Android bindService

• bindService是异步的，方法调用最好是放在OnServiceConnected
• 实现ServiceConnection.
  • 你的实现必须重写两个回调方法：
    • onServiceConnected()
    • 系统调用这个来传送在service的onBind()中返回的IBinder．
    • OnServiceDisconnected()
    • Android系统在同service的连接意外丢失时调用这个．比如当service崩溃了或被强杀了．当客户端解除绑定时，这个方法不会被调用．
• google开源的android系统有强杀一个app的方法，如下：

 private void KillRTMPProcess() {
        ActivityManager manager = (ActivityManager)getSystemService(ACTIVITY_SERVICE);
        try {
            Method method = Class.forName("android.app.ActivityManager").getMethod("forceStopPackage", String.class);
            method.invoke(manager, RTMP_APP);

            iThirdPartyCallback = null;
            callThirdParty = null;
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

• • 此方法需要权限

    <uses-permission android:name="android.permission.FORCE_STOP_PACKAGES"/>

如果在客户端调用杀死远程服务app可以使用以上方法，这时就会走onServiceDisconnected

• 最好在onServiceConnected里面设置死亡监听，这样服务意外死亡就会收到监听

　　

    private IBinder.DeathRecipient mDeathRecipient = new IBinder.DeathRecipient() {
        @Override
        public void binderDied() {
            Log.i(TAG, "binderDied: ");
            if (callThirdParty == null){
                Log.i(TAG, "binderDied: rmeote==null");
                return;
            }
            callThirdParty.asBinder().unlinkToDeath(this,0);
            callThirdParty = null;
            bindService(intent,serviceConnection,BIND_AUTO_CREATE);
        }
    };

 ServiceConnection serviceConnection = new ServiceConnection() {
        @Override
        public void onServiceConnected(ComponentName name, IBinder service) {
            Log.i(TAG, "onServiceConnected: ");
            callThirdParty = IThirdPartyCase.Stub.asInterface(service);
            try {
                service.linkToDeath(mDeathRecipient,0);
                callThirdParty.registeCallback(iThirdPartyCallback);

            } catch (RemoteException e) {
                e.printStackTrace();
            }
        }

        @Override
        public void onServiceDisconnected(ComponentName name) {
            Log.i(TAG, "onServiceDisconnected: ");
          

        }
    };

• •  意外死亡 重新绑定服务在binderdied方法里进行（这个方法运行Binder线程不是客户端的UI线程）

• 解绑的时候也要解除死亡监听、remotecallback

  if (callThirdParty != null && callThirdParty.asBinder().isBinderAlive()){
              try {
                  callThirdParty.asBinder().unlinkToDeath(mDeathRecipient,0);
                  callThirdParty.unregisteCallback(iThirdPartyCallback);
              } catch (RemoteException e) {
                  e.printStackTrace();
              }
          }
          unbindService(serviceConnection);