java – CursorIndexOutOfBoundException：请求索引1,大小为1

我目前得到一个“CursorIndexOutOfBoundsException：请求索引1,大小为1”
但是,我有索引-1的这个异常,然后插入了一个cursor.moveToFirst(),然后我用索引0,然后做了cursor.moveToNext();
我想用我的代码做什么？我想要一个选定项目的信息(这就是为什么selectionArgs与sQueryid有关.我做错了什么？

Cursor c = a.managedQuery(uri,projection,//projection
            "_ID=?",//selection string
            new String[]{sQueryid},//selection args array of strings
            DepotTableMetaData.DEFAULT_SORT_ORDER); //sort order
    c.moveToFirst();
    c.moveToNext();
    int iqrcode = c.getColumnIndex(ContentProviderMetaData.DepotTableMetaData.ITEM_QRCODE);     
    int iname = c.getColumnIndex(ContentProviderMetaData.DepotTableMetaData.ITEM_NAME);
    int iamount = c.getColumnIndex(ContentProviderMetaData.DepotTableMetaData.ITEM_AMOUNT);
    int iunit = c.getColumnIndex(ContentProviderMetaData.DepotTableMetaData.ITEM_UNIT);
    int ippu = c.getColumnIndex(ContentProviderMetaData.DepotTableMetaData.ITEM_PPU);
    int itotal = c.getColumnIndex(ContentProviderMetaData.DepotTableMetaData.ITEM_TOTAL);
    int icomment = c.getColumnIndex(ContentProviderMetaData.DepotTableMetaData.ITEM_COMMENT);


        //Gather values
        String id = c.getString(Integer.parseInt(queryid.toString()));

        String name = c.getString(iname);
        String amount = c.getString(iamount);
        String unit = c.getString(iunit);
        String ppu = c.getString(ippu);
        String total = c.getString(itotal);
        String comment = c.getString(icomment);
        String qrcode = c.getString(iqrcode);

        String[] info = new String[]{id,name,amount,unit,ppu,total,comment,qrcode};