MediaPlayer 实现播放,暂停,续播等功能
废话不多说,直接贴代码:
主代码:直接在主文件中写了功能,一般写在Service里面,这里只是个测试Demo
package com.example.androidmediaplayerdemos; import java.io.IOException; import android.media.AudioManager; import android.media.MediaPlayer; import android.media.MediaPlayer.OnCompletionListener; import android.media.MediaPlayer.OnSeekCompleteListener; import android.net.Uri; import android.os.Bundle; import android.app.Activity; import android.content.Context; import android.content.res.AssetFileDescriptor; import android.content.res.Resources; import android.util.Log; import android.view.Menu; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.Toast; public class MainActivity extends Activity implements OnClickListener,OnCompletionListener{ private static final String TAG = "Main"; private static boolean isBluetooth = false; private static MediaPlayer mp = null; private static MediaPlayer mpn = null; private static MediaPlayer mpnb = null; private static AudioManager mAudioManager; private static AssetFileDescriptor afd; private static Resources res; private static int mCurrentVolume; private static int mCurrentSysVolume; private Button mStart; private Button mPause; private Button mStop; private Button mRestart; private Button mSeek; private Button mInit; private static Context mContext; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); mContext=this; mAudioManager = (AudioManager) this .getSystemService(Context.AUDIO_SERVICE); mStart=(Button)findViewById(R.id.player); mStart.setOnClickListener(this); mPause=(Button)findViewById(R.id.pause); mPause.setOnClickListener(this); mStop=(Button)findViewById(R.id.stop); mStop.setOnClickListener(this); mRestart=(Button)findViewById(R.id.restart); mRestart.setOnClickListener(this); mSeek=(Button)findViewById(R.id.seek); mSeek.setOnClickListener(this); mInit=(Button)findViewById(R.id.init); mInit.setOnClickListener(this); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.main, menu); return true; } // notification public void InitPlayNotif(Context context, int id) throws IOException { stopNotif(); mpn = new MediaPlayer(); mAudioManager = (AudioManager) context .getSystemService(context.AUDIO_SERVICE); try { // mpn.setDataSource(context, ringtoneUri); res = context.getResources(); afd = res.openRawResourceFd(R.raw.shanhuhai); mpn.setDataSource(afd.getFileDescriptor(), afd.getStartOffset(), afd.getLength()); } catch (IllegalArgumentException e) { // TODO Auto-generated catch block // e.printStackTrace(); } catch (IllegalStateException e) { // TODO Auto-generated catch block // e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block // e.printStackTrace(); } /* * mAudioManager.setSpeakerphoneOn(false); mAudioManager.setRouting(AudioManager.MODE_NORMAL, AudioManager.ROUTE_EARPIECE, AudioManager.ROUTE_ALL); mAudioManager.setMode(AudioManager.MODE_IN_CALL); mpn.setAudioStreamType(AudioManager.STREAM_VOICE_CALL); mCurrentVolume = mAudioManager .getStreamVolume(AudioManager.STREAM_MUSIC); */ Log.i(TAG, "notification volume : " + mCurrentVolume); mAudioManager.setStreamVolume(AudioManager.STREAM_MUSIC, 5, 0); try { mpn.prepare(); } catch (IllegalStateException e) { // TODO Auto-generated catch block // e.printStackTrace(); } // mpn.start(); mpn.setOnSeekCompleteListener(new OnSeekCompleteListener(){ @Override public void onSeekComplete(MediaPlayer arg0) { // TODO Auto-generated method stub Toast.makeText(mContext, "play completely !", Toast.LENGTH_SHORT).show(); } }); } public static void stopNotif() { try { if (mpn != null) { mpn.stop(); mpn.release(); mpn = null; } } catch (Exception e) { } } private void startPlayer(){ if(mpn==null){ return; } try { try { mpn.prepare(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } catch (IllegalStateException e) { // TODO Auto-generated catch block // e.printStackTrace(); } mpn.start(); } private void pausePlayer(){ if(mpn==null){ return; } mpn.pause(); } private void restartPlayer(){ if(mpn==null){ return; } mpn.start(); } private void seekPlayer(){ if(mpn==null){ return; } mpn.seekTo(1000*60); mpn.setOnSeekCompleteListener(new OnSeekCompleteListener(){ @Override public void onSeekComplete(MediaPlayer arg0) { // TODO Auto-generated method stub mpn.start(); } }); } private void stopPlayer(){ if(mpn==null){ return; } stopNotif(); } private void initPlayer(){ try { InitPlayNotif(this,0); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } @Override public void onClick(View arg0) { // TODO Auto-generated method stub int id=arg0.getId(); switch(id){ case R.id.player: startPlayer(); break; case R.id.pause: pausePlayer(); break; case R.id.restart: restartPlayer(); break; case R.id.stop: stopPlayer(); break; case R.id.seek: seekPlayer(); break; case R.id.init: initPlayer(); break; default : break; } } @Override public void onCompletion(MediaPlayer arg0) { // TODO Auto-generated method stub } }
布局配置文件:随便丢了几个Button在里面:
<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: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" > <Button android:id="@+id/player" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentLeft="true" android:layout_alignParentTop="true" android:layout_marginLeft="17dp" android:layout_marginTop="40dp" android:text="player" /> <Button android:id="@+id/pause" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignLeft="@+id/player" android:layout_below="@+id/player" android:layout_marginTop="18dp" android:text="pause" /> <Button android:id="@+id/restart" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignLeft="@+id/pause" android:layout_centerVertical="true" android:text="restart" /> <Button android:id="@+id/stop" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignLeft="@+id/restart" android:layout_below="@+id/restart" android:layout_marginTop="18dp" android:text="stop" /> <Button android:id="@+id/seek" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignLeft="@+id/stop" android:layout_alignParentBottom="true" android:layout_marginBottom="34dp" android:text="seek 1 min" /> <Button android:id="@+id/init" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentTop="true" android:layout_marginTop="17dp" android:layout_toRightOf="@+id/seek" android:text="init before player everytime" /> </RelativeLayout>
音乐播放文件,我给的是jay的一首 "珊瑚海"
在res目录下新建raw文件夹,让后把mp3文件放到这个目录下即可,文件名为 "shanhuhai.mp3"
基本上就可以使用了,差不多了.
