国产一级a片免费看高清,亚洲熟女中文字幕在线视频,黄三级高清在线播放,免费黄色视频在线看

1 package com.example.remoteservice;  2     interface IRemoteService {  3         void doSomething ( );4     }  

 1 public class RemoteService extends Service { 2         @Override   3         public IBinder onBind(Intent intent) {   4            if (IRemoteService.class.getName().equals(intent.getAction())) { 5                return mRemoteBinder;  //把一個(gè)Binder對(duì)象返回出去。其實(shí)是返回到AMS里面了。AMS：ActivityManagerService。 6            }   7             return null;   8         } 9         private final IRemoteService.Stub mRemoteBinder =new IRemoteService.Stub() {//實(shí)現(xiàn)Stub對(duì)象要求的方法，即AIDL的實(shí)現(xiàn)。10            public void dosomething() {11                blablabla;  12            }  13         };  14     }

 1 public class Helloworld extends Activity   2 {   3     ... 4     @Override   5     public void onCreate(Bundle savedInstanceState)   6     {   7        super.onCreate(savedInstanceState);   8        setContentView(R.layout.main);   9        bindService(new Intent(IRemoteService.class.getName()),mRemoteConnection,  10                     Context.BIND_AUTO_CREATE);  // 1.觸發(fā)Service端回調(diào)onBind()。     （1）11        ...12        mRemoteService.getPid(); //3. 會(huì)通過(guò)Binder IPC 將操作請(qǐng)求發(fā)送到Service端的Stub實(shí)現(xiàn)。    （3）13        ...14     }  15 16     private ServiceConnection mRemoteConnection = new ServiceConnection() {17        public void onServiceConnected(ComponentName className, IBinder service) {     （2）18            Log.i("binder_test","IBinder service : " + service.getClass());//通過(guò)Log發(fā)現(xiàn)，這個(gè)service是BinderProxy object，BinderProxy是什么呢？後面再說(shuō)。暫時(shí)按字面理解為Binder代理對(duì)象。19 20 21            mRemoteService = IRemoteService.Stub.asInterface(service); // 2.通過(guò)asInterface,把Binder代理對(duì)象轉(zhuǎn)化成接口。22        }  23        public void onServiceDisconnected(ComponentName className) {  24            mRemoteService = null;  25        }  26 };     27 }   

 1 package com.example.remoteservice;   2  3     public interface IRemoteService extends android.os.IInterface { 1   4         public static abstract class Stub extends android.os.Binder implements   5                com.example.remoteservice.IRemoteService {//繼承Binder，并且實(shí)現(xiàn)了IRemoteService接口 6              ... 7            public static com.example.remoteservice.IRemoteService asInterface(android.os.IBinder obj) {//根據(jù)傳進(jìn)來(lái)的IBinder對(duì)象創(chuàng)建一個(gè)Service 代理對(duì)象給客戶端。 8                ... 9                android.os.IInterface iin = (android.os.IInterface)obj.queryLocalInterface(DESCRIPTOR);  10                if (((iin != null) && (iin instanceof com.example.remoteservice.IRemoteService))) {  11                     return((com.example.remoteservice.IRemoteService) iin);  12                }  13                return new com.example.remoteservice.IRemoteService.Stub.Proxy(obj);  //看，返回的是Proxy這個(gè)對(duì)象。就是Service代理對(duì)象。14            }  15 16            public android.os.IBinder asBinder() {  17                return this;  18            }  19 20            @Override  21            public boolean onTransact(int code, android.os.Parcel data, android.os.Parcel reply,  22                     int flags)throwsandroid.os.RemoteException { //把IPC消息取出來(lái)解析，找到具體執(zhí)行方法。23                switch (code) {  //根據(jù)code值，找到方法。24                     case INTERFACE_TRANSACTION: {  25                     }  26                     case TRANSACTION_doSomething: { 27                     }  28                }  29                return super.onTransact(code, data, reply, flags);    30            }  31 32            private static class Proxy implements com.example.remoteservice.IRemoteService {//實(shí)現(xiàn)了IRemoteService接口33                private android.os.IBinder mRemote; //實(shí)際上是BinderProxy對(duì)象34               ...35                public int doSomething() throws android.os.RemoteException {36                      ...37                         mRemote.transact(Stub.TRANSACTION_doSomething,_data, _reply, 0);//通過(guò)BinderProxy將命令發(fā)送出去。 38                     ….39            }  40             static final int TRANSACTION_doSomething = (android.os.IBinder.FIRST_CALL_TRANSACTION + 0);   //這玩意就是用來(lái)區(qū)別方法的code。41         }  42 43         public void doSomething() throwsandroid.os.RemoteException;   44     }