UsageBinderHeader.java

/*
 * Licensed Materials - Property of IBM
 * © Copyright IBM Corporation 2015. All Rights Reserved.
 */

package com.ibm.mil.readyapps.telco.usage;

import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.LinearLayout;

import com.ibm.mil.readyapps.telco.R;
import com.ibm.mil.readyapps.telco.utils.RecyclerDivider;
import com.ibm.mil.readyapps.telco.views.RobotoTextView;
import com.yqritc.recyclerviewmultipleviewtypesadapter.DataBindAdapter;
import com.yqritc.recyclerviewmultipleviewtypesadapter.DataBinder;

import butterknife.Bind;
import butterknife.ButterKnife;

/**
 * Binder to append the App Usage header
 * to the corresponding recyclerView ViewHolder
 */
public class UsageBinderHeader extends DataBinder<UsageBinderHeader.DataHeaderViewHolder> {

    private RecyclerDivider myAppHeader;
    /**
    * Constructor to initialize the App Usage binder
    * @param dataBindAdapter the adapter that uses this binder to populate the recyclerView
    *               used to access application resources
    */
    public UsageBinderHeader(DataBindAdapter dataBindAdapter) {
        super(dataBindAdapter);
    }

    /**
     * creates a new ViewHolder using the provided xml layout
     *
     * @param viewGroup the parent ViewGroup that this ViewHolder will inflate
     * specifies the xml layout that the binder should use to create the view
     * @return the inflated view
     */
    @Override
    public DataHeaderViewHolder newViewHolder(ViewGroup viewGroup) {
        View dataHeaderView = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.data_header, viewGroup, false);
        return new DataHeaderViewHolder(dataHeaderView);
    }

    /**
     * @param dataHeaderViewHolder the ViewHolder to use onBind
     *                   has all the associated views in this layout
     * @param position the position of this ViewHolder in the binder
     */
    @Override
    public void bindViewHolder(DataHeaderViewHolder dataHeaderViewHolder, int position) {
        dataHeaderViewHolder.headerLayout.setBackgroundColor(-1);
        dataHeaderViewHolder.dataHeader.setText(myAppHeader.getDividerText());
        int bgColor = myAppHeader.getDividerBGcolor();
        if (bgColor != -1)
            dataHeaderViewHolder.headerLayout.setBackgroundColor(bgColor);
    }

    @Override
    public int getItemCount() {
        return 1;
    }

    /**
     * Set the header and update the binder dataset
     *
     * @param header to set
     */
    public void add(RecyclerDivider header) {
        this.myAppHeader = header;
        notifyBinderDataSetChanged();
    }

    /**
     * Define the DataHeaderViewHolder
     * inject views that need to be updated in the ViewHolder onBind
     */
    public class DataHeaderViewHolder extends RecyclerView.ViewHolder {
        @Bind(R.id.divider_text_view)RobotoTextView dataHeader;
        @Bind(R.id.header)LinearLayout headerLayout;

        public DataHeaderViewHolder(View view) {
            super(view);
            ButterKnife.bind(this, view);
        }
    }
}