Android Open Source - Joetz-Android-V2 Nav Drawer Adapter

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License

The source code is released under:
GNU General Public License
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Java Source Code

package com.example.jens.myapplication.main;
/*  www  .  j a  va  2s  . c  o  m*/
import android.app.Activity;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.TextView;

import com.example.jens.myapplication.R;
import com.example.jens.myapplication.sam.JoetzApplication;

/**
 * Created by Jens on 13/11/2014.
 */
public class NavDrawerAdapter extends ArrayAdapter<NavDrawerItem> {

    Context context;
    NavDrawerItem[] drawerItemList;
    int layoutResID;

    private int mSelectedItem;


    public NavDrawerAdapter(Context context, int textViewResourceId, NavDrawerItem[] objects ) {
        super(context, textViewResourceId, objects);
        this.context = context;
        this.drawerItemList = objects;
        this.layoutResID = textViewResourceId;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        View view = null ;
        NavDrawerItem menuItem = this.getItem(position);
        if ( menuItem.getType() == NavMenuItem.ITEM_TYPE ) {
            view = getItemView(convertView, parent, menuItem, position );

        }
        else {
            view = getSectionView(convertView, parent, menuItem);
        }

        return view ;
    }

    public View getItemView( View convertView, ViewGroup parentView, NavDrawerItem navDrawerItem, int position ) {
        LayoutInflater inflater = ((Activity) context).getLayoutInflater();
        NavMenuItem menuItem = (NavMenuItem) navDrawerItem ;
        NavMenuItemHolder navMenuItemHolder = null;

        if (convertView == null) {
            convertView = inflater.inflate( R.layout.navdrawer_item, parentView, false);
            TextView labelView = (TextView) convertView
                    .findViewById( R.id.navmenuitem_label );
            ImageView iconView = (ImageView) convertView
                    .findViewById( R.id.navmenuitem_icon );


            navMenuItemHolder = new NavMenuItemHolder();
            navMenuItemHolder.labelView = labelView ;
            navMenuItemHolder.iconView = iconView ;

            convertView.setTag(navMenuItemHolder);
        }

        if ( navMenuItemHolder == null ) {
            navMenuItemHolder = (NavMenuItemHolder) convertView.getTag();
        }

        navMenuItemHolder.labelView.setText(menuItem.getLabel());
        //navMenuItemHolder.iconView.setImageResource(menuItem.getIcon());

        if (position == mSelectedItem){
            navMenuItemHolder.labelView.setTextColor(getContext().getResources().getColor(R.color.navdrawer_selected));
            navMenuItemHolder.iconView.setImageResource(menuItem.getSelectedIcon());
        }
        else
        {
            navMenuItemHolder.iconView.setImageResource(menuItem.getIcon());
            navMenuItemHolder.labelView.setTextColor(getContext().getResources().getColor(R.color.navdrawer_normal));
        }



        return convertView ;
    }

    public View getSectionView(View convertView, ViewGroup parentView,
                               NavDrawerItem navDrawerItem) {
        LayoutInflater inflater = ((Activity) context).getLayoutInflater();
        NavMenuSection menuSection = (NavMenuSection) navDrawerItem ;
        NavMenuSectionHolder navMenuItemHolder = null;

        if (convertView == null) {
            convertView = inflater.inflate( R.layout.navdrawer_section, parentView, false);
            TextView labelView = (TextView) convertView
                  .findViewById( R.id.navmenusection_label );

            navMenuItemHolder = new NavMenuSectionHolder();
          navMenuItemHolder.labelView = labelView ;
            convertView.setTag(navMenuItemHolder);
        }

        if ( navMenuItemHolder == null ) {
            navMenuItemHolder = (NavMenuSectionHolder) convertView.getTag();
        }

        navMenuItemHolder.labelView.setText(menuSection.getLabel());

        return convertView ;
    }

    @Override
    public int getViewTypeCount() {
        return drawerItemList.length;
    }

    @Override
    public int getItemViewType(int position) {
        return this.getItem(position).getType();
    }

    @Override
    public boolean isEnabled(int position) {
        return getItem(position).isEnabled();
    }


    private static class NavMenuItemHolder {
        private TextView labelView;
        private ImageView iconView;
    }

    private class NavMenuSectionHolder {
        private TextView labelView;
    }

    public void setItems(NavDrawerItem[] items){
        drawerItemList = items;
        notifyDataSetChanged();
    }

    public int findIndexOfItemId(int id){
        for(int i=0; i<drawerItemList.length; i++){
            if(drawerItemList[i].getId() == id){
                return i;
            }
        }
        return -1;
    }

    public int getSelectedItem() {
        return mSelectedItem;
    }
    public void setSelectedItem(int selectedItem) {
        mSelectedItem = selectedItem;
    }
}
Java Source Code List
