Show simple alert dialog on iOS

gistfile1.m

//refs http://d.hatena.ne.jp/thata/20100213/1265987041 
   UIAlertView *alert = [[UIAlertView alloc]
                          initWithTitle:@"hoge"
                          message:textfield.text
                          delegate: nil
                          cancelButtonTitle:@"OK"
                          otherButtonTitles:nil];
    [alert show];
    [alert release];