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创建服务和Binder的子类

public class MyServerce extends Service {
       @Override    public void onCreate() {        super.onCreate();        Log.d("MyServerce","创建服务");    }    @Override    public int onStartCommand(Intent intent, int flags, int startId) {        Log.d("MyServerce","每次服务启动时候调用");        return super.onStartCommand(intent, flags, startId);    }    @Override    public void onDestroy() {        Log.d("MyServerce","服务销毁");        super.onDestroy();    }    @Override    public void onConfigurationChanged(Configuration newConfig) {        Log.d("MyServerce","配置更改");        //服务停止        stopSelf();        super.onConfigurationChanged(newConfig);    }    @Override    public void onLowMemory() {        Log.d("MyServerce","内存不足");        super.onLowMemory();    }    @Override    public void onTrimMemory(int level) {        Log.d("MyServerce","压缩处理内存");        super.onTrimMemory(level);    }    @Nullable    @Override    public IBinder onBind(Intent intent) {        return myBinder;    }    @Override    public boolean onUnbind(Intent intent) {        return super.onUnbind(intent);    }    @Override    public void onRebind(Intent intent) {        super.onRebind(intent);    }    @Override    public void onTaskRemoved(Intent rootIntent) {        super.onTaskRemoved(rootIntent);    }    //内部类MyBinder    private MyBinder myBinder = new MyBinder();    class MyBinder extends Binder {        public MyBinder() {            super();        }        public void startDownload(){        }        public int getProgress(){            return 0;        }        @Override        public void attachInterface(IInterface owner, String descriptor) {            super.attachInterface(owner, descriptor);        }        @Override        public String getInterfaceDescriptor() {            return super.getInterfaceDescriptor();        }        @Override        public boolean pingBinder() {            return super.pingBinder();        }        @Override        public boolean isBinderAlive() {            return super.isBinderAlive();        }        @Override        public IInterface queryLocalInterface(String descriptor) {            return super.queryLocalInterface(descriptor);        }        @Override        protected boolean onTransact(int code, Parcel data, Parcel reply, int flags) throws RemoteException {            return super.onTransact(code, data, reply, flags);        }        @Override        public void dump(FileDescriptor fd, String[] args) {            super.dump(fd, args);        }        @Override        public void dumpAsync(FileDescriptor fd, String[] args) {            super.dumpAsync(fd, args);        }        @Override        public void linkToDeath(DeathRecipient recipient, int flags) {            super.linkToDeath(recipient, flags);        }        @Override        public boolean unlinkToDeath(DeathRecipient recipient, int flags) {            return super.unlinkToDeath(recipient, flags);        }        @Override        protected void finalize() throws Throwable {            super.finalize();        }        @Override        protected void dump(FileDescriptor fd, PrintWriter fout, String[] args) {            super.dump(fd, fout, args);        }    }}

在Activity中实现绑定

public class Test1Activity extends Activity implements View.OnClickListener{
     private MyServerce.MyBinder myBinder;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.test1);        ((Button)findViewById(R.id.button_start)).setOnClickListener(this);        ((Button)findViewById(R.id.button_stop)).setOnClickListener(this);    }    @Override    public void onClick(View view) {        switch (view.getId()){            case R.id.button_start:                //                Intent bindintent = new Intent(this,MyServerce.class);                //绑定服务               bindService(bindintent,serviceConnection,BIND_AUTO_CREATE);                break;            case R.id.button_stop:                //解绑服务               unbindService(serviceConnection);                break;            default:                break;        }    }    private ServiceConnection serviceConnection = new ServiceConnection() {        @Override        public void onServiceConnected(ComponentName componentName, IBinder iBinder) {            Log.d("ServiceConnection","服务成功绑定");            myBinder = (MyServerce.MyBinder) iBinder;            myBinder.startDownload();            myBinder.getProgress();        }        @Override        public void onServiceDisconnected(ComponentName componentName) {            Log.d("ServiceConnection","服务解除绑定");        }    };}

后面再写前台服务和IntentService，以及服务下载，写的比较没有逻辑见谅

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