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.List;
  48
  49 public class DreamComponentPreference extends Preference {
  50     private static final String TAG = "DreamComponentPreference";
  51
  52     private final PackageManager pm;
  53     private final ContentResolver resolver;
  54
  55     public DreamComponentPreference(Context context, AttributeSet attrs) {
  56         super(context, attrs);
  57         pm = getContext().getPackageManager();
  58         resolver = getContext().getContentResolver();
  59
  60         refreshFromSettings();
  61     }
  62
  63     private void refreshFromSettings() {
  64         String component = Settings.Secure.getString(resolver, DREAM_COMPONENT);
  65         if (component != null) {
  66             ComponentName cn = ComponentName.unflattenFromString(component);
  67             try {
  68                 setSummary(pm.getActivityInfo(cn, 0).loadLabel(pm));
  69             } catch (PackageManager.NameNotFoundException ex) {
  70                 setSummary("(unknown)");
  71             }
  72         }
  73     }
  74
  75     public class DreamListAdapter extends BaseAdapter implements ListAdapter {
  76         private ArrayList<ResolveInfo> results;
  77         private final LayoutInflater inflater;
  78
  79         public DreamListAdapter(Context context) {
  80             Intent choosy = new Intent(Intent.ACTION_MAIN)
  81                         .addCategory("android.intent.category.DREAM");
  82
  83             inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
  84             results = new ArrayList<ResolveInfo>(pm.queryIntentActivities(choosy, 0));
  85         }
  86
  87         @Override
  88         public int getCount() {
  89             return results.size();
  90         }
  91
  92         @Override
  93         public Object getItem(int position) {
  94             return results.get(position);
  95         }
  96
  97         @Override
  98         public long getItemId (int position) {
  99             return (long) position;
 100         }
 101
 102         @Override
 103         public View getView(int position, View convertView, ViewGroup parent) {
 104             View row = (convertView != null)
 105                 ? convertView
 106                 : inflater.inflate(R.layout.dream_picker_row, parent, false);
 107             ResolveInfo ri = results.get(position);
 108             ((TextView)row.findViewById(R.id.title)).setText(ri.loadLabel(pm));
 109             ((ImageView)row.findViewById(R.id.icon)).setImageDrawable(ri.loadIcon(pm));
 110             return row;
 111         }
 112     }
 113
 114     @Override
 115     protected void onClick() {
 116         final DreamListAdapter list = new DreamListAdapter(getContext());
 117         AlertDialog alert = new AlertDialog.Builder(getContext())
 118             .setAdapter(
 119                 list,
 120                 new DialogInterface.OnClickListener() {
 121                     @Override
 122                     public void onClick(DialogInterface dialog, int which) {
 123                         ResolveInfo ri = (ResolveInfo)list.getItem(which);
 124                         ActivityInfo act = ri.activityInfo;
 125                         ComponentName cn = new ComponentName(
 126                             act.applicationInfo.packageName,
 127                             act.name);
 128                         Intent intent = new Intent(Intent.ACTION_MAIN).setComponent(cn);
 129
 130                         setSummary(ri.loadLabel(pm));
 131                         //getContext().startActivity(intent);
 132
 133                         Settings.Secure.putString(resolver, DREAM_COMPONENT, cn.flattenToString());
 134                     }
 135                 })
 136             .create();
 137         alert.show();
 138     }
 139 }