surfaceView+mediaplayer+seekBar+自定义视频时间监控
这些天一直都在写一个视频播放器，碰到了很多意想不到的问题，在这里，我把部分代码分享一下：
package com.xbys;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.HashMap;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.media.AudioManager;
import android.media.MediaPlayer;
import android.media.MediaPlayer.OnCompletionListener;
import android.media.MediaPlayer.OnPreparedListener;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.os.SystemClock;
import android.view.Choreographer;
import android.view.SurfaceHolder;
import android.view.SurfaceHolder.Callback;
import android.view.SurfaceView;
import android.view.View;
import android.view.ViewGroup;
import android.view.View.OnClickListener;
import android.view.ViewGroup.LayoutParams;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.Chronometer;
import android.widget.GridView;
import android.widget.ImageButton;
import android.widget.SeekBar;
import android.widget.SeekBar.OnSeekBarChangeListener;
import android.widget.SimpleAdapter;
import android.widget.TextView;
import android.widget.Toast;
import com.jeremyfeinstein.slidingmenu.lib.SlidingMenu;
import com.xbys.io.StreamTools;
import com.xbys.network.NetWorkType;
import com.xbys.timer.GetVideotime;
public class MainActivity extends Activity {
private GridView gridView;
String[] imageName = {"学习目标","知识内容","实践","知识结构","学习指南","练习","案例","常见问题"
};
int[] image = {R.drawable.xuexi3,R.drawable.xuexi1,R.drawable.xuexi2,R.drawable.xuexi3,
R.drawable.xuexi5,R.drawable.xuexi6,R.drawable.xuexi7,R.drawable.xuexi3,
};
private static final int CHANGE = 0;
private SlidingMenu menu;
private TextView tv_content = null ;
InputStream is;
String detail;
private SurfaceView sv;
private ImageButton video_play ;
private ImageButton video_screen;
MediaPlayer mediaPlayer;
private int currentPosition = 0 ;
private boolean isplay = true;
private PlayVideo playVideo;
private SeekBar seekBar;
private int max;
private int i = 1;
private int j = 1;
int second = 0;
int minute = 0;
private int flag1;
private int flag2;
private int progress;
private int firstFlag = 0;
private boolean isflag = true;
private int position3;
private boolean isPlaying = true;
private TextView timer_long;
private TextView play_timer;
@SuppressLint("NewApi")
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
seekBar = (SeekBar)findViewById(R.id.seekBar);
timer_long = (TextView) findViewById(R.id.timer_long);
play_timer = (TextView)findViewById(R.id.play_timer);
seekBar.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
// TODO Auto-generated method stub
progress = seekBar.getProgress();
isflag = false;
flag1 = progress / 1006;
firstFlag++;
if(firstFlag!=1){
j = 1;
second = 0;
minute = 0;
}
if(mediaPlayer!=null&&mediaPlayer.isPlaying()){
mediaPlayer.seekTo(progress);
}
}
@Override
public void onStartTrackingTouch(SeekBar arg0) {
// TODO Auto-generated method stub
}
@Override
public void onProgressChanged(SeekBar seekBar, final int flag, boolean arg2) {
// TODO Auto-generated method stub
if(isflag){
if (flag / 1006 == i) {
i++;
second++;
if (second == 60) {
minute++;
second = 0;
}
if(second<10){
play_timer.setText(minute + ":" +"0"+ second);
}else{
play_timer.setText(minute + ":" + second);
}
}
}else{
/**
* 控制进度条
*
*
*/
// 小于60s时
if (flag1 < 60) {
//second = flag1;
/* if (second < 10) {
play_timer.setText(minute + ":" + "0" + second);
} else {
play_timer.setText(minute + ":" + second);
}*/
if (flag/1006-flag1 == j) {
System.out.println("是否执行到这里====="+j);
System.out.println("是否执行到这里====="+second);
