带有viewpager2的视图绑定错误

Question

我使用视图绑定。当我将其与viewpager2一起使用时，看不到有关viewpager2的任何信息。当不使用viewbinding时，我可以很好地看到viewpager2。有什么办法可以解决？有效的代码效果很好，但是无效的代码不会显示任何错误。

正在工作

class UserActivity3 :AppCompatActivity(){

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)  
        setContentView(R.layout.activity_user3)

        renderViewPager()
        renderTabLayer()

    }

    private fun renderTabLayer() {
        TabLayoutMediator(tabs, viewpager2) { tab, position ->
            tab.text = getString(ResourceStore.tabList[position])
        }.attach()
    }
    private fun renderViewPager() {
        viewpager2.adapter = object : FragmentStateAdapter(this) {

            override fun createFragment(position: Int): Fragment {
                return ResourceStore.pagerFragments[position]
            }

            override fun getItemCount(): Int {
                return ResourceStore.tabList.size
            }
        }
    }


}

不工作

class UserActivity3 :AppCompatActivity(){


    private lateinit var binding: ActivityUser3Binding

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        binding = ActivityUser3Binding.inflate(layoutInflater);
        renderTabLayer()

    }

    private fun renderTabLayer() {
        TabLayoutMediator(binding.tabs, binding.viewpager2) { tab, position ->
            tab.text = getString(ResourceStore.tabList[position])
        }.attach()
    }
    private fun renderViewPager() {
        binding.viewpager2.adapter = object : FragmentStateAdapter(this) {

            override fun createFragment(position: Int): Fragment {
                return ResourceStore.pagerFragments[position]
            }

            override fun getItemCount(): Int {
                return ResourceStore.tabList.size
            }
        }
    }


}

Answer 1

但是，您没有调用renderviewpager()方法。它不是绑定的问题。