public class SubtitleActivity extends Activity implements View.OnClickListener,OnTouchListener{
	private VideoView videoView ;
	TextView tvSrt,mCurrentTime,mTotalTime,resolution_switch,mediacontroller_file_name;
	ImageView mediacontroller_play_pause,switch_screen;
	private SeekBar progress_seekbar;
	private AudioManager mAM;
	private long totalDuration;
	private boolean mShowing = true,mDragging,isResolution;
	private static final int PARSE_SRT = 0;
	private static final int FADE_OUT = 1;
	private static final int SHOW_PROGRESS = 2;
	private static final int CHANGE_VIDEOVIEW_BG = 3;
	private static final int SCREEN_ORIENTATION_USER = 4;
	private static final int sDefaultTimeout = 3000;
	private RelativeLayout videoview_layout,mMediaController;
	private ListView resolution_listview;
	private boolean isPortraint = true;
	private static int LockScreen = -1;// 用于记录是否关闭屏幕旋转，0为关闭1为开启
	private int screenWidth,videoViewHeight;
	List<VideoPathObject> videopathList=new ArrayList<VideoPathObject>();
	Handler mHandler=new Handler(){
		public void handleMessage(Message msg){
			long pos;
			switch (msg.what) {
				case PARSE_SRT:
					SrtParser.showSRT(videoView,tvSrt) ;
				//每隔500ms执行一次showSRT()，根据时间匹配显示哪句字幕
					mHandler.sendEmptyMessageDelayed(0,500);
					break;
				case FADE_OUT:
					showOrHideController();
					break;
				case SHOW_PROGRESS:
					pos = setControllerProgress();
					if (!mDragging && mShowing) {
						msg = obtainMessage(SHOW_PROGRESS);
					sendMessageDelayed(msg,1000 - (pos % 1000));
					}
					break;
				case CHANGE_VIDEOVIEW_BG:
					videoView.setBackgroundColor(0x00000000);
					break;
			}
		}
	};
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_subtitle);
		videoView = (VideoView)this.findViewById(R.id.videoView );
		mAM = (AudioManager) getSystemService(Context.AUdio_SERVICE);
		screenWidth = APPApplication.screenWidth;
		videoViewHeight = screenWidth * 9 / 16;
		tvSrt = (TextView)findViewById(R.id.srt);//项目中显示字幕的控件
	mediacontroller_file_name= (TextView)findViewById(R.id.mediacontroller_file_name);
//		String[]splitStr=Constant.videoUrl1.split("/");
//		mediacontroller_file_name.setText(splitStr[splitStr.length-1]);
		mTotalTime = (TextView) findViewById(R.id.mediacontroller_time_total);
		mCurrentTime = (TextView) findViewById(R.id.mediacontroller_time_current);
		resolution_switch = (TextView) findViewById(R.id.resolution_switch);
	mediacontroller_play_pause = (ImageView) findViewById(R.id.mediacontroller_play_pause);
		switch_screen = (ImageView) findViewById(R.id.switch_screen);
		videoview_layout = (RelativeLayout) findViewById(R.id.videoview_layout);
		mediacontroller_play_pause.setonClickListener(this);
		progress_seekbar = (SeekBar) findViewById(R.id.mediacontroller_seekbar);
		videoview_layout = (RelativeLayout) findViewById(R.id.videoview_layout);
		mMediaController = (RelativeLayout) findViewById(R.id.media_controller);
		resolution_listview = (ListView) findViewById(R.id.resolution_listview);
		resolution_switch.setonClickListener(this);
		videoView.setonTouchListener(this);
		progress_seekbar.setonSeekBarchangelistener(mSeekListener);
		LayoutParams params = new RelativeLayout.LayoutParams(
				LayoutParams.MATCH_PARENT,videoViewHeight);
		videoview_layout.setLayoutParams(params);
		try {
	// 1代表开启自动旋转true，0代表未开启自动旋转false
	// Settings.System.getInt(mContext.getContentResolver(),Settings.System.ACCELEROMETER_ROTATION,0);
		LockScreen = Settings.System.getInt(getContentResolver(),Settings.System.ACCELEROMETER_ROTATION);
		} catch (SettingNotFoundException e) {
			// Todo Auto-generated catch block
			e.printstacktrace();
		}
//		String rawUri = "android.resource://" + getPackageName() + "/" + R.raw.renwei;
		Uri uri = Uri.parse(Constant.videoUrl1);
		//设置视频控制器
// videoView.setMediaController(new MediaController(this));
		//播放完成回调
		videoView.setonCompletionListener( new MyPlayerOnCompletionListener());
		videoView.setonPreparedListener(new OnPreparedListener() {
			//@Override
			public void onPrepared(MediaPlayer mp) {
