Android中服务类似windows中的服务，服务一般没有用户界面操作，它运行于系统中不容易被用户发觉，可以使用它开发如监控之类的程序。服务的开发比较简单，如下：第一步：继承Service类public class SMSService extends Service{}第二步：在清单文件中的<application>节点里对服务进行配置<service android:name=”.SMSService”服务不能自己运行，需要通过调用Context.startService()或Context.bindService方法启动服务。这两个方法都可以启动服务，但是它们的使用场合不同。使用startService()方法启动服务，访问者与服务之间没有关联，即使访问者退出了，服务仍然运行。使用bindService()方法启动服务，访问者和服务绑定在了一起，访问者一旦退出，服务也就终止，大有“不求同时生，但求同时死”的特点。采用Context.startService()方法启动服务，只能调用Context.stopService()方法结束服务，服务结束时会调用onDestroy()方法。
一、本地服务通过startService()和stopService()启动服务。适用于服务与访问者直接没有交互的情况。如果服务和访问者直接需要方法调用或参数传递，则需要使用bindService()和bindService()方法启动关闭服务。采用Context.bindService()方法启动服务，在服务未被创建时，系统会先调用服务的onCreate()方法，接着调用onBind()方法。这个时候访问者和服务绑定在了一起。如果访问者要与服务进行通信，那么onBind()方法必须返回Ibinder对象。如果访问者退出了，系统就会先调用服务的onUnbind()方法，接着调用onDestroy()方法。如果调用bindService()方法前服务已经被绑定，多次调用bindService()方法并不会导致多次创建服务及绑定（也就是说onCreate()和onBind()方法并不会多次调用）。如果访问者希望与正在绑定的服务解除绑定，可以调用unBindService()方法，调用该方法也会导致系统调用服务的onUnbind()->onDestroy()方法。
public class MainActivity extends Activity { private EditText studentno; private ServiceConnection conn = new StudentServiceConnection(); private IStundent iStundent; private TextView resultView; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); resultView = (TextView) this.findViewById(R.id.resultView); studentno = (EditText) this.findViewById(R.id.studentno); Button button = (Button) this.findViewById(R.id.button); button.setOnClickListener(new ButtonClickListener()); Intent service = new Intent(this, StudentService.class); bindService(service, conn, BIND_AUTO_CREATE); } private class StudentServiceConnection implements ServiceConnection { public void onServiceConnected(ComponentName name, IBinder service) {iStundent = (IStundent)service; } public void onServiceDisconnected(ComponentName name) {iStundent = null; } } @Override protected void onDestroy() {unbindService(conn);super.onDestroy(); } private finalclass ButtonClickListener implements View.OnClickListener {public void onClick(View v) {String no = studentno.getText().toString();String name = iStundent.queryStudent(Integer.valueOf(no));resultView.setText(name);} }}public interface IStundent {public String queryStudent(int no);}public class StudentService extends Service{private String[] names = {"张飞","李小龙","赵薇"};private IBinder binder = new StundentBinder();public String query(int no){if(no>0 && no<4){return names[no - 1];}return null;}public IBinder onBind(Intent intent) {return binder;}private class StundentBinder extends Binder implements Istundent{public String queryStudent(int no) {return query(no);}}}二、远程服务使用AIDL（Android Interface Definition Language）和远程服务实现进程通信要构建远程服务，执行以下步骤：（1）.编写一个AIDL文件来向客户端定义接口。包名与Android项目同。（2）.将AIDL文件添加到Eclipse项目的src目录下。编译器将在gen下自动生成java接口。（3）.实现一个服务并从onBind()方法返回所生成的接口。（4）.将服务配置添加到AndroidManifest.xml文件中。AIDL语法：(1).AIDL定义接口的源代码必须以.aidl结尾;(2).AIDL接口中用到的数据类型，除了基本类型,String,List,Map,CharSequence之外，其他类型全部都需要导包，即使在同一个包中也需要导包。