android.database.sqlite.DatabaseObjectNotClosedException: Application did not close the cursor or da

來源:互聯網
上載者:User

這個異常的拋出並沒有讓程式崩潰。

    這些異常資訊來源於SQLiteDatabase類的finalize方法。從異常的資訊"close() was never explicitly called on database ,Application did not close the cursor or database object that was opened here
"可以知道這是由於程式中使用到的遊標或SQLiteDatabase對象沒有close所導致。也就是說在程式中建立的Cursor對象或者SQLiteDatabase對象,在使用完後沒有關閉,而當它們都變成“垃圾"被GC時,就會打出以上的資訊。

Java代碼 
  1. @Override 
  2. protected void finalize() { 
  3.     if (isOpen()) { 
  4.         Log.e(TAG, "close() was never explicitly called on database '" + 
  5.                 mPath + "' ", mStackTrace); 
  6.         closeClosable(); 
  7.         onAllReferencesReleased(); 
  8.     } 
    @Override    protected void finalize() {        if (isOpen()) {            Log.e(TAG, "close() was never explicitly called on database '" +                    mPath + "' ", mStackTrace);            closeClosable();            onAllReferencesReleased();        }    }

    所以要想不發生這樣的錯誤,在編碼時一定要記住,當你不在使用Cursor或SQLiteDatabase對象時,將它們close(),

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