viewPager问题

问题遇到的现象和发生背景

问题相关代码，请勿粘贴截图

            SetContentView(Resource.Layout.activity_main);
            // Create your application here
            viewPapgeTitle = FindViewById<ViewPager>(Resource.Id.viewPager1);
            viewLists = new List<View>();
            LayoutInflater li = LayoutInflater;
            viewLists.Add(li.Inflate(Resource.Layout.layout1, null, false));
            viewLists.Add(li.Inflate(Resource.Layout.layout2, null, false));
            viewLists.Add(li.Inflate(Resource.Layout.layout3, null, false));
            titleList = new List<string>() {
                "红褐色","黄色","白色"
            };
            adapter = new MyPagerAdapter2(viewLists, titleList);
            viewPapgeTitle.Adapter = adapter;
            ////////////如何获取layout1布局下的button_layout1 按钮1
            ///////////////如何获取layout2布局下的button_layout2 按钮2
            button_layout1 = FindViewById<Button>(Resource.Id.button_layout1);
            button_layout2 = FindViewById<Button>(Resource.Id.button_layout2);

运行结果及报错内容

button_layout1 空 如何获取

我的解答思路和尝试过的方法

button_layout1 空 如何获取

我想要达到的结果

button_layout1 空 如何获取

题主写法：

button_layout1 = FindViewById<Button>(Resource.Id.button_layout1);

这种默认从 Layout.activity_main 布局中查找button_layout1,而button_layout1存在于Viewpager的View中。肯定会null

要做的就是从button_layout1 所在的父布局中查找（button_layout1）

更改写法如下，试试

            LayoutInflater li = LayoutInflater;
            View layout1=li.Inflate(Resource.Layout.layout1, null, false);
            View layout2=li.Inflate(Resource.Layout.layout2, null, false);
            View layout3=li.Inflate(Resource.Layout.layout3, null, false);
            viewLists.Add(layout1);
            viewLists.Add(layout2);
            viewLists.Add(layout3);
            titleList = new List<string>() {
                "红褐色","黄色","白色"
            };
            adapter = new MyPagerAdapter2(viewLists, titleList);
            viewPapgeTitle.Adapter = adapter;
            ////////////如何获取layout1布局下的button_layout1 按钮1
            ///////////////如何获取layout2布局下的button_layout2 按钮2
            button_layout1 = layout1.FindViewById<Button>(Resource.Id.button_layout1);
            button_layout2 = layout2.FindViewById<Button>(Resource.Id.button_layout2);