.我的目标api版本小于14,所以相信我不能使用允许头文件的新方法.如何在MediaPlayer请求中包含标题(特别是认证标头),并且仍然支持较旧的Android设备?
我的代码看起来像:
mediaPlayer.setDataSource(url); mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC); mediaPlayer.prepareAsync();
背景:
方法 setDataSource(Context context, Uri uri, Map<String, String> headers) 已经被包括在SDK(标记为@hide)很长一段时间(至少从Froyo 2.2.x,API 8级),请查看更改历史记录:
API Extension: Support for optionally specifying a map of extra request headers when specifying the uri of media data to be played
自从Ice Cream Sandwich 4.0.x,API Level 14:
Unhide MediaPlayer’s setDataSource method that takes optional http headers to be passed to the server
解决方法:
在Ice Cream Sandwich 4.0.x,API Level 14之前,我们可以使用反射来调用这个hide API:
Uri uri = Uri.parse(path); Map<String, String> headers = new HashMap<String, String>(); headers.put("key1", "value1"); headers.put("key2", "value2"); mMediaPlayer = new MediaPlayer(); // Use java reflection call the hide API: Method method = mMediaPlayer.getClass().getMethod("setDataSource", new Class[] { Context.class, Uri.class, Map.class }); method.invoke(mMediaPlayer, new Object[] {this, uri, headers}); mMediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC); mMediaPlayer.prepareAsync(); ... ...
http://stackoverflow.com/questions/8959300/how-do-i-include-http-headers-with-mediaplayer-setdatasource