Warning: file_get_contents(/data/phpspider/zhask/data//catemap/9/ios/120.json): failed to open stream: No such file or directory in /data/phpspider/zhask/libs/function.php on line 167

Warning: Invalid argument supplied for foreach() in /data/phpspider/zhask/libs/tag.function.php on line 1116

Notice: Undefined index: in /data/phpspider/zhask/libs/function.php on line 180

Warning: array_chunk() expects parameter 1 to be array, null given in /data/phpspider/zhask/libs/function.php on line 181

Warning: file_get_contents(/data/phpspider/zhask/data//catemap/5/objective-c/27.json): failed to open stream: No such file or directory in /data/phpspider/zhask/libs/function.php on line 167

Warning: Invalid argument supplied for foreach() in /data/phpspider/zhask/libs/tag.function.php on line 1116

Notice: Undefined index: in /data/phpspider/zhask/libs/function.php on line 180

Warning: array_chunk() expects parameter 1 to be array, null given in /data/phpspider/zhask/libs/function.php on line 181
UICollectionView水平布局,带分页IOS Swift 3.0_Ios_Objective C_Swift3_Uicollectionview_Uicollectionviewlayout - Fatal编程技术网

UICollectionView水平布局,带分页IOS Swift 3.0

UICollectionView水平布局,带分页IOS Swift 3.0,ios,objective-c,swift3,uicollectionview,uicollectionviewlayout,Ios,Objective C,Swift3,Uicollectionview,Uicollectionviewlayout,我想显示UIcollectionview单元格的水平布局以及两个单元格之间的分页和空间 左右滑动可移动收藏视图页面 我已经从情节提要设置了以下属性 滚动启用“假”,分页启用“真”,滚动方向“水平” 为此,我添加了SwipeGesture,查看下面的代码 import UIKit class ViewController: UIViewController, UICollectionViewDelegate, UICollectionViewDataSource , UICollecti

我想显示UIcollectionview单元格的水平布局以及两个单元格之间的分页和空间

左右滑动可移动收藏视图页面

我已经从情节提要设置了以下属性

滚动启用“假”,分页启用“真”,滚动方向“水平”

为此,我添加了SwipeGesture,查看下面的代码

   import UIKit

class ViewController: UIViewController, UICollectionViewDelegate, UICollectionViewDataSource , UICollectionViewDelegateFlowLayout, UIGestureRecognizerDelegate{

    @IBOutlet weak var pageControl: UIPageControl!;
    @IBOutlet weak var heightOfCollection: NSLayoutConstraint!;
    @IBOutlet weak var MyCollection: UICollectionView!;

    var cellHeight:CGFloat = 0.0;
    var numberOfItems: Float = 10;
    var setCurrentIndex:Int = 0;

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.

        //Add Gestures
        let swipeRight = UISwipeGestureRecognizer(target: self, action: #selector(respondToSwipeGesture(gesture:)));
        swipeRight.direction = UISwipeGestureRecognizerDirection.right;
        MyCollection.addGestureRecognizer(swipeRight);

        let swipeLeft = UISwipeGestureRecognizer(target: self, action: #selector(respondToSwipeGesture(gesture:)));
        swipeLeft.direction = UISwipeGestureRecognizerDirection.left;
        MyCollection.addGestureRecognizer(swipeLeft);
    }

    override func viewWillAppear(_ animated: Bool) {

        self.view.layoutIfNeeded();
        cellHeight = (MyCollection.frame.size.width - 20) / 3;
        heightOfCollection.constant = (cellHeight * 2) + 10;
        MyCollection.reloadData();

        MyCollection.clipsToBounds = true;

        let noOfPage = ceil(Double(numberOfItems/6));
        pageControl.numberOfPages = Int(noOfPage.rounded(.up));

    }

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

    // MARK: - Collection View Delegate Methods.

    func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {

        return CGSize(width: cellHeight, height: cellHeight);
    }

    func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        return Int(numberOfItems);
    }

    func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
        let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "MyCell", for: indexPath as IndexPath) as! MyCell;

        cell.backgroundColor = UIColor(red: CGFloat(drand48()), green: CGFloat(drand48()), blue: CGFloat(drand48()), alpha: 1.0);

        cell.lblNumber.text = "\(indexPath.row + 1)";

        return cell;
    }

    func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {

        print(indexPath.row);
    }

    //MARK:- Handle Swipe Gesture Recognizer.
    func respondToSwipeGesture(gesture: UIGestureRecognizer) {

        if let swipeGesture = gesture as? UISwipeGestureRecognizer {

            switch swipeGesture.direction {
            case UISwipeGestureRecognizerDirection.right:
                if setCurrentIndex > 0 {
                    setCurrentIndex -= 1

                    let transition:CATransition! = CATransition();
                    transition.duration = 0.5;
                    transition.timingFunction = CAMediaTimingFunction(name: kCAMediaTimingFunctionEaseInEaseOut);
                    transition.type = kCATransitionPush;
                    transition.subtype = kCATransitionFromLeft;
                    MyCollection.layer.add(transition, forKey: nil);

                    MyCollection.contentOffset.x = (CGFloat(setCurrentIndex) * MyCollection.frame.size.width) + CGFloat(setCurrentIndex * 10)
                    pageControl.currentPage = setCurrentIndex;
                }


            case UISwipeGestureRecognizerDirection.left:

                if setCurrentIndex < pageControl.numberOfPages - 1 {
                    setCurrentIndex += 1;

                    let transition:CATransition! = CATransition();
                    transition.duration = 0.5;
                    transition.timingFunction = CAMediaTimingFunction(name: kCAMediaTimingFunctionEaseInEaseOut);
                    transition.type = kCATransitionPush;
                    transition.subtype = kCATransitionFromRight;
                    MyCollection.layer.add(transition, forKey: nil);

