广播的最佳实践——实现强制下线功能

类ActivityCollector

package com.example.broadcastbestpractice;

import android.app.Activity;

import java.util.ArrayList;
import java.util.List;

/**
 * Created by 123 on 2018/10/18.
 */

public class ActivityCollector {
    public static List<Activity>activities=new ArrayList<>();

    public static void addActivity(Activity activity){
        activities.add(activity);

    }

    public static void removeActivity(Activity activity)
    {
        activities.remove(activity);

    }
    public  static void finishAll(){
        for (Activity activity:activities)
        {
            if(!activity.isFinishing()){
                activity.finish();
            }
        }
    }
}
package com.example