在CTsliding面板中bottomController显示nil

Question

我在CTSlidingup面板中有问题，它有问题。

显示错误

bottomController CTSlidingUpPanel.CTBottomSlideController吗？没有。 它显示上面的错误我该如何解决呢？ CTsliding面板bottomController显示nil

import UIKit
import CTSlidingUpPanel

class ViewController: UIViewController, CTBottomSlideDelegate {

    @IBOutlet weak var bottomView: UIView!
    var bottomController:CTBottomSlideController?;


    override func viewDidLoad() {
        super.viewDidLoad()
        bottomController = CTBottomSlideController(parent: view, bottomView: bottomView, tabController: self.tabBarController!, navController: self.navigationController, visibleHeight: 64)


        bottomController?.setAnchorPoint(anchor: 0.7)
        bottomController?.delegate = self;

        bottomController?.onPanelExpanded = {
            print("Panel Expanded in closure")
        }

        bottomController?.onPanelCollapsed = {
            print("Panel Collapsed in closure")
        }

        bottomController?.onPanelMoved = { offset in
            print("Panel moved in closure " + offset.description)
        }

        //Uncomment to specify top margin on expanded panel
        //bottomController?.setExpandedTopMargin(pixels: 100)

        if bottomController?.currentState == .collapsed
        {
            //do anything, i don't care
        }
    }

    override func viewWillTransition(to size: CGSize, with coordinator: UIViewControllerTransitionCoordinator) {
        super.viewWillTransition(to: size, with: coordinator)
        bottomController?.viewWillTransition(to: size, with: coordinator)
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }

    func didPanelCollapse()
    {
        print("Collapsed");
    }
    func didPanelExpand(){
        print("Expanded")
    }
    func didPanelAnchor(){
        print("Anchored")
    }

    func didPanelMove(panelOffset: CGFloat)
    {
        print(panelOffset);
    }


}

或建议滑动面板库。或举一些例子

Answer 1

我认为您没有设置bottonView参考插座

如果您没有设置，请设置

Answer 2

看，根据您的屏幕截图判断，您没有 tabBarController 。

bottomController = CTBottomSlideController(parent: view, bottomView: bottomView, tabController: self.tabBarController!, navController: self.navigationController, visibleHeight: 64)

在初始化程序中，如果您使用 self.tabBarController！（请注意感叹号），并且没有 tabBarController ，此行将引发错误

自述文件中所述，您可以做的是为该参数提供无。