布局:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 < 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" android:paddingBottom = "@dimen/activity_vertical_margin" android:paddingLeft = "@dimen/activity_horizontal_margin" android:paddingRight = "@dimen/activity_horizontal_margin" android:paddingTop = "@dimen/activity_vertical_margin" tools:context = ".MainActivity" > < LinearLayout android:layout_width = "fill_parent" android:layout_height = "wrap_content" android:orientation = "horizontal" > < Button android:id = "@+id/bt_play" android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:text = "播放" /> < Button android:id = "@+id/bt_pause" android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:text = "暂停" /> < Button android:id = "@+id/bt_replay" android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:text = "重放" /> < Button android:id = "@+id/bt_stop" android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:text = "停止" /> </ LinearLayout > </ LinearLayout >MainActivty
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 package com.sanya.musicplayer; import android.app.Activity; import android.content.ComponentName; import android.content.Intent; import android.content.ServiceConnection; import android.os.Bundle; import android.os.IBinder; import android.telephony.PhoneStateListener; import android.telephony.TelephonyManager; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.Toast; public class MainActivity extends Activity implements OnClickListener { private Button bt_play; private Button bt_pause; private Button bt_replay; private Button bt_stop; private MyConn myConn; private IService myBind; private Intent intent; private TelephonyManager tm; @Override protected void onCreate(Bundle savedInstanceState) { super .onCreate(savedInstanceState); setContentView(R.layout.activity_main); bt_play = (Button) findViewById(R.id.bt_play); bt_pause = (Button) findViewById(R.id.bt_pause); bt_replay = (Button) findViewById(R.id.bt_replay); bt_stop = (Button) findViewById(R.id.bt_stop); bt_play.setOnClickListener( this ); bt_pause.setOnClickListener( this ); bt_replay.setOnClickListener( this ); bt_stop.setOnClickListener( this ); intent = new Intent(getApplicationContext(), MuserService. class ); startService(intent); myConn = new MyConn(); bindService(intent, myConn, BIND_AUTO_CREATE); tm = (TelephonyManager) getSystemService(TELEPHONY_SERVICE); } private class MyListener extends PhoneStateListener{ @Override public void onCallStateChanged( int state, String incomingNumber) { System.out.println( "电话的状态:" +state); switch (state) { //来电 case TelephonyManager.CALL_STATE_RINGING: System.out.println( "来电1" ); myBind.pause(); break ; //挂断 case TelephonyManager.CALL_STATE_IDLE: System.out.println( "来电2" ); myBind.start(); break ; //接通 case TelephonyManager.CALL_STATE_OFFHOOK: System.out.println( "来电3" ); myBind.pause(); break ; } super .onCallStateChanged(state, incomingNumber); } } private class MyConn implements ServiceConnection { @Override public void onServiceConnected(ComponentName name, IBinder service) { myBind = (IService) service; } @Override public void onServiceDisconnected(ComponentName name) { } } @Override public void onClick(View v) { tm.listen( new MyListener(), PhoneStateListener.LISTEN_CALL_STATE); switch (v.getId()) { case R.id.bt_play: myBind.play(); Toast.makeText(MainActivity. this , "播放" , 1 ).show(); break ; case R.id.bt_pause: if ( "暂停" .equals(bt_pause.getText().toString())) { myBind.pause(); bt_pause.setText( "继续" ); Toast.makeText(MainActivity. this , "暂停" , 1 ).show(); } else { myBind.start(); bt_pause.setText( "暂停" ); Toast.makeText(MainActivity. this , "继续" , 1 ).show(); } break ; case R.id.bt_replay: myBind.replay(); Toast.makeText(MainActivity. this , "重播" , 1 ).show(); break ; case R.id.bt_stop: myBind.stop(); Toast.makeText(MainActivity. this , "停止" , 1 ).show(); break ; } } // 退出时解除服务的绑定 @Override protected void onDestroy() { myBind.stop(); unbindService(myConn); System.out.println( "解除绑定服务" ); stopService(intent); System.out.println( "停止服务" ); super .onDestroy(); } }服务:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 package com.sanya.musicplayer; public interface IService { void play(); void pause(); void replay(); void stop(); void start(); }1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 package com.sanya.musicplayer; import android.app.Service; import android.content.Intent; import android.media.AudioManager; import android.media.MediaPlayer; import android.os.Binder; import android.os.IBinder; public class MuserService extends Service { private MediaPlayer mediaPlayer; @Override public IBinder onBind(Intent intent) { return new MyBind(); } @Override public int onStartCommand(Intent intent, int flags, int startId) { return super .onStartCommand(intent, flags, startId); } private class MyBind extends Binder implements IService { @Override public void play() { bt_play(); } @Override public void pause() { bt_pause(); } @Override public void replay() { bt_replay(); } @Override public void stop() { bt_stop(); } public void start() { if (mediaPlayer != null ) { mediaPlayer.start(); System.out.println( "service开始播放" ); } } } private void bt_play() { String path = "/sdcard/1.mp3" ; mediaPlayer = new MediaPlayer(); mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC); try { mediaPlayer.setDataSource(path); mediaPlayer.prepare(); System.out.println( "资源初始化" ); } catch (Exception e) { e.printStackTrace(); } if (mediaPlayer != null ) { mediaPlayer.start(); System.out.println( "service开始播放" ); } } private void bt_pause() { if (mediaPlayer != null && mediaPlayer.isPlaying()) { mediaPlayer.pause(); System.out.println( "暂停重新播放" ); } } private void bt_replay() { if (mediaPlayer != null && mediaPlayer.isPlaying()) { mediaPlayer.seekTo( 0 ); System.out.println( "service重新播放" ); } else { bt_play(); } } private void bt_stop() { if (mediaPlayer != null && mediaPlayer.isPlaying()) { mediaPlayer.stop(); mediaPlayer.release(); mediaPlayer= null ; System.out.println( "service停止播放" ); } } }
AndroidManifest.xml
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 <? xml version = "1.0" encoding = "utf-8" ?> < manifest xmlns:android = "http://schemas.android.com/apk/res/android" package = "com.sanya.musicplayer" android:versionCode = "1" android:versionName = "1.0" > < uses-sdk android:minSdkVersion = "8" android:targetSdkVersion = "17" /> < 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.sanya.musicplayer.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 > < service android:name = ".MuserService" > </ service > </ application > </ manifest >
来自为知笔记(Wiz)
转载于:https://www.cnblogs.com/feelbest/p/3696219.html
相关资源：Android 音乐播放器源码