请简要说明Contentprovider对外共享数据的好处答:public Uri insert(Uri uri, ContentValues values) public int delete(Uri uri, String selection, String[] selectionArgs) public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs,...
android SQLite数据怎么显示到UI界面中答:db.update(String table, Contentvalues values, String whereClause, String whereArgs); db.delete(String table, String whereClause, String whereArgs); db.insert(String table, String nullColumnHack, ContentValues values);db.update(String table, Contentvalues values, String whereClause, String whereArgs);...