错误光标不关闭的Android

首先要说的是，应用效果很好，但日志有一个错误与此光标：错误光标不关闭的Android

public Cursor getDiff() { 
     SQLiteDatabase db = this.getReadableDatabase(); 
     String sacaDif = "SELECT dificultad FROM " + people; 
     Cursor c = db.rawQuery(sacaDif, null); 
     return c; 
    }

我知道这是因为我不关闭它，但我之前或发送时后不能关闭游标...

这是日志文件：

05-30 14:48:16.011: D/dalvikvm(363): GC_FOR_MALLOC freed 4814 objects/256176 bytes in 100ms 
05-30 14:48:16.039: E/Cursor(363): Finalizing a Cursor that has not been deactivated or closed. database = /data/data/com.example.proyecto008almacenardatossharedpreferences/databases/administracion, table = null, query = SELECT dificultad FROM dificultad 
05-30 14:48:16.039: E/Cursor(363): android.database.sqlite.DatabaseObjectNotClosedException: Application did not close the cursor or database object that was opened here 
05-30 14:48:16.039: E/Cursor(363): at android.database.sqlite.SQLiteCursor.<init>(SQLiteCursor.java:210) 
05-30 14:48:16.039: E/Cursor(363): at android.database.sqlite.SQLiteDirectCursorDriver.query(SQLiteDirectCursorDriver.java:53) 
05-30 14:48:16.039: E/Cursor(363): at android.database.sqlite.SQLiteDatabase.rawQueryWithFactory(SQLiteDatabase.java:1345) 
05-30 14:48:16.039: E/Cursor(363): at android.database.sqlite.SQLiteDatabase.rawQuery(SQLiteDatabase.java:1315) 
05-30 14:48:16.039: E/Cursor(363): at com.example.proyecto008almacenardatossharedpreferences.CreaTablas.getDiff(CreaTablas.java:47) 
05-30 14:48:16.039: E/Cursor(363): at com.example.proyecto008almacenardatossharedpreferences.Opciones.onCreate(Opciones.java:25) 
05-30 14:48:16.039: E/Cursor(363): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047) 
05-30 14:48:16.039: E/Cursor(363): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627) 
05-30 14:48:16.039: E/Cursor(363): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679) 
05-30 14:48:16.039: E/Cursor(363): at android.app.ActivityThread.access$2300(ActivityThread.java:125) 
05-30 14:48:16.039: E/Cursor(363): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033) 
05-30 14:48:16.039: E/Cursor(363): at android.os.Handler.dispatchMessage(Handler.java:99) 
05-30 14:48:16.039: E/Cursor(363): at android.os.Looper.loop(Looper.java:123) 
05-30 14:48:16.039: E/Cursor(363): at android.app.ActivityThread.main(ActivityThread.java:4627) 
05-30 14:48:16.039: E/Cursor(363): at java.lang.reflect.Method.invokeNative(Native Method) 
05-30 14:48:16.039: E/Cursor(363): at java.lang.reflect.Method.invoke(Method.java:521) 
05-30 14:48:16.039: E/Cursor(363): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868) 
05-30 14:48:16.039: E/Cursor(363): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626) 
05-30 14:48:16.039: E/Cursor(363): at dalvik.system.NativeStart.main(Native Method)

我能做些什么来阻止这种错误？谢谢

来源

2013-05-30 manunu

你从来没有在你的光标上调用close（）吗？ – Blackbelt

为什么不返回数据而不是光标？ –

如果我做c.close（）之前发送它不工作.. 我会尝试返回数据 – manunu

将数据存储在pojo类对象中并返回而不是返回游标。这是最佳做法。

来源

2013-05-30 15:01:23 NaserShaikh

谢谢你的帮助，我知道pojo类是最好的解决方案，但它是一个小应用程序，它是没有必要的;） – manunu

错误光标不关闭的Android

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