Android 2.3.3
Eclipse Version: 3.7.0
LogCat

 LogCat  報錯資訊：

03-15 11:34:43.163: ERROR/AndroidRuntime(17173): java.lang.OutOfMemoryError 
03-15 11:34:43.163: ERROR/AndroidRuntime(17173):     at android.database.CursorWindow.getString_native(Native Method) 、03-15 11:34:43.163: ERROR/AndroidRuntime(17173):     at android.database.CursorWindow.getString(CursorWindow.java:329) 
03-15 11:34:43.163: ERROR/AndroidRuntime(17173):     at android.database.AbstractWindowedCursor.getString(AbstractWindowedCursor.java:49) 
03-15 11:34:43.163: ERROR/AndroidRuntime(17173):     at com.tmall.nokia.db.RecordDBHelper.query(RecordDBHelper.java:140) 
03-15 11:34:43.163: ERROR/AndroidRuntime(17173):     at com.tmall.nokia.manage.RecordDBopt.get(RecordDBopt.java:80) 
03-15 11:34:43.163: ERROR/AndroidRuntime(17173):     at com.tmall.nokia.manage.RecordMessage.sendAll(RecordMessage.java:55) 
03-15 11:34:43.163: ERROR/AndroidRuntime(17173):     at com.tmall.nokia.Check.run(Check.java:456) 
03-15 11:34:43.163: ERROR/AndroidRuntime(17173):     at java.lang.Thread.run(Thread.java:1019)
 

同時有報錯資訊

03-15 11:30:21.763: ERROR/CursorWindow(17173): need to grow: mSize = 1048576, size = 37, freeSpace() = 5, numRows = 6974
03-15 11:30:21.773: ERROR/CursorWindow(17173): not growing since there are already 6974 row(s), max size 1048576 
03-15 11:30:21.804: ERROR/Cursor(17173): Failed allocating 37 bytes for text/blob at 6973,3 
 

  或

03-15 11:34:40.463: ERROR/CursorWindow(4647): need to grow: mSize = 1048576, size = 72, freeSpace() = 18, numRows = 6974 
03-15 11:34:40.473: ERROR/CursorWindow(4647): not growing since there are already 6974 row(s), max size 1048576 
03-15 11:34:40.543: ERROR/CursorWindow(4647): The row failed, so back out the new row accounting from allocRowSlot 6973 
03-15 11:34:40.543: ERROR/Cursor(4647): Failed allocating fieldDir at startPos 0 row 6973 
 

發生錯誤原因分析：

讀取資料庫的快取大約為1M，CursorWindow一次性開啟資料太多，造成記憶體溢位。

資料庫中Record表的資料較多，大概有兩萬條，從以上錯誤資訊，可以看出，大約讀取到6974條時報錯。 

解決辦法：

先查詢Record表的資料量，如果過大，做分批處理，每次處理一定量的資料，避免讀取更多資料造成記憶體溢位。