android播放网络音频

android播放网络音频，很简单的技术，但是可以学习下
 
很简单的一个获取网络音频播放器，有进度条，播放，暂停，停止，重新播放，支持缓存，以下是源码，希望可以帮到大家


布局文件很简单，就几个按钮，TextView,和SeekBar。 
activity_audio_palyer.xml

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="fill_parent"

    android:layout_height="fill_parent" >


    <LinearLayout

        android:layout_width="fill_parent"

        android:layout_height="wrap_content"

        android:layout_gravity="top"

        android:orientation="vertical" >


        <TextView

            android:id="@+id/tips"

            android:layout_width="wrap_content"

            android:layout_height="40dp"

            android:text="文件地址" />


        <EditText

            android:id="@+id/file_name"

            android:layout_width="fill_parent"

            android:layout_height="wrap_content"

            android:text="http://sc1.111ttt.com/2016/1/02/23/195231349486.mp3" />

        <LinearLayout

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:layout_gravity="center_horizontal"

            android:layout_marginTop="4.0dip"

            android:orientation="horizontal" >


            <Button

                android:id="@+id/btnPlayUrl"

                android:layout_width="80dip"

                android:layout_height="wrap_content"

                android:text="播放" >

            </Button>


            <Button

                android:id="@+id/btnPause"

                android:layout_width="80dip"

                android:layout_height="wrap_content"

                android:text="暂停" >

            </Button>


            <Button

                android:id="@+id/btnStop"

                android:layout_width="80dip"

                android:layout_height="wrap_content"

                android:text="停止" >

            </Button>


            <Button

                android:id="@+id/btnReplay"

                android:layout_width="80dip"

                android:layout_height="wrap_content"

                android:text="重播" >

            </Button>

        </LinearLayout>


        <LinearLayout

            android:layout_width="fill_parent"

            android:layout_height="wrap_content"

            android:layout_marginBottom="20dip"

            android:orientation="horizontal" >


            <SeekBar

                android:id="@+id/skbProgress"

                android:layout_width="wrap_content"

                android:layout_height="wrap_content"

                android:layout_gravity="center_vertical"

                android:layout_weight="1.0"

                android:max="100"

                android:paddingLeft="10dip"

                android:paddingRight="10dip" >

            </SeekBar>

        </LinearLayout>

    </LinearLayout>


</FrameLayout>

Player.Java文件

public class Player implements OnBufferingUpdateListener, OnCompletionListener,

        MediaPlayer.OnPreparedListener {

    public MediaPlayer mediaPlayer;

    private SeekBar skbProgress;

    private Timer mTimer = new Timer();

    private String videoUrl;

    private boolean pause;

    private int playPosition;


    public Player(String videoUrl, SeekBar skbProgress) {

        this.skbProgress = skbProgress;

        this.videoUrl = videoUrl;

        try {

            mediaPlayer = new MediaPlayer();

            mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);

            mediaPlayer.setOnBufferingUpdateListener(this);

            mediaPlayer.setOnPreparedListener(this);

        } catch (Exception e) {

            Log.e("mediaPlayer", "error", e);

        }


        mTimer.schedule(mTimerTask, 0, 1000);

    }


    /*******************************************************

     * 通过定时器和Handler来更新进度条

     ******************************************************/

    TimerTask mTimerTask = new TimerTask() {

        @Override

        public void run() {

            if (mediaPlayer == null)

                return;

            if (mediaPlayer.isPlaying() && skbProgress.isPressed() == false) {

                handleProgress.sendEmptyMessage(0);

            }

        }

    };


    Handler handleProgress = new Handler() {

        public void handleMessage(Message msg) {

            int position = mediaPlayer.getCurrentPosition();

            int duration = mediaPlayer.getDuration();

            if (duration > 0) {

                long pos = skbProgress.getMax() * position / duration;

                skbProgress.setProgress((int) pos);

            }

        };

    };


    /**

     * 来电话了

     */

    public void callIsComing() {

        if (mediaPlayer.isPlaying()) {

            playPosition = mediaPlayer.getCurrentPosition();// 获得当前播放位置

            mediaPlayer.stop();

        }

    }


    /**

     * 通话结束

     */

    public void callIsDown() {

        if (playPosition > 0) {

            playNet(playPosition);

            playPosition = 0;

        }

    }


    /**

     * 播放

     */

    public void play() {

        playNet(0);

