android 应用 主服务

package com.app.biqoo.logic;

import java.util.ArrayList;
import java.util.LinkedList;
import java.util.Queue;

import android.app.Activity;
import android.app.Service;
import android.content.Intent;
import android.os.Handler;
import android.os.IBinder;
import android.os.Message;

import com.app.biqoo.bean.Task;
import com.app.biqoo.ui.IBiqooActivity;



public class MainService extends Service implements Runnable {
    
    //任务队列
    private static Queue<Task> tasks=new LinkedList<Task>();
    
    private static ArrayList<Activity> appActivities =new ArrayList<Activity>();
    
    //是否运行县城
    private boolean isRun;
    
    Handler handler=new Handler(){
        public void handleMessage(android.os.Message msg){
            switch (msg.what){
                case Task.WELCOME:
                    //首页
                    
                    IBiqooActivity activity =(IBiqooActivity)getActivityByName("WelcomeActivity");
                    activity.refresh();
                    break;
                default :
                    break;
            }
        }
    };
    
    /*
     * 根据Activity的Name获取Activity对象
     */
    private Activity getActivityByName(String name){
        if(!appActivities.isEmpty()){
            for(Activity activity:appActivities){
                if(null!=activity){
                    if(activity.getClass().getName().indexOf(name)>0){
                        return activity;
                    }
                }
            }
        }
        return null;        
        
    }
    
    /*
     * 添加一个Activity对象
     */
    public static void addActivity(Activity activity){
        appActivities.add(activity);
    }
    
    
    /*
     * 添加任务到任务队列中
     */
    public static void newTask(Task t){
        tasks.add(t);
    }
    
    @Override
    public void onCreate() {
        // TODO 自动生成的方法存根
        isRun=true;
        Thread thread =new Thread(this);
        thread.start();
        super.onCreate();
    }

    @Override
    public void run() {
        // TODO 自动生成的方法存根
        while(isRun){
            Task task=null;
            if(!tasks.isEmpty()){
                task=tasks.poll();//执行完任务后把任务从队列中移除
                if(null!=task){
                    doTask(task);
                }
                
            }
            try {
                Thread.sleep(1000);
            } catch (Exception e) {
                // TODO 自动生成的 catch 块
                e.printStackTrace();
            }
        }
        
        
    }
    
    //处理任务
    private void doTask(Task t){
        Message msg=handler.obtainMessage();
        msg.what=t.getTaskId();
        switch (t.getTaskId()){
            case Task.WELCOME:
                System.out.println("doTask>>>>> welcome");
                msg.obj="首页";
                break;
            default :
                break;
        }
        handler.sendMessage(msg);
    }
    
    @Override
    public IBinder onBind(Intent intent) {
        // TODO 自动生成的方法存根
        return null;
    }

}







package com.app.biqoo.bean;

import java.util.Map;

public class Task {    

    //任务ID
    private int taskId;
    
    public static final int WELCOME = 0;
    
    //参数
    private Map<String,Object> taskParams;
    
    public Task() {
        super();
    }

    public Task(int taskId, Map<String, Object> taskParams) {
        super();
        this.taskId = taskId;
        this.taskParams = taskParams;
    }

    public int getTaskId() {
        return taskId;
    }

    public void setTaskId(int taskId) {
        this.taskId = taskId;
    }

    public Map<String, Object> getTaskParams() {
        return taskParams;
    }

    public void setTaskParams(Map<String, Object> taskParams) {
        this.taskParams = taskParams;
    }
    
    
    
}






package com.app.biqoo.ui;

public interface IBiqooActivity {
        
        /*
         * 初始化数据
         */
        void init();
        
        /*         *
         * 刷新UI
         */
        
        void refresh();
        
}