aidl ( 五) 三的代码优化

本文代码aidlclient1,aidlserver2

在aidl ( 三) 后台service通知前台activity中，MyService本身在进程com.myservice中，MyService内部还有个计时线程，MyService还有个主线程，这里有一个进程，2个线程。

MyService的主线程除了生命周期函数基本不做其他事情，能否把2个线程合并成一个呢？

当然可以的，MyService的主线程是有Looper'的，可以用handler来计时。

代码如下：

package com.example.fish.aidlserver1;

import android.app.Service;
import android.content.Intent;
import android.os.Handler;
import android.os.IBinder;
import android.os.Looper;
import android.os.Message;
import android.os.RemoteException;
import android.util.Log;

import com.aidl.server.IMyAidlInterface;
import com.fishlib.log.LogUtil;
import com.fishlib.util.system.SystemUtil;

public class MyService extends Service {
    private boolean quit;

    private int count;
    public static final int TIMER = 1;
    private ICallback mCallback;
    private IMyAidlInterface.Stub mBinder = new IMyAidlInterface.Stub() {

        @Override
        public int getCount() throws RemoteException {
            return count;
        }

        @Override
        public double complexCal(String str, int t) throws RemoteException {
            int ret = str.hashCode() + t;
            return ret * 0.3;
        }

        @Override
        public void setCallback(ICallback call) throws RemoteException {
            LogUtil.d("setcallback" + call);
            LogUtil.thread("set callback");
            mCallback = call;

        }
    };
    private Handler handler = new Handler() {
        @Override
        public void handleMessage(Message msg) {
            switch (msg.what) {
                case TIMER:
                    if(!quit)
                    {
                        count++;
                        if (mCallback != null) {
                            LogUtil.d("callback");
                            try {
                                mCallback.showTime(count);
                            } catch (RemoteException e) {
                                e.printStackTrace();
                            }
                        } else {
                            LogUtil.d("callback null");
                        }
                        sendEmptyMessageDelayed(TIMER,2000);
                    }

                    break;
                default:
                    super.handleMessage(msg);
            }

        }
    };

    @Override
    public void onCreate() {
        super.onCreate();

        LogUtil.thread("service main");
        LogUtil.d("onCreate process name " + SystemUtil.getCurProcessName(MyService.this));
        LogUtil.d("Service is Created");
        count=0;
        handler.sendEmptyMessageDelayed(TIMER,2000);

    }

    @Override
    public void onDestroy() {
        LogUtil.d("onDestroy process name " + SystemUtil.getCurProcessName(MyService.this));
        quit = true;
        super.onDestroy();
    }

    @Override
    public IBinder onBind(Intent intent) {
        LogUtil.d("onBind process name " + SystemUtil.getCurProcessName(MyService.this));
        return mBinder;
    }

}