MainActivity.java

/*
 * Copyright 2013 Chris Banes
 *
 * 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 uk.co.senab.actionbarpulltorefresh.samples.actionbarsherlock;

import com.actionbarsherlock.app.SherlockListActivity;

import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.pm.ActivityInfo;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.os.Bundle;
import android.text.TextUtils;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.TextView;

import java.util.ArrayList;

public class MainActivity extends SherlockListActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setListAdapter(getSampleAdapter());
    }

    @Override
    protected void onListItemClick(ListView l, View v, int position, long id) {
        ActivityInfo info = (ActivityInfo) l.getItemAtPosition(position);
        Intent intent = new Intent();
        intent.setComponent(new ComponentName(this, info.name));
        startActivity(intent);
    }

    private ListAdapter getSampleAdapter() {
        ArrayList<ActivityInfo> items = new ArrayList<ActivityInfo>();
        final String thisClazzName = getClass().getName();

        try {
            PackageInfo pInfo = getPackageManager().getPackageInfo(getPackageName(),
                    PackageManager.GET_ACTIVITIES);
            ActivityInfo[] aInfos = pInfo.activities;

            for (ActivityInfo aInfo : aInfos) {
                if (!thisClazzName.equals(aInfo.name)) {
                    items.add(aInfo);
                }
            }
        } catch (NameNotFoundException e) {
            e.printStackTrace();
        }

        return new SampleAdapter(this, items);
    }

    private static class SampleAdapter extends BaseAdapter {

        private final ArrayList<ActivityInfo> mItems;

        private final LayoutInflater mInflater;

        public SampleAdapter(Context context, ArrayList<ActivityInfo> activities) {
            mItems = activities;
            mInflater = LayoutInflater.from(context);
        }

        @Override
        public int getCount() {
            return mItems.size();
        }

        @Override
        public ActivityInfo getItem(int position) {
            return mItems.get(position);
        }

        @Override
        public long getItemId(int position) {
            return position;
        }

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            TextView tv = (TextView) convertView;
            if (tv == null) {
                tv = (TextView) mInflater.inflate(android.R.layout.simple_list_item_1, parent,
                        false);
            }
            ActivityInfo item = getItem(position);
            if (!TextUtils.isEmpty(item.nonLocalizedLabel)) {
                tv.setText(item.nonLocalizedLabel);
            } else {
                tv.setText(item.labelRes);
            }
            return tv;
        }
    }
}