java - 单击 ViewPager 中的特定页面后如何跳转到另一个 Activity ？

Question

当我跳转到其他 Activity 时，我无法在 ViewPager 中转到下一个 Activity 我在第一个 Activity 中创建了一个“幻灯片图像”；其中有五个图像。滑动最后一个图像(第五张)后，它应该转到下一个 Activity ，say-activity_next.xml。

My RoomSelect class :

          mslidViewPager = (ViewPager) findViewById(R.id.slideViewPager);

           sliderAdapter=new SliderAdapter(this);

           mslidViewPager.setAdapter(sliderAdapter);

My slideractivity class

  public String[] slide_headings = {
        "DELUX",
        "SEMI DELUX",
        "Dormitory"
  };

  public String[] s1= {
        "Apply for Delux",
        "Apply for Semi-Delux",
        "Apply for Dormitory"

  };


  public Object instantiateItem(@NonNull ViewGroup container, final int position) { 

     layoutInflater =(LayoutInflater) context.getSystemService(context.LAYOUT_INFLATER_SERVICE);
     View view=layoutInflater.inflate(R.layout.slide_layout,container,false);



     imageView.setImageResource(slide_images[position]);
     slideHeading.setText(slide_headings[position]);
     slideDes.setText(slide_descrpition [position]);
     but.setText(s1 [position]);





     view.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
                if(position==0) {
                    Toast.makeText(context, "delux", Toast.LENGTH_SHORT).show();

                }
                else if (position==1) {
                    Toast.makeText(context, "semi-delux", Toast.LENGTH_SHORT).show();
                }
                else {
                    Toast.makeText(context, "Dormitory", Toast.LENGTH_SHORT).show();

                }
        }
    });

    container.addView(view);

    return view;
}

Answer 1

在适配器中执行以下操作:

override fun instantiateItem(container: ViewGroup, position: Int): Any {
    val inflater = LayoutInflater.from(context)
    val itemView = context.layoutInflater.inflate(R.layout.row, container, false) as ViewGroup
    val heading = itemView.findViewById(R.id.textView) as TextView
    if (position < list.size)
        heading.setText(list[position])
    container.addView(itemView)

    return itemView

}

override fun destroyItem(container: ViewGroup, position: Int, `object`: Any) {
    container.removeView(`object` as LinearLayout)
}

override fun isViewFromObject(view: View, `object`: Any): Boolean {
    return view === `object`
}

override fun getCount(): Int {
    return list.size+1
}

内部 Activity :

 viewPager.addOnPageChangeListener(object : ViewPager.OnPageChangeListener {
        override fun onPageScrollStateChanged(state: Int) {

        }

        override fun onPageScrolled(
            position: Int,
            positionOffset: Float,
            positionOffsetPixels: Int
        ) {

        }

        override fun onPageSelected(position: Int) {
            if (position == list.size) {
                startActivity(Intent(this@MainActivity, SecondActivity::class.java))
            }

        }

    })