Access Database Handler Inside Fragment

Issue

I am trying to access database Handler inside a fragment but its throwing me does not have companion object error. I tried database handler query and its working fine. Any help is appreciated.

Language Used

Kotlin

Code

class OneFragment : Fragment() {

     companion object
{
//Error in the below context
    var db=TestDatabaseHandler(Context)
}

    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?,savedInstanceState: Bundle?): View? {
    {
    
    var a=db.readData()
    
    }
    
    }

Solution

You cannot access context inside companion object {}. Instead change db to be a field to class OneFragment like this

class OneFragment : Fragment() {

    val db by lazy { TestDatabaseHandler(context!!) }

    override fun onCreateView(...)
        var a = db.readData()
    }
}

Reference - Property delegation in Kotlin by Antonio Leiva

Answered By - Yaswant Narayan