iOS Question SetLayoutAnimated on a circle

[Alexander Stolte]

can I prevent a circle from becoming square when I enlarge or reduce it with SetLayoutAnimated?

 

[Alexander Stolte]

Is this possible in B4I?
"Setting radius in viewWillLayoutSubviews will solve the problem"

override func viewWillLayoutSubviews() {
  super.viewWillLayoutSubviews()
  profileImageView.layer.cornerRadius = profileImageView.frame.height / 2.0
}

How to keep a round imageView round using auto layout?

How do I turn a rectangular image view into a circular image view that can hold shape in auto layout without setting width and height restraints? Thereby allowing the imageView to define it’s size,...

stackoverflow.com

 

[Alexander Stolte]

And i found this:

Circular (round) UIView resizing with AutoLayout... how to animate cornerRadius during the resize animation?

I have a subclassed UIView that we can call CircleView. CircleView automatically sets a corner radius to half of its width in order for it to be a circle. The problem is that when "CircleView" is

stackoverflow.com

 

[Semen Matusovskiy]

Is this possible in B4I?

Possible (with modifications). But there is a difference in IOS releases.
For example, in IOS 13 you will not receive viewWillLayoutSubviews during animation.

Guess, better to animate 'manually' (to resize/move by timer).

 

[Alexander Stolte]

Guess, better to animate 'manually' (to resize/move by timer).

do you know how?

 

[Semen Matusovskiy]

For example, like in attached project. Looks better in release mode or on device (due to drawing speed)

 

[Alexander Stolte]

For example, like in attached project. Looks better in release mode or on device (due to drawing speed)

Thank you so mutch!
I'm not good at maths, how can i make the circle from big to small?

 

[Semen Matusovskiy]

Let's look DrawAnimatedCircle in Button1_Click. Parameter #4 (radius1) is initial size, parameter #8 (radius2) is final size. You can simply exchange values.

    DrawAnimatedCircle (1000, Page1.RootPanel.Width / 2, Page1.RootPanel.Height / 2, 0.2 * Min (Page1.RootPanel.Height, Page1.RootPanel.Width), Page1.RootPanel.Width / 2, Page1.RootPanel.Height / 2, 0.05 * Min (Page1.RootPanel.Height, Page1.RootPanel.Width))

 

[Alexander Stolte]

Thank you, I have mentioned you as thanks that I could reach my goal!

[B4X] [XUI] AS Radio Button

This is a simple cross platform RadioButton. I spend a lot of time in creating views, like this and to create a high quality view cost a lot of time. If you want to support me and further views, then you can do it here by Paypal. :) In B4I the animation is limited, because otherwise the circle...

www.b4x.com