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：

比原来的是不是好看很多？
希望可以帮到大家
有什么问题可以加我QQ问我：1453022932

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

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