                    MyCollection.contentOffset.x = (CGFloat(setCurrentIndex) * MyCollection.frame.size.width) + CGFloat(setCurrentIndex * 10)
                    pageControl.currentPage = setCurrentIndex;
                }
            default:
                break
            }
        }
    }
}
导入UIKit
类ViewController:UIViewController、UICollectionViewDelegate、UICollectionViewDataSource、UICollectionViewDelegateFlowLayout、UIGestureRecognitizerDelegate{
@IBVAR弱pageControl:UIPageControl!;
@IBOutlet弱var集合高度:NSLayoutConstraint!;
@ibvar MyCollection:UICollectionView!;
变量单元格高度:CGFloat=0.0;
var numberOfItems:浮动=10;
var setCurrentIndex:Int=0;
重写func viewDidLoad(){
super.viewDidLoad()
//加载视图后,通常从nib执行任何其他设置。
//添加手势
让swipeRight=UISweepGestureRecognitor(目标:自我,操作:#选择器(响应Sweep手势(手势:)));
swipeRight.direction=UISWipGestureRecognitizerDirection.right;
MyCollection.AddgestureRecognitor(swipeRight);
让swipeLeft=UISweepGestureRecognitor(目标:自我,操作:#选择器(响应Sweep手势(手势:)));
swipelft.direction=uiswipgesturerecognizerdirection.left;
MyCollection.AddgestureRecognitor(swipeLeft);
}
覆盖函数视图将出现(uo动画:Bool){
self.view.layoutifneed();
cellHeight=(MyCollection.frame.size.width-20)/3;
收集高度。常数=(单元格高度*2)+10;
MyCollection.reloadData();
MyCollection.clipsToBounds=true;
设noOfPage=ceil(双倍(numberOfItems/6));
pageControl.numberOfPages=Int(noOfPage.rounded(.up));
}
重写函数didReceiveMemoryWarning(){
超级。我收到了记忆警告()
//处置所有可以重新创建的资源。
}
//标记:-集合视图委托方法。
func collectionView(collectionView:UICollectionView,布局collectionViewLayout:UICollectionViewLayout,sizeForItemAt indexPath:indexPath)->CGSize{
返回CGSize(宽度:cellHeight,高度:cellHeight);
}
func collectionView(collectionView:UICollectionView,numberOfItemsInSection:Int)->Int{
返回Int(numberOfItems);
}
func collectionView(collectionView:UICollectionView,cellForItemAt indexPath:indexPath)->UICollectionViewCell{
让cell=collectionView.dequeueReusableCell(带有reuseidentifier:“MyCell”,for:indexPath作为indexPath)作为!MyCell;
cell.backgroundColor=UIColor(红色:CGFloat(drand48()),绿色:CGFloat(drand48()),蓝色:CGFloat(drand48()),alpha:1.0);
cell.lblNumber.text=“\(indexPath.row+1)”;
返回单元;
}
func collectionView(collectionView:UICollectionView,didSelectItemAt indexPath:indexPath){
打印(indexPath.row);
}
//标记:-手柄滑动手势识别器。
func RespondToSweep手势(手势:UIGestureRecognitor){
如果让swipeGesture=手势为?UISweepGestureRecognitor{
开关开关方向{
案例UISweepGestureRecognitzerDirection.right:
如果setCurrentIndex>0{
setCurrentIndex-=1
let transition:cattransition!=cattransition();
过渡时间=0.5;
transition.timingFunction=CAMediaTimingFunction(名称:kCAMediaTimingFunctionEaseInEaseOut);
transition.type=kCATransitionPush;
transition.subtype=kCATransitionFromLeft;
MyCollection.layer.add(transition,forKey:nil);
MyCollection.contentOffset.x=(CGFloat(setCurrentIndex)*MyCollection.frame.size.width)+CGFloat(setCurrentIndex*10)
pageControl.currentPage=setCurrentIndex;
}
案例UISweepGestureRecognitzerDirection.left:
如果setCurrentIndex
我想在红色框中显示像下面屏幕截图一样的aspected输出


我已使用kst收集视图页面水平布局解决了此问题

在github上查看此演示


我已使用kst收集视图页面水平布局解决了此问题

在github上查看此演示


…A什么不起作用?您的确切问题是什么?请在屏幕截图红色框中查看我的透视输出,当前显示错误的序列…aa以及什么不起作用?您的确切问题是什么?请在屏幕截图红色框中查看我的透视输出,当前显示错误的序列。
  override func viewWillAppear(_ animated: Bool) {

        self.view.layoutIfNeeded();
        cellHeight = (collectionListing.frame.size.width - 20) / 3;
        collectionHeightConst.constant = (cellHeight * 2) + 10;

        let pageHorizontalLayout = KSTCollectionViewPageHorizontalLayout();
        pageHorizontalLayout.itemSize = CGSize(width: cellHeight, height: cellHeight);
        pageHorizontalLayout.lineSpacing = 10;
        pageHorizontalLayout.interitemSpacing = 10;
        collectionListing.collectionViewLayout = pageHorizontalLayout;

        collectionListing.reloadData();
    }