我得到ANR当我尝试从数据库ANR消息与同步方法
public synchronized void insertNewObstacle(Obstacle newObstacle) {
SQLiteDatabase db = this.getWritableDatabase();
db.execSQL("Insert into "+OBSTACLES_TABLE+" Values (' "+
newObstacle.getLongitude() + "' , ' " +
newObstacle.getLatitude() + "' , ' " +
newObstacle.getDirection() + "' , ' " +
newObstacle.getType() + "' , ' " +
newObstacle.getAddress() + "' , '" +
newObstacle.getSubmissionTime() + "' , '" +
newObstacle.getSubmitterName() + "')"
);
db.close();
}
的ANR是因为我从服务器获取数据,然后将其保存在本地 保存之后(获取数据线程1)我想获取保存的数据(线程2),这就是为什么我使 方法同步。
我的问题是:
为什么它不工作,我得到那个愚蠢的ANR消息?
或者我应该指定访问该方法的顺序吗?
1.i有asyncTaskLoader从服务器获取数据并保存它(线程1)。
2.asyncTask将数据发布到UI线程(线程2)。
痕迹文件:
at com.nilecode.matabat.AnonymousUser.DrawTypes(AnonymousUser.java:458)
at com.nilecode.matabat.AnonymousUser$MainNotificationReceiver.onReceive
(AnonymousUser.java:1085)
at android.app.LoadedApk$ReceiverDispatcher$Args.run(LoadedApk.java:763)
at android.os.Handler.handleCallback(Handler.java:730)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5103)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
at dalvik.system.NativeStart.main(Native Method)
"AsyncTask #3" prio=5 tid=32 WAIT
| group="main" sCount=1 dsCount=0 obj=0xa57ed5e8 self=0xb8fcd4a0
| sysTid=2608 nice=10 sched=0/0 cgrp=[fopen-error:2] handle=-1191480800
| state=S schedstat=(21993697 71845945 80) utm=0 stm=1 core=0
at java.lang.Object.wait(Native Method)
- waiting on <0xa57ed700>
(a java.lang.VMThread) held by tid=32 (AsyncTask #3)
at java.lang.Thread.parkFor(Thread.java:1205)
at sun.misc.Unsafe.park(Unsafe.java:325)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:159)
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await
(AbstractQueuedSynchronizer.java:2019)
at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:413)
at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1013)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1073)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
at java.lang.Thread.run(Thread.java:841)
"AsyncTask #2" prio=5 tid=29 WAIT
| group="main" sCount=1 dsCount=0 obj=0xa615bb08 self=0xb8e5b228
| sysTid=2578 nice=10 sched=0/0 cgrp=[fopen-error:2] handle=-1192800808
| state=S schedstat=(29573221 22137266 67) utm=1 stm=1 core=0
at java.lang.Object.wait(Native Method)
- waiting on <0xa60b1a28> (a java.lang.VMThread) held by tid=29 (AsyncTask #2)
at java.lang.Thread.parkFor(Thread.java:1205)
at sun.misc.Unsafe.park(Unsafe.java:325)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:159)
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await
(AbstractQueuedSynchronizer.java:2019)
at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:413)
at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1013)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1073)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
at java.lang.Thread.run(Thread.java:841)
"Binder_3" prio=5 tid=28 NATIVE
| group="main" sCount=1 dsCount=0 obj=0xa5144ba0 self=0xb8dd33e0
| sysTid=2574 nice=0 sched=0/0 cgrp=[fopen-error:2] handle=-1194498544
| state=S schedstat=(3711612 4635252 33) utm=0 stm=0 core=0
#00 pc 0002cff4
/system/lib/libc.so (__ioctl+20)
at dalvik.system.NativeStart.run(Native Method)
"RenderDrive" prio=5 tid=27 SUSPENDED
| group="main" sCount=1 dsCount=0 obj=0xa52ffd40 self=0xb8cf1eb0
| sysTid=2559 nice=0 sched=0/0 cgrp=[fopen-error:2] handle=-1194081904
| state=S schedstat=(278861639 194938487 3193) utm=0 stm=27 core=1
#00 pc 0002ed67
/system/lib/libc.so (__futex_syscall4+23)
at java.lang.VMThread.sleep(Native Method)
at java.lang.Thread.sleep(Thread.java:1013)
at java.lang.Thread.sleep(Thread.java:995)
at maps.p.b.c((null):-1)
at maps.an.b.run((null):-1)
"IntentService[Request New Dataset Service]" prio=5 tid=26 SUSPENDED
| group="main" sCount=1 dsCount=0 obj=0xa60b9148 self=0xb8cce168
| sysTid=2557 nice=0 sched=0/0 cgrp=[fopen-error:2] handle=-1194331408
| state=S schedstat=(22023302408 4429908617 55349) utm=209 stm=1992 core=0
#00 pc 0002ed67
/system/lib/libc.so (__futex_syscall4+23)
at android.database.sqlite.SQLiteConnection.nativeExecuteForChangedRowCount(Native Method)
at android.database.sqlite.SQLiteConnection.executeForChangedRowCount(SQLiteConnection.java:734)
at android.database.sqlite.SQLiteSession.executeForChangedRowCount(SQLiteSession.java:754)
at android.database.sqlite.SQLiteStatement.executeUpdateDelete(SQLiteStatement.java:64)
at android.database.sqlite.SQLiteDatabase.executeSql(SQLiteDatabase.java:1674)
at android.database.sqlite.SQLiteDatabase.execSQL(SQLiteDatabase.java:1603)
at com.nilecode.matabat.data.LocalCachedObstacles.insertNewObstacle(LocalCachedObstacles.java:74)
at com.nilecode.matabat.data.LocalCachedObstacles.insertNewDataSet(LocalCachedObstacles.java:62)
at com.nilecode.matabat.ServerAsyncLoader.loadInBackground(ServerAsyncLoader.java:162)
at com.nilecode.matabat.RequestNewDataSetService.requestAndCacheNearByLocations
(RequestNewDataSetService.java:134)