java - ANR 输入超时

Question

输入调度超时(等待，因为没有窗口有焦点，但有一个焦点应用程序可能最终在完成启动时添加一个窗口。)

嗨!我从几个用户那里收到了这份奇怪的 ANR 报告。不幸的是，我对 ANR 报告的了解非常有限，我希望有人能帮助我了解这可能是什么原因

"main" tid=1 Waiting 
"main" prio=5 tid=1 Waiting
| group="main" sCount=1 dsCount=0 flags=1 obj=0x733b6610 self=0x7b2cebea00
| sysTid=5982 nice=-10 cgrp=default sched=0/0 handle=0x7bb1b3b9a8


| state=S schedstat=( 895549085 117045629 1679 ) utm=75 stm=13 core=7 HZ=100
  | stack=0x7fc1071000-0x7fc1073000 stackSize=8MB
  | held mutexes=
  at java.lang.Object.wait (Native method)
- waiting on <0x06cee88a> (a java.lang.Object)
  at java.lang.Thread.parkFor$ (Thread.java:2137)
- locked <0x06cee88a> (a java.lang.Object)
  at sun.misc.Unsafe.park (Unsafe.java:358)
  at java.util.concurrent.locks.LockSupport.park (LockSupport.java:190)
  at java.util.concurrent.FutureTask.awaitDone (FutureTask.java:450)
  at java.util.concurrent.FutureTask.get (FutureTask.java:192)
  at android.os.AsyncTask.get (AsyncTask.java:542)
  at trai.gov.in.dnd.app.DNDMasterActivityNEW.forceUpdateAppDialog (DNDMasterActivityNEW.java:281)
  at trai.gov.in.dnd.app.DNDMasterActivityNEW.Init (DNDMasterActivityNEW.java:272)
  at trai.gov.in.dnd.app.DNDMasterActivityNEW.onCreate (DNDMasterActivityNEW.java:92)
  at android.app.Activity.performCreate (Activity.java:6999)
  at android.app.Activity.performCreate (Activity.java:6990)
  at android.app.Instrumentation.callActivityOnCreate (Instrumentation.java:1214)
  at android.app.ActivityThread.performLaunchActivity (ActivityThread.java:2731)
  at android.app.ActivityThread.handleLaunchActivity (ActivityThread.java:2856)
  at android.app.ActivityThread.-wrap11 (ActivityThread.java)
  at android.app.ActivityThread$H.handleMessage (ActivityThread.java:1589)
  at android.os.Handler.dispatchMessage (Handler.java:106)
  at android.os.Looper.loop (Looper.java:164)
  at android.app.ActivityThread.main (ActivityThread.java:6494)
  at java.lang.reflect.Method.invoke (Native method)
  at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:438)
  at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:807)
"AsyncTask #1" tid=12 Native Performing network I/O
"AsyncTask #1" prio=5 tid=12 Native
  | group="main" sCount=1 dsCount=0 flags=1 obj=0x12dc0000 self=0x7b21fef800
  | sysTid=6009 nice=10 cgrp=default sched=0/0 handle=0x7b176854f0
  | state=S schedstat=( 226769531 4555214 150 ) utm=20 stm=1 core=7 HZ=100
  | stack=0x7b17583000-0x7b17585000 stackSize=1037KB
  | held mutexes=
  #00  pc 000000000006a58c  /system/lib64/libc.so (__ppoll+8)
  #01  pc 00000000000264c0  /system/lib64/libc.so (poll+88)
  #02  pc 000000000002ea78  /system/lib64/libjavacore.so (???)
  #03  pc 0000000000236ad0  /system/framework/arm64/boot-core-libart.oat (Java_libcore_io_Linux_poll___3Landroid_system_StructPollfd_2I+160)
  at libcore.io.Linux.poll (Native method)
  at libcore.io.BlockGuardOs.poll (BlockGuardOs.java:216)
  at libcore.io.IoBridge.isConnected (IoBridge.java:254)
  at libcore.io.IoBridge.connectErrno (IoBridge.java:188)
  at libcore.io.IoBridge.connect (IoBridge.java:130)
  at java.net.PlainSocketImpl.socketConnect (PlainSocketImpl.java:129)
  at java.net.AbstractPlainSocketImpl.doConnect (AbstractPlainSocketImpl.java:356)
- locked <0x0b28cfd7> (a java.net.SocksSocketImpl)
  at java.net.AbstractPlainSocketImpl.connectToAddress (AbstractPlainSocketImpl.java:200)
  at java.net.AbstractPlainSocketImpl.connect (AbstractPlainSocketImpl.java:182)
  at java.net.SocksSocketImpl.connect (SocksSocketImpl.java:357)
  at java.net.Socket.connect (Socket.java:616)
  at org.apache.http.conn.scheme.PlainSocketFactory.connectSocket (PlainSocketFactory.java:124)
  at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection (DefaultClientConnectionOperator.java:149)
  at org.apache.http.impl.conn.AbstractPoolEntry.open (AbstractPoolEntry.java:169)
  at org.apache.http.impl.conn.AbstractPooledConnAdapter.open (AbstractPooledConnAdapter.java:124)
  at org.apache.http.impl.client.DefaultRequestDirector.execute (DefaultRequestDirector.java:366)
  at org.apache.http.impl.client.AbstractHttpClient.execute (AbstractHttpClient.java:560)
  at org.apache.http.impl.client.AbstractHttpClient.execute (AbstractHttpClient.java:492)
  at org.apache.http.impl.client.AbstractHttpClient.execute (AbstractHttpClient.java:470)
  at trai.gov.in.dnd.extras.Network.HttpCallToServer (Network.java:122)
  at trai.gov.in.dnd.extras.AsyncNetworkWithID.doInBackground (AsyncNetworkWithID.java:32)
  at trai.gov.in.dnd.extras.AsyncNetworkWithID.doInBackground (AsyncNetworkWithID.java:10)
  at android.os.AsyncTask$2.call (AsyncTask.java:333)
  at java.util.concurrent.FutureTask.run (FutureTask.java:266)
  at android.os.AsyncTask$SerialExecutor$1.run (AsyncTask.java:245)
  at java.util.concurrent.ThreadPoolExecutor.runWorker (ThreadPoolExecutor.java:1162)
  at java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:636)
  at java.lang.Thread.run (Thread.java:764)

Answer 1

当在主(主)线程中进行长时间操作时，会发生 ANR。如果此线程繁忙，Android 将无法在应用程序中处理任何进一步的 GUI 事件，从而抛出一个 ANR 对话框。

很明显，您的部分代码占用了大量资源或需要时间才能完成。这就是导致您的应用抛出 ANR 的原因。

检查您的DNDMasterActivityNEW.java 类，有一些东西延迟了您输入的调度。有几种方法可以解决这个问题:

• 您可以使用 progressbar 指示调度何时进行，并在完成时将可见性设置为“GONE”。
• 使用不同的线程进行调度。
• 找到一种更省时的替代方法来替代您当前用于发送输入的方法。

如果您仍然无法解决问题，请发布您的DNDMasterActivityNEW.java 代码。