Why only first row is showing using Recyclerview gridlayoutmanager

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Adapter Calling:

adherenceDetails.hasFixedSize()
                    adherenceDetails.layoutManager= GridLayoutManager(this@PatientPlanStatus,3)
                    adherenceDetails.adapter= PatientPlanDetails(this@PatientPlanStatus, patientPlanAdherenceData.data?.get(0)?.adherence!!)

Adapter:

class PatientPlanDetails(var mcontext: Context, var patientDatas:ArrayList<AdherencePoJo>): RecyclerView.Adapter<RecyclerView.ViewHolder>() {

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

    val TAG="PatientPlanDetails"


    override fun onCreateViewHolder(parent: ViewGroup?, viewType: Int): RecyclerView.ViewHolder {

        val v = LayoutInflater.from(mcontext).inflate(R.layout.patient_plan_adherence, parent, false)
        return Item(v)
    }

    override fun onBindViewHolder(holder: RecyclerView.ViewHolder?, position: Int) {

        //Log.i(TAG,"On Bind")
        (holder as Item).bindData(patientDatas.get(position),mcontext)


    }

    class Item(itemView: View) : RecyclerView.ViewHolder(itemView) {


        fun bindData(patienData: AdherencePoJo, context: Context) {

            val TAG="PatientPlanDetails"

        }

    }


}

getItemCount() returning the correct size. But only first row is showing. Please check the image enter image description here Card has actual height but the item inside it are not visible. I am getting no log in the logout also.

2 Answers

Try with this property in your RecyclerView:

app:layout_behavior="@string/appbar_scrolling_view_behavior"

enter image description here

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