摘要： import UIKit class QuartzView: UIView { // Only override draw() if you perform custom drawing. // An empty implementation adversely affects performance during animation. override func dr... 阅读全文

摘要： override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view, typically from a nib. self.view.backgroundColor = UIColor.bla... 阅读全文