android--Sound Service (Audiomanager)

The Main.xml code is as follows:

<?xml version= "1.0" encoding= "Utf-8"? ><linearlayout xmlns:android= "http://schemas.android.com/apk/res/ Android "Android:layout_width=" Fill_parent "android:layout_height=" fill_parent "android:orientation=" vertical "&G    T <imagebutton android:id= "@+id/voiceon" android:layout_width= "Wrap_content" android:layout_height= " Wrap_content "android:src=" @drawable/voice_on "/> <imagebutton android:id=" @+id/voiceoff "an Droid:layout_width= "Wrap_content" android:layout_height= "wrap_content" android:src= "@drawable/voice_off"/&gt      ; <imagebutton android:id= "@+id/voicevibrate" android:layout_width= "Wrap_content" Android:layout_hei ght= "Wrap_content" android:src= "@drawable/voice_vibrate"/> <imagebutton android:id= "@+id/voicelo Wer "android:layout_width=" wrap_content "android:layout_height=" wrap_content "android:src=" @drawable/     Voice_lower "/>   <imagebutton android:id= "@+id/voiceraise" android:layout_width= "Wrap_content" android:layout_he ight= "Wrap_content" android:src= "@drawable/voice_raise"/></linearlayout>

The activity program is as follows:

Package Org.lxh.demo;import Java.io.ioexception;import Android.app.activity;import android.content.context;import Android.media.audiomanager;import Android.media.mediaplayer;import Android.os.bundle;import Android.view.View; Import Android.view.view.onclicklistener;import Android.widget.imagebutton;import Android.widget.toast;public Class Myaudiomanagerdemo extends Activity {private ImageButton Voiceon = null;p rivate ImageButton voiceoff = null;p Rivat e ImageButton voicevibrate = null;p rivate ImageButton voicelower = null;p rivate ImageButton voiceraise = null;p rivate A Udiomanager audio = null; @Overridepublic void OnCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate) ; Super.setcontentview (r.layout.main); This.voiceon = (ImageButton) Super.findviewbyid (r.id.voiceon); this.voiceOff = (ImageButton) Super.findviewbyid (r.id.voiceoff); this.voicevibrate = (ImageButton) Super.findviewbyid ( r.id.voicevibrate); this.voicelower = (ImageButton) Super.findviewbyid (r.id.voicelower); this.voiceraise = (ImageButton) Super.findviewbyid (r.id.voiceraise); This.audio = (Audiomanager) Super.getsystemservice (Context.audio_service); This.voiceOn.setOnClickListener (new Voiceononclicklistenerimpl ()) ; This.voiceOff.setOnClickListener (New Voiceoffonclicklistenerimpl ()); This.voiceVibrate.setOnClickListener (new Voicevibrateonclicklistenerimpl ()); This.voiceLower.setOnClickListener (new Voiceloweronclicklistenerimpl ()); This.voiceRaise.setOnClickListener (New Voiceraiseonclicklistenerimpl ()); This.playaudio ();} private void Playaudio () {MediaPlayer media = mediaplayer.create (this, R.raw.mldn_java); media.setlooping (true);// Loop play try {media.prepare ();} catch (Exception e) {}media.start ();} Private class Voiceononclicklistenerimpl implements Onclicklistener {@Overridepublic void OnClick (View v) { MyAudioManagerDemo.this.audio.setRingerMode (Audiomanager.ringer_mode_normal); Toast.maketext (Myaudiomanagerdemo.this, "Phone volume on! ", Toast.length_short). Show ();}} Private Class VoiceoffonclicklisTenerimpl implements Onclicklistener {@Overridepublic void OnClick (View v) { MyAudioManagerDemo.this.audio.setRingerMode (audiomanager.ringer_mode_silent); Toast.maketext (Myaudiomanagerdemo.this, "Mute the phone! ", Toast.length_short). Show ();}} Private class Voicevibrateonclicklistenerimpl implements Onclicklistener {@Overridepublic void OnClick (View v) { MyAudioManagerDemo.this.audio.setRingerMode (audiomanager.ringer_mode_vibrate); Toast.maketext (Myaudiomanagerdemo.this, "mobile phone for vibration mode! ", Toast.length_short). Show ();}} Private class Voiceloweronclicklistenerimpl implements Onclicklistener {@Overridepublic void OnClick (View v) { MyAudioManagerDemo.this.audio.adjustVolume (audiomanager.adjust_lower, 0); Toast.maketext (Myaudiomanagerdemo.this, "Volume down! ", Toast.length_short). Show ();}} Private class Voiceraiseonclicklistenerimpl implements Onclicklistener {@Overridepublic void OnClick (View v) { MyAudioManagerDemo.this.audio.adjustVolume (audiomanager.adjust_raise, 0); Toast.maketext (Myaudiomanagerdemo.this, "volume increased! ", Toast.length_short). Show ();}}} 

The results are as follows:

android--Sound Service (Audiomanager)