Android音樂和視頻播放【附源碼】

重新學了Android，寫了一個mediaplayer播放的程序實現音樂的播放和視頻的播放，程序效果圖如圖：

完成的基本功能有：1,讀取音樂文件 2.播放音樂文件 3,讀取視頻文件4,播放視頻文件

主要程序源代碼：

1. package com.huangcheng.media;
3. import java.io.IOException;
4. import java.util.Timer;
5. import java.util.TimerTask;
7. import android.app.Activity;
8. import android.media.AudioManager;
9. import android.media.MediaPlayer;
10. import android.media.MediaPlayer.OnCompletionListener;
11. import android.os.Bundle;
12. import android.view.SurfaceHolder;
13. import android.view.SurfaceView;
14. import android.view.View;
15. import android.view.View.OnClickListener;
16. import android.widget.Button;
17. import android.widget.SeekBar;
18. import android.widget.SeekBar.OnSeekBarChangeListener;
19. import android.widget.Toast;
21. public class MediaDemoActivity extends Activity {
22. //控制音樂
23. private SeekBar seekbar_music;
24. private Button start_music_btn;
25. private Button stop_music_btn;
26. //控制視頻
27. private SeekBar seekbar_video;
28. private Button start_video_btn;
29. private Button stop_video_btn;
30. private SurfaceView surfaceview_video;
31. private SurfaceHolder surfaceview_holder;
33. //播放器
34. private MediaPlayer media=null;
35. private MediaPlayer media_video=null;
36. private Timer timer;
37. private TimerTask timertask_music;
38. private TimerTask timertask_video;
40. //互斥量，seekbar拖動和Timer
41. private volatile boolean ischanging=false;
43. /** Called when the activity is first created. */
44. @Override
45. public void onCreate(Bundle savedInstanceState) {
46. super.onCreate(savedInstanceState);
47. setContentView(R.layout.main);
49. //控制media
50. media=new MediaPlayer();
51. media_video=new MediaPlayer();
52. media.setOnCompletionListener(new OnCompletionListener() {
54. @Override
55. public void onCompletion(MediaPlayer arg0) {
56. // TODO Auto-generated method stub
57. Toast.makeText(MediaDemoActivity.this, "播放結束", Toast.LENGTH_SHORT).show();
58. media.release();
59. }
60. });
61. media_video.setOnCompletionListener(new OnCompletionListener() {
63. @Override
64. public void onCompletion(MediaPlayer arg0) {
65. // TODO Auto-generated method stub
66. Toast.makeText(MediaDemoActivity.this, "播放結束", Toast.LENGTH_SHORT).show();
67. media_video.release();
68. }
69. });
70. //Timer記錄播放時刻
71. timer=new Timer();
72. timertask_music=new TimerTask() {
74. @Override
75. public void run() {
76. // TODO Auto-generated method stub
77. //正在拖動seekbar,停止Timer
78. if(ischanging==true){
79. return;
80. }
81. else{
82. seekbar_music.setProgress(media.getCurrentPosition());
83. }
84. }
85. };
86. timertask_video=new TimerTask() {
88. @Override
89. public void run() {
90. // TODO Auto-generated method stub
91. //正在拖動seekbar,停止Timer
92. if(ischanging==true){
93. return;
94. }
95. else{
96. seekbar_video.setProgress(media_video.getCurrentPosition());
97. }
98. }
99. };
101. timer.schedule(timertask_music, 0, 10);//開始記錄，每10ms記錄一次
102. timer.schedule(timertask_video, 0, 10);//開始記錄，每10ms記錄一次
103. //更新控件
104. seekbar_music=(SeekBar)findViewById(R.id.seekbar_music);
105. seekbar_video=(SeekBar)findViewById(R.id.seekbar_video);
106. start_music_btn=(Button)findViewById(R.id.start_music_btn);
107. stop_music_btn=(Button)findViewById(R.id.stop_music_btn);
108. start_video_btn=(Button)findViewById(R.id.start_video_btn);
109. stop_video_btn=(Button)findViewById(R.id.stop_video_btn);
110. surfaceview_video=(SurfaceView)findViewById(R.id.surfaceview_video);