j++;
second = flag1+j;
if (second == 60) {
minute++;
second = 0;
}
if (second < 10) {
play_timer.setText(minute + ":" + "0" + second);
} else {
play_timer.setText(minute + ":" + second);
}
}
}
// 大于60s
if (flag1 >= 60) {
flag2 = flag1/60;
minute = flag2;
second = flag2%60;
if (second < 10) {
play_timer.setText(minute + ":" + "0" + second);
} else {
play_timer.setText(minute + ":" + second);
}
if (flag/1006-flag1 == j) {
j++;
second = second+j;
if (second == 60) {
minute++;
second = 0;
}
if (second < 10) {
play_timer.setText(minute + ":" + "0" + second);
} else {
play_timer.setText(minute + ":" + second);
}
}
}
/**
* 控制进度条结束
*/
}
if(flag<max&&flag>max-500){
i = 1;
second = 0;
minute = 0;
}
}
});
gridView = (GridView) findViewById(R.id.gridview);
video_play = (ImageButton) findViewById(R.id.video_play);
video_screen = (ImageButton)findViewById(R.id.screen);
video_play.setBackground(getResources().getDrawable(R.drawable.play));
video_play.setOnClickListener(new VideoPlayerListener());
sv = (SurfaceView) findViewById(R.id.sv);
sv.getHolder().setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
//回调方法
sv.getHolder().addCallback(new Callback(){
@Override
public void surfaceChanged(SurfaceHolder arg0, int arg1, int arg2,
int arg3) {
// TODO Auto-generated method stub
}
@Override
public void surfaceCreated(SurfaceHolder arg0) {
// TODO Auto-generated method stub
if(currentPosition>0){
new PlayVideo(currentPosition).start();
}
}
@Override
public void surfaceDestroyed(SurfaceHolder arg0) {
// TODO Auto-generated method stub
if(mediaPlayer!=null&&mediaPlayer.isPlaying()){
currentPosition = mediaPlayer.getCurrentPosition();
stop();
}
}}
);
//侧拉菜单
menu = new SlidingMenu(this);
menu.setMode(SlidingMenu.RIGHT);
menu.setTouchModeAbove(SlidingMenu.TOUCHMODE_FULLSCREEN);
menu.setShadowWidthRes(R.dimen.activity_horizontal_margin);
//menu.setShadowDrawable(R.drawable.yuefu);
menu.setBehindOffsetRes(R.dimen.activity_horizontal_margin);
menu.setFadeDegree(0.5f);
menu.attachToActivity(this, SlidingMenu.SLIDING_CONTENT);
menu.setMenu(R.layout.slidingmenu);
//将资源文件夹中的文本读到tv_content上
tv_content = (TextView) findViewById(R.id.tv_content);
//变换标题栏的背景
getActionBar().setBackgroundDrawable(this.getBaseContext().
getResources().getDrawable(R.drawable.skinpic_blue));
getActionBar().show();
ArrayList<HashMap<String, Object>> list=new ArrayList<HashMap<String,Object>>();
for(int i=0;i<8;i++)
{
HashMap<String, Object> map = new HashMap<String, Object>();
map.put("ItemImage", image[i]);
map.put("imageName", imageName[i]);
list.add(map);
}
SimpleAdapter adapter = new SimpleAdapter(this, list,R.layout.griview_item,
new String[]{"ItemImage","imageName"},
new int[]{R.id.gridview_imageview,R.id.gridview_textview});
gridView.setAdapter(adapter);
gridView.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int position,
long arg3) {
// TODO Auto-generated method stub
switch (position) {
case 0:
detail = StreamTools.getStream("resources/dbms.txt", MainActivity.this);
tv_content.setText(detail);
menu.showMenu();
break;
case 1:
detail = StreamTools.getStream("resources/content_1.txt", MainActivity.this);
tv_content.setText(detail);
menu.showMenu();
break;
case 2:
detail = StreamTools.getStream("resources/content_1.txt", MainActivity.this);
tv_content.setText(detail);
menu.showMenu();
break;
case 3:
detail = StreamTools.getStream("resources/content_1.txt", MainActivity.this);
tv_content.setText(detail);
menu.showMenu();
break;
case 4:
