tabbar 绑定上 UITabBarController
override func viewDidLoad() {
super.viewDidLoad()
self.addCenterButton(btnimage: UIImage(named: "tx")!, selectedbtnimg: UIImage(named: "txxx")!, selector: "addOrderView", view: self.view)
}
func addCenterButton(btnimage buttonImage:UIImage,selectedbtnimg selectedimg:UIImage,selector:String,view:UIView)
{
//创建一个自定义按钮
let button:UIButton = UIButton(type: UIButtonType.custom)
//btn.autoresizingMask
//button大小为适应图片
button.frame = CGRect(x: 0,y: 0,width: buttonImage.size.width,height: buttonImage.size.height);
button.setImage(buttonImage, for: UIControlState.normal)
button.setImage(selectedimg, for: UIControlState.selected)
//去掉阴影
button.adjustsImageWhenDisabled = true;
//按钮的代理方法
button.addTarget( self, action: Selector(selector), for:UIControlEvents.touchUpInside )
//高度差
let heightDifference:CGFloat = buttonImage.size.height - self.tabBar.frame.size.height
if (heightDifference < 0){
button.center = self.tabBar.center;
}
else
{
var center:CGPoint = self.tabBar.center;
center.y = center.y - heightDifference/2.0;
button.center = center;
}
view.addSubview(button);
}
//按钮方法
func addOrderView()
{
print("执行")
}