    }


    /**

     * 重播

     */

    public void replay() {

        if (mediaPlayer.isPlaying()) {

            mediaPlayer.seekTo(0);// 从开始位置开始播放音乐

        } else {

            playNet(0);

        }

    }


    /**

     * 暂停

     */

    public boolean pause() {

        if (mediaPlayer.isPlaying()) {// 如果正在播放

            mediaPlayer.pause();// 暂停

            pause = true;

        } else {

            if (pause) {// 如果处于暂停状态

                mediaPlayer.start();// 继续播放

                pause = false;

            }

        }

        return pause;

    }


    /**

     * 停止

     */

    public void stop() {

        if (mediaPlayer != null && mediaPlayer.isPlaying()) {

            mediaPlayer.stop();

        }

    }


    @Override

    /**  

     * 通过onPrepared播放  

     */

    public void onPrepared(MediaPlayer arg0) {

        arg0.start();

        Log.e("mediaPlayer", "onPrepared");

    }


    @Override

    public void onCompletion(MediaPlayer arg0) {

        Log.e("mediaPlayer", "onCompletion");

    }


    @Override

    public void onBufferingUpdate(MediaPlayer arg0, int bufferingProgress) {

        skbProgress.setSecondaryProgress(bufferingProgress);

        int currentProgress = skbProgress.getMax()

                * mediaPlayer.getCurrentPosition() / mediaPlayer.getDuration();

        Log.e(currentProgress + "% play", bufferingProgress + "% buffer");

    }


    /**

     * 播放音乐

     * 

     * @param playPosition

     */

    private void playNet(int playPosition) {

        try {

            mediaPlayer.reset();// 把各项参数恢复到初始状态

            mediaPlayer.setDataSource(videoUrl);

            mediaPlayer.prepare();// 进行缓冲

            mediaPlayer.setOnPreparedListener(new MyPreparedListener(

                    playPosition));

        } catch (Exception e) {

            e.printStackTrace();

        }

    }


    private final class MyPreparedListener implements

            android.media.MediaPlayer.OnPreparedListener {

        private int playPosition;


        public MyPreparedListener(int playPosition) {

            this.playPosition = playPosition;

        }


        @Override

        public void onPrepared(MediaPlayer mp) {

            mediaPlayer.start();// 开始播放

            if (playPosition > 0) {

                mediaPlayer.seekTo(playPosition);

            }

        }

    }

}

MainActivity.java文件

public class MainActivity extends Activity {


    private Button btnPause, btnPlayUrl, btnStop,btnReplay;

    private SeekBar skbProgress;

    private Player player;

    private EditText file_name_text;

    private TextView tipsView;

    /** Called when the activity is first created. */

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_audio_palyer);


        this.setTitle("在线音乐播放---ouyangpeng编写");  


        btnPlayUrl = (Button) this.findViewById(R.id.btnPlayUrl);  

        btnPlayUrl.setOnClickListener(new ClickEvent());  


        btnPause = (Button) this.findViewById(R.id.btnPause);  

        btnPause.setOnClickListener(new ClickEvent());  


        btnStop = (Button) this.findViewById(R.id.btnStop);  

        btnStop.setOnClickListener(new ClickEvent());  


        btnReplay = (Button) this.findViewById(R.id.btnReplay);  

        btnReplay.setOnClickListener(new ClickEvent());  


        file_name_text=(EditText) this.findViewById(R.id.file_name);

        tipsView=(TextView) this.findViewById(R.id.tips);


        skbProgress = (SeekBar) this.findViewById(R.id.skbProgress);  

        skbProgress.setOnSeekBarChangeListener(new SeekBarChangeEvent());  


        String url=file_name_text.getText().toString();

        player = new Player(url,skbProgress);  


        TelephonyManager telephonyManager=(TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);

        telephonyManager.listen(new MyPhoneListener(), PhoneStateListener.LISTEN_CALL_STATE);

    }


    /**

     * 只有电话来了之后才暂停音乐的播放

     */

    private final class MyPhoneListener extends android.telephony.PhoneStateListener{

        @Override

        public void onCallStateChanged(int state, String incomingNumber) {

            switch (state) {

            case TelephonyManager.CALL_STATE_RINGING://电话来了

                player.callIsComing();

                break;

            case TelephonyManager.CALL_STATE_IDLE: //通话结束

                player.callIsDown();

                break;

