【简答题】请简要说明下面程序片断功能。 if (cursor != null) { while (cursor.moveToNext()) { St ring column1 = cursor.getString(cursor.getColumnIndex("column1")); int column2 = cursor.getInt(cursor.getColumnIndex("column2")); ...
【简答题】请简要说明下面程序片断功能。 public static final int TABLE1_DIR = 0; public static final int TABLE1_ITEM = 1; public static final int TABLE2_DIR = 2; public static final int TABLE2_ITEM = 3; private static UriMatch...