Uiscrollview not able to add uilabels

Question

I am trying to add uilabels to a uiscrollview. I use a for loop to create 20 labels and then add them one by one in the scroll view. Does no work. Here is my code

-(void)setScrollViews{
    for (int i = 0; i < 80; i++) 
    {
        UILabel *label = [[UILabel alloc]initWithFrame:CGRectMake(0, 20 * i,160 , 30)];
        label.font = [UIFont systemFontOfSize:12.0];
        label.textColor = [UIColor blueColor];
        label.text = [NSString stringWithFormat:@"Label number %d", i ];
        label.numberOfLines = 0;
        [label sizeToFit];
        [self.activitiesScrollView setContentSize:CGSizeMake(320, self.activitiesScrollView.frame.size.height + 20)];
        [self.activitiesScrollView addSubview:label];
        [self.view addSubview:self.activitiesScrollView];
   }
}

I am using storyboard. I also tried alloc init but it still failed. I did set the delegate in the viewdidload . I changed the background image for the scrollview to check if it is there on the screen and it is.

EDIT:This works now, All I did was restart Xcode

Answer 1

try this . . .

you are adding scrollview 20 times to the uiview in the loop . that is also wrong part of your code

-(void)setScrollViews{

    [self.view addSubview:self.activitiesScrollView];

    for (int i = 0; i < 80; i++) 
    {
        UILabel *label = [[UILabel alloc]initWithFrame:CGRectMake(0, 20 * i,160 , 30)];
        label.font = [UIFont systemFontOfSize:12.0];
        label.textColor = [UIColor blueColor];
        label.text = [NSString stringWithFormat:@"Label number %d", i ];
        label.numberOfLines = 0;
        [label sizeToFit];
        [self.activitiesScrollView addSubview:label];
        [self.activitiesScrollView setContentSize:CGSizeMake(320, self.activitiesScrollView.frame.size.height + 20)];

   }
}

Answer 2

try this:

-(void)setScrollViews{
        for (int i = 0; i < 80; i++) 
        {
            UILabel *label = [[UILabel alloc]initWithFrame:CGRectMake(0, 20 * i,160 , 30)];
            label.font = [UIFont systemFontOfSize:12.0];
            label.textColor = [UIColor blueColor];
            label.text = [NSString stringWithFormat:@"Label number %d", i ];
            label.numberOfLines = 0;
            [label sizeToFit];
            [self.activitiesScrollView setContentSize:CGSizeMake(320, self.activitiesScrollView.frame.size.height + 20)];
            [self.activitiesScrollView addSubview:label];
       }
      [self.view addSubview:self.activitiesScrollView];

    }