Android ANR을 디버깅하는 방법은 무엇입니까?

Question

내 안드로이드 앱은 최근 Google Play 콘솔에서 많은 ANR 보고서를받습니다. 앱에 Google 애널리틱스를 포함 시켰을 때부터이 문제가 발생하기 시작 했으므로 애널리틱스가 해당 문제를 일으키는 것으로 의심됩니다.

문제점은 스택 추적을 사용하여 크래시를 디버깅하는 방법을 알고 있습니다. 하지만 ANR을 디버깅하는 방법에 대해서는 잘 모르겠습니다. ANR은 주 스레드가 어딘가에서 차단된다는 것을 의미합니다. 그러나 그것이 차단 된 곳을 아는 방법은 무엇입니까? 최근에 얻은 일반적인 ANR 중 하나를 아래에서보십시오. 어떻게 해석하고 응용 프로그램이 멈추는 지 알아내는 방법?

추신 : 스택의 클래스/메소드 중 일부는 DexGuard 코드 obfuscator의 사용으로 인해 이상하게 보입니다.

ANR 신고 :

DALVIK THREADS: 
(mutexes: tll=0 tsl=0 tscl=0 ghl=0 hwl=0 hwll=0) 
"main" prio=5 tid=1 VMWAIT 
| group="main" sCount=1 dsCount=0 obj=0x40022198 self=0xcec8 
| sysTid=5001 nice=0 sched=0/0 cgrp=[fopen-error:2] handle=-1345006496 
| schedstat=(1265991222 1037628169 649) 
at dalvik.system.DexFile.openDexFile(Native Method) 
at dalvik.system.DexFile.<init>(DexFile.java:103) 
at dalvik.system.DexFile.loadDex(DexFile.java:142) 
at java.lang.reflect.Method.invokeNative(Native Method) 
at java.lang.reflect.Method.invoke(Method.java:507) 
at o.Ə$鷭$囃.<clinit>((null):-1) 
at o.Ə$櫯.onServiceConnected(:-1) 
at android.app.LoadedApk$ServiceDispatcher.doConnected(LoadedApk.java:1064) 
at android.app.LoadedApk$ServiceDispatcher$RunConnection.run(LoadedApk.java:1081) 
at android.os.Handler.handleCallback(Handler.java:587) 
at android.os.Handler.dispatchMessage(Handler.java:92) 
at android.os.Looper.loop(Looper.java:130) 
at android.app.ActivityThread.main(ActivityThread.java:3687) 
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:867) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:625) 
at dalvik.system.NativeStart.main(Native Method) 

"Binder Thread #3" prio=5 tid=14 NATIVE 
| group="main" sCount=1 dsCount=0 obj=0x40624cc0 self=0x27eeb0 
| sysTid=5046 nice=0 sched=0/0 cgrp=[fopen-error:2] handle=2499688 
| schedstat=(946046 5981445 3) 
at dalvik.system.NativeStart.run(Native Method) 

"Thread-15" prio=5 tid=13 TIMED_WAIT 
| group="main" sCount=1 dsCount=0 obj=0x405e2a10 self=0x1c99e0 
| sysTid=5020 nice=0 sched=0/0 cgrp=[fopen-error:2] handle=1845856 
| schedstat=(41442864 92254646 93) 
at java.lang.Object.wait(Native Method) 
- waiting on <0x4050ddb0> (a o.㱽) 
at java.lang.Object.wait(Object.java:395) 
at o.㱽.run(:723) 
at java.lang.Thread.run(Thread.java:1019) 

"CookieSyncManager" prio=5 tid=12 NATIVE 
| group="main" sCount=1 dsCount=0 obj=0x40575550 self=0x1ca5a0 
| sysTid=5019 nice=10 sched=0/0 cgrp=[fopen-error:2] handle=1844760 
| schedstat=(793456 13153076 3) 
at android.os.MessageQueue.nativePollOnce(Native Method) 
at android.os.MessageQueue.next(MessageQueue.java:119) 
at android.os.Looper.loop(Looper.java:117) 
at android.webkit.WebSyncManager.run(WebSyncManager.java:90) 
at android.webkit.CookieSyncManager.run(CookieSyncManager.java:61) 
at java.lang.Thread.run(Thread.java:1019) 

"WebViewWorkerThread" prio=5 tid=11 NATIVE 
| group="main" sCount=1 dsCount=0 obj=0x40572d28 self=0x1cec60 
| sysTid=5017 nice=1 sched=0/0 cgrp=[fopen-error:2] handle=1904424 
| schedstat=(21575930 39001463 32) 
at android.os.MessageQueue.nativePollOnce(Native Method) 
at android.os.MessageQueue.next(MessageQueue.java:119) 
at android.os.Looper.loop(Looper.java:117) 
at android.os.HandlerThread.run(HandlerThread.java:60) 

