading..."); 
      pd.setCancelable(false);    
      pd.show(); 

      Thread export = new Thread() { 
       public void run() { 
         if(myService.getState() != 3) { 
          runOnUiThread(new Runnable() { 
           public void run() { 
            Log.i("myService", "12222"); 
            myService.setHandler(mHandler); 
            myService.connect(MainMenu.previousDevice, true); 
           } 
          }); 
         } else { 
          runOnUiThread(new Runnable() { 
           public void run() { 
            readWaves(); 
           } 
          }); 
         } 
       mHandler.obtainMessage(MainMenu.READ_FINISHED).sendToTarget(); 
       pd.dismiss(); 
       } 
      }; 
      export.start(); 
      } 
    }); 

내가하고 시도 다음 일은

는 AsyncTask를 사용합니다. 내가 인터넷에서 찾은 것에서부터 이것은 갈 길과 같습니다. 회 전자가 회전을 시작하고 코드가 작동하기 시작하지만 짧은 시간이 지나면 응용 프로그램이 현재 활동을 떠나 완전히 다시 시작됩니다. 아래에 LogCat이 나와 있지만 오류는 표시되지 않습니다.

readButton = (Button) findViewById(R.id.readButton); 
    readButton.setOnClickListener(new OnClickListener() { 
     public void onClick(View arg0) { 
      new readPage().execute(null, null, null); 
      } 
    }); 


public class readPage extends AsyncTask<Void, Void, Void> { 

     private ProgressDialog pdia; 

     @Override 
     protected void onPreExecute(){ 
      super.onPreExecute(); 
       pdia = new ProgressDialog(Waves.this); 
       pdia.setMessage("Reading..."); 
       pdia.setCancelable(false); 
       pdia.show(); 
      } 

     @Override 
     protected void onPostExecute(Void unused) { 
      pdia.dismiss(); 
     } 
     @Override 
     protected Void doInBackground(Void... arg0) { 
      // TODO Auto-generated method stub 
      Log.i("ASYNC", "2"); 
      if(myService.getState() != 3) { 
       myService.setHandler(mHandler); 
       myService.connect(MainMenu.previousDevice, true); 
      } else { 
       readWaves(); 
      } 
      return null; 
     } 
} 

여기는 LogCat입니다. 표시된 첫 번째 줄은 내 코드의 일부인 LogCat의 마지막 것입니다. 이 코드는 항상 작동하기 때문에이 줄에서 어떤 일이 발생하는지 확인하지 않았습니다.이 코드는 AsyncTask으로 구현되지 않았습니다. 마지막 줄에는 응용 프로그램이 다시 시작될 때 Main Menu ++ ON CREATE ++ 항목이 있습니다.

