iPhone：如何在iPhone上显示带有图像的弹出视图控制器？

Question

我想在iPhone上显示带有图像的小弹出窗口（就像iPad中的弹出窗口一样）。

我该怎么做？

- Devang

---

可能是您之前问题的重复：如何在iPad上实现模态弹出视图？像使用Sharekit的Facebook屏幕一样？ - jscs

@Josh：嘿，我正在询问iPhone上包含图像的弹出效果，而不是modalpresentview。 - Devang

Answer 1

@devang，你一定会喜欢这个iOS开源弹出窗口API（WePopover）。

另一种方法是Mehul建议的。如果你找到类似于iPad中UIPopover的东西，请告诉我们。

- Rahul Sharma

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不错的链接。但它只允许文本而不允许图像。我想显示图像。 - Devang

Answer 2

您可以动态地获取UIView，然后在其中添加UIImageView，就像这样：

您可以动态地获取UIView，然后在其中添加UIImageView，就像这样

    UIView *tmpView = [[UIView alloc] initWithFrame:CGRectMake(XPosition, YPosition, Width, Height)];       
    UIImage *tmpImg = [UIImage imageNamed:@"YourImageName.png"];
    UIImageView *tmpImgView = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, tmpImg.size.width, tmpImg.size.height)];
    tmpImgView.image = tmpImg;
    [self.view addSubview:tmpView];

希望这能有效...

- Mehul Mistri

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但是它不会像在iPad上使用Popoverview那样产生相同的效果。我想在iPhone上获得相同的效果！ - Devang

Answer 3

CollectionView可以在屏幕上弹出。以下是显示CollectionView作为弹出窗口并隐藏弹出窗口的完整代码

import UIKit

class ViewController: UIViewController , UICollectionViewDataSource, UICollectionViewDelegate  {

    //let popView = UICollectionView.init(frame: CGRect(x:8,y:30,width:304,height:200))

    var demoCollectionView:UICollectionView? = nil;

    @IBOutlet var button: UIButton!

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

    }

    func loadColorCollectionView() {
        let layout: UICollectionViewFlowLayout = UICollectionViewFlowLayout()
        layout.sectionInset = UIEdgeInsets(top: 20, left: 10, bottom: 10, right: 10)
        layout.itemSize = CGSize(width: 30, height: 30)

        demoCollectionView = UICollectionView(frame: CGRect(x:8,y:20,width:304,height:200), collectionViewLayout: layout)


        demoCollectionView?.dataSource = self
        demoCollectionView?.delegate = self
        demoCollectionView?.register(UICollectionViewCell.self, forCellWithReuseIdentifier: "Cell")
        demoCollectionView?.backgroundColor = UIColor.white
    }

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

    func numberOfSections(in collectionView: UICollectionView) -> Int {
        return 1;
    }

    func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        return 200;
    }

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

        if indexPath.row%2 == 0 {
        cell.backgroundColor = UIColor.red;
        }
        else{
            cell.backgroundColor = UIColor.blue;
        }
        return cell;
    }

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

        guard let statusBar = UIApplication.shared.value(forKeyPath: "statusBarWindow.statusBar") as? UIView else { return }

        if indexPath.row%2 == 0 {
            statusBar.backgroundColor = UIColor.red;
        }
        else{
            statusBar.backgroundColor = UIColor.blue;
        }
        self.demoCollectionView?.removeFromSuperview()

    }

    @IBAction func showMessage() {

        //popView.backgroundColor = UIColor.darkGray;
        //self.view.addSubview(popView)


        self.view.addSubview(demoCollectionView!)
    }

    override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
        //self.popView.removeFromSuperview()
        self.demoCollectionView?.removeFromSuperview()


    }

}

我在视图控制器中创建了一个按钮，并在按钮点击时调用showMessage()函数，它会弹出一个颜色集合视图。在选择颜色后，弹出窗口将消失。

- Robin Khurana