2017-08-29 57 views
0

我的項目的結構是這樣的: - 查看 --UIScrollView ---查看 ---- containerItems實現迅速的UIScrollView 3

我試圖讓我的屏幕滾動的,但始終是靜態的,這是我的代碼:

class LoginCtrl: UIViewController { 
    let svPantalla: UIScrollView = { 
     let sv = UIScrollView(frame: UIScreen.main.bounds) 
     sv.backgroundColor = UIColor(r: 31, g: 90, b: 161) 
     sv.contentSize = CGSize(width: 0, height: 0) 
     sv.isScrollEnabled = true 
     sv.contentOffset = CGPoint(x: 10, y: 20) 
     sv.translatesAutoresizingMaskIntoConstraints = false 
     return sv 
    }() 
    let v2: UIView = { 
     let view = UIView() 
     view.backgroundColor = UIColor.green 
     view.translatesAutoresizingMaskIntoConstraints = false 
     return view 
    }() 
    //contenedor textField 
    let contenedorCampos: UIView = { 
     let view = UIView() 
     view.backgroundColor = UIColor(r: 255, g: 255, b: 255) 
     view.translatesAutoresizingMaskIntoConstraints = false 
     view.layer.cornerRadius = 5 
     view.layer.masksToBounds = true 
     return view 
    }() 
    let botonLoginRegistrarme: UIButton = { 
     let button = UIButton(type: .system) 
     button.backgroundColor = UIColor(r: 255, g: 152, b: 0) 
     button.setTitle("Iniciar Sesion", for: .normal) 
     button.setTitleColor(UIColor.white, for: .normal) 
     button.titleLabel?.font = UIFont.boldSystemFont(ofSize: 16) 
     button.translatesAutoresizingMaskIntoConstraints = false 
     return button 
    }() 
    override func viewDidLoad() { 
     super.viewDidLoad() 
     view.addSubview(svPantalla) 
     svPantalla.addSubview(v2) 
     v2.addSubview(contenedorCampos) 
     v2.addSubview(botonLoginRegistrarme) 
     setear_posicion_svPantalla() 
     setear_posicion_hijoV() 
     setear_posicion_contenedor() 
     setear_posicion_botonRegistrarme() 
     //this functions are in the image added 
    } 
} 

functions 我的滾動不工作,我怎麼能解決這個問題?

+0

你能實際上看到你的滾動視圖? – JohnnyAW

+0

你必須在你的滾動子元素中爲高度設置約束,那麼滾動視圖將計算它的contentSize以使其可滾動。您也可以嘗試手動設置,但從未嘗試過。在你的viewDidLoad中加入'svPantalla.contentSize = CGSize(width:yourWidth,height:yourHeight)' – GIJOW

+0

no @JohnnyAW但是backgroundcolor我可以看到 –

回答

0

由於已設置

sv.contentSize = CGSize(寬度:0,高度:0)

請刪除此行或添加值而不是0

+0

我加了但我有同樣的錯誤 –