cursor中明明有数据,但是moveToNext失败

cursor.getCount()明明有数据,但是moveToNext失败,总在第一条,不能正常移动到下一条,导致这个while死循环。

if (cursor.moveToFirst()) {
    do {
        Integer position = Integer.valueOf(cursor.getPosition());
        if (mFileNameList.containsKey(position)){
            continue;
        }
        FileInfo fileInfo = getFileInfo(cursor);
        if (fileInfo != null) {
            mFileNameList.put(position, fileInfo);
        }
    } while (cursor.moveToNext());
}
原因是我在查询到结果返回cursor时,对这个cursor进行了处理,而就在这个处理的过程中异常了,而且被catch住了,所以导致现象异常。

try {
    if(mLocalCursor != null && mLocalCursor.getCount() > 0 && isTypeAndMusic) {  
        int i = 0;  
        int column = cursor.getColumnIndexOrThrow(columnName); 
        String displayName = null;
        String[] tempArray = null;
        int index= 0;
        for(mLocalCursor.moveToFirst();!mLocalCursor.isAfterLast();mLocalCursor.moveToNext(),i++){  
            SortEntry sortKey = new SortEntry();  
            displayName = cursor.getString(column); 
            if (displayName != null) {
                tempArray = displayName.split("\\.");
                index = tempArray.length;
                displayName = tempArray[index - 1];
            }
            sortKey.key = displayName;
            sortKey.order = i;  
            sortList.add(sortKey);  
        }  
    }  
} catch (Exception e) {
    Log.e(TAG, "SortCursor2: exception = " + e);
}
//Sort  
Collections.sort(sortList,comparator); 

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