src/com/android/settings/DreamComponentPreference.java

   1 /*
   2  * Copyright (C) 2011 The Android Open Source Project
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *      http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 package com.android.settings;
  18
  19 import static android.provider.Settings.Secure.DREAM_COMPONENT;
  20
  21 import android.app.AlertDialog;
  22 import android.content.Context;
  23 import android.content.ComponentName;
  24 import android.content.ContentResolver;
  25 import android.content.DialogInterface;
  26 import android.content.Intent;
  27 import android.content.pm.ActivityInfo;
  28 import android.content.pm.PackageManager;
  29 import android.content.pm.ResolveInfo;
  30 import android.content.res.Resources;
  31 import android.preference.Preference;
  32 import android.provider.Settings;
  33 import android.util.AttributeSet;
  34 import android.util.Log;
  35 import android.view.Gravity;
  36 import android.view.LayoutInflater;
  37 import android.view.View;
  38 import android.view.ViewGroup;
  39 import android.widget.ArrayAdapter;
  40 import android.widget.ListView;
  41 import android.widget.BaseAdapter;
  42 import android.widget.ImageView;
  43 import android.widget.ListAdapter;
  44 import android.widget.TextView;
  45
  46 import java.util.ArrayList;
  47 import java.util.Collections;
  48 import java.util.Comparator;
  49 import java.util.List;
  50
  51 public class DreamComponentPreference extends Preference {
  52     private static final String TAG = "DreamComponentPreference";
  53
  54     private static final boolean SHOW_DOCK_APPS_TOO = true;
  55
  56     private final PackageManager pm;
  57     private final ContentResolver resolver;
  58
  59     public DreamComponentPreference(Context context, AttributeSet attrs) {
  60         super(context, attrs);
  61         pm = getContext().getPackageManager();
  62         resolver = getContext().getContentResolver();
  63
  64         refreshFromSettings();
  65     }
  66
  67     private void refreshFromSettings() {
  68         String component = Settings.Secure.getString(resolver, DREAM_COMPONENT);
  69         if (component == null) {
  70             component = getContext().getResources().getString(
  71                 com.android.internal.R.string.config_defaultDreamComponent);
  72         }
  73         if (component != null) {
  74             ComponentName cn = ComponentName.unflattenFromString(component);
  75             try {
  76                 setSummary(pm.getActivityInfo(cn, 0).loadLabel(pm));
  77             } catch (PackageManager.NameNotFoundException ex) {
  78                 setSummary("(unknown)");
  79             }
  80         }
  81     }
  82
  83     final static Comparator<ResolveInfo> sResolveInfoComparator = new Comparator<ResolveInfo>() {
  84         @Override
  85         public int compare(ResolveInfo a, ResolveInfo b) {
  86             int cmp = a.activityInfo.applicationInfo.packageName.compareTo(
  87                     b.activityInfo.applicationInfo.packageName);
  88             if (cmp == 0) {
  89                 cmp = a.activityInfo.name.compareTo(b.activityInfo.name);
  90             }
  91             return cmp;
  92         }
  93     };
  94
  95     public class DreamListAdapter extends BaseAdapter implements ListAdapter {
  96         private ArrayList<ResolveInfo> results;
  97         private final LayoutInflater inflater;
  98
  99         public DreamListAdapter(Context context) {
 100             Intent choosy = new Intent(Intent.ACTION_MAIN)
 101                         .addCategory("android.intent.category.DREAM");
 102
 103             inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
 104
 105             results = new ArrayList<ResolveInfo>(pm.queryIntentActivities(choosy, 0));
 106
 107             // Group by package
 108             Collections.sort(results, sResolveInfoComparator);
 109
 110             if (SHOW_DOCK_APPS_TOO) {
 111                 choosy = new Intent(Intent.ACTION_MAIN)
 112                             .addCategory(Intent.CATEGORY_DESK_DOCK);
 113
 114                 List<ResolveInfo> dockApps = pm.queryIntentActivities(choosy, 0);
 115                 for (ResolveInfo app : dockApps) {
 116                     // do not insert duplicate packages
 117                     int pos = Collections.binarySearch(results, app, sResolveInfoComparator);
 118                     if (pos < 0) {
 119                         results.add(-1-pos, app);
 120                     }
 121                 }
 122             }
 123         }
 124
 125         @Override
 126         public int getCount() {
 127             return results.size();
 128         }
 129
 130         @Override
 131         public Object getItem(int position) {
 132             return results.get(position);
 133         }
 134
 135         @Override
 136         public long getItemId (int position) {
 137             return (long) position;
 138         }
 139
 140         @Override
 141         public View getView(int position, View convertView, ViewGroup parent) {
 142             View row = (convertView != null)
 143                 ? convertView
 144                 : inflater.inflate(R.layout.dream_picker_row, parent, false);
 145             ResolveInfo ri = results.get(position);
 146             ((TextView)row.findViewById(R.id.title)).setText(ri.loadLabel(pm));
 147             ((ImageView)row.findViewById(R.id.icon)).setImageDrawable(ri.loadIcon(pm));
 148             return row;
 149         }
 150     }
 151
 152     @Override
 153     protected void onClick() {
 154         final DreamListAdapter list = new DreamListAdapter(getContext());
 155         AlertDialog alert = new AlertDialog.Builder(getContext())
 156             .setAdapter(
 157                 list,
 158                 new DialogInterface.OnClickListener() {
 159                     @Override
 160                     public void onClick(DialogInterface dialog, int which) {
 161                         ResolveInfo ri = (ResolveInfo)list.getItem(which);
 162                         ActivityInfo act = ri.activityInfo;
 163                         ComponentName cn = new ComponentName(
 164                             act.applicationInfo.packageName,
 165                             act.name);
 166                         Intent intent = new Intent(Intent.ACTION_MAIN).setComponent(cn);
 167
 168                         setSummary(ri.loadLabel(pm));
 169                         //getContext().startActivity(intent);
 170
 171                         Settings.Secure.putString(resolver, DREAM_COMPONENT, cn.flattenToString());
 172                     }
 173                 })
 174             .create();
 175         alert.show();
 176     }
 177 }