How to get a certain subview from UIView by tag

Question

I\'m a noob in Objective-C and I have one question.

I have one UILabel object that I adding to one UIView with this code:

UILabel *label = [         


        

Answer 1

Example with UILabel:

UILabel *label = (UILabel *)[self.view viewWithTag:1];

good luck!

Answer 2

You can get your subviews with for loop iteration

for (UIView *i in self.view.subviews){
      if([i isKindOfClass:[UILabel class]]){
            UILabel *newLbl = (UILabel *)i;
            if(newLbl.tag == 1){
                /// Write your code
            }
      }
}

Swift

let label:UILabel = self.view.viewWithTag(1) as! UILabel

Answer 3

Swift 3.0 and Swift 4.0

if let subLabel:UILabel = primaryView.viewWithTag(123) as? UILabel {
    subLabel.text = "do things here :-D"
}

Answer 4

You can get the subview with the code which others have mentioned, just like

UILabel *tagLabel = (UILabel*)[view viewWithTag:1];

But an important point to remember,

• Make sure the parent view doesn't have the same tag value as of the subview. Otherwise the viewWithTag: method will return the receiver view (on which you are calling viewWithTag:) instead of returning the actual subview you want.

So keep the parent view and child views tags distinct whenever you need to use viewWithTag:.

Answer 5

If you are on the same view

UILabel *tagLabel =  (UILabel*)[view viewWithTag:1];

Also, if you want a new instance of UILabel

UILabel *newTagLabel = [tagLabel copy];
//customize new label here...
[view addSubView:newTagLabel];

Answer 6

You could use the viewWithTag: method.