MediaController+VideoView

MediaController controller=new MediaController(this);
		 videoView=(VideoView)this.findViewById(R.id.videoView1);
		controller.setAnchorView(videoView);
		videoView.setMediaController(controller);
		System.out.println(Environment.getExternalStorageDirectory().getPath());
		System.out.println(Environment.getExternalStorageDirectory().getAbsolutePath());
		//获取SD卡 路径
		final File file=new File(Environment.getExternalStorageDirectory().getPath()+"/Samsung/Video/Hello.mp4");
		if (!file.exists()) {
			System.out.println("文件不存在");
		}else {
			System.out.println("文件存在");
		}

		this.findViewById(R.id.button1).setOnClickListener(new OnClickListener() {
			
			@Override
			public void onClick(View v) {
				// TODO Auto-generated method stub
				System.out.println(file.getAbsolutePath());
				videoView.setVideoPath(Environment.getExternalStorageDirectory().getPath()+"/Samsung/Video/Hello.mp4");
//				videoView.setVideoPath(file.getAbsolutePath());
				videoView.start();
			}
		});

注意：

1.SD卡路径问题，最好使用Environment.getExternalStorageDirectory().getAbsolutePath()  因为有的手机的sd卡路径并不是“/mnt/sdcard/”

2.

videoView.setVideoPath(Environment.getExternalStorageDirectory().getPath()+"/Samsung/Video/Hello.mp4");

 手动指定路径不行，找不到资源的话，就改用

videoView.setVideoPath(file.getAbsolutePath());

有时路径问题，太变态