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iosuiviewsubviews

Modifying viewWithTag

In my iPad application I have an UIView with multiple subviews, each one with a different tag value. I want to search for a subview with specific tag value. Currently I am using the for() loop for looping through to find a specific UIView with the required tag.

 for (int i=0; i<[[myView subviews] count]; i++) {

    if ([[[myView subviews] objectAtIndex:1] tag]==1) {

        //assign that view

    }
}

I just want to know, whether [myView viewWithTag:1] also use same way to find that specific tagged view and which way is faster

Solution

  • Not exactly the same, viewWithTag uses depth-first search to find the subview. In another word, it scans all subviews recursively until it finds an UIView with a tag equals to the parameter.

    See also in Apple official Documentation