用position.x更簡單:
````
let ani = CABasicAnimation(keyPath: "position.x")
ani.fromValue = viewWidth + textWidth/2.0
ani.toValue = -textWidth/2.0
ani.duration = 5
ani.fillMode = .forwards
ani.repeatCount = MAXFLOAT
nameLabel.layer.add(ani, forKey: nil)
````
iOS 滾動顯示文字跑馬燈效果滾動顯示文字 在網(wǎng)上搜了好多跑馬燈效果都能實現(xiàn),但是看了具體的代碼,感覺好復(fù)雜的樣子,因為很小的一個功能,還要用到scollView啊,定時器什么的。這里來一個最簡...