StudentQuery.aidl文件（在服务端和客户端都须包含该文件）//AIDLinterface StudentQuery{String queryStudent(int number);}在gen目录下会自动生成StudentQuery.java文件Service类public class StudentQueryService extends Service {private String[] names = {"张飞", "李静", "赵薇"};private IBinder binder = new StudentQueryBinder();@Overridepublic IBinder onBind(Intent intent) {return binder;}private String query(int number){if(number > 0 && number < 4){return names[number - 1];}return null;}private final class StudentQueryBinder extends StudentQuery.Stub{public String queryStudent(int number) throws RemoteException {return query(number);}}}//配置文件，隐式意图<service android:name=".StudentQueryService"><intent-filter ><action android:name="com.zouyong.student.query"/></intent-filter></service>客户端代码：//采用隐式意图绑定服务Intent service = new Intent("com.zouyong.student.query");bindService(service, conn, BIND_AUTO_CREATE);private StudentQuery studentQuery;private StudentConnection conn = new StudentConnection();public void queryStudent(View v) { String number = numberText.getText().toString(); int num = Integer.valueOf(number); try {resultView.setText(studentQuery.queryStudent(num)); } catch (RemoteException e) {e.printStackTrace(); }}protected void onDestroy() { unbindService(conn); super.onDestroy();}private final class StudentConnection implements ServiceConnection { public void onServiceConnected(ComponentName name, IBinder service){
// StudentQuery.Stub.asInterface系统生成方法 studentQuery = StudentQuery.Stub.asInterface(service);} public void onServiceDisconnected(ComponentName name) {studentQuery = null;}}传递复杂数据的AIDL Service(传递的数据类型是自定义类型，需要序列化)Person.aidl文件parcelable Person;Person.javapublic class Person implements Parcelable{private Integer id;private String name;private String pass;public Person(){}public Person(Integer id, String name, String pass){super();this.id = id;this.name = name;this.pass = pass;}.........//省略setter和getter方法@Overridepublic int hashCode(){final int prime = 31;int result = 1;result = prime * result + ((name == null) ? 0 : name.hashCode());result = prime * result + ((pass == null) ? 0 : pass.hashCode());return result;}@Overridepublic boolean equals(Object obj){if (this == obj)return true;if (obj == null)return false;if (getClass() != obj.getClass())return false;Person other = (Person) obj;if (name == null){if (other.name != null)return false;}else if (!name.equals(other.name))return false;if (pass == null){if (other.pass != null)return false;}else if (!pass.equals(other.pass))return false;return true;}// 实现Parcelable接口必须实现的方法@Overridepublic int describeContents(){return 0;}// 实现Parcelable接口必须实现的方法@Overridepublic void writeToParcel(Parcel dest, int flags){//把该对象所包含的数据写到Parceldest.writeInt(id);dest.writeString(name);dest.writeString(pass);}// 添加一个静态成员,名为CREATOR,该对象实现了Parcelable.Creator接口public static final Parcelable.Creator<Person> CREATOR= new Parcelable.Creator<Person>() //①{@Overridepublic Person createFromParcel(Parcel source){// 从Parcel中读取数据，返回Person对象return new Person(source.readInt(), source.readString(), source.readString());}@Overridepublic Person[] newArray(int size){return new Person[size];}};}Pet.aidl文件parcelable Pet;Pet.javapublic class Pet implements Parcelable{private String name;private double weight;public Pet(){}public Pet(String name, double weight){super();this.name = name;this.weight = weight;}........