내 주 AsyncTask 중 하나가 가끔 충돌하는 것 같습니다 (진행률 표시 줄이 멈추고 프로세스가 멈 춥니 다). 내 코드에서 뭔가 잘못되어 있는지 궁금해했습니다.AsyncTask가 때때로 충돌합니다
내 갤럭시 S2가 배터리 부족으로 작동하기 시작한 것처럼 보일 수 있습니다. 밝기 조절에 관한 일부 오류와 일치하는 것으로 보입니다. 이것이 오류의 원인인지 또는 오류의 결과인지 여부는 내가 결정할 수 없었던 것입니다. 또한 배터리가 항상 부족한 것처럼 보이기 때문에 이와 관련되지 않을 수도 있습니다!
내가이 AsyncTask에서 잘못하고있는 것이 있습니까? 실제로 처리기로 실제 컴퓨터를 실행하기 전에 AsyncTask를 사용하여 3 개의 진행 막대 (컴퓨터 플레이어) 중 하나를 표시합니다.
이 또한 Android 마켓에서보고 된 적이 없습니다. InterruptedException으로 인해 발생하는 경우 스택 추적을 인쇄하여 최종 사용자가 발생할 때 사용자 오류가 발생해야합니까?
//Declaration at top level of activity
private ComputerPlayerTask mComputerPlayerTask = new ComputerPlayerTask();
// Execution of the task with a random integer value
mComputerPlayerTask = new ComputerPlayerTask();
mComputerPlayerTask.execute(randomInt);
private class ComputerPlayerTask extends
AsyncTask<Integer, Integer, Boolean> {
private ProgressBar mProgressBar;
@Override
protected Boolean doInBackground(Integer... params) {
int delayTime = params[0];
mProgressBar.setMax(delayTime - 1);
for (int i = 0; i < delayTime; i++) {
try {
Thread.sleep(500);
} catch (InterruptedException e) {
Log.e(DEBUG_TAG, "Can't sleep thread");
}
if (mPause) {
i--;
} else {
publishProgress(1);
}
}
return true;
}
@Override
protected void onPostExecute(Boolean result) {
mProgressBar.setVisibility(View.INVISIBLE);
mMainHandler.sendEmptyMessage(WHAT_COMPUTER_TURN);
super.onPostExecute(result);
}
@Override
protected void onPreExecute() {
mProgressBar = (ProgressBar) findViewById(playerProgressBarMap
.get(Player.getCurrentPlayer()));
mProgressBar.setProgress(0);
if (!mSpeedUp) {
mProgressBar.setVisibility(View.VISIBLE);
}
}
@Override
protected void onCancelled() {
Log.i(DEBUG_TAG, "onCancelled");
mProgressBar.setVisibility(View.INVISIBLE);
}
@Override
protected void onProgressUpdate(Integer... values) {
mProgressBar.incrementProgressBy(values[0]);
}
}
마침내이 문제에 대한 보고서를 얻었습니다. AsyncTasks가 모두 기다리고있는 것을 볼 수 있습니다. 다니엘과 비토가 진술 한 바와 같이 진도 막대기의 내구를 놓아서 이것이 원인 일 수 있었거나 다른 무언가가 틀린가?
