samples/MultiDisplay/src/com/example/android/multidisplay/launcher/AppListAdapter.java

/**
 * Copyright (c) 2018 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.example.android.multidisplay.launcher;

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.android.multidisplay.R;

import java.util.List;

/** Adapter for available apps list. */
public class AppListAdapter extends ArrayAdapter<AppEntry> {
    private final LayoutInflater mInflater;

    AppListAdapter(Context context) {
        super(context, android.R.layout.simple_list_item_2);
        mInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    }

    void setData(List<AppEntry> data) {
        clear();
        if (data != null) {
            addAll(data);
        }
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        View view;

        if (convertView == null) {
            view = mInflater.inflate(R.layout.app_grid_item, parent, false);
        } else {
            view = convertView;
        }

        AppEntry item = getItem(position);
        ((ImageView)view.findViewById(R.id.app_icon)).setImageDrawable(item.getIcon());
        ((TextView)view.findViewById(R.id.app_name)).setText(item.getLabel());

        return view;
    }
}