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2022-11-24 2af932533ef851bf983385244e9912976dbd4daa

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package com.lechange.demo.handler; 
 
import android.os.Handler; 
import android.os.Message; 
import android.support.v4.app.FragmentActivity; 
 
import java.lang.ref.WeakReference; 
 
public abstract class ActivityHandler extends Handler { 
        private WeakReference<FragmentActivity> mActivity; 
        public ActivityHandler(FragmentActivity activity){ 
            super(); 
            this.mActivity = new WeakReference<FragmentActivity>(activity); 
        } 
        public abstract  void handleMsg(Message msg); 
        @Override 
        public void handleMessage(Message msg) { 
            FragmentActivity activity = mActivity.get(); 
            if(activity == null){ 
                return; 
            } 
            handleMsg(msg); 
            super.handleMessage(msg); 
        } 
    }