Question

如何设置FLVPlaybackCaptioning组件用于字幕的字体？使用textarea的style属性不会做任何事情，并且使用TextFormat会使文本变为空白，即使嵌入了字体。

Answer 1

看起来字体以及文本的其他属性是在读取字幕的XML文件中指定的（这来自documentation）：

<?xml version="1.0" encoding="UTF-8"?>
  <tt xml:lang="en" xmlns="http://www.w3.org/2006/04/ttaf1"  xmlns:tts="http://www.w3.org/2006/04/ttaf1#styling">
      <head>
          <styling>
              <style id="1" tts:textAlign="right"/>
              <style id="2" tts:color="transparent"/>
              <style id="3" style="2" tts:backgroundColor="white"/>
              <style id="4" style="2 3" tts:fontSize="20"/>
          </styling>
      </head>
      <body>
           <div xml:lang="en">
              <p begin="00:00:00.50" dur="500ms">Four score and twenty years ago</p>
              <p begin="00:00:02.50"><span tts:fontFamily="monospaceSansSerif,proportionalSerif,TheOther"tts:fontSize="+2">our forefathers</span> brought forth<br /> on this continent</p>
              <p begin="00:00:04.40" dur="10s" style="1">a <span tts:fontSize="12 px">new</span> <span tts:fontSize="300%">nation</span></p>
              <p begin="00:00:06.50" dur="3">conceived in <span tts:fontWeight="bold" tts:color="#ccc333">liberty</span> <span tts:color="#ccc333">and dedicated to</span> the proposition</p>
              <p begin="00:00:11.50" tts:textAlign="right">that <span tts:fontStyle="italic">all</span> men are created equal.</p>
     <p begin="15s" style="4">The end.</p>
          </div>    
      </body>
  </tt>

那么组件可能不希望你覆盖那些？

Answer 2

//为FLVPlaybackCaptioning实例创建一个监听器，监听textfield / target的创建，例如。

myFLVPlybkcap.addEventListener(CaptionTargetEvent.CAPTION_TARGET_CREATED, captionTargetCreatedHandler);

//当发生这种情况时，将文本字段的'defaultTextFormat'设置为您自己的...

private function captionTargetCreatedHandler(e:CaptionTargetEvent):void{
  var myTextFormat:TextFormat = new TextFormat();
  myTextFormat.font = "Arial";
  myTextFormat.color = 0x00FF00;
  myTextFormat.size = 18;
  (e.captionTarget as TextField).defaultTextFormat = myTextFormat; 
}

如何更改FLVPlaybackCaptioning组件用于字幕的字体？

2 个答案: