切换子视频剪辑立即播放/正在播放按钮

Question

是否有一种简单的方法可以将另一个动态加载的movieClip的movieClip切换出来？

我有和eventListener onCLICK，当它被选中时，它启动一个FLVPlayback，但我还想换出另一个movieClip立即播放/正在播放按钮。

只是一些背景。我正在循环并将播放按钮jpg加载到一个影片剪辑中，并将增量编号作为名称分配给播放按钮影片剪辑。点击播放按钮播放电影，但现在我还想将播放按钮图形切换为现在播放的图形。

//ADD EVENT LISTENER TO ALL MY THUMBS_BUTTON 
    thumbs_button.addEventListener (MouseEvent.CLICK, playVideoThumb); 

    for (var i:Number = 0; i < my_total; i++) { 

     var playButton_url = "play_now.png"; 
     var playButton_loader = new Loader(); 
     playButton_loader.name = i; 
     playButton_loader.load (new URLRequest(root_path + playButton_url)); 
     playButton_loader.contentLoaderInfo.addEventListener (Event.COMPLETE, playButtonLoaded); 
     playButton_loader.y = (115 * i) + (135 * i) + 138; 


//PUT NEW LOADED IMAGE INTO THUMBS_BUTTON 
function playButtonLoaded (e:Event):void { 
    var my_playButton:Loader = Loader(e.target.loader); 
    thumbs_button.addChild (my_playButton); 
} 


//THIS IS WHERE I NEED TO REMOVE THE PLAY NOW AND PUT IN THE NOW PLAYING BUTTON 
function playVideoThumb (e:MouseEvent):void { 
    var video_url = root_path + my_videos[e.target.name].@URL; 
    my_player.source = video_url; 
    var blank_butt:Number = thumbs_button.getChildByName(e.target.name).x; 
    thumbs_button.removeChild(thumbs_button.getChildByName(e.target.name)); 
} 

Answer 1

看着你的代码我假设你可能想要一个类似功能的单选按钮。有几种方法可以做到这一点。一种方式是通过删除和添加的儿童或者在下面只使用可见性的情况下：

// will contain hidden button 
var hidden_button: DisplayObject = null; 
// playing now button 
var playingNow_button: Loader; 

//ADD EVENT LISTENER TO ALL MY THUMBS_BUTTON 
thumbs_button.addEventListener (MouseEvent.CLICK, playVideoThumb); 

for (var i:Number = 0; i < my_total; i++) { 
    var playButton_url: String = "play_now.png"; 
    var playButton_loader: Loader = new Loader(); 
    playButton_loader.name = i; 
    playButton_loader.load (new URLRequest(root_path + playButton_url)); 
    playButton_loader.contentLoaderInfo.addEventListener (Event.COMPLETE, playButtonLoaded); 
    playButton_loader.y = (115 * i) + (135 * i) + 138; 
} 
// load playingNow graphic 
playingNow_button = new Loader(); 
playingNow_button.load(new URLRequest(root_path + 'playing_now.png')); 
playingNow_button.contentLoaderInfo.addEventListener (Event.COMPLETE, playingNowLoaded); 


//PUT NEW LOADED IMAGE INTO THUMBS_BUTTON 
function playButtonLoaded (e:Event):void { 
    var my_playButton:Loader = Loader(e.target.loader); 
    thumbs_button.addChild (my_playButton); 
} 

//ADD PLAYING_NOW BUT HIDE 
function playingNowLoaded (e:Event):void { 
    playingNow_button.visible = false; 
    thumbs_button.addChild (playingNow_button); 
} 


//THIS IS WHERE I NEED TO REMOVE THE PLAY NOW AND PUT IN THE NOW PLAYING BUTTON 
function playVideoThumb (e:MouseEvent):void { 
    // exit if user clicked playing Now button 
    if (e.target == playingNow_button) return; 
    // also exit if user clicked on something that is not a loader 
    if (!(e.target is Loader)) return; 
    // show hidden button (if any) 
    if (hidden_button != null) hidden_button.visible = true; 
    // assign current button to hidden_button 
    hidden_button = DisplayObject(e.target); 
    // copy location, scale and rotation 
    playingNow_button.transform.matrix = hidden_button.transform.matrix; 
    // show playingNow and hide button 
    playingNow_button.visible = true; 
    hidden_button.visible = false; 
    // play video 
    var video_url = root_path + my_videos[e.target.name].@URL; 
     my_player.source = video_url; 
} 

如果您不需要加载按钮的任何处理，就可以马上加入载入对象到thumbs_button。您不必在COMPLETE处理程序中执行此操作。