Question

我想在按下uibutton时按下UICollectionViewController。我测试了一些，当我按下按钮时，它导航到一个空白的ViewController。

Root View Controller（CategoryViewController）

class CategoryViewController: UIViewController {



override func viewDidLoad() {
    super.viewDidLoad()

    //UIButton

    let image = UIImage(named: "menudo") as UIImage?
    let button   = UIButton(type: UIButtonType.Custom) as UIButton
    button.frame = CGRectMake(100, 100, 100, 100)
    button.setImage(image, forState: .Normal)
    button.addTarget(self, action: #selector(CategoryViewController.action(_:)), forControlEvents:.TouchUpInside)
    self.view.addSubview(button)

}

func action(sender: UIButton!) {
    let layout = UICollectionViewLayout()
    let collectionViewController = MealCollectionViewController(collectionViewLayout: layout)
    navigationController?.pushViewController(collectionViewController, animated: true)

}

我想按下uibutton（MealCollectionViewController）时显示这个ViewController

import Foundation
import UIKit


class MealCollectionViewController: UICollectionViewController, UICollectionViewDelegateFlowLayout {

    //Creating the CellId for reusable cell

    private let cellId = "cellId"


    override func viewDidLoad() {
            super.viewDidLoad()

        //Creating CollectionView

        collectionView?.backgroundColor = UIColor.whiteColor()
        //setting the cellId reusable to show on screen USE CATEGORY CELL BECAUSE MEALCOLLECTION VIEW IS NOT A CELL

        collectionView?.registerClass(CategoryCell.self, forCellWithReuseIdentifier: cellId)
    }


    //Creating the layout for the cell 

    override func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell {
        let cell = collectionView.dequeueReusableCellWithReuseIdentifier(cellId, forIndexPath: indexPath) as! CategoryCell
        return cell
    }


    override func collectionView(collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        return 1
    }


    func collectionView(collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAtIndexPath indexPath: NSIndexPath) -> CGSize {
        return CGSizeMake(view.frame.width, view.frame.height)
    }
}

Answer 1

如果您正在使用故事板，请使用此代码...

nil,foo,*nil,bar = ['no','foo','nop','not at all','bar']

Answer 2

使用此代码 -

让mealController = self.storyboard？.instantiateViewControllerWithIdentifier（“你的控制器标识符名称在这里”）作为MealCollectionViewController self.navigationController？.pushViewController（mealController，animated：true）

pushViewController使用uibutton到UICollectionviewController以编程方式Swift

2 个答案: