這是我的代碼:CursorIndexOutOfBoundsException與cursor.getInt()
Log.d("MYTAG", "random number -->" + randomNumber);
idRandomCards[i] = cursorTypeZero.getInt(randomNumber);
這是錯誤日誌:
7620-7620/package D/MYTAG﹕ random number -->94
04-02 16:06:51.804 7620-7620/package D/AndroidRuntime﹕ Shutting down VM
04-02 16:06:51.804 7620-7620/package W/dalvikvm﹕ threadid=1: thread exiting with uncaught exception (group=0x41bafda0)
04-02 16:06:51.854 7620-7620/package D/dalvikvm﹕ GC_FOR_ALLOC freed 1283K, 45% free 9237K/16608K, paused 42ms, total 46ms
04-02 16:06:51.864 7620-7620/package E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: package, PID: 7620
android.database.CursorIndexOutOfBoundsException: Index -1 requested, with a size of 206
at ecc
,你會看到,在這種情況下,隨機數具有的價值94. cursor.getCount()= 206.
爲什麼我有這個例外?
我不想'使用cursor.getColumnIndexOrThrow()方法,因爲我需要一個隨機行。
有人可以幫助我嗎?