android - Android Kotlin-对话框 fragment 错误(以下任何函数均不能使用提供的参数来调用)

Question

我在代码的这一行显示此错误:

 quantityFragment.show(fragManager, "Quantity")

None of the following functions can be called with the arguments supplied. show(FragmentManager!, String!) defined in com.company.kotlinecommerce.QuantityFragment show(FragmentTransaction!, String!) defined in com.company.kotlinecommerce.QuantityFragment

产品适配器

        itemView.bAddToCart.setOnClickListener {
            UserInfo.tempProdId = tempProdId

            // Show the fragment

            var quantityFragment = QuantityFragment()
            var fragManager = (itemView.context as Activity).fragmentManager

            quantityFragment.show(fragManager, "Quantity")

        }

数量片段

class QuantityFragment : DialogFragment() {

override fun onCreateView(
  inflater: LayoutInflater, 
  container: ViewGroup?,
  savedInstanceState: Bundle?): View? {
    // Inflate the layout for this fragment
    return inflater.inflate(R.layout.fragment_quantity, container, false)
  }
}

请帮帮我^ _ ^

Answer 1

您正在使用android.support.v4.app.DialogFragment，因此我们需要传递supportFragmentManager而不是将fragmentManager传递给show方法