swift2 当从uitableviewcell按下UIButton时,如果任何其他单元正在播放,则停止其他声音

wlzqhblo  于 2022-11-06  发布在  Swift
关注(0)|答案(3)|浏览(214)

当我按下UIButton时,音乐开始。当我再次按下按钮时,音乐将停止。在播放音乐的过程中,如果我按下另一个单元格按钮,两个音乐都会播放。我不明白如何停止其他单元格播放的音乐,或者换句话说,一次只能播放一个音乐示例。还有一个按钮图像动画自动设置为默认状态,如sender.selected = false
请问有谁能告诉我我该怎么做?
谢谢
UIButton connected with CollectionViewCell Class
Default image State And when i pressed on button on different cells each cell play music and and change its image state to play

class RadioCollectionViewController: UIViewController, UICollectionViewDataSource, UICollectionViewDelegate {

    let reuseIdentifier = "cell" 

    var objects = [
        ["url" : "https://s3.amazonaws.com/kargopolov/BlueCafe.mp3", "image": "1.jpg"],
        ["url" : "https://s3.amazonaws.com/kargopolov/BlueCafe.mp3", "image": "2.jpg"],
        ["url" : "http://2016.downloadming1.com/bollywood%20mp3/Sanam%20Teri%20Kasam%20(2016)/02%20-%20Kheech%20Meri%20Photo%20-%20DownloadMing.SE.mp3", "image": "3.jpg"],
        ["url" : "http://2016.downloadming1.com/bollywood%20mp3/Sanam%20Teri%20Kasam%20(2016)/03%20-%20Bewajah%20-%20DownloadMing.SE.mp3", "image": "4.jpg"],
        ["url" : "http://2016.downloadming1.com/bollywood%20mp3/Sanam%20Teri%20Kasam%20(2016)/04%20-%20Tera%20Chehra%20-%20DownloadMing.SE.mp3", "image": "5.jpg"],
        ["url" : "http://2016.downloadming1.com/bollywood%20mp3/Sanam%20Teri%20Kasam%20(2016)/02%20-%20Kheech%20Meri%20Photo%20-%20DownloadMing.SE.mp3", "image": "6.jpg"],
        ["url" : "http://media.downloadming.se/TEMP/Loveshhuda%20(2015)/01%20-%20Mar%20Jaayen%20-%20DownloadMing.SE.mp3", "image": "5.jpg"],
        ["url" : "http://2016.downloadming1.com/bollywood%20mp3/Sanam%20Teri%20Kasam%20(2016)/01%20-%20Sanam%20Teri%20Kasam%20-%20DownloadMing.SE.mp3", "image": "7.jpg"],
        ["url" : "http://2016.downloadming1.com/bollywood%20mp3/Sanam%20Teri%20Kasam%20(2016)/02%20-%20Kheech%20Meri%20Photo%20-%20DownloadMing.SE.mp3", "image": "1.jpg"]]

    func collectionView(collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        return self.objects.count
    }

    func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell {
        let cell = collectionView.dequeueReusableCellWithReuseIdentifier(reuseIdentifier, forIndexPath: indexPath) as! RadioCollectionViewCell

        let object = objects[indexPath.row]
        cell.url = object["url"]! 
        cell.img.image = UIImage(named: object["image"]!)
        return cell
    }
}

在我的UICollectionViewCell类中

class RadioCollectionViewCell: UICollectionViewCell {

    @IBOutlet weak var img: UIImageView!

    var url : String!

    var playerItem:AVPlayerItem?
    var player:AVPlayer?

    @IBAction func audioControlButtonAction(sender: UIButton) {

        let nurl = NSURL(string: "\(url)")!
        playerItem = AVPlayerItem(URL: nurl)
        player=AVPlayer(playerItem: playerItem!)

        if sender.selected == false {

            player!.play()
            sender.selected = true

        }else

        {
            player?.pause()
            sender.selected = false
        }   
    }
}
eqqqjvef

eqqqjvef1#

不要每次都检查音频是否在播放,只需调用player.pause(),然后使用player.play()启动音频播放

kfgdxczn

kfgdxczn2#

不要在RadioCollectionViewCell中初始化播放器,它将创建多个播放器示例。因此,在viewDidLoad中viewcontroller中只初始化一次播放器,并使用同一个播放器播放来自不同单元格的具有不同url的音乐。因此,您的单元格应该只有URl(不同的音乐有不同的url),实现**didSelectItemAtIndexPath**方法,通过该方法将url传递给普通播放器,并通过该方法播放。

按备注中的要求更新:

例如,在一个实施例中,

func collectionView(collectionView: UICollectionView, didSelectItemAtIndexPath indexPath: NSIndexPath){

var cell : UICollectionViewCell = collectionView.cellForItemAtIndexPath(indexPath)!
cell.backgroundColor = UIColor.magentaColor()
 }

在这里,您可以使用url初始化播放器。当选择单元格时,将调用此方法。因此,在单击单元格时初始化播放器。如果您有array of url,则可以通过indexPath获取特定的url。因此,从该方法初始化播放器和播放。

编辑:

如果你在单元格中使用按钮来播放和暂停,那么就不要实现上面的代码。
我发现你正在IBaction中创建新的播放器。使用相同的播放器。你可以使用一个公开声明的标准播放器。不要在ibaction中创建新的。取avplayer的公共示例并使用相同的播放器播放音乐。就是这样。希望这会有所帮助:)

i2byvkas

i2byvkas3#

尝试将速率默认设置为0.0,并仅在弹奏时指定1.0。

@IBAction func audioControlButtonAction(sender: UIButton) {

    let nurl = NSURL(string: "\(url)")!
    playerItem = AVPlayerItem(URL: nurl)
    player=AVPlayer(playerItem: playerItem!)
    player.rate = 0.0
    if sender.selected == false {
        player.rate = 1.0
        player!.play()
        sender.selected = true
    }else{
        player?.pause()
        sender.selected = false
    }   
}

也可以在didSelect方法中设置rate,默认为0.0,然后只在播放声音文件时指定1.0。
希望这能奏效!

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