安卓从popupwindow跳转到Activity页面

在一个已出现的poupwindow中，点击页面上的某个按钮，页面将进行跳转到另一个Activity中。popupwindow代码如下：

package com.cn.gordon.exhibition.walk.popup;

import com.cn.gordon.exhibition.walk.activity.ForumArrangementActivity;
import com.cn.gordon.exhibition.walk.activity.R;
import com.cn.gordon.exhibition.walk.activity.VisitPlanActivity;

import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.graphics.drawable.ColorDrawable;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.LinearLayout;
import android.widget.PopupWindow;
import android.widget.RelativeLayout.LayoutParams;

public class ArrangementPopupWindow extends PopupWindow {
    private View contentView;
    public ArrangementPopupWindow(final Activity context){
        LayoutInflater inflater = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        contentView = inflater.inflate(R.layout.popupwindow_arrangement, null);
        //int h = context.getWindowManager().getDefaultDisplay().getHeight();
        int w = context.getWindowManager().getDefaultDisplay().getWidth();
        // 设置SelectPicPopupWindow的View
        this.setContentView(contentView);
        // 设置SelectPicPopupWindow弹出窗体的宽
        this.setWidth(w / 2 + 50);
        // 设置SelectPicPopupWindow弹出窗体的高
        this.setHeight(LayoutParams.WRAP_CONTENT);
        // 设置SelectPicPopupWindow弹出窗体可点击
        this.setFocusable(true);
        this.setOutsideTouchable(true);
        // 刷新状态
        this.update();
        // 实例化一个ColorDrawable颜色为半透明
        ColorDrawable dw = new ColorDrawable(0000000000);
        // 点back键和其他地方使其消失,设置了这个才能触发OnDismisslistener ，设置其他控件变化等操作
        this.setBackgroundDrawable(dw);
        // mPopupWindow.setAnimationStyle(android.R.style.Animation_Dialog);
        // 设置SelectPicPopupWindow弹出窗体动画效果
        //this.setAnimationStyle(R.style.AnimationPreview);
        LinearLayout layout_forum = (LinearLayout) contentView
                .findViewById(R.id.layout_forum);
        LinearLayout layout_visitplan = (LinearLayout) contentView
                .findViewById(R.id.layout_visitplanarrangement);
        
        layout_forum.setOnClickListener(new OnClickListener() {
            
            @Override
            public void onClick(View v) {
                if (context.getClass().equals(VisitPlanActivity.class)) {
                    Intent in = new Intent(context,ForumArrangementActivity.class);
                    context.startActivity(in);
                    
                }
                ArrangementPopupWindow.this.dismiss(); 
            }
        });
        

        layout_visitplan.setOnClickListener(new OnClickListener() {
    
            @Override
            public void onClick(View v) {
                if (context.getClass().equals(ForumArrangementActivity.class)) {
                    Intent in = new Intent(context,VisitPlanActivity.class);
                    context.startActivity(in);
                }
                
                ArrangementPopupWindow.this.dismiss(); 
            }
        });
                
    }
    
    public void showPopupWindow(View parent) {  
        if (!this.isShowing()) {  
            // 以下拉方式显示popupwindow  
            this.showAsDropDown(parent, parent.getLayoutParams().width / 2, 18);  
        } else {  
            this.dismiss();  
        }  
    }  
}

在popupwindow中需要用到上一个页面传递过来的context，通过context来调用startActivity实现页面的跳转。