//省略Setter和Getter方法@Overridepublic int describeContents(){return 0;}/* (non-Javadoc) * @see android.os.Parcelable#writeToParcel(android.os.Parcel, int) */@Overridepublic void writeToParcel(Parcel dest, int flags){//把该对象所包含的数据写到Parceldest.writeString(name);dest.writeDouble(weight);}// 添加一个静态成员,名为CREATOR,该对象实现了Parcelable.Creator接口public static final Parcelable.Creator<Pet> CREATOR= new Parcelable.Creator<Pet>(){@Overridepublic Pet createFromParcel(Parcel source){// 从Parcel中读取数据，返回Person对象return new Pet(source.readString(), source.readDouble());}@Overridepublic Pet[] newArray(int size){return new Pet[size];}};@Overridepublic String toString(){return "Pet [name=" + name + ", weight=" + weight + "]";}}IPet.aidl package org.crazyit.service;import org.crazyit.service.Pet;import org.crazyit.service.Person;interface IPet{// 定义一个Person对象作为传入参数List<Pet> getPets(in Person owner); //in:参数传递方式}ComplexService.java 服务类public class ComplexService extends Service{private PetBinder petBinder;private static Map<Person , List<Pet>> pets= new HashMap<Person , List<Pet>>();static{// 初始化pets Map集合ArrayList<Pet> list1 = new ArrayList<Pet>();list1.add(new Pet("旺财" , 4.3));list1.add(new Pet("来福" , 5.1));pets.put(new Person(1, "sun" , "sun") , list1);ArrayList<Pet> list2 = new ArrayList<Pet>();list2.add(new Pet("kitty" , 2.3));list2.add(new Pet("garfield" , 3.1));pets.put(new Person(2, "bai" , "bai") , list2);}// 继承Stub，也就是实现额IPet接口，并实现了IBinder接口public class PetBinder extends Stub{@Overridepublic List<Pet> getPets(Person owner) throws RemoteException{// 返回Service内部的数据return pets.get(owner);}}@Overridepublic void onCreate(){super.onCreate();petBinder = new PetBinder();}@Overridepublic IBinder onBind(Intent arg0){/* 返回catBinder对象 * 在绑定本地Service的情况下，该catBinder对象会直接 * 传给客户端的ServiceConnection对象 * 的onServiceConnected方法的第二个参数； * 在绑定远程Service的情况下，只将catBinder对象的代理 * 传给客户端的ServiceConnection对象 * 的onServiceConnected方法的第二个参数； */return petBinder; //①}@Overridepublic void onDestroy(){}}ComplexClient.java 客户端public class ComplexClient extends Activity{private IPet petService;private Button get;EditText personView;ListView showView;private ServiceConnection conn = new ServiceConnection(){@Overridepublic void onServiceConnected(ComponentName name, IBinder service){// 获取远程Service的onBind方法返回的对象的代理petService = IPet.Stub.asInterface(service);}@Overridepublic void onServiceDisconnected(ComponentName name){petService = null;}};@Overridepublic void onCreate(Bundle savedInstanceState){super.onCreate(savedInstanceState);setContentView(R.layout.main);personView = (EditText) findViewById(R.id.person);showView = (ListView) findViewById(R.id.show);get = (Button) findViewById(R.id.get);// 创建所需绑定的Service的IntentIntent intent = new Intent();intent.setAction("org.crazyit.aidl.action.COMPLEX_SERVICE");// 绑定远程ServicebindService(intent, conn, Service.BIND_AUTO_CREATE);get.setOnClickListener(new OnClickListener(){@Overridepublic void onClick(View arg0){try{String personName = personView.getText().toString();// 调用远程Service的方法List<Pet> pets = petService.getPets(new Person(1,personName, personName)); //①// 将程序返回的List包装成ArrayAdapterArrayAdapter<Pet> adapter = new ArrayAdapter<Pet>(ComplexClient.this,android.R.layout.simple_list_item_1, pets);showView.setAdapter(adapter);}catch (RemoteException e){e.printStackTrace();}}});}@Overridepublic void onDestroy(){super.onDestroy();// 解除绑定this.unbindService(conn);}}注：在客户端中需要把IPet.aidl, Person.java ,Person.aidl, Pet.java ，Pet.aidl复制过去。