ViewPager 自定义PagerAdapter

自定义PagerAdapter

在Activity使用

val data = ArrayList()

data.add(view)

val viewAdapter = ViewAdapter(data)

viewPager.adapter = viewAdapter

自定义PagerAdapter源代码

import android.view.View

import android.view.ViewGroup

import androidx.viewpager.widget.PagerAdapter

class ViewAdapter(val data: ArrayList) : PagerAdapter() {

override fun getCount(): Int {

return data.size

    }

override fun instantiateItem(container: ViewGroup, position: Int): Any {

container.addView(data[position])

return data[position]

}

override fun destroyItem(container: ViewGroup, position: Int, obj: Any) {

container.removeView(data[position])

}

override fun isViewFromObject(view: View, obj: Any): Boolean {

return view == obj

}

}