如何将子视图拖出父视图？

Question

So in my app I have a UIImageView[1] that takes up about the top half of the screen. I also have a TapGesture recognizer that adds a UIImageView[2] as a subview of UIImageView[1] .

In the bottom half of my application I have another UIImageView[3] I need the UIImageView[2] 's to be able to interact with.
However, when I drag the UIImageView[2] outside the frame of UIImageView[1] it obviously disappears.
I was wondering if anyone knew a way I could drag UIImageView[2] to UIImageView[3] without UIImageView[2] disappearing while still maintaining the frame of UIImageView[1] .

I've tried resizing UIImageView[1] to just encompass the whole screen but since I'm using Aspect Fit it centers the image and if I use the top left align thing it doesn't aspect fit it.

Answer 1

试试这个禁用子视图裁剪：

[parentView clipsToBounds:NO];

Answer 2

尝试以下操作将UIImageView[2]拖动到视图中的其他任何位置

[self.view addsubview: UIImageView[2]];