三、IntentServiceIntentService具有如下特征：(1).IntentService会创建单独的worker来处理所有的Intent请求；(2).IntentService会创建单独的worker线程来处理onHandleIntent()方法实现的代码，无须处理多线程问题；(3).当所有请求处理完成后，会自动停止，无须调用stopSelf()方法来停止Service；(4).为Service的onBind()方法提供了默认的实现，默认实现的onBind()方法返回null；(5).为Service的onStartCommand()方法提供了默认实现，该实现会将请求Intent添加到队列中。IntentService 实际上是Looper,Handler,Service 的集合体,他不仅有服务的功能,还有处理和循环消息的功能.不管是何种Service，它默认都是在应用程序的主线程（亦即UI线程）中运行的。所以，如果你的Service将要运行非常耗时或者可能被阻塞的操作时，你的应用程序将会被挂起，甚至会出现ANR错误。为了避免这一问题，你应该在Service中重新启动一个新的线程来进行这些操作。现有两种方法：1.直接在Service的onStartCommand()方法中重启一个线程来执行2.使用IntentService四、服务生命周期服务的生命周期跟启动服务的方法有关：1.当采用Context.startService()方法启动服务，与之有关的生命周期方法:onCreate()->onStartCommand()->onDestroy()onCreate():服务被创建时调用，只会被调用一次，无论调用多少次startService()或bindService()方法，服务也只被创建一次。onStartCommand():只有采用Context.startService()方法启动服务时才会回调该方法。在服务开始运行时被调用，多次调用startService()方法尽管不会多次创建服务，但onStart()会被多次调用。onDestroy():该方法在服务被终止时调用.2.当采用Context.bindService()方法启动服务，与之有关的生命周期方法:onCreate()->onBind()->onUnbind()->onDestroy()onBind()::只有采用Context.bindService()方法启动服务时才会回调该方法。该方法在调用者与服务绑定时被调用，当调用者与服务已经绑定，多次调用Context.bindService()方法不会导致该方法被多次调用。onUnbind()方法：只有采用Context.bindService()方法启动服务时才会回调该方法。该方法在调用者与服务解除绑定时被调用。3.如果先采用startService()方法启动服务，然后调用bindService()方法绑定服务，再调用unbindService()方法解除绑定，最后调用bindService()方法再次绑定到服务，触发的生命周期方法如下：onCreate()->onStartCommand()->onBind()->onUnbind()[重载后的方法需返回true]->onRebind();五、 系统服务电话管理器(TelephoneyManager)短信管理器(SmsManager)音频管理器(AudioManager)振动器(Vibrator)手机闹钟服务(AlarmManager)壁纸管理(WallpaperManager)获取网络和SIM卡信息public class TelephonyStatus extends Activity{ListView showView;// 声明代表状态名的数组String[] statusNames;// 声明代表手机状态的集合ArrayList<String> statusValues = new ArrayList<String>();@Overridepublic void onCreate(Bundle savedInstanceState){super.onCreate(savedInstanceState);setContentView(R.layout.main);// 获取系统的TelephonyManager对象TelephonyManager tManager = (TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE);// 获取各种状态名称的数组statusNames = getResources().getStringArray(R.array.statusNames);// 获取代表SIM卡状态的数组String[] simState = getResources().getStringArray(R.array.simState);// 获取代表电话网络类型的数组String[] phoneType = getResources().getStringArray(R.array.phoneType);// 获取设备编号statusValues.add(tManager.getDeviceId());// 获取系统平台的版本statusValues.add(tManager.getDeviceSoftwareVersion()!= null ? tManager.getDeviceSoftwareVersion() : "未知");// 获取网络运营商代号statusValues.add(tManager.getNetworkOperator());// 获取网络运营商名称statusValues.add(tManager.getNetworkOperatorName());// 获取手机网络类型statusValues.add(phoneType[tManager.getPhoneType()]);// 获取设备所在位置statusValues.add(tManager.getCellLocation() != null ? tManager.getCellLocation().toString() : "未知位置");// 获取SIM卡的国别statusValues.add(tManager.getSimCountryIso());// 获取SIM卡序列号statusValues.add(tManager.getSimSerialNumber());// 获取SIM卡状态statusValues.add(simState[tManager.getSimState()]);// 获得ListView对象showView = (ListView) findViewById(R.id.show);ArrayList<Map<String, String>> status = new ArrayList<Map<String, String>>();// 遍历statusValues集合，将statusNames、statusValues// 的数据封装到List<Map<String , String>>集合中for (int i = 0; i < statusValues.size(); i++){HashMap<String, String> map = new HashMap<String, String>();map.put("name", statusNames[i]);map.put("value", statusValues.get(i));status.add(map);}// 使用SimpleAdapter封装List数据SimpleAdapter adapter = new SimpleAdapter(this, status,R.layout.line, new