视频网站的制作例子四

With the XML list of movies in hand, it's time to create a Flex application that extends the simplemovie.mxml player with the list of movies. This upgraded Flex application is shown in Listing 7.

Listing 7. mytube1.mxml

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" creationComplete="movieXmlData.send()">

<mx:HTTPService method="get" url="http://localhost:8080/movies.php" id="movieXmlData" result="onGetMovies( event )" />

<mx:Script>
import mx.rpc.events.ResultEvent;
import mx.controls.VideoDisplay;
import mx.controls.List;
import mx.rpc.http.HTTPService;
import mx.collections.ArrayCollection;

[Bindable]
private var movies : ArrayCollection = new ArrayCollection();

public function onGetMovies( event : ResultEvent ) : void
{
  var firstMovie : String = event.result.movies.movie[0].source.toString();
  videoPlayer.source = firstMovie;

  movies = event.result.movies.movie;
  movieList.selectedIndex = 0;
}

public function onPrevious() : void
{
  if ( movieList.selectedIndex == 0 )
    movieList.selectedIndex = movies.length - 1;
  else
    movieList.selectedIndex -= 1;
  videoPlayer.source = this.movieList.selectedItem.source.toString();
}

public function onPlay() : void
{
  videoPlayer.source = this.movieList.selectedItem.source.toString();
  videoPlayer.play();
}

public function onNext() : void
{
  if ( movieList.selectedIndex >= ( movies.length - 1 ) )
    movieList.selectedIndex = 0;
  else
    movieList.selectedIndex += 1;
  videoPlayer.source = this.movieList.selectedItem.source.toString();
}

public function onChange() : void
{
  videoPlayer.source = this.movieList.selectedItem.source.toString();
}
</mx:Script>

<mx:HBox width="100%" paddingLeft="10" paddingTop="10" paddingRight="10">
  <mx:VBox>
    <mx:VideoDisplay width="400" height="300" id="videoPlayer" complete="onNext()" />
    <mx:HBox width="100%" horizontalAlign="center">
       <mx:Button label="<<" click="onPrevious()" />
       <mx:Button label="Play" click="onPlay()" />
       <mx:Button label=">>" click="onNext()" />
    </mx:HBox>
    </mx:VBox>
    <mx:List width="100%" height="340" id="movieList"
      dataProvider="{movies}"
      change="onChange()"
      labelField="title"></mx:List>
</mx:HBox>

</mx:Application>

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