01-07 18:23:27.738: W/NATIVE CODE(28111): After SetBaud 
01-07 18:23:29.777: I/dalvikvm(28111): threadid=4: reacting to signal 3 
01-07 18:23:30.781: W/dalvikvm(28111): threadid=4: spin on suspend #1 threadid=9 (pcf=0) 
01-07 18:23:30.781: D/dalvikvm(28111): Temporarily moving tid 28128 to fg (was 0) 
01-07 18:23:30.781: D/dalvikvm(28111): Temporarily raised priority on tid 28128 (10 -> 0) 
01-07 18:23:31.527: W/dalvikvm(28111): threadid=4: spin on suspend #2 threadid=9 (pcf=3) 
01-07 18:23:31.531: I/dalvikvm(28111): "Signal Catcher" daemon prio=5 tid=4 RUNNABLE 
01-07 18:23:31.531: I/dalvikvm(28111): | group="system" sCount=0 dsCount=0 obj=0x4050f730 self=0x117d60 
01-07 18:23:31.531: I/dalvikvm(28111): | sysTid=28114 nice=0 sched=0/0 cgrp=default handle=582800 
01-07 18:23:31.531: I/dalvikvm(28111): at dalvik.system.NativeStart.run(Native Method) 
01-07 18:23:31.531: I/dalvikvm(28111): "AsyncTask #1" prio=5 tid=9 RUNNABLE 
01-07 18:23:31.531: I/dalvikvm(28111): | group="main" sCount=1 dsCount=0 obj=0x40559388 self=0x2e1a10 
01-07 18:23:31.531: I/dalvikvm(28111): | sysTid=28128 nice=0 sched=0/0 cgrp=default handle=3243272 
01-07 18:23:31.925: I/dalvikvm(28111): at my.eti.commander.RelayAPIModel$NativeCalls.GetWavesJava(Native Method) 
01-07 18:23:31.933: I/dalvikvm(28111): at my.eti.commander.Waves.readWaves(Waves.java:365) 
01-07 18:23:31.937: I/dalvikvm(28111): at my.eti.commander.Waves.access$0(Waves.java:350) 
01-07 18:23:31.941: I/dalvikvm(28111): at my.eti.commander.Waves$readPage.doInBackground(Waves.java:323) 
01-07 18:23:31.945: I/dalvikvm(28111): at my.eti.commander.Waves$readPage.doInBackground(Waves.java:1) 
01-07 18:23:31.949: I/dalvikvm(28111): at android.os.AsyncTask$2.call(AsyncTask.java:185) 
01-07 18:23:31.957: I/dalvikvm(28111): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:306) 
01-07 18:23:31.960: I/dalvikvm(28111): at java.util.concurrent.FutureTask.run(FutureTask.java:138) 
01-07 18:23:31.964: I/dalvikvm(28111): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1088) 
01-07 18:23:31.968: I/dalvikvm(28111): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:581) 
01-07 18:23:31.972: I/dalvikvm(28111): at java.lang.Thread.run(Thread.java:1019) 
01-07 18:23:32.734: W/dalvikvm(28111): threadid=4: spin on suspend #3 threadid=9 (pcf=3) 
01-07 18:23:32.734: I/dalvikvm(28111): "Signal Catcher" daemon prio=5 tid=4 RUNNABLE 
01-07 18:23:32.734: I/dalvikvm(28111): | group="system" sCount=0 dsCount=0 obj=0x4050f730 self=0x117d60 
01-07 18:23:32.734: I/dalvikvm(28111): | sysTid=28114 nice=0 sched=0/0 cgrp=default handle=582800 
01-07 18:23:32.734: I/dalvikvm(28111): at dalvik.system.NativeStart.run(Native Method) 
01-07 18:23:32.734: I/dalvikvm(28111): "AsyncTask #1" prio=5 tid=9 RUNNABLE 
01-07 18:23:32.734: I/dalvikvm(28111): | group="main" sCount=1 dsCount=0 obj=0x40559388 self=0x2e1a10 
01-07 18:23:32.734: I/dalvikvm(28111): | sysTid=28128 nice=0 sched=0/0 cgrp=default handle=3243272 
01-07 18:23:32.859: I/dalvikvm(28111): at my.eti.commander.RelayAPIModel$NativeCalls.GetWavesJava(Native Method) 
01-07 18:23:32.859: I/dalvikvm(28111): at my.eti.commander.Waves.readWaves(Waves.java:365) 
01-07 18:23:32.859: I/dalvikvm(28111): at my.eti.commander.Waves.access$0(Waves.java:350) 
01-07 18:23:32.859: I/dalvikvm(28111): at my.eti.commander.Waves$readPage.doInBackground(Waves.java:323) 
01-07 18:23:32.859: I/dalvikvm(28111): at my.eti.commander.Waves$readPage.doInBackground(Waves.java:1) 
01-07 18:23:32.859: I/dalvikvm(28111): at android.os.AsyncTask$2.call(AsyncTask.java:185) 
01-07 18:23:32.859: I/dalvikvm(28111): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:306) 
01-07 18:23:32.859: I/dalvikvm(28111): at java.util.concurrent.FutureTask.run(FutureTask.java:138) 
01-07 18:23:32.859: I/dalvikvm(28111): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1088) 
01-07 18:23:32.859: I/dalvikvm(28111): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:581) 
01-07 18:23:32.863: I/dalvikvm(28111): at java.lang.Thread.run(Thread.java:1019) 
01-07 18:23:33.613: W/dalvikvm(28111): threadid=4: spin on suspend #4 threadid=9 (pcf=3) 
01-07 18:23:33.613: I/dalvikvm(28111): "Signal Catcher" daemon prio=5 tid=4 RUNNABLE 
01-07 18:23:33.613: I/dalvikvm(28111): | group="system" sCount=0 dsCount=0 obj=0x4050f730 self=0x117d60 
01-07 18:23:33.613: I/dalvikvm(28111): | sysTid=28114 nice=0 sched=0/0 cgrp=default handle=582800 
01-07 18:23:33.613: I/dalvikvm(28111): at dalvik.system.NativeStart.run(Native Method) 
01-07 18:23:33.613: I/dalvikvm(28111): "AsyncTask #1" prio=5 tid=9 RUNNABLE 
01-07 18:23:33.617: I/dalvikvm(28111): | group="main" sCount=1 dsCount=0 obj=0x40559388 self=0x2e1a10 
01-07 18:23:33.617: I/dalvikvm(28111): | sysTid=28128 nice=0 sched=0/0 cgrp=default handle=3243272 
01-07 18:23:33.617: I/dalvikvm(28111): at my.eti.commander.RelayAPIModel$NativeCalls.GetWavesJava(Native Method) 
01-07 18:23:33.617: I/dalvikvm(28111): at my.eti.commander.Waves.readWaves(Waves.java:365) 
01-07 18:23:33.617: I/dalvikvm(28111): at my.eti.commander.Waves.access$0(Waves.java:350) 
01-07 18:23:33.617: I/dalvikvm(28111): at my.eti.commander.Waves$readPage.doInBackground(Waves.java:323) 
01-07 18:23:33.617: I/dalvikvm(28111): at my.eti.commander.Waves$readPage.doInBackground(Waves.java:1) 
01-07 18:23:33.617: I/dalvikvm(28111): at android.os.AsyncTask$2.call(AsyncTask.java:185) 
01-07 18:23:33.617: I/dalvikvm(28111): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:306) 
01-07 18:23:33.617: I/dalvikvm(28111): at java.util.concurrent.FutureTask.run(FutureTask.java:138) 
01-07 18:23:33.617: I/dalvikvm(28111): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1088) 
01-07 18:23:33.617: I/dalvikvm(28111): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:581) 
01-07 18:23:33.617: I/dalvikvm(28111): at java.lang.Thread.run(Thread.java:1019) 
01-07 18:23:34.367: W/dalvikvm(28111): threadid=4: spin on suspend #5 threadid=9 (pcf=3) 
01-07 18:23:34.367: I/dalvikvm(28111): "Signal Catcher" daemon prio=5 tid=4 RUNNABLE 
01-07 18:23:34.367: I/dalvikvm(28111): | group="system" sCount=0 dsCount=0 obj=0x4050f730 self=0x117d60 
01-07 18:23:34.367: I/dalvikvm(28111): | sysTid=28114 nice=0 sched=0/0 cgrp=default handle=582800 
01-07 18:23:34.371: I/dalvikvm(28111): at dalvik.system.NativeStart.run(Native Method) 
01-07 18:23:34.371: I/dalvikvm(28111): "AsyncTask #1" prio=5 tid=9 RUNNABLE 
01-07 18:23:34.371: I/dalvikvm(28111): | group="main" sCount=1 dsCount=0 obj=0x40559388 self=0x2e1a10 
01-07 18:23:34.371: I/dalvikvm(28111): | sysTid=28128 nice=0 sched=0/0 cgrp=default handle=3243272 
01-07 18:23:34.371: I/dalvikvm(28111): at my.eti.commander.RelayAPIModel$NativeCalls.GetWavesJava(Native Method) 
01-07 18:23:34.371: I/dalvikvm(28111): at my.eti.commander.Waves.readWaves(Waves.java:365) 
01-07 18:23:34.371: I/dalvikvm(28111): at my.eti.commander.Waves.access$0(Waves.java:350) 
01-07 18:23:34.371: I/dalvikvm(28111): at my.eti.commander.Waves$readPage.doInBackground(Waves.java:323) 
01-07 18:23:34.371: I/dalvikvm(28111): at my.eti.commander.Waves$readPage.doInBackground(Waves.java:1) 
01-07 18:23:34.371: I/dalvikvm(28111): at android.os.AsyncTask$2.call(AsyncTask.java:185) 
01-07 18:23:34.371: I/dalvikvm(28111): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:306) 
01-07 18:23:34.371: I/dalvikvm(28111): at java.util.concurrent.FutureTask.run(FutureTask.java:138) 
01-07 18:23:34.371: I/dalvikvm(28111): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1088) 
01-07 18:23:34.371: I/dalvikvm(28111): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:581) 
01-07 18:23:34.371: I/dalvikvm(28111): at java.lang.Thread.run(Thread.java:1019) 
01-07 18:23:35.253: E/MainMenu(28151): +++ ON CREATE +++ 

