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      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 }
    140