android 播放声音、视频应用

这是入口

package com.example.soundpooldemo;

import java.io.IOException;

import android.app.Activity;
import android.content.Intent;
import android.media.AudioManager;
import android.media.MediaPlayer;
import android.media.SoundPool;
import android.os.Bundle;
import android.view.View;
import android.view.View.MeasureSpec;
import android.view.View.OnClickListener;
import android.widget.Button;

public class MainActivity extends Activity {
private Button btn_playSoundpool;
private SoundPool sp;
private int sountID;
private Button btn_mediaplayer;
private MediaPlayer mp;
private Button btn_player;
private Button btn_videoView;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

btn_playSoundpool=(Button) findViewById(R.id.btn_playSoundpool);
btn_mediaplayer=(Button) findViewById(R.id.btn_mediaplayer);
btn_videoView=(Button) findViewById(R.id.btn_videoView);
btn_player=(Button) findViewById(R.id.btn_player);
sp=new SoundPool(1, AudioManager.STREAM_MUSIC, 0);
sountID=sp.load(this, R.raw.like, 1);
btn_playSoundpool.setOnClickListener(new OnClickListener() {

@Override
public void onClick(View v) {
// TODO Auto-generated method stub
//SoundPool只能播放短声音
sp.play(sountID, 1, 1, 0, 0, 1);
}
});
btn_mediaplayer.setOnClickListener(new OnClickListener() {

@Override
public void onClick(View v) {
// TODO Auto-generated method stub
if(mp!=null){
mp.start();
}

}
});
btn_player.setOnClickListener(new OnClickListener() {

@Override
public void onClick(View v) {
Intent video=new Intent();
video.setClass(MainActivity.this, PlayVideo.class);
startActivity(video);

}
});
btn_videoView.setOnClickListener(new OnClickListener() {

@Override
public void onClick(View v) {
Intent video=new Intent();
video.setClass(MainActivity.this, VideoViewPlay.class);
startActivity(video);

}
});
}
@Override
protected void onResume() {
// TODO Auto-generated method stub
mp=MediaPlayer.create(this, R.raw.like);
try {
mp.prepare();
} catch (IllegalStateException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
super.onResume();
}
@Override
protected void onPause() {
// TODO Auto-generated method stub
if(mp!=null){
mp.release();
}
super.onPause();
}

}

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >

<Button
android:id="@+id/btn_playSoundpool"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="SoundPool播放短声音" />
<Button
android:id="@+id/btn_mediaplayer"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="MediaPlayer播放长长声音" />
<Button
android:id="@+id/btn_player"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="MediaPlayer播放mp4视频" />
<Button
android:id="@+id/btn_videoView"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="btn_videoView播放mp4视频" />

</LinearLayout>

这是PlayVideo播放视频的

package com.example.soundpooldemo;

import java.io.IOException;

import android.app.Activity;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.view.SurfaceHolder;
import android.view.SurfaceHolder.Callback;
import android.view.SurfaceView;

public class PlayVideo extends Activity {
private SurfaceView sv;
private SurfaceHolder holder;
private Callback callBalk=new Callback() {
private MediaPlayer mp;

@Override
public void surfaceDestroyed(SurfaceHolder holder) {
// TODO Auto-generated method stub
mp.release();
}

@Override
public void surfaceCreated(SurfaceHolder holder) {
// TODO Auto-generated method stub
mp=MediaPlayer.create(PlayVideo.this, R.raw.ren);
try {
mp.prepare();
} catch (IllegalStateException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
mp.setDisplay(holder);
mp.start();
}

@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width,
int height) {
// TODO Auto-generated method stub

}
};
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
sv=new SurfaceView(this);
holder=sv.getHolder();
holder.addCallback(callBalk);
setContentView(sv);
}

}
这是VideoView播放视频
package com.example.soundpooldemo;

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.widget.MediaController;
import android.widget.Toast;
import android.widget.VideoView;

public class VideoViewPlay extends Activity {
private VideoView videoView;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.video);
//本地的视频 需要在手机SD卡根目录添加一个 fl1234.mp4 视频
String videoUrl1 = Environment.getExternalStorageDirectory().getPath()+"/fl1234.mp4" ;

//网络视频
String videoUrl2 = Utils.videoUrl ;

Uri uri = Uri.parse( videoUrl2 );

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

//设置视频控制器
videoView.setMediaController(new MediaController(this));

//播放完成回调
videoView.setOnCompletionListener( new MyPlayerOnCompletionListener());

//设置视频路径
videoView.setVideoURI(uri);
//设置隐藏播放视频进度条、播放、暂停、上一个、下一个
MediaController mc = new MediaController(this);
mc.setVisibility(View.INVISIBLE);
videoView.setMediaController(mc);

//开始播放视频
videoView.start();
}

class MyPlayerOnCompletionListener implements MediaPlayer.OnCompletionListener {

@Override
public void onCompletion(MediaPlayer mp) {
Toast.makeText( VideoViewPlay.this, "播放完成了", Toast.LENGTH_SHORT).show();
}
}

}

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<VideoView
android:id="@+id/videoView"
android:layout_width="match_parent"
android:layout_height="match_parent"
/>

</RelativeLayout>

package com.example.soundpooldemo;

public class Utils {
public static final String videoUrl = "http://clips.vorwaerts-gmbh.de/big_buck_bunny.mp4" ;
}

最后是xml配制文件

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.soundpooldemo"
android:versionCode="1"
android:versionName="1.0" >

<uses-sdk
android:minSdkVersion="17"
android:targetSdkVersion="17" />
<uses-permission android:name="android.permission.INTERNET"></uses-permission>
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />

<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name="com.example.soundpooldemo.PlayVideo"
android:screenOrientation="landscape"
android:theme="@android:style/Theme.Black.NoTitleBar.Fullscreen" ></activity>
<activity android:name="com.example.soundpooldemo.VideoView"
android:screenOrientation="landscape"
android:theme="@android:style/Theme.Black.NoTitleBar.Fullscreen" ></activity>
<activity android:name="com.example.soundpooldemo.VideoViewPlay"
android:screenOrientation="landscape"
android:theme="@android:style/Theme.Black.NoTitleBar.Fullscreen" ></activity>
</application>

</manifest>