편집 :

나는 또한 내가 .hide() 대신 .dismiss()의 사용 시도 추가 할,하지만 난 그게 문제라고 생각하지 않습니다. 사용 될 때마다 ProgressDialog의 새 인스턴스를 만듭니다.

Answer 1

사용 AsyncTask를하여 진행 OnPreExecute()에 대화 상자를 표시 할 수 있습니다 background.You에 긴 계산 과정을 실행합니다. 계산이 끝나면이 비동기 메서드는 onPostExecute() 진행 대화 상자를 취소 할 수 있습니다. 계산 코딩은 doInBackground() 안에 있습니다.

public class LongCaluclation extends AsyncTask<Void, Void, Void> 
{ 
@Override 
protected void onPreExecute() 
{ 
    super.onPreExecute(); 
    dialog.setMessage("Calculation in progress please wait..."); 
    dialog.setCancelable(false); 
    dialog.show(); 

} 
@Override 
protected void onProgressUpdate(Void... values) { 
    super.onProgressUpdate(values); 
    // Things to be done while execution of long running operation is in progress. For example updating ProgessDialog 
} 

@Override 
protected void onPostExecute(Void result) 

{ 
     //Post Execute 
     dialog.cancel(); 
} 
@Override 
protected Void doInBackground(Void... params) { 

    // Your operation..Dont Edit Any Views here 

    return null; 
} 
}