Android基础：Android Content Provider

核心提示：Cursor cur = managedQuery(myUri, columns,null, null, null );if (cur.moveToFirst()) {String id = null;String userName = null;do {id = cur.getString(cur.getColumn

Cursor cur = managedQuery(myUri, columns,null, null, null );

if (cur.moveToFirst()) {

String id = null;

String userName = null;

do {

id = cur.getString(cur.getColumnIndex(MyUsers.User._ID));

userName = cur.getString(cur.getColumnIndex(MyUsers.User.USER_NAME));

Toast.makeText(this, id + ” ” + userName, Toast.LENGTH_LONG).show();

} while (cur.moveToNext());

}

}

}

上面的类将先向数据库中添加一条用户数据，然后显示数据库中所有的用户数据。