由于handle与activity生命周期不同，所有如果以内部类的形式访问handler会导致handler一直占用activity的应用，导致activity无法销毁，解决方案：

Activity 里调用：

   private final  Handler handler = new MyHandler(AdvertingPageActivity.this, new MyHandlerInterface() {
        @Override
        public void goJump() {
            ForLog.showError("--我收到通知了");
           //do something
        }
    });

handler.sendEmptyMessageDelayed(0, 1000);

自定义handler类

package com.jiutouxiang.activity.login.adverting_page;

import android.app.Activity;
import android.os.Handler;
import android.os.Message;
import android.widget.TextView;

import com.jiutouxiang.R;
import com.jiutouxiang.toolkits.ForLog;

import java.lang.ref.WeakReference;

/**
 * Created by Administrator on 2017/9/29 0029.
 */

public  class MyHandler extends Handler {
    private int count=3;
    WeakReference<Activity> mActivityReference;
    private MyHandlerInterface myHandlerInterface;
    MyHandler(Activity activity ,MyHandlerInterface myHandlerInterface) {
        ForLog.showError(activity.toString());
        mActivityReference= new WeakReference<Activity>(activity);
        this.myHandlerInterface=myHandlerInterface;
    }

    @Override
    public void handleMessage(Message msg) {
        final Activity activity = mActivityReference.get();
        if (activity != null) {
            if (msg.what == 0) {
                TextView tv_title=(TextView)activity.findViewById(R.id.tv_title);
                int i=getCount();
                if(i==0){
                    ForLog.showError("---我要去跳转了");
                    myHandlerInterface.goJump();
                    return;
                }else {
                    tv_title.setText("" +i);
                    this.sendEmptyMessageDelayed(0, 1000);
                    return;
                }
            }
        }
        ForLog.showError("---我要去跳转了");
        myHandlerInterface.goJump();
        return;
    }

    private int getCount(){
        count--;
        return count;
    }
}

package com.jiutouxiang.activity.login.adverting_page;

/**
 * Created by Administrator on 2017/9/29 0029.
 */

public interface MyHandlerInterface {
    void goJump();
}