2012-08-15 72 views
4

在Android应用程序中遇到一些ANR问题,所以我实现了StrictMode策略。从未使用过,因此希望有人可以帮忙解释以下内容:Android StrictMode策略

为什么日志会显示2条违规,除了前4行和持续时间的差异之外,它们看起来很相似?为什么有2个违规行为 - 这是否意味着代码被执行了两次?

任何帮助表示赞赏

08-15 14:24:14.314: DEBUG/StrictMode(767): StrictMode policy violation; ~duration=13876 ms: android.os.StrictMode$StrictModeDiskWriteViolation: policy=17 violation=1 
    at android.os.StrictMode$AndroidBlockGuardPolicy.onWriteToDisk(StrictMode.java:732) 
    at android.database.sqlite.SQLiteDatabase.execSQL(SQLiteDatabase.java:1791) 
    at com.j256.ormlite.android.AndroidCompiledStatement.execSql(AndroidCompiledStatement.java:151) 
    at com.j256.ormlite.android.AndroidCompiledStatement.runUpdate(AndroidCompiledStatement.java:70) 
    at com.j256.ormlite.stmt.StatementExecutor.update(StatementExecutor.java:382) 
    at com.j256.ormlite.dao.BaseDaoImpl.update(BaseDaoImpl.java:374) 
    at conx.Repositories.JobRepository.update(JobRepository.java:381) 
    at conx.Presenters.JobSchedulePresenter.onSave(JobSchedulePresenter.java:200) 
    at conx.Activities.JobScheduleActivity.onSaveEvent(JobScheduleActivity.java:111) 
    at conx.Activities.JobScheduleActivity.access$100(JobScheduleActivity.java:43) 
    at conx.Activities.JobScheduleActivity$2.onChildClick(JobScheduleActivity.java:169) 
    at android.widget.ExpandableListView.handleItemClick(ExpandableListView.java:588) 
    at android.widget.ExpandableListView.performItemClick(ExpandableListView.java:527) 
    at android.widget.AbsListView$PerformClick.run(AbsListView.java:1877) 
    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:3835) 
    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:864) 
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:622) 
    at dalvik.system.NativeStart.main(Native Method) 

08-15 14:24:14.314: DEBUG/StrictMode(767): StrictMode policy violation; ~duration=12086 ms: android.os.StrictMode$StrictModeDiskWriteViolation: policy=17 violation=1 
    at android.os.StrictMode$AndroidBlockGuardPolicy.onWriteToDisk(StrictMode.java:732) 
    at android.database.sqlite.SQLiteStatement.execute(SQLiteStatement.java:52) 
    at android.database.sqlite.SQLiteDatabase.execSQL(SQLiteDatabase.java:1809) 
    at com.j256.ormlite.android.AndroidCompiledStatement.execSql(AndroidCompiledStatement.java:151) 
    at com.j256.ormlite.android.AndroidCompiledStatement.runUpdate(AndroidCompiledStatement.java:70) 
    at com.j256.ormlite.stmt.StatementExecutor.update(StatementExecutor.java:382) 
    at com.j256.ormlite.dao.BaseDaoImpl.update(BaseDaoImpl.java:374) 
    at conx.Repositories.JobRepository.update(JobRepository.java:381) 
    at conx.Presenters.JobSchedulePresenter.onSave(JobSchedulePresenter.java:200) 
    at conx.Activities.JobScheduleActivity.onSaveEvent(JobScheduleActivity.java:111) 
    at conx.Activities.JobScheduleActivity.access$100(JobScheduleActivity.java:43) 
    at conx.Activities.JobScheduleActivity$2.onChildClick(JobScheduleActivity.java:169) 
    at android.widget.ExpandableListView.handleItemClick(ExpandableListView.java:588) 
    at android.widget.ExpandableListView.performItemClick(ExpandableListView.java:527) 
    at android.widget.AbsListView$PerformClick.run(AbsListView.java:1877) 
    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:3835) 
    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:864) 
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:622) 
    at dalvik.system.NativeStart.main(Native Method) 

回答

1

的StrictMode违规显示您正在执行,这是造成的ANR问题在UI线程一个SQLite查询。

尝试在单独的线程上执行数据库交互,这将防止ANR问题并阻止显示这些严格模式违规。

从通过LogCat输出飞掠它看起来像它在conx.Activities.JobScheduleActivity.onSaveEvent

存在的一些有用的阅读: