访问以编程方式创建的UILabel

所有UIView子类都有整数 tag 你的财产

- (void)crateBall:(NSInteger *)nummer {
  UILabel *BallNummer = [[UILabel alloc] initWithFrame:CGRectMake(50, 100, 200, 100)];
  BallNummer.text = [NSString stringWithFormat:@"%i", nummer];
  BallNummer.tag = *nummer;
  [self.view addSubview:BallNummer];
  [BallNummer release];
}

稍后您可以使用 -viewWithTag: 功能:

UILabel *ballNummer = (UILabel*)[self.view viewWithTag:nummer];

BallNummer.text = [NSString stringWithFormat:@"%i", *nummer];

你可以用 UIView '标记属性来标记子视图,并创建一个函数来访问所需的标签

- (void)createLabels {
  UILabel *label;

  label = [[UILabel alloc] initWithFrame:CGRectMake(50, 100, 200, 100)];
  label.tag = 1;
  [self.view addSubview:label];

  label = [[UILabel alloc] initWithFrame:CGRectMake(50, 100, 200, 100)];
  label.tag = 2;
  [self.view addSubview:label];

  //etc...
}

-(UILabel*) getLabel:(NSInteger) index {
    return [self.view viewWithTag:index];
}