DALVIK THREADS:
(mutexes: tll=0 tsl=0 tscl=0 ghl=0 hwl=0 hwll=0)
"main" prio=5 tid=1 NATIVE
| group="main" sCount=1 dsCount=0 obj=0x400281b8 self=0xcec0
| sysTid=19207 nice=0 sched=0/0 cgrp=default handle=-1345006496
| schedstat=(108745487102 22285195732 39534)
at android.media.SoundPool.play(Native Method)
at com.bazsoft.yaniv.SoundManager.playSound(SoundManager.java:83)
at com.bazsoft.yaniv.YanivGameActivity.displayPileCards(YanivGameActivity.java:551)
at com.bazsoft.yaniv.YanivGameActivity.displayCards(YanivGameActivity.java:506)
at com.bazsoft.yaniv.YanivGameActivity.access$6(YanivGameActivity.java:500)
at com.bazsoft.yaniv.YanivGameActivity$ComputerHandler.handleMessage(YanivGameActivity.java:111)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:123)
at android.app.ActivityThread.main(ActivityThread.java:3691)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:507)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:847)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:605)
at dalvik.system.NativeStart.main(Native Method)
"AsyncTask #5" prio=5 tid=14 WAIT
| group="main" sCount=1 dsCount=0 obj=0x40573f38 self=0x27bca0
| sysTid=19282 nice=10 sched=0/0 cgrp=bg_non_interactive handle=2118216
| schedstat=(101862790 1754080269 477)
at java.lang.Object.wait(Native Method)
- waiting on <0x4052b1a8> (a java.lang.VMThread)
at java.lang.Thread.parkFor(Thread.java:1424)
at java.lang.LangAccessImpl.parkFor(LangAccessImpl.java:48)
at sun.misc.Unsafe.park(Unsafe.java:337)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:157)
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2016)
at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:411)
at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1021)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1081)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:581)
at java.lang.Thread.run(Thread.java:1019)
"AsyncTask #4" prio=5 tid=13 WAIT
| group="main" sCount=1 dsCount=0 obj=0x40584508 self=0x27b8c0
| sysTid=19278 nice=10 sched=0/0 cgrp=bg_non_interactive handle=2712376
| schedstat=(45122127 1293929987 198)
at java.lang.Object.wait(Native Method)
- waiting on <0x40584668> (a java.lang.VMThread)
at java.lang.Thread.parkFor(Thread.java:1424)
at java.lang.LangAccessImpl.parkFor(LangAccessImpl.java:48)
at sun.misc.Unsafe.park(Unsafe.java:337)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:157)
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2016)
at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:411)
at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1021)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1081)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:581)
at java.lang.Thread.run(Thread.java:1019)
"AsyncTask #3" prio=5 tid=12 WAIT
| group="main" sCount=1 dsCount=0 obj=0x4056ffb8 self=0x27b378
| sysTid=19271 nice=10 sched=0/0 cgrp=bg_non_interactive handle=1318248
| schedstat=(50782335 1392327423 217)
at java.lang.Object.wait(Native Method)
- waiting on <0x405700e8> (a java.lang.VMThread)
at java.lang.Thread.parkFor(Thread.java:1424)
at java.lang.LangAccessImpl.parkFor(LangAccessImpl.java:48)
at sun.misc.Unsafe.park(Unsafe.java:337)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:157)
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2016)
at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:411)
at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1021)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1081)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:581)
at java.lang.Thread.run(Thread.java:1019)
"AsyncTask #2" prio=5 tid=11 WAIT
| group="main" sCount=1 dsCount=0 obj=0x4057aa50 self=0x2b08b8
| sysTid=19266 nice=10 sched=0/0 cgrp=bg_non_interactive handle=2107320
| schedstat=(47150870 1245297244 204)
