Android 播放音乐文件与视频文

03.import android.app.Activity; 04.import android.media.MediaPlayer; 05.import android.net.Uri; 06.import android.os.Bundle; 07.import android.os.Environment; 08.import android.view.View; 09.import android.view.View.OnClickListener; 10.import android.widget.Button; 11.import android.widget.MediaController; 12.import android.widget.TextView; 13.import android.widget.VideoView; 14. 15.public class TestActivity extends Activity { 16. 17. Button mPlayMusic = null; 18. Button mStopMusic = null; 19. Button mPlayVido = null; 20. Button mStopVido = null; 21. 22. TextView mTextView = null; 23. VideoView mVideoView; 24. Uri mUri; 25. 26. MediaPlayer mMediaMusic = null; 27. MediaPlayer mMediaVido = null; 28. 29. @Override 30. public void onCreate(Bundle savedInstanceState) { 31. super.onCreate(savedInstanceState); 32. setContentView(R.layout.main); 33. mPlayMusic = (Button) findViewById(R.id.btn_01); 34. mStopMusic = (Button) findViewById(R.id.btn_02); 35. mPlayVido = (Button) findViewById(R.id.btn_03); 36. mStopVido = (Button) findViewById(R.id.btn_04); 37. 38. // 创建MediaPlayer 这里用的音频格式是mp3 39. mMediaMusic = MediaPlayer.create(this, R.raw.music); 40. 41. // 创建视频播放视图 42. mVideoView = (VideoView) findViewById(R.id.vidoView); 43. 44. // sd卡下文件的路径(这是我录的一段汤姆猫的录像) 45. mUri = Uri.parse(Environment.getExternalStorageDirectory() + "/TalkingFriends/TalkingTom.mp4"); 46. 47. // 设置MediaController 48. mVideoView.setMediaController( new MediaController(this)); 49. 50. // 设置音频循环播放 51. mMediaMusic.setLooping(true); 52. 53. mTextView = (TextView) findViewById(R.id.textView); 54. 55. // 播放声音 56. mPlayMusic.setOnClickListener(new OnClickListener() { 57. @Override 58. public void onClick(View v) { 59. mTextView.setText("开始播放音频"); 60. if (!mMediaMusic.isPlaying()) { 61. mMediaMusic.start(); 62. } 63. 64. } 65. }); 66. // 关闭声音 67. mStopMusic.setOnClickListener(new OnClickListener() { 68. @Override 69. public void onClick(View v) { 70. mTextView.setText("停止播放音频"); 71. if (mMediaMusic.isPlaying()) { 72. mMediaMusic.stop(); 73. } 74. } 75. }); 76. 77. // 播放视频 78. mPlayVido.setOnClickListener(new OnClickListener() { 79. 80. @Override 81. public void onClick(View v) { 82. mTextView.setText("开始播放视频"); 83. mVideoView.setVideoURI(mUri); 84. mVideoView.start(); 85. } 86. }); 87. 88. // 关闭视频 89. mStopVido.setOnClickListener(new OnClickListener() { 90. 91. @Override 92. public void onClick(View v) { 93. mTextView.setText("停止播放视频"); 94. mVideoView.stopPlayback(); 95. } 96. }); 97. } 98.} 布局文件

01.<?xml version="1.0" encoding="utf-8"?>  
02.<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"  
03.    android:orientation="vertical"  
04.    android:layout_width="fill_parent"  
05.    android:layout_height="fill_parent"  
06.    >  
07.<TextView    
08.    android:layout_width="fill_parent"   
09.    android:layout_height="wrap_content"   
10.    android:id="@+id/textView"  
11.    />  
12.    <Button android:id="@+id/btn_01" android:layout_height="50dip"  
13.            android:text="播放音频" android:layout_width="150dip"/>  
14.    <Button android:id="@+id/btn_02" android:layout_height="50dip"  
15.            android:text="关闭音频" android:layout_width="150dip"/>  
16.    <Button android:id="@+id/btn_03" android:layout_height="50dip"  
17.            android:text="播放视频" android:layout_width="150dip"/>  
18.    <Button android:id="@+id/btn_04" android:layout_height="50dip"  
19.            android:text="关闭视频" android:layout_width="150dip"/>  
20.    <VideoView  
21.    android:layout_width="fill_parent"   
22.    android:layout_height="wrap_content"   
23.    android:id="@+id/vidoView"  
24.    />  
25.</LinearLayout>