view-debugging

Why isn't UIButton returning correct constraints?

由 两盒软妹~` 提交于 2019-12-19 05:44:28
问题 In my code below: I have 5 buttons added into a vertical scrollView. Each button is constrained to the scrollViews's top + 20 ,leading, trailing edges and its height. I have created a b1HeightConstraint variable. It's there to hold the heightConstraint of the b1 button. In a button click, I'm trying to remove this constraint. Yet I'm facing an odd issue: When I log the constraints I only see 2 constraints, even though I've added 4 constraints to it. My the view debug hierarchy is like below:

Assertion failure in UITextView _firstBaselineOffsetFromTop

由 ╄→гoц情女王★ 提交于 2019-11-29 05:31:50
I was learning about the view debugger in Xcode and capturing the view hierarchy with Debug > View Debugging > Capture View Hierarchy . However when I tried it in my app I got the following error: Assertion failure in -[UITextView _firstBaselineOffsetFromTop], /BuildRoot/Library/Caches/com.apple.xbs/Sources/UIKit_Sim/UIKit-3512.60.7/UITextView.m:1683 I could reproduce this in the following simple project: import UIKit class ViewController: UIViewController { override func viewDidLoad() { super.viewDidLoad() let myTextView = UITextView() myTextView.frame = CGRect(x: 50, y: 50, width: 200,

Assertion failure in UITextView _firstBaselineOffsetFromTop

由 ぐ巨炮叔叔 提交于 2019-11-27 23:05:23
问题 I was learning about the view debugger in Xcode and capturing the view hierarchy with Debug > View Debugging > Capture View Hierarchy . However when I tried it in my app I got the following error: Assertion failure in -[UITextView _firstBaselineOffsetFromTop], /BuildRoot/Library/Caches/com.apple.xbs/Sources/UIKit_Sim/UIKit-3512.60.7/UITextView.m:1683 I could reproduce this in the following simple project: import UIKit class ViewController: UIViewController { override func viewDidLoad() {
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