String[] { "name", "value" }, new int[] { R.id.name, R.id.value });// 为ListView设置AdaptershowView.setAdapter(adapter);}}监听手机来电public class MonitorPhone extends Activity{TelephonyManager tManager;@Overridepublic void onCreate(Bundle savedInstanceState){super.onCreate(savedInstanceState);setContentView(R.layout.main);// 取得TelephonyManager对象tManager = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);// 创建一个通话状态监听器PhoneStateListener listener = new PhoneStateListener(){@Overridepublic void onCallStateChanged(int state, String number){switch (state){// 无任何状态case TelephonyManager.CALL_STATE_IDLE:break;case TelephonyManager.CALL_STATE_OFFHOOK:break;// 来电铃响时case TelephonyManager.CALL_STATE_RINGING:OutputStream os = null;try{os = openFileOutput("phoneList", MODE_APPEND);}catch (FileNotFoundException e){e.printStackTrace();}PrintStream ps = new PrintStream(os);// 将来电号码记录到文件中ps.println(new Date() + " 来电：" + number);ps.close();break;default:break;}super.onCallStateChanged(state, number);}};// 监听电话通话状态的改变tManager.listen(listener, PhoneStateListener.LISTEN_CALL_STATE);}}黑名单来电自动挂断需要调用系统远程AIDL Service，需要将com.android.internal.telephony包下的Itelephony.aidl和android.telephony包下的NeighboringCellInfo.aidl复制到项目下。public class BlockMain extends Activity{// 记录黑名单的ListArrayList<String> blockList = new ArrayList<String>();TelephonyManager tManager;// 监听通话状态的监听器CustomPhoneCallListener cpListener;public class CustomPhoneCallListener extends PhoneStateListener{@Overridepublic void onCallStateChanged(int state, String number){switch (state){case TelephonyManager.CALL_STATE_IDLE:break;case TelephonyManager.CALL_STATE_OFFHOOK:break;// 当电话呼入时case TelephonyManager.CALL_STATE_RINGING:// 如果该号码属于黑名单if (isBlock(number)){System.out.println("～～～挂断电话～～～");try{Method method = Class.forName("android.os.ServiceManager").getMethod("getService", String.class);// 获取远程TELEPHONY_SERVICE的IBinder对象的代理IBinder binder = (IBinder) method.invoke(null,new Object[] { TELEPHONY_SERVICE });// 将IBinder对象的代理转换为ITelephony对象ITelephony telephony = ITelephony.Stub.asInterface(binder);// 挂断电话telephony.endCall();}catch (Exception e){e.printStackTrace();}}break;}super.onCallStateChanged(state, number);}}@Overridepublic void onCreate(Bundle savedInstanceState){super.onCreate(savedInstanceState);setContentView(R.layout.main);// 获取系统的TelephonyManager管理器tManager = (TelephonyManager) getSystemService(TELEPHONY_SERVICE);cpListener = new CustomPhoneCallListener();// 通过TelephonyManager监听通话状态的改变tManager.listen(cpListener, PhoneStateListener.LISTEN_CALL_STATE);// 获取程序的按钮，并为它的单击事件绑定监听器findViewById(R.id.managerBlock).setOnClickListener(new OnClickListener(){@Overridepublic void onClick(View v){// 查询联系人的电话号码final Cursor cursor = getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI,null, null, null, null);BaseAdapter adapter = new BaseAdapter(){@Overridepublic int getCount(){return cursor.getCount();}@Overridepublic Object getItem(int position){return position;}@Overridepublic long getItemId(int position){return position;}@Overridepublic View getView(int position,View convertView, ViewGroup parent){cursor.moveToPosition(position);CheckBox rb = new CheckBox(BlockMain.this);// 获取联系人的电话号码，并去掉中间的中划线、空格String number = cursor.getString(cursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER)).replace("-", "").replace(" ", "");rb.setText(number);// 