BottomSheetDialogFragment.viewBinding

Question

我很难在BottomSheets上为ViewBinding做一个属性委托。

一般的想法与此类似

对于片段我使用像这样

fun <T : ViewBinding> Fragment.viewBinding(viewBindingFactory: (View) -> T) =
FragmentViewBindingDelegate(this, viewBindingFactory)

在作为 Fragments 的 BottomSheetsDialogFragments 上，它不接受委托。

fun <T : ViewBinding> BottomSheetDialogFragment.viewBinding(viewBindingFactory: (View) -> T) =
FragmentViewBindingDelegate(this, viewBindingFactory)

BottomSheets 的生命周期与常规 Fragments 相同，所以我不希望有任何问题。

任何人都想出了一个解决方案？

Answer 1

像这样在BottomSheetFragment中实现ViewBinding（对我有用）：

class CustomBottomSheet : BottomSheetDialogFragment() {

private lateinit var binding: CustomBottomSheetBinding

override fun onCreateView(
    inflater: LayoutInflater,
    container: ViewGroup?,
    savedInstanceState: Bundle?
): View {
    binding = CustomBottomSheetBinding.inflate(inflater, container, false)
    return binding.root
}

override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
    super.onViewCreated(view, savedInstanceState)

    //onClick listener
    binding.button.setOnClickListener {
        Toast.makeText(context, "Clicked", Toast.LENGTH_LONG).show()
    }
}

}

Answer 2

您仍然可以使用Gabor的FragmentViewBindingDelegate和扩展。你只需要在里面膨胀视图onCreateView()。

例如：

import android.os.Bundle
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import com.google.android.material.bottomsheet.BottomSheetDialogFragment
import com.zhuinden.fragmentviewbindingdelegatekt.viewBinding


class ExampleBottomSheet : BottomSheetDialogFragment() {

    //Using ::bind here since the view is already inflated in onCreateView()
    private val binding by viewBinding(YourCustomViewBinding::bind)


    override fun onCreateView(
        inflater: LayoutInflater,
        container: ViewGroup?,
        savedInstanceState: Bundle?
    ): View? {
        return inflater.inflate(R.layout.your_custom_view, container, false)
    }

    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
        super.onViewCreated(view, savedInstanceState)

        //Use binding here or wherever you need it
    }
}