at java.lang.Object.wait(Native Method)
- waiting on <0x4057ab80> (a java.lang.VMThread)
at java.lang.Thread.parkFor(Thread.java:1424)
at java.lang.LangAccessImpl.parkFor(LangAccessImpl.java:48)
at sun.misc.Unsafe.park(Unsafe.java:337)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:157)
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2016)
at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:411)
at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1021)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1081)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:581)
at java.lang.Thread.run(Thread.java:1019)
"AsyncTask #1" prio=5 tid=10 WAIT
| group="main" sCount=1 dsCount=0 obj=0x4057e3e0 self=0x225e60
| sysTid=19260 nice=10 sched=0/0 cgrp=bg_non_interactive handle=2252696
| schedstat=(47511668 1323908745 205)
at java.lang.Object.wait(Native Method)
- waiting on <0x4057e5b8> (a java.lang.VMThread)
at java.lang.Thread.parkFor(Thread.java:1424)
at java.lang.LangAccessImpl.parkFor(LangAccessImpl.java:48)
at sun.misc.Unsafe.park(Unsafe.java:337)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:157)
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2016)
at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:411)
at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1021)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1081)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:581)
at java.lang.Thread.run(Thread.java:1019)
"SoundPoolThread" prio=5 tid=9 NATIVE
| group="main" sCount=1 dsCount=0 obj=0x40513680 self=0x188e38
| sysTid=19234 nice=0 sched=0/0 cgrp=default handle=1798920
| schedstat=(4164749 2002043 34)
at dalvik.system.NativeStart.run(Native Method)
"SoundPool" prio=5 tid=8 NATIVE
| group="main" sCount=1 dsCount=0 obj=0x40518668 self=0x188d00
| sysTid=19233 nice=0 sched=0/0 cgrp=default handle=1799064
| schedstat=(154125 0 1)
at dalvik.system.NativeStart.run(Native Method)
"Binder Thread #2" prio=5 tid=7 NATIVE
| group="main" sCount=1 dsCount=0 obj=0x4051e608 self=0x8ad90
| sysTid=19213 nice=0 sched=0/0 cgrp=default handle=1104984
| schedstat=(7442210 75731553 65)
at dalvik.system.NativeStart.run(Native Method)
"Binder Thread #1" prio=5 tid=6 NATIVE
| group="main" sCount=1 dsCount=0 obj=0x4051ca20 self=0x10cf90
| sysTid=19212 nice=0 sched=0/0 cgrp=default handle=1098888
| schedstat=(8834252 62834840 68)
at dalvik.system.NativeStart.run(Native Method)
"Compiler" daemon prio=5 tid=5 VMWAIT
| group="system" sCount=1 dsCount=0 obj=0x405189a0 self=0x10c978
| sysTid=19211 nice=0 sched=0/0 cgrp=default handle=1105168
| schedstat=(826648662 443778935 3811)
at dalvik.system.NativeStart.run(Native Method)
"Signal Catcher" daemon prio=5 tid=4 RUNNABLE
| group="system" sCount=0 dsCount=0 obj=0x405188e0 self=0x10c810
| sysTid=19210 nice=0 sched=0/0 cgrp=default handle=1093320
| schedstat=(2793168 631667 8)
at dalvik.system.NativeStart.run(Native Method)
"GC" daemon prio=5 tid=3 VMWAIT
| group="system" sCount=1 dsCount=0 obj=0x40518838 self=0x10c6a0
| sysTid=19209 nice=0 sched=0/0 cgrp=default handle=1097888
| schedstat=(40991755 61721634 20)
at dalvik.system.NativeStart.run(Native Method)
"HeapWorker" daemon prio=5 tid=2 VMWAIT
| group="system" sCount=1 dsCount=0 obj=0x40518780 self=0x10c538
| sysTid=19208 nice=0 sched=0/0 cgrp=default handle=1098528
| schedstat=(624790039 112243012 376)
at dalvik.system.NativeStart.run(Native Method)
감사합니다. Daniel. 백그라운드 스레드에서 UI를 업데이트 할 수 없다는 것을 알았지 만 오류를 발생시키지 않았고 나쁜 점을 보이지 않았기 때문에 진행 막대의 길이를 업데이트하면 이런 식으로 영향을 미칠 수 있다고 생각조차하지 않았습니다. –
다른 스레드에서 UI를 업데이트한다고해서 항상 예외가 발생하는 것은 아닙니다 (Android에서는 예외를 거의 발생시키지 않지만, 예를 들어 .NET에서는 즉시 런타임 예외가 발생합니다). 스레드는 UI 구성 요소에 액세스하면 멈추거나 멈출 수 있습니다. –
질문에 대한 답변이 나옵니까? 답변으로 표시 할 수 있습니까? 고맙습니다 :-). –