如果该号码已经被加入黑名单、默认勾选该号码if (isBlock(number)){rb.setChecked(true);}return rb;}};// 加载list.xml布局文件对应的ViewView selectView = getLayoutInflater().inflate(R.layout.list, null);// 获取selectView中的名为list的ListView组件final ListView listView = (ListView) selectView.findViewById(R.id.list);listView.setAdapter(adapter);new AlertDialog.Builder(BlockMain.this).setView(selectView).setPositiveButton("确定",new DialogInterface.OnClickListener(){@Overridepublic void onClick(DialogInterface dialog, int which){// 清空blockList集合blockList.clear();// 遍历listView组件的每个列表项for (int i = 0; i < listView.getCount(); i++){CheckBox checkBox = (CheckBox)listView.getChildAt(i);// 如果该列表项被勾选if (checkBox.isChecked()){// 添加该列表项的电话号码blockList.add(checkBox.getText().toString());}}System.out.println(blockList);}}).show();}});}// 判断某个电话号码是否在黑名单之内public boolean isBlock(String phone){System.out.println("呼入号码：" + phone);System.out.println("--------" + blockList);for (String s1 : blockList){if (s1.equals(phone)){return true;}}return false;}}发送短信private final class sendSMSListener implements View.OnClickListener{public void onClick(View v){String number=mobilenumber.getText().toString();String content=smscontent.getText().toString();SmsManager smsManager=SmsManager.getDefault();ArrayList<String> message=smsManager.divideMessage(content);for(String sms:message){smsManager.sendTextMessage(number, null, sms, null, null);}Toast.makeText(getApplicationContext(), "Send success", Toast.LENGTH_LONG).show();}}<uses-permission android:name="android.permission.SEND_SMS"/>群发短信public class GroupSend extends Activity{EditText numbers, content;Button select, send;SmsManager sManager;// 记录需要群发的号码列表ArrayList<String> sendList = new ArrayList<String>();@Overridepublic void onCreate(Bundle savedInstanceState){super.onCreate(savedInstanceState);setContentView(R.layout.main);sManager = SmsManager.getDefault();// 获取界面上的文本框、按钮组件numbers = (EditText) findViewById(R.id.numbers);content = (EditText) findViewById(R.id.content);select = (Button) findViewById(R.id.select);send = (Button) findViewById(R.id.send);// 为send按钮的单击事件绑定监听器send.setOnClickListener(new OnClickListener(){@Overridepublic void onClick(View v){for (String number : sendList){// 创建一个PendingIntent对象PendingIntent pi = PendingIntent.getActivity(GroupSend.this, 0, new Intent(), 0);// 发送短信sManager.sendTextMessage(number, null, content.getText().toString(), pi, null);}// 提示短信群发完成Toast.makeText(GroupSend.this, "短信群发完成", Toast.LENGTH_SHORT).show();}});// 为select按钮的单击事件绑定监听器select.setOnClickListener(new OnClickListener(){@Overridepublic void onClick(View v){// 查询联系人的电话号码final Cursor cursor = getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI,null, null, null, null);BaseAdapter adapter = new BaseAdapter(){@Overridepublic int getCount(){return cursor.getCount();}@Overridepublic Object getItem(int position){return position;}@Overridepublic long getItemId(int position){return position;}@Overridepublic View getView(int position, View convertView,ViewGroup parent){cursor.moveToPosition(position);CheckBox rb = new CheckBox(GroupSend.this);// 获取联系人的电话号码，并去掉中间的中划线、空格String number = cursor.getString(cursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER)).replace("-", "").replace(" " , "");rb.setText(number);// 