使用VideoView和MediaController进行视频播放

/**
 * 视频播放的activity<br>
 * 使用方法：<br>
 * 1、AndroidManifest.xml中添加此activity<br>
 * 2、Intent中存入待播放视频的URL，支持本地和网络<br>
 * 3、启动这个activity<br>
 * <br>
 * example：<br>
 * String url = "play url";<br>
 * Intent intent = new Intent();<br>
 * intent.setClass(this, VideoPlayActivity.class);<br>
 * intent.putExtra(VideoPlayActivity.KEY_URL, url);<br>
 * startActivity(intent);<br>
 * 
 * @author ttworking
 * 
 */
public class VideoPlayActivity extends Activity implements OnPreparedListener, OnErrorListener {
	public static final String KEY_URL = "view_url";

	private static final String TAG = "VideoPlayActivity";
	private static final int PLAY_RETURN = 2 * 1000; // 2 seconds
	private static final String KEY_PLAY_POSITON = "paly_position";
	private static final String TOAST_ERROR_URL = "Paly url is null, please check parameter:" + KEY_URL;
	private static final String TOAST_ERROR_PLAY = "Paly error, please check url exist!";
	private static final String DIALOG_TITILE = "奋力加载中，请稍后...";

	private static String url;

	private ProgressDialog progressDialog;
	private MediaController mc;
	private VideoView videoView;
	private LinearLayout llMain;
	private LayoutParams params = new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);

		url = getIntent().getStringExtra(KEY_URL);
		if (url == null && savedInstanceState != null) {
			url = savedInstanceState.getString(KEY_URL);
		}

		if (url == null) {
			Toast.makeText(getApplicationContext(), TOAST_ERROR_URL, Toast.LENGTH_LONG).show();
			finish();
			return;
		}

		setTheme(android.R.style.Theme_NoTitleBar_Fullscreen);

		videoView = new VideoView(this);
		videoView.setVideoURI(Uri.parse(url));
		videoView.requestFocus();
		videoView.setOnPreparedListener(this);
		videoView.setOnErrorListener(this);

		mc = new MediaController(this);
		mc.setAnchorView(videoView);
		mc.setKeepScreenOn(true);

		videoView.setMediaController(mc);

		llMain = new LinearLayout(this);
		llMain.setGravity(Gravity.CENTER_VERTICAL);
		llMain.setOrientation(LinearLayout.VERTICAL);
		llMain.setLayoutParams(params);

		llMain.addView(videoView, params);
		setContentView(llMain);

		initDialog();
	}

	@Override
	protected void onSaveInstanceState(Bundle outState) {
		super.onSaveInstanceState(outState);

		int palyPosition = videoView.getCurrentPosition();
		if (palyPosition > PLAY_RETURN) {
			palyPosition -= PLAY_RETURN;
		}
		outState.putInt(KEY_PLAY_POSITON, palyPosition);
		outState.putString(KEY_URL, url);
	}

	@Override
	protected void onRestoreInstanceState(Bundle savedInstanceState) {
		super.onRestoreInstanceState(savedInstanceState);

		videoView.seekTo(savedInstanceState.getInt(KEY_PLAY_POSITON));
	}

	@Override
	public void onPrepared(MediaPlayer mp) {
		progressDialog.cancel();

		videoView.start();
	}

	@Override
	public boolean onError(MediaPlayer mp, int what, int extra) {
		Log.d(TAG, "onError:" + url);

		Toast.makeText(getApplicationContext(), TOAST_ERROR_PLAY + "\n" + url, Toast.LENGTH_LONG).show();
		progressDialog.cancel();
		finish();

		return true;
	}

	private void initDialog() {
		progressDialog = new ProgressDialog(this);
		progressDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
		progressDialog.setMessage(DIALOG_TITILE);
		progressDialog.setCancelable(false);
		progressDialog.show();
	}
}