• 继承SurfaceView实现视频播放


    代码如下,多多交流。

      1 package com.farben.ams.widget;
    2
    3 import java.io.IOException;
    4
    5 import android.content.Context;
    6 import android.graphics.PixelFormat;
    7 import android.media.AudioManager;
    8 import android.media.MediaPlayer;
    9 import android.media.MediaPlayer.OnCompletionListener;
    10 import android.media.MediaPlayer.OnErrorListener;
    11 import android.media.MediaPlayer.OnSeekCompleteListener;
    12 import android.util.Log;
    13 import android.view.SurfaceHolder;
    14 import android.view.SurfaceHolder.Callback;
    15 import android.view.SurfaceView;
    16
    17 /**
    18 * 视频播放
    19 * @package com.farben.ams.widget
    20 * @author Keynes Cao
    21 * @create 2011-12-5 下午1:44:45 *
    22 */
    23 public class VideoSurfaceView extends SurfaceView implements Callback {
    24
    25 private SurfaceHolder mSurfaceHolder = null;
    26 //视频地址
    27 private String path = null;
    28 private MediaPlayer mMediaPlayer = null;
    29 //播放次数
    30 private int frequency = 0;
    31 private static int count = 0;
    32 //是否循环播放
    33 private boolean loop = true;
    34 public VideoSurfaceView(Context context) {
    35 super(context);
    36 init();
    37 }
    38 /**
    39 * @param context <see>容器</see>
    40 * @param path <see>视频地址</see>
    41 * <li>默认循环播放</li>
    42 */
    43 public VideoSurfaceView(Context context,String path) {
    44 this(context);
    45 this.path = path;
    46 }
    47 /**
    48 * @param context <see>容器</see>
    49 * @param path <see>视频地址</see>
    50 * @param frequency <see>播放次数</see>
    51 */
    52 public VideoSurfaceView(Context context,String path,int frequency) {
    53 this(context);
    54 this.path = path;
    55 this.frequency = frequency;
    56 this.loop = false;
    57
    58 }
    59
    60 public void surfaceChanged(SurfaceHolder arg0, int arg1, int arg2, int arg3) {}
    61
    62 public void surfaceCreated(SurfaceHolder arg0) {
    63 try {
    64 play();
    65 } catch (IOException e) {
    66 Log.e("VideoSurfaceView",e.getMessage()+"\n"+e);
    67 }
    68 }
    69
    70 public void surfaceDestroyed(SurfaceHolder arg0) {
    71 path = null;
    72 if(mMediaPlayer!=null){
    73 if(mMediaPlayer.isPlaying()){
    74 mMediaPlayer.stop();
    75 mMediaPlayer.release();
    76 mMediaPlayer = null;
    77 Log.d("VideoSurfaceView","退出视频播放");
    78 }
    79 }
    80 }
    81
    82 /**
    83 * 播放
    84 */
    85 private void play()throws IOException{
    86 if(mMediaPlayer.isPlaying()){
    87 mMediaPlayer.reset();
    88 }
    89 //设置音乐流
    90 mMediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
    91 //设置播放容器
    92 mMediaPlayer.setDisplay(mSurfaceHolder);
    93 //设置播入文件地址
    94 mMediaPlayer.setDataSource(path);
    95 //播放准备
    96 mMediaPlayer.prepare();
    97 //开始播放
    98 mMediaPlayer.start();
    99 }
    100
    101 /**
    102 *初使化
    103 */
    104 private void init(){
    105 mSurfaceHolder = getHolder();
    106 mSurfaceHolder.addCallback(this);
    107 mSurfaceHolder.setFixedSize(getWidth(), getHeight());
    108 mSurfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
    109 mMediaPlayer = new MediaPlayer();
    110 mMediaPlayer.setLooping(isLoop());
    111 //事件
    112 mMediaPlayer.setOnSeekCompleteListener(new OnSeekCompleteListener() {
    113 public void onSeekComplete(MediaPlayer arg0) {
    114 count++;//播放了多少次
    115 Log.d("VideoSurfaceView","已经播放了"+count+"次.");
    116 if(!isLoop()){
    117 if(getFrequency()>0){//预设播放次数是否大于0
    118 if(count>=getFrequency()){//如果已经播放的次数大于等于预设次数则退出;
    119 setLoop(false);
    120 if(mMediaPlayer!=null){
    121 //回收资源
    122 mMediaPlayer.release();
    123 mMediaPlayer = null;
    124 Log.d("VideoSurfaceView","已经播入了"+count+"次.退出.");
    125 }
    126 }
    127 }else{
    128 try {
    129 play();
    130 } catch (IOException e) {
    131 Log.e("TextSurfaceView",e.getMessage()+"\n"+e);
    132 }
    133 }
    134 }
    135 }
    136 });
    137 mMediaPlayer.setOnErrorListener(new OnErrorListener() {
    138 public boolean onError(MediaPlayer arg0, int arg1, int arg2) {
    139 mMediaPlayer.reset();
    140 Log.d("VideoSurfaceView","播放中发生错误!");
    141 return true;
    142 }
    143 });
    144 }
    145 /**********************************set get method********************************************/
    146 public String getPath() {
    147 return path;
    148 }
    149 public void setPath(String path) {
    150 this.path = path;
    151 }
    152 public int getFrequency() {
    153 return frequency;
    154 }
    155 public void setFrequency(int frequency) {
    156 this.frequency = frequency;
    157 }
    158 public boolean isLoop() {
    159 return loop;
    160 }
    161 /**
    162 * @param isLoop
    163 * <see>默认为循环播放</see>
    164 */
    165 public void setLoop(boolean isLoop) {
    166 this.loop = isLoop;
    167 }
    168
    169
    170 }
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  • 原文地址:https://www.cnblogs.com/coacaio/p/2284002.html
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