111. surfaceview_holder=surfaceview_video.getHolder();
112. surfaceview_holder.setFixedSize(100, 100);
113. surfaceview_holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
115. seekbar_music.setEnabled(false);
116. seekbar_video.setEnabled(false);
117. // 添加處理seekbar事件
118. seekbar_music.setOnSeekBarChangeListener(new SeekbarmusicEvent());
119. seekbar_video.setOnSeekBarChangeListener(new SeekbarvideoEvent());
120. //添加music按鍵處理
121. start_music_btn.setOnClickListener(new OnClickListener() {
123. @Override
124. public void onClick(View arg0) {
125. // TODO Auto-generated method stub
126. media.reset();
127. media=MediaPlayer.create(MediaDemoActivity.this, R.raw.m);
128. seekbar_music.setMax(media.getDuration());
129. try {
130. media.prepare();
131. } catch (IllegalStateException e) {
132. // TODO Auto-generated catch block
133. e.printStackTrace();
134. } catch (IOException e) {
135. // TODO Auto-generated catch block
136. e.printStackTrace();
137. }
138. media.start();
139. seekbar_music.setEnabled(true);
140. }
141. });
142. stop_music_btn.setOnClickListener(new OnClickListener() {
144. @Override
145. public void onClick(View arg0) {
146. // TODO Auto-generated method stub
147. media.stop();
148. seekbar_music.setEnabled(false);
149. }
150. });
151. start_video_btn.setOnClickListener(new OnClickListener() {
153. @Override
154. public void onClick(View arg0) {
155. // TODO Auto-generated method stub
156. media_video.reset();
157. media_video=MediaPlayer.create(MediaDemoActivity.this, R.raw.v);
158. seekbar_video.setMax(media_video.getDuration());
159. media_video.setAudioStreamType(AudioManager.STREAM_MUSIC);
160. media_video.setDisplay(surfaceview_holder);
161. try {
162. media_video.prepare();
163. } catch (IllegalStateException e) {
164. // TODO Auto-generated catch block
165. e.printStackTrace();
166. } catch (IOException e) {
167. // TODO Auto-generated catch block
168. e.printStackTrace();
169. }
170. media_video.start();
171. seekbar_video.setEnabled(true);
172. }
173. });
174. stop_video_btn.setOnClickListener(new OnClickListener() {
176. @Override
177. public void onClick(View arg0) {
178. // TODO Auto-generated method stub
179. media_video.stop();
180. seekbar_video.setEnabled(false);
181. }
182. });
184. }
185. //處理拖動seekbarmusic事件
186. class SeekbarmusicEvent implements SeekBar.OnSeekBarChangeListener{
187. @Override
188. public void onProgressChanged(SeekBar seekBar, int progress,
189. boolean fromUser) {
190. // TODO Auto-generated method stub
192. }
193. @Override
194. public void onStartTrackingTouch(SeekBar seekBar) {
195. // TODO Auto-generated method stub
196. ischanging=true;//停止timer
197. }
198. @Override
199. public void onStopTrackingTouch(SeekBar seekBar) {
200. // TODO Auto-generated method stub
201. media.seekTo(seekBar.getProgress());
202. ischanging=false;//開啟timer
203. }
204. }
205. class SeekbarvideoEvent implements SeekBar.OnSeekBarChangeListener{
206. @Override
207. public void onProgressChanged(SeekBar seekBar, int progress,
208. boolean fromUser) {
209. // TODO Auto-generated method stub
211. }
212. @Override
213. public void onStartTrackingTouch(SeekBar seekBar) {
214. // TODO Auto-generated method stub
215. ischanging=true;//停止timer
216. }
217. @Override
218. public void onStopTrackingTouch(SeekBar seekBar) {
219. // TODO Auto-generated method stub
220. media_video.seekTo(seekBar.getProgress());
221. ischanging=false;//開啟timer
222. }
223. }
224. }