				totalDuration=videoView.getDuration();
				if (mTotalTime != null)
			mTotalTime.setText("/"+generateTime(totalDuration));
			}
		});
		//设置视频路径
		videoView.setVideoURI(uri);
		//开始播放视频
		videoView.start();
		SrtParser.parseSrt(this);
		SrtParser.showSRT(videoView,tvSrt) ;
		mHandler.sendEmptyMessageDelayed(0,500);
		initVideoResolution();
	}
	private void initVideoResolution(){
		VideoPathObject object1=new VideoPathObject();
		object1.videoStatus="超清";
		videopathList.add(object1);
		VideoPathObject object2=new VideoPathObject();
		object2.videoStatus="高清";
		videopathList.add(object2);
		VideoPathObject object3=new VideoPathObject();
		object3.videoStatus="标清";
		videopathList.add(object3);
		switchResolution(videopathList);
	}
	class MyPlayerOnCompletionListener implements MediaPlayer.OnCompletionListener {
		@Override
		public void onCompletion(MediaPlayer mp) {
	Toast.makeText( SubtitleActivity.this,"播放完成了",Toast.LENGTH_SHORT).show();
		}
	}
	private OnSeekBarchangelistener mSeekListener = new OnSeekBarchangelistener() {
		public void onStartTrackingTouch(SeekBar bar) {
			mDragging = true;
			mHandler.removeMessages(SHOW_PROGRESS);
			mAM.setStreamMute(AudioManager.STREAM_MUSIC,true);
		}
		public void onProgressChanged(SeekBar bar,int progress,boolean fromuser) {
			if (!fromuser)
				return;
			int newposition = (int)(totalDuration * progress) / 1000;
			String time = generateTime(newposition);
			videoView.seekTo(newposition);
			mCurrentTime.setText(time);
		}
		public void onStopTrackingTouch(SeekBar bar) {
			videoView.seekTo(((int)totalDuration * bar.getProgress()) / 1000);
			hideMediaController(sDefaultTimeout);
			mAM.setStreamMute(AudioManager.STREAM_MUSIC,false);
			mDragging = false;
			mHandler.sendEmptyMessageDelayed(SHOW_PROGRESS,1000);
		}
	};
	private void switchResolution(final List<VideoPathObject> videopathList) {
		resolution_switch
	.setText(videopathList.get(videopathList.size() - 1).videoStatus);
		mediacontroller_play_pause.setimageResource(R.drawable.player_play);
		final ResolutionAdapter adapter = new ResolutionAdapter(videopathList,SubtitleActivity.this);
		resolution_listview.setAdapter(adapter);
		resolution_listview
		.setonItemClickListener(new AdapterView.OnItemClickListener() {
		@Override
			public void onItemClick(AdapterView<?> arg0,View arg1,int position,long arg3) {
				// Todo Auto-generated method stub
//				// currentPosition = videoView.getCurrentPosition();
//				currentPosition = videoView.getCurrentPosition();
//				Log.d("gaolei","currentPosition---------1------"
//								+ currentPosition);
				VideoPathObject pathObject = videopathList
								.get(position);
////				playVideo(pathObject.videoUrl);
//				adapter.changePosition(position);
				resolution_switch.setText(pathObject.videoStatus);
				resolution_listview.setVisibility(View.GONE);
					}
				});
	}
	public void showOrHideController() {
		if (mShowing) {
			mHandler.removeMessages(SHOW_PROGRESS);
			mHandler.removeMessages(FADE_OUT);
			mMediaController.setVisibility(View.GONE);
			resolution_listview.setVisibility(View.GONE);
			mShowing = false;
		} else {
			mHandler.sendEmptyMessage(SHOW_PROGRESS);
			mMediaController.setVisibility(View.VISIBLE);
			hideMediaController(sDefaultTimeout);
			mShowing = true;
		}
	}
	public void hideMediaController(int sDefaultTimeout) {
		mHandler.sendEmptyMessageDelayed(FADE_OUT,sDefaultTimeout);
	}
	private long setControllerProgress() {
		if (videoView == null || mDragging)
			return 0;
		int position = videoView.getCurrentPosition();
		if (progress_seekbar != null) {
			if (totalDuration > 0) {
				long pos = 1000L * position / totalDuration;
				// Log.d("gaolei","progress--------------" + pos);
				progress_seekbar.setProgress((int) pos);
			}
			int percent = videoView.getBufferPercentage();
			progress_seekbar.setSecondaryProgress(percent * 10);
		}
		if (mCurrentTime != null)
			mCurrentTime.setText(generateTime(position));
		return position;
	}
	private static String generateTime(long position) {