"WebViewCoreThread" prio=5 tid=10 NATIVE 
| group="main" sCount=1 dsCount=0 obj=0x405ded38 self=0x1c9300 
| sysTid=5016 nice=0 sched=0/0 cgrp=[fopen-error:2] handle=1872952 
| schedstat=(205108647 198852533 140) 
at android.os.MessageQueue.nativePollOnce(Native Method) 
at android.os.MessageQueue.next(MessageQueue.java:119) 
at android.os.Looper.loop(Looper.java:117) 
at android.webkit.WebViewCore$WebCoreThread.run(WebViewCore.java:685) 
at java.lang.Thread.run(Thread.java:1019) 

"pool-1-thread-1" prio=5 tid=9 WAIT 
| group="main" sCount=1 dsCount=0 obj=0x4050daa0 self=0x1c05b8 
| sysTid=5015 nice=0 sched=0/0 cgrp=[fopen-error:2] handle=1869904 
| schedstat=(5187987 16571046 6) 
at java.lang.Object.wait(Native Method) 
- waiting on <0x4050dc68> (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) 

"GAThread" prio=5 tid=8 WAIT 
| group="main" sCount=1 dsCount=0 obj=0x405a4518 self=0x1b8e58 
| sysTid=5014 nice=0 sched=0/0 cgrp=[fopen-error:2] handle=1806224 
| schedstat=(288482667 146301269 277) 
at java.lang.Object.wait(Native Method) 
- waiting on <0x405a4798> (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 o.뛖.run(:518) 

"Binder Thread #2" prio=5 tid=7 NATIVE 
| group="main" sCount=1 dsCount=0 obj=0x40516ed0 self=0xe4478 
| sysTid=5007 nice=0 sched=0/0 cgrp=[fopen-error:2] handle=1390912 
| schedstat=(5340576 31036382 32) 
at dalvik.system.NativeStart.run(Native Method) 

"Binder Thread #1" prio=5 tid=6 NATIVE 
| group="main" sCount=1 dsCount=0 obj=0x40515cb0 self=0x1534c8 
| sysTid=5006 nice=0 sched=0/0 cgrp=[fopen-error:2] handle=577280 
| schedstat=(10803221 33203131 35) 
at dalvik.system.NativeStart.run(Native Method) 

"Compiler" daemon prio=5 tid=5 VMWAIT 
| group="system" sCount=1 dsCount=0 obj=0x40511d80 self=0x8cce0 
| sysTid=5005 nice=0 sched=0/0 cgrp=[fopen-error:2] handle=1146040 
| schedstat=(79406736 76446531 396) 
at dalvik.system.NativeStart.run(Native Method) 

"Signal Catcher" daemon prio=5 tid=4 RUNNABLE 
| group="system" sCount=0 dsCount=0 obj=0x40511cc0 self=0x117af8 
| sysTid=5004 nice=0 sched=0/0 cgrp=[fopen-error:2] handle=1145528 
| schedstat=(23651123 21545411 7) 
at dalvik.system.NativeStart.run(Native Method) 

"GC" daemon prio=5 tid=3 VMWAIT 
| group="system" sCount=1 dsCount=0 obj=0x40511c18 self=0x153240 
| sysTid=5003 nice=0 sched=0/0 cgrp=[fopen-error:2] handle=1389056 
| schedstat=(367523192 416046141 132) 
at dalvik.system.NativeStart.run(Native Method) 

"HeapWorker" daemon prio=5 tid=2 VMWAIT 
| group="system" sCount=1 dsCount=0 obj=0x40511b60 self=0xe6980 
| sysTid=5002 nice=0 sched=0/0 cgrp=[fopen-error:2] handle=944960 
| schedstat=(52612306 103576660 48) 
at dalvik.system.NativeStart.run(Native Method) 

Answer 1

그러나 방법은이 곳을 차단 알고?

시작하여 enabling StrictMode으로 시작하여 앱을 실행하십시오. (또는 웹 로그 분석) 디스크 또는 네트워크를 수행하는 경우 나는/주 응용 프로그램 스레드에서 O, 당신은 (예를 들어, 로그 캣 로그인) 선택한 페널티 스타일에 따라, 그것에 대해 알아낼 것이다 다음에 대한

public void onCreate() { 
    if (BuildConfig.DEBUG) { 
     StrictMode.setThreadPolicy(new StrictMode.ThreadPolicy.Builder() 
       .detectAll() 
       .penaltyLog() 
       .build()); 
    } 

    super.onCreate(); 

    // rest of onCreate() logic here 
}