private void playAudio(String audioPath){
Intent intent = new Intent();
intent.setAction(android.content.Intent.ACTION_VIEW);
intent.setDataAndType(Uri.parse(audioPath), "audio/mp3");
intent.setComponent(new ComponentName("com.android.music","com.android.music.MediaPlaybackActivity"));
startActivity(intent);

}

private void playAudio(String audioPath){
Intent intent = new Intent();
intent.setAction(android.content.Intent.ACTION_VIEW);
intent.setDataAndType(Uri.parse(audioPath), "audio/mp3");
intent.setComponent(new ComponentName("com.android.music","com.android.music.MediaPlaybackActivity"));
startActivity(intent);

}

或者

Intent it = new Intent(Intent.ACTION_VIEW);
it.setDataAndType(Uri.parse("/sdcard/111.mp3"), "audio/mp3");
startActivity(it);

Intent it = new Intent(Intent.ACTION_VIEW);
it.setDataAndType(Uri.parse("/sdcard/111.mp3"), "audio/mp3");
startActivity(it);

2、Android调用系统视频播放器

方法一；
private void playVideo(String videoPath){
Intent intent = new Intent(Intent.ACTION_VIEW);
String strend="";
if(videoPath.toLowerCase().endsWith(".mp4")){
strend="mp4";
}
else if(videoPath.toLowerCase().endsWith(".3gp")){
strend="3gp";
}
else if(videoPath.toLowerCase().endsWith(".mov")){
strend="mov";
}
else if(videoPath.toLowerCase().endsWith(".wmv")){
strend="wmv";
}

intent.setDataAndType(Uri.parse(videoPath), "video/"+strend);
startActivity(intent);
}

或者

Intent it = new Intent(Intent.ACTION_VIEW);
it.setDataAndType(Uri.parse("/sdcard/1122.mp4"), "video/mp4");
startActivity(it);

播放来自网络多媒体文件

String extension = MimeTypeMap.getFileExtensionFromUrl(url);
String mimeType = MimeTypeMap.getSingleton().getMimeTypeFromExtension(extension);
Intent mediaIntent = new Intent(Intent.ACTION_VIEW);
mediaIntent.setDataAndType(Uri.parse(url), mimeType);
startActivity(mediaIntent);

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