[置顶] android页面管理器。可以实现完整退出android软件

 

原理：用链表存储activity页面，然后当你退出的时候就按退出，把链表里面所有activity都关闭掉

package com.by2n.application;

import java.util.LinkedList;
import java.util.List;

import android.app.Activity;

public class Application extends android.app.Application {

	@Override
	public void onLowMemory() {
		// TODO Auto-generated method stub
		super.onLowMemory();
		System.gc();
	}

	private List<Activity> mList = new LinkedList<Activity>();
	private static Application instance;
	
	public synchronized static Application getInstance(){
		if(null == instance){
			instance = new Application();
		}
		return instance;
	}
	
	public void addActivity(Activity activity){
		mList.add(activity);
	}
	
	public void exit(){
		try{
		for(Activity a:mList){
			if(a != null){
				a.finish();
			}
		}
		}catch(Exception e){
			e.printStackTrace();
		}finally{
			System.exit(0);
		}
	}
}