在UIButton中添加rightview

我尝试的代码获得了输出U所遇到的问题。

btnSort.backgroundColor = UIColor.redColor()->

 let btnSort   = UIButton(type: UIButtonType.System) as UIButton! //this is Swift2.0 in this place use your pre    btnSort.frame =  CGRectMake(2, 74, 140, 40)    btnSort.tintColor = UIColor.whiteColor()    btnSort.setImage(UIImage(named:"youtube16x16.png"), forState: UIControlState.Normal)    btnSort.imageEdgeInsets = UIEdgeInsets(top: 6,left: 100,bottom: 6,right: 14)    btnSort.titleEdgeInsets = UIEdgeInsets(top: 0,left: -30,bottom: 0,right: 34)    btnSort.setTitle("SORT", forState: UIControlState.Normal)    btnSort.layer.borderWidth = 1.0    btnSort.backgroundColor = UIColor.redColor() --> set the background color and check     btnSort.layer.borderColor = UIColor.whiteColor().CGColor    btnSort.addTarget(self, action: Selector("showSortTbl"), forControlEvents: UIControlEvents.TouchUpInside)    self.view.addSubview(btnSort)

Swift3

 let btnSort   = UIButton(type: .system)    btnSort.frame =  CGRect(x: 2, y: 74, width: 140, height: 40)    btnSort.tintColor = UIColor.white    btnSort.setImage(UIImage(named:"youtube16x16.png"), for: .normal)    btnSort.imageEdgeInsets = UIEdgeInsets(top: 6,left: 100,bottom: 6,right: 14)    btnSort.titleEdgeInsets = UIEdgeInsets(top: 0,left: -30,bottom: 0,right: 34)    btnSort.setTitle("SORT", for: .normal)    btnSort.layer.borderWidth = 1.0    btnSort.backgroundColor = UIColor.red //--> set the background color and check    btnSort.layer.borderColor = UIColor.white.cgColor    btnSort.addTarget(self, action: #selector(ViewController.showSortTbl), for: UIControlEvents.touchUpInside)    self.view.addSubview(btnSort)

and handle the action as

  func showSortTbl() {    // do your stuff here}