问题
i m getting this force down error in my app,when i m trying to parse RSS with DOM.it\'s not always the force down problem however...this is the logcat:
**ANR keyDispatchingTimedOut**
DALVIK THREADS:
\"main\" prio=5 tid=1 NATIVE
| group=\"main\" sCount=1 dsCount=0 s=N obj=0x40025b50 self=0xcdb8
| sysTid=2504 nice=0 sched=0/0 cgrp=bg_non_interactive handle=-1345017804
| schedstat=( 573577878 521301271 1476 )
at org.apache.harmony.luni.platform.OSNetworkSystem.readSocketImpl(Native Method)
at org.apache.harmony.luni.platform.OSNetworkSystem.read(OSNetworkSystem.java:358)
at org.apache.harmony.luni.net.PlainSocketImpl.read(PlainSocketImpl.java:561)
at org.apache.harmony.luni.net.SocketInputStream.read(SocketInputStream.java:88)
at org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnectionImpl$ChunkedInputStream.read(HttpURLConnectionImpl.java:458)
at java.io.InputStreamReader.read(InputStreamReader.java:275)
at org.kxml2.io.KXmlParser.peek(KXmlParser.java:931)
at org.kxml2.io.KXmlParser.pushText(KXmlParser.java:881)
at org.kxml2.io.KXmlParser.nextImpl(KXmlParser.java:354)
at org.kxml2.io.KXmlParser.nextToken(KXmlParser.java:1406)
at org.apache.harmony.xml.parsers.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:369)
at org.apache.harmony.xml.parsers.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:362)
at org.apache.harmony.xml.parsers.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:362)
at org.apache.harmony.xml.parsers.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:362)
at org.apache.harmony.xml.parsers.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:362)
at org.apache.harmony.xml.parsers.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:135)
at javax.xml.parsers.DocumentBuilder.parse(DocumentBuilder.java:110)
at kostas.menu.olympiakos.DomFeedParser.parse(DomFeedParser.java:26)
at kostas.menu.olympiakos.nea.loadFeed(nea.java:51)
at kostas.menu.olympiakos.nea.onCreate(nea.java:38)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1066)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2799)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2866)
at android.app.ActivityThread.access$2300(ActivityThread.java:140)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2181)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:143)
at android.app.ActivityThread.main(ActivityThread.java:5097)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:521)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
at dalvik.system.NativeStart.main(Native Method)
\"Binder Thread #2\" prio=5 tid=6 NATIVE
| group=\"main\" sCount=1 dsCount=0 s=N obj=0x46eea810 self=0x135a00
| sysTid=2509 nice=0 sched=0/0 cgrp=bg_non_interactive handle=1213600
| schedstat=( 10253904 21514895 127 )
at dalvik.system.NativeStart.run(Native Method)
\"Binder Thread #1\" prio=5 tid=5 NATIVE
| group=\"main\" sCount=1 dsCount=0 s=N obj=0x46eea748 self=0x12cab0
| sysTid=2508 nice=0 sched=0/0 cgrp=bg_non_interactive handle=1301736
| schedstat=( 12603756 119659428 129 )
at dalvik.system.NativeStart.run(Native Method)
\"Compiler\" daemon prio=5 tid=4 VMWAIT
| group=\"system\" sCount=1 dsCount=0 s=N obj=0x46ee32a8 self=0x127bc8
| sysTid=2507 nice=0 sched=0/0 cgrp=bg_non_interactive handle=1300256
| schedstat=( 197021496 268585180 1155 )
at dalvik.system.NativeStart.run(Native Method)
\"Signal Catcher\" daemon prio=5 tid=3 RUNNABLE
| group=\"system\" sCount=0 dsCount=0 s=N obj=0x46ee31e8 self=0xa8140
| sysTid=2506 nice=0 sched=0/0 cgrp=bg_non_interactive handle=1299816
| schedstat=( 915528 5706786 7 )
at dalvik.system.NativeStart.run(Native Method)
\"HeapWorker\" daemon prio=5 tid=2 VMWAIT
| group=\"system\" sCount=1 dsCount=0 s=N obj=0x45947800 self=0x1224b8
| sysTid=2505 nice=0 sched=0/0 cgrp=bg_non_interactive handle=1212984
| schedstat=( 27404784 3082276 24 )
at dalvik.system.NativeStart.run(Native Method)
回答1:
ANR Error
Activity Not Responding.
Your activity took to long to say to the Android OS 'hey i'm still alive'! (This is what the UI thread does).
http://developer.android.com/guide/practices/design/responsiveness.html
Basically if you make the UI thread do some complex task it's too busy doing your task to tell the OS that it is still 'alive'.
http://android-developers.blogspot.co.uk/2009/05/painless-threading.html
You should move your XML Parsing code to another thread, then use a callback to tell the UI thread you have finished and to do something with the result.
http://developer.android.com/resources/articles/timed-ui-updates.html
回答2:
If Logcat doesn't output anything usefull, try to pull traces.txt from /data/anr/traces.txt
adb pull /data/anr/traces.txt .
as it may give more information on where the ANR Exception occurrred
回答3:
Don't run blocking operations on the UI thread. Launch your own thread or use the AsyncTask class for a more convenient way to solve this.
来源：https://stackoverflow.com/questions/5513457/anr-keydispatchingtimedout-error