SharingAdapter.java

/*
 Swisscom Safe Connect
 Copyright (C) 2015 Swisscom

 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation, either version 3 of the License, or
 (at your option) any later version.

 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/
package com.swisscom.safeconnect.sharing;

import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.pm.LabeledIntent;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.graphics.drawable.Drawable;
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.swisscom.safeconnect.R;

import java.util.List;

public class SharingAdapter extends ArrayAdapter<Intent> {
    private Context mContext;

    public SharingAdapter(Context context, int textViewResourceId, List<Intent> objects) {
        super(context, textViewResourceId, objects);
        mContext = context;
    }

    static class ViewHolder {
        TextView text;
        ImageView icon;
    }

    @Override
    public View getView(final int position, View convertView, ViewGroup parent) {
        final Intent intent = getItem(position);

        View rowView = convertView;

        // helps to reuse objects and avoid allocating a memory
        if (rowView == null) {
            LayoutInflater inflater = ((Activity) getContext()).getLayoutInflater();
            rowView = inflater.inflate(R.layout.item_sharing, parent, false);

            ViewHolder h = new ViewHolder();
            h.text = (TextView) rowView.findViewById(R.id.item_app_name);
            h.icon = (ImageView) rowView.findViewById(R.id.item_app_icon);
            rowView.setTag(h);
        }

        final ViewHolder h = (ViewHolder) rowView.getTag();

        if (intent == null) {
            h.text.setText("");
            h.icon.setImageDrawable(null);
            return rowView;
        }

        if (intent instanceof LabeledIntent){
            h.text.setText(((LabeledIntent)intent).getNonLocalizedLabel());
            h.icon.setImageResource(((LabeledIntent) intent).getIconResource());
        } else {
            PackageManager pm = mContext.getPackageManager();
            List<ResolveInfo> resInfo = pm.queryIntentActivities(intent, 0);
            if (!resInfo.isEmpty()){
                ResolveInfo info = resInfo.get(0);
                Drawable icon = info.loadIcon(pm);
                h.icon.setImageDrawable(icon);
                h.text.setText(info.loadLabel(pm));
            }
        }

        return rowView;
    }
}