我正在尝试从Apple新音乐应用中的“新建”标签创建外观:
起初,我认为箭头只是一个unicode字符,但我找到的最接近的符号是:﹀,这不是垂直对齐的,所以这段代码会生成以下内容
navigationItem.title = "All Genres﹀"
navigationController!.navigationBar.titleTextAttributes = [NSForegroundColorAttributeName: UIColor.redColor()]
你有什么建议我会这样做吗?
答案 0 :(得分:2)
我使用@ rounak的解决方案工作了。这是任何想知道的代码
let arrow = UIImage(named: "titleArrow")!.imageWithRenderingMode(.AlwaysOriginal)
let titleButton = UIButton(type: .System)
titleButton.addTarget(self, action: "pickGenre", forControlEvents: .TouchUpInside)
titleButton.setTitle("All Genres", forState: .Normal)
titleButton.setTitleColor(UIColor.redColor(), forState: .Normal)
titleButton.titleLabel!.font = UIFont.systemFontOfSize(16)
titleButton.setImage(arrow, forState: .Normal)
titleButton.sizeToFit()
titleButton.titleEdgeInsets = UIEdgeInsetsMake(0, -titleButton.imageView!.frame.width, 0, titleButton.imageView!.frame.width)
titleButton.imageEdgeInsets = UIEdgeInsetsMake(0, titleButton.titleLabel!.frame.width + 2.5, 0, -titleButton.titleLabel!.frame.width)
navigationItem.titleView = titleButton
titleArrow@2x.png:
答案 1 :(得分:0)
我是通过使用UIButton来做到这一点的。将其图像设置为箭头图像,其标题为All Genres。无论如何,当你点击它时,你想要一个回调,所以按钮在功能上也能很好地发挥作用。
将按钮分配给navigationItem的titleView。
答案 2 :(得分:0)
以上的Swift 3版本:
let arrow = UIImage(named: "titleArrow")!.withRenderingMode(.alwaysOriginal)
let titleButton = UIButton(type: .system)
titleButton.addTarget(self, action: #selector(pickGenre), for: .touchUpInside)
titleButton.setTitle("All Genres", for: .normal)
titleButton.setTitleColor(.red, for: .normal)
titleButton.titleLabel!.font = UIFont.systemFont(ofSize: 16)
titleButton.setImage(arrow, for: .normal)
titleButton.sizeToFit()
titleButton.titleEdgeInsets = UIEdgeInsetsMake(0, -titleButton.imageView!.frame.width, 0, titleButton.imageView!.frame.width)
titleButton.imageEdgeInsets = UIEdgeInsetsMake(0, titleButton.titleLabel!.frame.width + 2.5, 0, -titleButton.titleLabel!.frame.width)
navigationItem.titleView = titleButton