When i use view binding it works fine but when i use data binding i receive errors

My Imports :

import android.os.Bundle
import androidx.appcompat.app.AppCompatActivity
import androidx.databinding.DataBindingUtil
import com.example.shoestore.R
import com.example.shoestore.databinding.ActivityMainBinding
import dagger.hilt.android.AndroidEntryPoint

My code :

   val binding  = DataBindingUtil.setContentView(this, R.layout.activity_main)

Error message :

Not enough information to infer type variable T

gradle :

    buildFeatures {
        dataBinding = true
        viewBinding = true
    }

• I tried to disable view binding thought that it conflict with data binding generated classes

• I tried the android studio auto complete thought that i typed it wrong and the auto complete was expecting type of ViewDataBinding!

    val binding  = DataBindingUtil.setContentView<>(this, R.layout.activity_main)

error message for this code :

Type expected

• tried to smart cast and it worked but i cant access the views only the root

val binding  = DataBindingUtil.setContentView(this, R.layout.activity_main) as ViewDataBinding

CodePudding user response：

You can try it like this. In Your Activity or Fragment

• set ContentView In Fragment

   private var binding1: FragmentAddItemBinding? = null
   private val binding get() = binding1!!
  
   override fun onCreateView(
   inflater: LayoutInflater,
   container: ViewGroup?,
   savedInstanceState: Bundle?
  ): View? {
   binding1 = FragmentAddItemBinding.inflate(inflater, container, false)
  
   //Here is your code
  
   return binding.root
  }
  

• set ContentView In the Activity

  private var binding : ActivityMainBinding? = null
  
  
  override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
  
    binding = ActivityMainBinding.inflate(layoutInflater)
    setContentView(binding!!.root)
  
   //Your Code is here 
  
   }
  

It's Work for me so I just hope this work for you

CodePudding user response：

you need to mention the type of variable binding like this:

val binding : ActivityMainBinding = DataBindingUtil.setContentView(this, R.layout.activity_main)

instead of

val binding = DataBindingUtil.setContentView(this, R.layout.activity_main)

This should solve the issue