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5 | PointedEar | 1 | package ch.ffhs.converter; |
2 | /* |
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3 | * Copyright (C) 2007 The Android Open Source Project |
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4 | * |
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5 | * Licensed under the Apache License, Version 2.0 (the "License"); |
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6 | * you may not use this file except in compliance with the License. |
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7 | * You may obtain a copy of the License at |
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8 | * |
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9 | * http://www.apache.org/licenses/LICENSE-2.0 |
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10 | * |
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11 | * Unless required by applicable law or agreed to in writing, software |
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12 | * distributed under the License is distributed on an "AS IS" BASIS, |
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13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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14 | * See the License for the specific language governing permissions and |
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15 | * limitations under the License. |
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16 | */ |
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17 | |||
18 | |||
19 | |||
20 | import android.app.ListActivity; |
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21 | import android.content.Intent; |
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22 | import android.content.pm.PackageManager; |
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23 | import android.content.pm.ResolveInfo; |
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24 | import android.os.Bundle; |
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25 | import android.view.View; |
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26 | import android.widget.ListView; |
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27 | import android.widget.SimpleAdapter; |
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28 | |||
29 | import java.text.Collator; |
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30 | import java.util.ArrayList; |
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31 | import java.util.Collections; |
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32 | import java.util.Comparator; |
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33 | import java.util.HashMap; |
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34 | import java.util.List; |
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35 | import java.util.Map; |
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36 | |||
37 | public class MenuActivity extends ListActivity { |
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38 | |||
39 | @Override |
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40 | public void onCreate(Bundle savedInstanceState) { |
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41 | super.onCreate(savedInstanceState); |
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42 | |||
43 | Intent intent = getIntent(); |
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44 | String path = intent.getStringExtra("ch.ffhs.converter.Path"); |
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45 | |||
46 | if (path == null) { |
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47 | path = ""; |
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48 | } |
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49 | |||
50 | setListAdapter(new SimpleAdapter(this, getData(path), |
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51 | android.R.layout.simple_list_item_1, new String[] { "title" }, |
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52 | new int[] { android.R.id.text1 })); |
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53 | getListView().setTextFilterEnabled(true); |
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54 | } |
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55 | |||
56 | protected List getData(String prefix) { |
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57 | List<Map> myData = new ArrayList<Map>(); |
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58 | |||
59 | Intent mainIntent = new Intent(Intent.ACTION_MAIN, null); |
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60 | mainIntent.addCategory(Intent.CATEGORY_SAMPLE_CODE); |
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61 | |||
62 | PackageManager pm = getPackageManager(); |
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63 | List<ResolveInfo> list = pm.queryIntentActivities(mainIntent, 0); |
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64 | |||
65 | if (null == list) |
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66 | return myData; |
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67 | |||
68 | String[] prefixPath; |
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69 | |||
70 | if (prefix.equals("")) { |
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71 | prefixPath = null; |
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72 | } else { |
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73 | prefixPath = prefix.split("/"); |
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74 | } |
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75 | |||
76 | int len = list.size(); |
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77 | |||
78 | Map<String, Boolean> entries = new HashMap<String, Boolean>(); |
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79 | |||
80 | for (int i = 0; i < len; i++) { |
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81 | ResolveInfo info = list.get(i); |
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82 | CharSequence labelSeq = info.loadLabel(pm); |
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83 | String label = labelSeq != null |
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84 | ? labelSeq.toString() |
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85 | : info.activityInfo.name; |
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86 | |||
87 | if (prefix.length() == 0 || label.startsWith(prefix)) { |
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88 | |||
89 | String[] labelPath = label.split("/"); |
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90 | |||
91 | String nextLabel = prefixPath == null ? labelPath[0] : labelPath[prefixPath.length]; |
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92 | |||
93 | if ((prefixPath != null ? prefixPath.length : 0) == labelPath.length - 1) { |
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94 | addItem(myData, nextLabel, activityIntent( |
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95 | info.activityInfo.applicationInfo.packageName, |
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96 | info.activityInfo.name)); |
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97 | } else { |
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98 | if (entries.get(nextLabel) == null) { |
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99 | addItem(myData, nextLabel, browseIntent(prefix.equals("") ? nextLabel : prefix + "/" + nextLabel)); |
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100 | entries.put(nextLabel, true); |
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101 | } |
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102 | } |
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103 | } |
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104 | } |
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105 | |||
106 | Collections.sort(myData, sDisplayNameComparator); |
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107 | |||
108 | return myData; |
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109 | } |
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110 | |||
111 | private final static Comparator<Map> sDisplayNameComparator = new Comparator<Map>() { |
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112 | private final Collator collator = Collator.getInstance(); |
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113 | |||
114 | public int compare(Map map1, Map map2) { |
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115 | return collator.compare(map1.get("title"), map2.get("title")); |
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116 | } |
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117 | }; |
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118 | |||
119 | protected Intent activityIntent(String pkg, String componentName) { |
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120 | Intent result = new Intent(); |
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121 | result.setClassName(pkg, componentName); |
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122 | return result; |
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123 | } |
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124 | |||
125 | protected Intent browseIntent(String path) { |
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126 | Intent result = new Intent(); |
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127 | result.setClass(this, MenuActivity.class); |
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128 | result.putExtra("ch.ffhs.converter.Path", path); |
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129 | return result; |
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130 | } |
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131 | |||
132 | protected void addItem(List<Map> data, String name, Intent intent) { |
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133 | Map<String, Object> temp = new HashMap<String, Object>(); |
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134 | temp.put("title", name); |
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135 | temp.put("intent", intent); |
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136 | data.add(temp); |
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137 | } |
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138 | |||
139 | @Override |
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140 | protected void onListItemClick(ListView l, View v, int position, long id) { |
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141 | Map map = (Map) l.getItemAtPosition(position); |
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142 | |||
143 | Intent intent = (Intent) map.get("intent"); |
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144 | startActivity(intent); |
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145 | } |
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146 | |||
147 | } |