想要模仿iPhone锁屏相机拖动

Question

I've been searching and searching on how apple makes the dragging motion on the lock screen to open the camera so clean. I'm trying to do a similar thing with an app where you drag from the bottom up to reveal a menu, but i cant quite get it right. Anyone know how to, or of any tutorials that show how to do this? Thanks in advance!

Answer 1

To follow up what's been mentioned by Hejazi I believe you can achieve this in 3 steps:

• create a background rectangle with some corner radius (this is a property of CGRect).
• create a top view, corresponding to the part you want to be able to slide. Attach a pan gesture to this view so you will be able to handle the animation for this view.
• for the text part being highlighted I think you need another two views: I will apply a mask corresponding to the text to a view so you get some transparency only for the letters of your text and animate a white round view behind it.