		int totalSeconds = (int) (position / 1000);
		int seconds = totalSeconds % 60;
		int minutes = (totalSeconds / 60) % 60;
		int hours = totalSeconds / 3600;
		if (hours > 0) {
			return String.format(Locale.US,"%02d:%02d:%02d",hours,minutes,seconds).toString();
		} else {
			return String.format(Locale.US,"%02d:%02d",seconds)
					.toString();
		}
	}
	private void updatePausePlay() {
		if (videoView.isPlaying()) {
			videoView.pause();
			mediacontroller_play_pause
					.setimageResource(R.drawable.player_pause);
		} else {
			videoView.start();
			mediacontroller_play_pause.setimageResource(R.drawable.player_play);
		}
	}
	public void showResolution(View view) {
		if (!isResolution) {
			resolution_listview.setVisibility(View.VISIBLE);
			isResolution = true;
		} else {
			resolution_listview.setVisibility(View.GONE);
			isResolution = false;
		}
	}
	public void onConfigurationChanged(Configuration newConfig) {
		super.onConfigurationChanged(newConfig);
		if (newConfig.orientation == Configuration.ORIENTATION_LANDSCAPE) {
			changetoFullScreen();
			Log.d("gaolei","ORIENTATION_LANDSCAPE-------------");
		}
		if (newConfig.orientation == Configuration.ORIENTATION_PORTRAIT) {
			changetoSmallScreen();
			Log.d("gaolei","ORIENTATION_PORTRAIT-------------");
		}
	}
	public void switchScreen(View view) {
		if (isPortraint) {
			handToFullScreen();
		} else {
			handToSmallScreen();
		}
	}
	public void handToSmallScreen() {
		setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_SENSOR_PORTRAIT);
		changetoSmallScreen();
		/**
		 * 这里点击按钮转屏，用户5秒内不转屏幕，将自动识别当前屏幕方向
		 */
		autoSwitchScreenorientation();
	}
	public void handToFullScreen() {
		setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_SENSOR_LANDSCAPE);
		changetoFullScreen();
		autoSwitchScreenorientation();
	}
	private void changetoFullScreen() {
		isPortraint = false;
		LayoutParams params = new RelativeLayout.LayoutParams(
				LayoutParams.MATCH_PARENT,APPApplication.screenWidth);
		videoview_layout.setLayoutParams(params);
		videoView.setLayoutParams(params);
		WindowManager.LayoutParams windowparams = getwindow().getAttributes();
		windowparams.flags |= WindowManager.LayoutParams.FLAG_FULLSCREEN;
		getwindow().setAttributes(windowparams);
		getwindow().addFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);
		switch_screen.setimageResource(R.drawable.player_switch_small);
	}
	private void changetoSmallScreen() {
		isPortraint = true;
		LayoutParams params = new RelativeLayout.LayoutParams(
				LayoutParams.MATCH_PARENT,videoViewHeight);
		videoview_layout.setLayoutParams(params);
		videoView.setLayoutParams(params);
		WindowManager.LayoutParams windowparams = getwindow().getAttributes();
		windowparams.flags &= (~WindowManager.LayoutParams.FLAG_FULLSCREEN);
		getwindow().setAttributes(windowparams);
		getwindow()
				.clearFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);
		switch_screen.setimageResource(R.drawable.player_switch_big);
	}
	public void autoSwitchScreenorientation() {
//		手动旋转屏幕，5s后会执行感应的方向
		new Timer().schedule(new TimerTask() {
			@Override
			public void run() {
			// Todo Auto-generated method stub
			setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_FULL_SENSOR);
			Log.d("gaolei","SCREEN_ORIENTATION_FULL_SENSOR");				}
		},5000);
	}
	@Override
	public boolean onTouch(View v,MotionEvent event) {
		// Todo Auto-generated method stub
		switch (event.getAction()) {
			case MotionEvent.ACTION_DOWN: {
				showOrHideController();
				break;
			}
		}
		return false;
	}
	@Override
	public void onClick(View view) {
		// Todo Auto-generated method stub
		switch(view.getId()){
			case R.id.mediacontroller_play_pause:
				Log.d("gaolei","mediacontroller_play_pause");
				updatePausePlay();
				break;
			case R.id.resolution_switch:
				resolution_listview.setVisibility(View.VISIBLE);
				break;
		}
	}
	public void jumpToMain(View view){
		startActivity(new Intent(this,MainActivity.class));
	}
	public void onRestart(){
		super.onRestart();
		videoView.start();