detail = StreamTools.getStream("resources/content_1.txt", MainActivity.this);
tv_content.setText(detail);
menu.showMenu();
break;
case 5:
detail = StreamTools.getStream("resources/content_1.txt", MainActivity.this);
tv_content.setText(detail);
menu.showMenu();
break;
case 6:
detail = StreamTools.getStream("resources/content_1.txt", MainActivity.this);
tv_content.setText(detail);
menu.showMenu();
break;
case 7:
detail = StreamTools.getStream("resources/content_1.txt", MainActivity.this);
tv_content.setText(detail);
menu.showMenu();
break;
default:
break;
}
}
});
}
class PlayVideo extends Thread{
int currentPosition;
public PlayVideo(int currentPosition) {
super();
this.currentPosition = currentPosition;
}
@Override
public void run() {
// TODO Auto-generated method stub
play(currentPosition);
super.run();
}
}
class VideoPlayerListener implements OnClickListener{
@SuppressWarnings("deprecation")
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
switch (v.getId()) {
case R.id.video_play:
new NetWorkType().isWifi(MainActivity.this);
if(isplay){
video_play.setBackground(getResources().getDrawable(R.drawable.pause));
new PlayVideo(currentPosition).start();
isplay = false;
}else{
pause();
video_play.setBackground(getResources().getDrawable(R.drawable.play));
isplay = true;
}
break;
/*case R.id.screen:
ViewGroup.LayoutParams lp = sv.getLayoutParams();
lp.height = LayoutParams.MATCH_PARENT;
lp.width = LayoutParams.MATCH_PARENT;
System.out.println(lp.width);
sv.setLayoutParams(lp);
break;*/
default:
break;
}
}
}
/**
* 播放视频
* @param currentPosition
*/
private void play(final int currentPosition2) {
String path = "http://192.168.194.51:8080/xbys/oppop.mp4";
try {
mediaPlayer = new MediaPlayer();
mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
mediaPlayer.setDisplay(sv.getHolder());
mediaPlayer.setDataSource(path);
mediaPlayer.prepareAsync();
// mediaPlayer.seekTo(currentPosition);
mediaPlayer.setOnPreparedListener(new OnPreparedListener() {
@Override
public void onPrepared(MediaPlayer mp) {
// TODO Auto-generated method stub
mediaPlayer.start();
mediaPlayer.seekTo(currentPosition2);
max = mediaPlayer.getDuration();
String timer = new GetVideotime().TimeLong(max);
timer_long.setText(timer);
new Thread(){
public void run() {
seekBar.setMax(max);
while(mediaPlayer!=null&&mediaPlayer.isPlaying()){
position3 = mediaPlayer.getCurrentPosition();
seekBar.setProgress(position3);
}
try {
Thread.sleep(500);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
};
}.start();
}
});
mediaPlayer.setOnCompletionListener(new OnCompletionListener() {
@Override
public void onCompletion(MediaPlayer arg0) {
// TODO Auto-generated method stub
mediaPlayer.seekTo(0);
video_play.setBackground(getResources().getDrawable(R.drawable.play));
seekBar.setProgress(0);
play_timer.setText(0+":"+"00");
//isplay = true;
}
});
} catch (Exception e) {
// TODO Auto-generated catch block
Toast.makeText(this, "播放失败", 0).show();
e.printStackTrace();
}
}
/**
* 停止播放音乐
*/
private void stop() {
// TODO Auto-generated method stub
if (mediaPlayer != null && mediaPlayer.isPlaying()) {
mediaPlayer.stop();
mediaPlayer.release();
mediaPlayer = null;
}
}
private void pause() {
// TODO Auto-generated method stub
if (mediaPlayer != null && mediaPlayer.isPlaying()) {
currentPosition = mediaPlayer.getCurrentPosition();
mediaPlayer.pause();
}
}
@Override
protected void onDestroy() {
// TODO Auto-generated method stub
stop();
super.onDestroy();
}
}
写的非常乱，但是基本能实现视频播放，如果其中有隐含的bug，希望大牛们能够指导我，我的功力尚浅！