ios - 如何在 swift 中实现 uiviewController 的自定义初始化方法

Question

如何在 swift 中实现下面的 Objective-C init 方法

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil withName:(NSString *)name {
    if (self = [self initWithNibName:nibNameOrNil bundle:nibBundleOrNil]) {
        self.name = name;
        self.view.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@"bg.png"]];
    }
    return self;
}

Answer 1

等同于:

override init(nibName nibNameOrNil: String?, bundle nibBundleOrNil: NSBundle?, name:String!)
{
      self.init(nibName: nibNameOrNil, bundle: nibBundleOrNil);

        self.name = name;
        self.view.backgroundColor = UIColor(patternImage: UIImage(named: "bg.png"));
}

如果出现错误，您可能必须实现必需的初始化程序，但如果您使用比 Beta5 更高的版本，则不需要:

required init(coder aDecoder: NSCoder!) {
    super.init(coder: aDecoder)
}