如果该号码已经被加入发送人名单、默认勾选该号码if (isChecked(number)){rb.setChecked(true);}return rb;}};// 加载list.xml布局文件对应的ViewView selectView = getLayoutInflater().inflate(R.layout.list, null);// 获取selectView中的名为list的ListView组件final ListView listView = (ListView) selectView.findViewById(R.id.list);listView.setAdapter(adapter);new AlertDialog.Builder(GroupSend.this).setView(selectView).setPositiveButton("确定",new DialogInterface.OnClickListener(){@Overridepublic void onClick(DialogInterface dialog,int which){// 清空sendList集合sendList.clear();// 遍历listView组件的每个列表项for (int i = 0; i < listView.getCount(); i++){CheckBox checkBox = (CheckBox) listView.getChildAt(i);// 如果该列表项被勾选if (checkBox.isChecked()){// 添加该列表项的电话号码sendList.add(checkBox.getText().toString());}}numbers.setText(sendList.toString());}}).show();}});}// 判断某个电话号码是否已在群发范围内public boolean isChecked(String phone){for (String s1 : sendList){if (s1.equals(phone)){return true;}}return false;}}音乐播放器public class AudioTest extends Activity{Button play, up, down;ToggleButton mute;AudioManager aManager;@Overridepublic void onCreate(Bundle savedInstanceState){super.onCreate(savedInstanceState);setContentView(R.layout.main);// 获取系统的音频服务aManager = (AudioManager) getSystemService(Service.AUDIO_SERVICE);// 获取界面中3个按钮和一个ToggleButton控件play = (Button) findViewById(R.id.play);up = (Button) findViewById(R.id.up);down = (Button) findViewById(R.id.down);mute = (ToggleButton) findViewById(R.id.mute);// 为play按钮的单击事件绑定监听器play.setOnClickListener(new OnClickListener(){@Overridepublic void onClick(View source){// 初始化MediaPlayer对象，准备播放音乐MediaPlayer mPlayer = MediaPlayer.create(AudioTest.this, R.raw.earth);// 设置循环播放mPlayer.setLooping(true);// 开始播放mPlayer.start();}});up.setOnClickListener(new OnClickListener(){@Overridepublic void onClick(View source){// 指定调节音乐的音频，增大音量，而且显示音量图形示意aManager.adjustStreamVolume(AudioManager.STREAM_MUSIC,AudioManager.ADJUST_RAISE, AudioManager.FLAG_SHOW_UI);}});down.setOnClickListener(new OnClickListener(){@Overridepublic void onClick(View source){// 指定调节音乐的音频，降低音量，而且显示音量图形示意aManager.adjustStreamVolume(AudioManager.STREAM_MUSIC,AudioManager.ADJUST_LOWER, AudioManager.FLAG_SHOW_UI);}});mute.setOnCheckedChangeListener(new OnCheckedChangeListener(){@Overridepublic void onCheckedChanged(CompoundButton source,boolean isChecked){// 指定调节音乐的音频，根据isChecked确定是否需要静音aManager.setStreamMute(AudioManager.STREAM_MUSIC,isChecked);}});}}控制手机振动public class VibratorTest extends Activity{Vibrator vibrator;@Overridepublic void onCreate(Bundle savedInstanceState){super.onCreate(savedInstanceState);setContentView(R.layout.main);// 获取系统的Vibrator服务vibrator = (Vibrator) getSystemService(Service.VIBRATOR_SERVICE);}// 重写onTouchEvent方法，当用户触碰触摸屏时触发该方法@Overridepublic boolean onTouchEvent(MotionEvent event){Toast.makeText(this, "手机振动", Toast.LENGTH_LONG).show();// 控制手机震动2秒vibrator.vibrate(2000);return super.onTouchEvent(event);}}定时自动切换壁纸public class AlarmChangeWallpaper extends Activity{// 定义AlarmManager对象AlarmManager aManager;Button start, stop;@Overridepublic void onCreate(Bundle savedInstanceState){super.onCreate(savedInstanceState);setContentView(R.layout.main);start = (Button) findViewById(R.id.start);stop = (Button) findViewById(R.id.stop);aManager = (AlarmManager) getSystemService(Service.ALARM_SERVICE);// 指定启动ChangeService组件Intent intent = new Intent(AlarmChangeWallpaper.this,ChangeService.class);// 创建PendingIntent对象final PendingIntent pi = PendingIntent.getService(AlarmChangeWallpaper.this, 0, intent, 0);start.setOnClickListener(new OnClickListener(){@Overridepublic void onClick(View arg0){// 设置每隔5秒执行pi代表的组件一次aManager.setRepeating(AlarmManager.RTC_WAKEUP, 0, 5000, pi);start.setEnabled(false);stop.setEnabled(true);Toast.makeText(AlarmChangeWallpaper.this, "壁纸定时更换启动成功啦",Toast.LENGTH_SHORT).show();}});stop.setOnClickListener(new OnClickListener(){@Overridepublic void onClick(View arg0){start.setEnabled(true);stop.setEnabled(false);// 取消对pi的调度aManager.cancel(pi);}});}}public class ChangeService extends Service{// 定义定时更换的壁纸资源int[] wallpapers = new int[]{R.drawable.shuangta,R.drawable.lijiang,R.drawable.qiao,R.drawable.shui};// 定义系统的壁纸管理服务WallpaperManager wManager;// 定义当前所显示的壁纸int current = 0;@Overridepublic int onStartCommand(Intent intent, int flags, int startId){// 如果到了最后一张，系统重新开始if(current >= 4)current = 0;try{// 改变壁纸wManager.setResource(wallpapers[current++]);}catch (Exception e){e.printStackTrace();}return START_STICKY;}@Overridepublic void onCreate(){super.onCreate();// 初始化WallpaperManagerwManager = WallpaperManager.getInstance(this);}@Overridepublic IBinder onBind(Intent intent){return null;}}闹钟public class AlarmActivity extends Activity{MediaPlayer alarmMusic;@Overridepublic void onCreate(Bundle savedInstanceState){super.onCreate(savedInstanceState);// 加载指定音乐，并为之创建MediaPlayer对象alarmMusic = MediaPlayer.create(this, R.raw.alarm);alarmMusic.setLooping(true);// 播放音乐alarmMusic.start();// 创建一个对话框new AlertDialog.Builder(AlarmActivity.this).setTitle("闹钟").setMessage("闹钟响了,Go！Go！Go！").setPositiveButton("确定", new OnClickListener(){@Overridepublic void onClick(DialogInterface dialog, int which){// 停止音乐alarmMusic.stop();// 结束该ActivityAlarmActivity.this.finish();}}).show();}}public class AlarmTest extends Activity{Button setTime;AlarmManager aManager;Calendar currentTime = Calendar.getInstance();@Overridepublic void onCreate(Bundle savedInstanceState){super.onCreate(savedInstanceState);setContentView(R.layout.main);// 获取程序界面的按钮setTime = (Button) findViewById(R.id.setTime);// 获取AlarmManager对象aManager = (AlarmManager) getSystemService(Service.ALARM_SERVICE);// 为“设置闹铃”按钮绑定监听器。setTime.setOnClickListener(new OnClickListener(){@Overridepublic void onClick(View source){Calendar currentTime = Calendar.getInstance();// 创建一个TimePickerDialog实例，并把它显示出来。new TimePickerDialog(AlarmTest.this, 0, // 绑定监听器new TimePickerDialog.OnTimeSetListener(){@Overridepublic void onTimeSet(TimePicker tp,int hourOfDay, int minute){// 指定启动AlarmActivity组件Intent intent = new Intent(AlarmTest.this,AlarmActivity.class);// 创建PendingIntent对象PendingIntent pi = PendingIntent.getActivity(AlarmTest.this, 0, intent, 0);Calendar c = Calendar.getInstance();// 根据用户选择时间来设置Calendar对象c.set(Calendar.HOUR, hourOfDay);c.set(Calendar.MINUTE, minute);// 设置AlarmManager将在Calendar对应的时间启动指定组件aManager.set(AlarmManager.RTC_WAKEUP,c.getTimeInMillis(), pi);// 显示闹铃设置成功的提示信息Toast.makeText(AlarmTest.this, "闹铃设置成功啦", Toast.LENGTH_SHORT).show();}}, currentTime.get(Calendar.HOUR_OF_DAY), currentTime.get(Calendar.MINUTE), false).show();}});}}
