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使用 android 应用程序遇到一些 ANR 问题，因此我实施了 StrictMode 策略。以前从未使用过，因此希望有人可以帮助解释以下内容：

为什么除了前 4 行和持续时间的差异之外，日志显示 2 个看似相似的违规行为？为什么还是有 2 次违规 - 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)
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1 回答 1

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StrictMode 违规表明您正在导致 ANR 问题的 UI 线程上执行 SQLite 查询。

尝试在单独的线程上执行数据库交互，这将防止 ANR 问题并防止显示这些 StrictMode 违规。

从浏览该LogCat输出来看，它看起来像是发生在conx.Activities.JobScheduleActivity.onSaveEvent

一些有用的阅读：

于 2013-02-20T11:37:54.233 回答