Android Open Source - droidparts-battery-widget Settings Activity List

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License

The source code is released under:
Apache License
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Java Source Code

/*
 * Copyright (C) 2010 Sergej Shafarenka, beworx.com
 *//from  w  ww . j a  va2s .c o m
 * 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 at.linuxhacker.battery_widget;

import static at.linuxhacker.battery_widget.BatteryWidget.PREFS;
import static at.linuxhacker.battery_widget.BatteryWidget.PREF_ACTIVITY_NAME;
import static at.linuxhacker.battery_widget.BatteryWidget.PREF_CLASS_NAME;
import static at.linuxhacker.battery_widget.BatteryWidget.PREF_PACKAGE_NAME;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;

import android.app.ExpandableListActivity;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.pm.ActivityInfo;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.os.AsyncTask;
import android.os.Bundle;
import android.text.TextUtils;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.view.View.OnClickListener;
import android.widget.BaseExpandableListAdapter;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;

public class SettingsActivityList extends ExpandableListActivity implements OnClickListener {

  static class Group {
      Group(int titleTextId) {this.titleTextId = titleTextId;}
      int titleTextId;
      ArrayList<ResolveInfo> children = new ArrayList<ResolveInfo>();
  }
  
  static class FeaturedActivity {
      FeaturedActivity(String className, String packageName) {
          this.className = className;
          this.packageName = packageName;
      }
      String className;
      String packageName;
  }
  
  class ExpandableListAdapter extends BaseExpandableListAdapter {

      private final ArrayList<Group> mGroups = new ArrayList<Group>();
      private final LayoutInflater mInflater;
      
      public ExpandableListAdapter(LayoutInflater inflater) {
          mInflater = inflater;
          
          // create featured activities
          String[] params;
          FeaturedActivity activity;
          ArrayList<String> classNames = new ArrayList<String>();
          String[] activities = SettingsActivityList.this.getResources().getStringArray(R.array.featured_activities);
          for (int i=0; i<activities.length; i++) {
              params = TextUtils.split(activities[i], "/");
              mFeaturedActivities.add(activity = new FeaturedActivity(params[1], params[0]));
              classNames.add(activity.className);
          }
          mFeaturedClassNames = classNames.toArray(new String[classNames.size()]);
          Arrays.sort(mFeaturedClassNames);
      }
      
        public Object getChild(int groupPosition, int childPosition) {
            return mGroups.get(groupPosition).children.get(childPosition);
        }

        public long getChildId(int groupPosition, int childPosition) {
            return childPosition;
        }

        public View getChildView(int groupPosition, int childPosition, boolean isLastChild, View convertView,
                ViewGroup parent) {
            
            if (convertView == null) {
                convertView = mInflater.inflate(R.layout.activity_item, parent, false);
            }

            Group group = mGroups.get(groupPosition);
            
            ActivityInfo activityInfo = group.children.get(childPosition).activityInfo;
            
            ImageView icon = (ImageView) convertView.findViewById(R.id.icon);
            TextView text1 = (TextView) convertView.findViewById(R.id.text1);
            Button button = (Button) convertView.findViewById(R.id.button1);
            button.setEnabled(true);
            button.setTag(activityInfo);
            button.setOnClickListener(SettingsActivityList.this);

            View item = convertView.findViewById(R.id.item);
            item.setTag(activityInfo);
            item.setOnClickListener(SettingsActivityList.this);

            PackageManager pm = mPackageManager;
            icon.setImageDrawable(activityInfo.loadIcon(pm));
            text1.setText(activityInfo.loadLabel(pm));

            return convertView;
        }

        public int getChildrenCount(int groupPosition) {
            return mGroups.get(groupPosition).children.size();
        }

        public Object getGroup(int groupPosition) {
            return mGroups.get(groupPosition);
        }

        public int getGroupCount() {
            return mGroups.size();
        }

        public long getGroupId(int groupPosition) {
            return groupPosition;
        }

        public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {
            
            if (convertView == null) {
                convertView = mInflater.inflate(android.R.layout.simple_expandable_list_item_1, parent, false);
            }
            