		mediacontroller_play_pause.setimageResource(R.drawable.player_play);
	}
	public void onStop(){
		super.onStop();
		videoView.pause();
		mediacontroller_play_pause.setimageResource(R.drawable.player_pause);
	}
}

public class SrtParser {
 public static ArrayList<SRT>srtList;
 public static int lastEndTime;
 /**
 * 解析SRT字幕文件
 * 字幕路径
 */
 public static void parseSrt(Context context) {
 InputStream inputStream = null;
 try {
//  inputStream=context.getResources().openRawResource(R.raw.renwei2);
  inputStream = new FileInputStream(Constant.srtUrl1);
  // Todo Auto-generated catch block
  BufferedReader br = new BufferedReader(new InputStreamReader(
   inputStream,"GB2312"));
  String line = null;
  srtList = new ArrayList<SRT>();
  StringBuffer sb = new StringBuffer();
  while ((line = br.readLine()) != null) {
  // Log.d("gaolei","br.readLine()-----------"+br.readLine());
  if (!line.equals("")) {
   Log.d("gaolei","line-------------------"+ line);
   sb.append(line).append("@");
   continue;
  }
  Log.d("gaolei","sb.toString()-----------"+sb.toString());
  String[] parseStrs = sb.toString().split("@");
  // 该if为了适应一开始就有空行以及其他不符格式的空行情况
  if (parseStrs.length < 3) {
   sb.delete(0,sb.length());// 清空，否则影响下一个字幕元素的解析</i>
   continue;
  }
  SRT srt = new SRT();
  // 解析开始和结束时间
  String timetotime = parseStrs[1];
  int begin_hour = Integer.parseInt(timetotime.substring(0,2));
  int begin_mintue = Integer.parseInt(timetotime.substring(3,5));
  int begin_scend = Integer.parseInt(timetotime.substring(6,8));
  int begin_milli = Integer.parseInt(timetotime.substring(9,12));
  int beginTime = (begin_hour * 3600 + begin_mintue * 60 + begin_scend)
   * 1000 + begin_milli;
  int end_hour = Integer.parseInt(timetotime.substring(17,19));
  int end_mintue = Integer.parseInt(timetotime.substring(20,22));
  int end_scend = Integer.parseInt(timetotime.substring(23,25));
  int end_milli = Integer.parseInt(timetotime.substring(26,29));
  int endTime = (end_hour * 3600 + end_mintue * 60 + end_scend)
   * 1000 + end_milli;
  System.out.println("开始:" + begin_hour + ":" + begin_mintue +
   ":"
   + begin_scend + ":" + begin_milli + "=" + beginTime
   + "ms");
  System.out.println("结束:" + end_hour + ":" + end_mintue + ":"
   + end_scend + ":" + end_milli + "=" + endTime + "ms");
  // 解析字幕文字
  String srtBody = "";
  // 可能1句字幕，也可能2句及以上。
  for (int i = 2; i < parseStrs.length; i++) {
   srtBody += parseStrs[i]+ "\n";
  }
  // 删除最后一个"\n"
  srtBody = srtBody.substring(0,srtBody.length() - 1);
  // 设置SRT
  srt.setBeginTime(beginTime);
  srt.setEndTime(endTime);
  srt.setSrtBody(new String(srtBody.getBytes(),"UTF-8"));
  srtList.add(srt);
  sb.delete(0,sb.length());// 清空，否则影响下一个字幕元素的解析
  }
  lastEndTime=srtList.get(srtList.size()-1).getEndTime();
  br.close();
 } catch (IOException e) {
  // Todo Auto-generated catch block
  e.printstacktrace();
 }
 //每隔500ms执行一次()取
 }
 public static void showSRT(VideoView videoView,TextView tvSrt) {
// 	Log.d("gaolei","srt_map.size()--------------"+srt_map.size());
 int currentPosition = videoView.getCurrentPosition();//vv是VideoView播放器
 if(currentPosition>lastEndTime){
  tvSrt.setVisibility(View.GONE);
  return;
 }
 for(int i=0;i<srtList.size();i++){
  SRT srtbean =srtList.get(i);
  if (currentPosition > srtbean.getBeginTime()
   && currentPosition < srtbean.getEndTime()) {
  tvSrt.setText(srtbean.getSrtBody());
  //显示过的就删掉，提高查询效率
  srtList.remove(i);
  break;//找到后就没必要继续遍历下去，节约资源
  }
 }
 }
}

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onSaveInstanceState(Bundle outState) ：Activity 即将销毁时保存数据
onRestoreInstanceState(Bundle savedInstanceState) ： Activity 重建或者恢复时候取出数据

@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
if(newConfig.orientation == 1)//竖屏 
if(newConfig.orientation == 2)// 横屏
}

if (this.getResources().getConfiguration().orientation == Configuration.ORIENTATION_LANDSCAPE){
Log.i("info","landscape"); // 横屏
} else if(this.getResources().getConfiguration().orientation ==Configuration.ORIENTATION_PORTRAIT) {
Log.i("info","portrait"); // 竖屏
}