android视频播放器-源码

本文讲的是“android 视频播放器”，并附有播放器源代码

1．开发环境：

eclipse3.6

ADT-0.9.7

AVD1.6

2．程序运行效果

A．启动AVD(虚拟设备)在应用程序界面主界面，我们可以看到“艾文

播放器”

B．点击打开后，会播放默认的一个coco的广告

C．点击标题栏的按钮可以打开文件浏览器

D．点击视频文件，会提示使用的播放器

E．选择“艾文视频播放器”打开后，按ctrl+f12，切换到横屏，发现视

频并没有中断，而是继续播放

3．源码分析

A．图片都是网上找的，还有就是自己收藏的地方翻出来的，不多讲了。

B．布局文件

main.xml：期中包含一个videoview，用于播放视频图像titlebar.xml：主视图的标题栏布局，主要用于添加一个菜单按钮，点击后打开文件浏览器

myfile.xml:为文件浏览器布局

C．VideoPlay.java

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1.package com.bestaone;

2.

3.import android.app.Activity;

4.import android.content.Intent;

5.import https://www.360docs.net/doc/0f19406974.html,.Uri;

6.import android.os.Bundle;

7.import android.util.Log;

8.import android.view.View;

9.import android.view.View.OnClickListener;

10.import android.view.Window;

11.import android.view.WindowManager;

12.import android.widget.ImageButton;

13.import android.widget.MediaController;

14.import android.widget.TextView;

15.import android.widget.VideoView;

16.

17.public class VideoPlay extends Activity {

18.

19. private VideoView videoView;

20. private static int index = 0;

21.

22.@Override

23. public void onCreate(Bundle savedInstanceState) {

24. super.onCreate(savedInstanceState);

25. requestWindowFeature(Window.FEATURE_C USTOM_TITLE);

26. setContentView(https://www.360docs.net/doc/0f19406974.html,yout.main);

27. getWindow().setFlags(https://www.360docs.net/doc/0f19406974.html,youtParams.FLAG_FULLSCREEN, Windo

https://www.360docs.net/doc/0f19406974.html,youtParams.FLAG_FULLSCREEN);//

28. //设置标题栏的布局

29. getWindow().setFeatureInt(Window.FEATURE_C USTOM_TITLE, https://www.360docs.net/doc/0f19406974.html,yout.titlebar);

30. //这个空间暂时没用

31. final TextView titleTV = (TextView) findViewById(R.id.title);

32. titleTV.setText("");

33. ImageButton titleButton = (ImageButton) findViewById(R.id.titleButton);

34. //为按钮添加鼠标点击事件

35. titleButton.setOnClickListener(new OnClickListener() {

36.@Override

37. public void onClick(View v) {

38. Intent intent = new Intent();

39. intent.setClass(VideoPlay.this, MyFile.class);

40. //打开MyFile activity

41. startActivity(intent);

42. }

43. });

44. Intent intent = getIntent();

45. String value = intent.ge tDataString();

46. videoView = (VideoView) findViewById(R.id.VideoView01);

47. if(value==null){

48. //加载默认视频

49. videoView.setVideoURI(Uri.parse("android.resource://com.bestaone/" + R.draw

able.coco));

50. }else{

51. //通过文件浏览器传过来的视频路径，播放

52. videoView.setVideoPath(value);

53. }

54. videoView.setMediaController(new MediaController(VideoPlay.this));

55. videoView.requestFocus();

56. }

57.

58. //启动

59.@Override

60. protected void onStart() {

61. super.onStart();

62. Log.i("mp4", "@@@ on start");

63. }

64.

65.@Override

66. protected void onResume() {

67. super.onResume();

68. videoView.seekTo(index);

69. videoView.start();

70. Log.i("mp4", "@@@ on resume");

71. }

72.

73. //暂停

74.@Override

75. protected void onPause() {

76. super.onPause();

77. Log.i("mp4", "@@@ on pause");

78. }

79.

80. //停止

81.@Override

82. protected void onStop() {

83. super.onStop();

3.import java.io.File;

4.import java.util.ArrayList;

5.import java.util.List;

6.

7.import android.app.ListActivity;

8.import android.content.Intent;

9.import https://www.360docs.net/doc/0f19406974.html,.Uri;

10.import android.os.Bundle;

11.import android.view.KeyEvent;

12.import android.view.View;

13.import android.widget.AdapterView;

14.import android.widget.AdapterView.OnItemLongClickListener;

15.import android.widget.Button;

16.import android.widget.EditText;

17.import android.widget.ImageButton;

18.import android.widget.ListView;

19.import android.widget.TextView;

20.import android.widget.Toast;

21.

22.public class MyFile extends ListActivity implements OnItemLongClickListener {

23.

24. //支持的视频格式

25. private final String[][] FILE_MapTable = {

26.

27. // {后缀名， MI ME类型}

28. { ".3gp", "video/3gpp" },

29. { ".mov", "video/quicktime" },

30. { ".avi", "video/x-msvideo" },

31. { ".rmvb", "audio/x-pn-realaudio" },

32. { ".wmv", "audio/x-ms-wmv" }

33.

