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      1 /*
      2  * Copyright (C) 2008 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 java.text.Collator;
     20 import java.util.ArrayList;
     21 import java.util.Collections;
     22 import java.util.Comparator;
     23 import java.util.List;
     24 
     25 import com.android.settings.applications.AppViewHolder;
     26 
     27 import android.app.ActivityManagerNative;
     28 import android.app.ListActivity;
     29 import android.content.Context;
     30 import android.content.Intent;
     31 import android.content.pm.ApplicationInfo;
     32 import android.os.Build;
     33 import android.os.Bundle;
     34 import android.os.Process;
     35 import android.os.RemoteException;
     36 import android.provider.Settings;
     37 import android.view.LayoutInflater;
     38 import android.view.View;
     39 import android.view.ViewGroup;
     40 import android.widget.ArrayAdapter;
     41 import android.widget.ListView;
     42 
     43 public class AppPicker extends ListActivity {
     44     private AppListAdapter mAdapter;
     45 
     46     @Override
     47     protected void onCreate(Bundle icicle) {
     48         super.onCreate(icicle);
     49 
     50         mAdapter = new AppListAdapter(this);
     51         if (mAdapter.getCount() <= 0) {
     52             finish();
     53         } else {
     54             setListAdapter(mAdapter);
     55         }
     56     }
     57 
     58     @Override
     59     protected void onResume() {
     60         super.onResume();
     61     }
     62 
     63     @Override
     64     protected void onStop() {
     65         super.onStop();
     66     }
     67 
     68     @Override
     69     protected void onListItemClick(ListView l, View v, int position, long id) {
     70         MyApplicationInfo app = mAdapter.getItem(position);
     71         Intent intent = new Intent();
     72         if (app.info != null) intent.setAction(app.info.packageName);
     73         setResult(RESULT_OK, intent);
     74         finish();
     75     }
     76 
     77     class MyApplicationInfo {
     78         ApplicationInfo info;
     79         CharSequence label;
     80     }
     81 
     82     public class AppListAdapter extends ArrayAdapter<MyApplicationInfo> {
     83         private final List<MyApplicationInfo> mPackageInfoList = new ArrayList<MyApplicationInfo>();
     84         private final LayoutInflater mInflater;
     85 
     86         public AppListAdapter(Context context) {
     87             super(context, 0);
     88             mInflater = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
     89             List<ApplicationInfo> pkgs = context.getPackageManager().getInstalledApplications(0);
     90             for (int i=0; i<pkgs.size(); i++) {
     91                 ApplicationInfo ai = pkgs.get(i);
     92                 if (ai.uid == Process.SYSTEM_UID) {
     93                     continue;
     94                 }
     95                 // On a user build, we only allow debugging of apps that
     96                 // are marked as debuggable.  Otherwise (for platform development)
     97                 // we allow all apps.
     98                 if ((ai.flags&ApplicationInfo.FLAG_DEBUGGABLE) == 0
     99                         && "user".equals(Build.TYPE)) {
    100                     continue;
    101                 }
    102                 MyApplicationInfo info = new MyApplicationInfo();
    103                 info.info = ai;
    104                 info.label = info.info.loadLabel(getPackageManager()).toString();
    105                 mPackageInfoList.add(info);
    106             }
    107             Collections.sort(mPackageInfoList, sDisplayNameComparator);
    108             MyApplicationInfo info = new MyApplicationInfo();
    109             info.label = context.getText(R.string.no_application);
    110             mPackageInfoList.add(0, info);
    111             addAll(mPackageInfoList);
    112         }
    113 
    114         @Override
    115         public View getView(int position, View convertView, ViewGroup parent) {
    116             // A ViewHolder keeps references to children views to avoid unnecessary calls
    117             // to findViewById() on each row.
    118             AppViewHolder holder = AppViewHolder.createOrRecycle(mInflater, convertView);
    119             convertView = holder.rootView;
    120             MyApplicationInfo info = getItem(position);
    121             holder.appName.setText(info.label);
    122             if (info.info != null) {
    123                 holder.appIcon.setImageDrawable(info.info.loadIcon(getPackageManager()));
    124                 holder.appSize.setText(info.info.packageName);
    125             } else {
    126                 holder.appIcon.setImageDrawable(null);
    127                 holder.appSize.setText("");
    128             }
    129             holder.disabled.setVisibility(View.GONE);
    130             holder.checkBox.setVisibility(View.GONE);
    131             return convertView;
    132         }
    133     }
    134 
    135     private final static Comparator<MyApplicationInfo> sDisplayNameComparator
    136             = new Comparator<MyApplicationInfo>() {
    137         public final int
    138         compare(MyApplicationInfo a, MyApplicationInfo b) {
    139             return collator.compare(a.label, b.label);
    140         }
    141 
    142         private final Collator collator = Collator.getInstance();
    143     };
    144 }
    145