Android(安卓)播放音乐文件与视频文件

package cn.m15.test;import android.app.Activity;import android.media.MediaPlayer;import android.net.Uri;import android.os.Bundle;import android.os.Environment;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.MediaController;import android.widget.TextView;import android.widget.VideoView;public class TestActivity extends Activity {Button mPlayMusic = null;Button mStopMusic = null;Button mPlayVido = null;Button mStopVido = null;TextView mTextView = null;VideoView mVideoView;Uri mUri;MediaPlayer mMediaMusic = null;MediaPlayer mMediaVido = null;@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);mPlayMusic = (Button) findViewById(R.id.btn_01);mStopMusic = (Button) findViewById(R.id.btn_02);mPlayVido = (Button) findViewById(R.id.btn_03);mStopVido = (Button) findViewById(R.id.btn_04);// 创建MediaPlayer 这里用的音频格式是mp3mMediaMusic = MediaPlayer.create(this, R.raw.music);// 创建视频播放视图mVideoView = (VideoView) findViewById(R.id.vidoView);// sd卡下文件的路径(这是我录的一段汤姆猫的录像)mUri = Uri.parse(Environment.getExternalStorageDirectory() + "/TalkingFriends/TalkingTom.mp4");// 设置MediaControllermVideoView.setMediaController( new MediaController(this));// 设置音频循环播放mMediaMusic.setLooping(true);mTextView = (TextView) findViewById(R.id.textView);// 播放声音mPlayMusic.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {mTextView.setText("开始播放音频");if (!mMediaMusic.isPlaying()) {mMediaMusic.start();}}});// 关闭声音mStopMusic.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {mTextView.setText("停止播放音频");if (mMediaMusic.isPlaying()) {mMediaMusic.stop();}}});// 播放视频mPlayVido.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {mTextView.setText("开始播放视频");mVideoView.setVideoURI(mUri);mVideoView.start();}});// 关闭视频mStopVido.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {mTextView.setText("停止播放视频");mVideoView.stopPlayback();}});}}

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:orientation="vertical"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    ><TextView      android:layout_width="fill_parent"     android:layout_height="wrap_content"     android:id="@+id/textView"    />    <Button android:id="@+id/btn_01" android:layout_height="50dip"android:text="播放音频" android:layout_width="150dip"/><Button android:id="@+id/btn_02" android:layout_height="50dip"android:text="关闭音频" android:layout_width="150dip"/><Button android:id="@+id/btn_03" android:layout_height="50dip"android:text="播放视频" android:layout_width="150dip"/><Button android:id="@+id/btn_04" android:layout_height="50dip"android:text="关闭视频" android:layout_width="150dip"/><VideoViewandroid:layout_width="fill_parent"     android:layout_height="wrap_content"     android:id="@+id/vidoView"/></LinearLayout>

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