34. };

35.

36. private List items = null; // items：存放显示的名称

37. private List paths = null; // paths：存放文件路径

38. private List sizes = null; // sizes：文件大小

39. private String rootPath = "/"; // rootPath：起始文件夹

40. private TextView path_edit;

41. private ImageButton rb_qry;

42. private int isZoom = 0;

43. private int isOpen = 0;

44.

45.

46. /**

47. * 重写返回键功能:返回上一级文件夹

48. */

49.@Override

50. public boolean onKeyDown(int keyCode, KeyEvent event) {

51. // 是否触发按键为back键

52. if (keyCode == KeyEvent.KEYCODE_BACK) {

53. path_edit = (EditText) findViewById(R.id.path_edit);

54. File file = new File(pa th_edit.getText().toString());

55. if (rootPath.equals(path_edit.getText().toString())) {

56. return super.onKeyDown(keyCode, event);

57. } else {

58. getFileDir(file.getParent());

59. return true;

60. }

61. // 如果不是back键正常响应

62. } else {

63. return super.onKeyDown(keyCode, event);

64. }

65. }

66.

67.@Override

68. protected void onCreate(Bundle icicle) {

69. super.onCreate(icicle);

70. setContentView(https://www.360docs.net/doc/0f19406974.html,yout.myfile);

71.

72. path_edit = (EditText) findViewById(R.id.path_edit);

73. rb_qry = (ImageButton) findViewById(R.id.qry_button);

74. rb_qry.setOnClickListener(listener_qry);

75. getListView().setO nItemLongClickListener(this);

76. getFileDir(rootPath);

77. }

78.

79. Button.OnClickListener listener_qry = new Button.OnClickListener() {

80. public void onClick(View arg0) {

81. File file = new File(pa th_edit.getText().toString());

82. if (file.exists()) {

83. if (file.isFile()) {

84. openFile(file);

85. } else {

86. getFileDir(path_edit.getText().toString());

87. }

88. } else {

89. Toast.makeText(MyFile.this, "找不到该位置,请确定位置是否正确!",Toast.LENGTH

_SHORT).show();

90. }

91. }

92. };

93.

94. /**

95. * 设置ListI tem被点击时要做的动作

96. */

97.@Override

98. protected void onListItemClick(ListView l, View v, int position, long id) {

99. File file = new File(paths.get(position));

100. fileOrDirHandle(file);

101. }

102.

103.

104. /**

105. * 处理文件或者目录的方法

106. * @param file

107. * @param flag

108. */

109. private void fileOrDirHandle(final File file) {

110. if (file.isDirectory()) {

111. getFileDir(file.getPath());

112. } else {

113. openFile(file);

114. }

115. }

116.

117. /**

118. * 取得文件结构的方法

119. * @param filePath

120. */

121. private void getFileDir(String filePath) {

122. /* 设置目前所在路径 */

123. path_edit.setText(filePath);

124. items = new ArrayList();

125. paths = new ArrayList();

126. sizes = new ArrayList();

127. File f = new File(filePath);

128. File[] files = f.listFiles();

129. if (files != null) {

130. /* 将所有文件添加ArrayList中 */

131. for (int i = 0; i < files.length; i++) {

132. if (files[i].isDirectory()) {

133. items.add(files[i].getName());

134. paths.add(files[i].getPath());

135. sizes.add("");

136. }

137. }

138.

139. for (int i = 0; i < files.length; i++) {

140. if (files[i].isFile()) {

141. String fileName = files[i].getName();

142. int index = https://www.360docs.net/doc/0f19406974.html,stIndexOf(".");

143. if(index>0){

144. String endName = fileName.substring(index,fileName.length()).toLowe rCase();

145. String type = null;

146. for(int x=0; x

147. //支持的格式，才会在文件浏览器中显示

148. if(endName.equals(FILE_MapTable[x][0])){

149. type = FILE_MapTable[x][1];

150. break;

151. }

152. }

153. if(type!=null){

154. items.add(files[i].getName());

155. paths.add(files[i].getPath());

156. sizes.add(MyUtil.fileSizeMsg(files[i]));

157. }

158. }

159. }

160. }

161. }

162. /* 使用自定义的MyAdapter来将数据传入ListActivity */

163. setListAdapter(new FileListAdapter(this, items, pa ths, sizes, isZoom)); 164. }

165.

166.

167. /**

168. * 打开文件

169. * @param f

170. */

171. private void openFile(File f) {

172. Intent intent = new Intent();

173. intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

174. intent.setAction(android.content.Intent.ACTION_VIEW);

175. // 跳出列表供选择

176. String type = "video/*";

177. if (isOpen == 0) {

178. type = MyUtil.getMI METype(f, true);

179. }

180. // 设置intent的file与MimeType

181. intent.setDataAndType(Uri.fromFile(f), type);

182.// intent.putEx tra("path", "sms_context");

183. startActivity(intent);

184. }

185.

186.@Override

187. public boolean onItemLongClick(AdapterView arg0, View arg1, int arg2, 188. long arg3) {

189. // TODO Auto-generated method stub

190. return false;

191. }

192.

193.}