            Group group = mGroups.get(groupPosition);
            ((TextView)convertView.findViewById(android.R.id.text1)).setText(group.titleTextId);
            
            return convertView;
        }

        public boolean hasStableIds() {
            return true;
        }

        public boolean isChildSelectable(int groupPosition, int childPosition) {
            return true;
        }
      
  }
  
  
  class CollectActivitiesTask extends AsyncTask<Void, Group, Void> {

    @Override
    protected void onPreExecute() {
      setProgressBarIndeterminateVisibility(true);
    }

    @Override
    protected void onPostExecute(Void param) {
      setProgressBarIndeterminateVisibility(false);
    }

    protected void onProgressUpdate(Group...group) {
        ExpandableListAdapter adapter = mAdapter;
      adapter.mGroups.add(group[0]);
      adapter.notifyDataSetChanged();
    }

    @Override
    protected Void doInBackground(Void... params) {

        Group group;        
        
        // get check all recommended activities
        { 
            final Intent intent = new Intent();
            group = new Group(R.string.txt_recommended);
                
            FeaturedActivity activity;
            ArrayList<FeaturedActivity> activities = mFeaturedActivities;
                int size = activities.size();
                for (int i = 0; i < size; i++) {
                    activity = activities.get(i); 
                    intent.setClassName(activity.packageName, activity.className);
                    List<ResolveInfo> infos = mPackageManager.queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY);
                    for (ResolveInfo info : infos) {
                        group.children.add(info);
                    }
                }
            
                if (group.children.size() > 0) {
                    publishProgress(group);
                }
        }
        
        // get other activities
        {
                group = new Group(R.string.txt_other);
                
                Intent queryIntent = new Intent(Intent.ACTION_MAIN);
                queryIntent.addCategory(Intent.CATEGORY_LAUNCHER);
                List<ResolveInfo> list = mPackageManager.queryIntentActivities(queryIntent, 0);
    
                // Sort the list
                Collections.sort(list, new ResolveInfo.DisplayNameComparator(mPackageManager));
    
                String className;
                for(ResolveInfo item : list) {
                    
                    // remove featured activities from the list
                    className = item.activityInfo.name;
                    int index = Arrays.binarySearch(mFeaturedClassNames, className);
                    if (index < 0) { // not in the list of featured activities
                        group.children.add(item);
                    }
                    
                }
                
                if (group.children.size() > 0) {
                    publishProgress(group);
                }
        }
        
      return null;
    }

  }

  PackageManager mPackageManager;
  ExpandableListAdapter mAdapter;
    ArrayList<FeaturedActivity> mFeaturedActivities = new ArrayList<FeaturedActivity>();
    String[] mFeaturedClassNames; // search dictionary

  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
    setProgressBarVisibility(true);

    setListAdapter(mAdapter = new ExpandableListAdapter(getLayoutInflater()));
    mPackageManager = getPackageManager();

    new CollectActivitiesTask().execute();
    getExpandableListView().setItemsCanFocus(true);
  }

  public void onClick(View view) {

    if (view.getId() == R.id.item) {

      ActivityInfo activityInfo = (ActivityInfo) view.getTag();

      // store configuration
      SharedPreferences prefs = getApplication().getSharedPreferences(PREFS, MODE_PRIVATE);
      prefs.edit().putString(PREF_CLASS_NAME, activityInfo.name).putString(PREF_PACKAGE_NAME,
          activityInfo.packageName).putString(PREF_ACTIVITY_NAME,
          activityInfo.loadLabel(mPackageManager).toString()).commit();

      // exit activity
      finish();
    } else {

      ActivityInfo activityInfo = (ActivityInfo) view.getTag();
      String packageName = activityInfo.packageName;
      String className = activityInfo.name;

      Intent intent = new Intent();
      intent.setClassName(packageName, className);
      startActivity(intent);
    }
  }
}
Java Source Code List