            }

        }

    }


    class ClickEvent implements OnClickListener {  

        @Override  

        public void onClick(View arg0) {  

            if (arg0 == btnPause) {  

                boolean pause=player.pause();  

                if (pause) {

                    btnPause.setText("继续");

                    tipsView.setText("暂停播放...");  

                }else{

                    btnPause.setText("暂停");

                    tipsView.setText("继续播放...");  

                }

            } else if (arg0 == btnPlayUrl) {  

                player.play();

                tipsView.setText("开始播放...");

            } else if (arg0 == btnStop) {  

                player.stop();  

                tipsView.setText("停止播放...");  

            } else if (arg0==btnReplay) {

                player.replay();

                tipsView.setText("重新播放...");  

            }

        }  

    }  


    class SeekBarChangeEvent implements SeekBar.OnSeekBarChangeListener {  

        int progress;  

        @Override  

        public void onProgressChanged(SeekBar seekBar, int progress,  

                boolean fromUser) {  

            // 原本是(progress/seekBar.getMax())*player.mediaPlayer.getDuration()  

            this.progress = progress * player.mediaPlayer.getDuration()  

                    / seekBar.getMax();  

        }  


        @Override  

        public void onStartTrackingTouch(SeekBar seekBar) {  


        }  


        @Override  

        public void onStopTrackingTouch(SeekBar seekBar) {  

            // seekTo()的参数是相对与影片时间的数字，而不是与seekBar.getMax()相对的数字  

            player.mediaPlayer.seekTo(progress);  

        }  

    }  

}

OK，在项目文件AndroidManifest.xml里面添加权限

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

    package="com.example.netmusic"

    android:versionCode="1"

    android:versionName="1.0" >


    <uses-sdk

        android:minSdkVersion="8"

        android:targetSdkVersion="18" />

    <uses-permission android:name="android.permission.INTERNET" />

    <!-- 注意：这里要加入一个监听电话的权限 -->

    <uses-permission android:name="android.permission.READ_PHONE_STATE"/>

    <application

        android:allowBackup="true"

        android:icon="@drawable/ic_launcher"

        android:label="@string/app_name"

        android:theme="@style/AppTheme" >

        <activity

            android:name="com.example.netmusic.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>

    </application>


</manifest>

这样做出来的就很原始了，1毛钱特效都没有的那种。 


按钮这些可以自己定义背景，有专门的媒体按钮，去http://www.iconfont.cn/上找，很多的。 
最主要的是咱们的进度条SeekBar，，原始是不是太丑了？来，我们加个样式吧。 
在style文件里面：

 </style>

    <style name="Widget.SeekBar.Normal" parent="@android:style/Widget.SeekBar">  

        <item name="android:maxHeight">8.0dip</item>  

        <item name="android:indeterminateOnly">false</item>  

        <item name="android:indeterminateDrawable">@android:drawable/progress_indeterminate_horizontal</item>  

        <item name="android:progressDrawable">@drawable/seekbar_horizontal</item>  

        <item name="android:minHeight">8.0dip</item>  

        <item name="android:thumb">@drawable/seek_thumb</item>  

        <item name="android:thumbOffset">10.0dip</item>  

    </style> 

新建seekbar_horizontal.xml，drawable里面的

<?xml version="1.0" encoding="UTF-8"?>  

<layer-list

  xmlns:android="http://schemas.android.com/apk/res/android">  

    <item android:id="@android:id/background" android:drawable="@drawable/seek_bkg" />  

    <item android:id="@android:id/secondaryProgress">  

        <clip>  

            <shape>  

                <corners android:radius="2.0dip" />  

                <gradient android:startColor="#80ffd300" android:endColor="#a0ffcb00" android:angle="270.0" android:centerY="0.75" android:centerColor="#80ffb600" />  

            </shape>  

        </clip>

    </item>  

    <item android:id="@android:id/progress">  

        <clip android:drawable="@drawable/seek" />  

    </item>  

</layer-list> 

ok,还有几个图片素材 
 

seek.9.png

 seek_bkg.9.png

 seek_thumb.png

代码里面引用：

 <SeekBar

                android:id="@+id/skbProgress"

                style="@style/Widget.SeekBar.Normal"

                android:layout_width="wrap_content"

                android:layout_height="wrap_content"

                android:layout_gravity="center_vertical"

                android:layout_weight="1.0"

                android:max="100"

                android:paddingLeft="10dip"

                android:paddingRight="10dip" >

            </SeekBar>

这样就可以了，看下效果： 

 
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