1 /* 2 * Copyright (C) 2009 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.wallpaper.livepicker; 18 19 import android.app.ListActivity; 20 import android.app.WallpaperInfo; 21 import android.os.Bundle; 22 import android.content.pm.PackageManager; 23 import android.content.pm.ResolveInfo; 24 import android.content.pm.ComponentInfo; 25 import android.content.Intent; 26 import android.content.res.Resources; 27 import android.graphics.drawable.Drawable; 28 import android.graphics.drawable.BitmapDrawable; 29 import android.graphics.Paint; 30 import android.graphics.Canvas; 31 import android.graphics.Bitmap; 32 import android.util.Log; 33 import android.view.Gravity; 34 import android.view.View; 35 import android.view.ViewGroup; 36 import android.view.LayoutInflater; 37 import android.service.wallpaper.WallpaperService; 38 import android.widget.BaseAdapter; 39 import android.widget.TextView; 40 import android.widget.ImageView; 41 import android.widget.AdapterView; 42 import android.text.Html; 43 44 import java.util.ArrayList; 45 import java.util.List; 46 import java.util.Collections; 47 import java.util.Comparator; 48 import java.io.IOException; 49 import java.text.Collator; 50 51 import org.xmlpull.v1.XmlPullParserException; 52 53 public class LiveWallpaperListActivity extends ListActivity implements AdapterView.OnItemClickListener { 54 private static final String LOG_TAG = "LiveWallpapersPicker"; 55 56 private static final int REQUEST_PREVIEW = 100; 57 58 private PackageManager mPackageManager; 59 60 private ArrayList<Drawable> mThumbnails; 61 private ArrayList<WallpaperInfo> mWallpaperInfos; 62 private ArrayList<Intent> mWallpaperIntents; 63 64 @Override 65 protected void onCreate(Bundle savedInstanceState) { 66 super.onCreate(savedInstanceState); 67 setContentView(R.layout.live_wallpaper_list); 68 69 mPackageManager = getPackageManager(); 70 71 findLiveWallpapers(); 72 73 setListAdapter(new LiveWallpapersAdapter()); 74 getListView().setOnItemClickListener(this); 75 } 76 77 // TODO: THIS SHOULD HAPPEN IN AN ASYNCTASK 78 private void findLiveWallpapers() { 79 List<ResolveInfo> list = mPackageManager.queryIntentServices( 80 new Intent(WallpaperService.SERVICE_INTERFACE), 81 PackageManager.GET_META_DATA); 82 83 int listSize = list.size(); 84 85 mThumbnails = new ArrayList<Drawable>(listSize); 86 mWallpaperIntents = new ArrayList<Intent>(listSize); 87 mWallpaperInfos = new ArrayList<WallpaperInfo>(listSize); 88 89 Resources res = getResources(); 90 Drawable galleryIcon = res.getDrawable(R.drawable.livewallpaper_placeholder); 91 92 Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG | Paint.DITHER_FLAG); 93 paint.setTextAlign(Paint.Align.CENTER); 94 95 Canvas canvas = new Canvas(); 96 97 Collections.sort(list, new Comparator<ResolveInfo>() { 98 final Collator mCollator; 99 100 { 101 mCollator = Collator.getInstance(); 102 } 103 104 public int compare(ResolveInfo info1, ResolveInfo info2) { 105 return mCollator.compare(info1.loadLabel(mPackageManager), 106 info2.loadLabel(mPackageManager)); 107 } 108 }); 109 110 for (int i = 0; i < listSize; i++) { 111 ResolveInfo resolveInfo = list.get(i); 112 ComponentInfo ci = resolveInfo.serviceInfo; 113 WallpaperInfo info; 114 try { 115 info = new WallpaperInfo(this, resolveInfo); 116 } catch (XmlPullParserException e) { 117 Log.w(LOG_TAG, "Skipping wallpaper " + ci, e); 118 continue; 119 } catch (IOException e) { 120 Log.w(LOG_TAG, "Skipping wallpaper " + ci, e); 121 continue; 122 } 123 124 String packageName = info.getPackageName(); 125 String className = info.getServiceName(); 126 127 Intent intent = new Intent(WallpaperService.SERVICE_INTERFACE); 128 intent.setClassName(packageName, className); 129 130 mWallpaperIntents.add(intent); 131 mWallpaperInfos.add(info); 132 133 Drawable thumb = info.loadThumbnail(mPackageManager); 134 if (thumb == null) { 135 int thumbWidth = res.getDimensionPixelSize(R.dimen.live_wallpaper_thumbnail_width); 136 int thumbHeight = res.getDimensionPixelSize(R.dimen.live_wallpaper_thumbnail_height); 137 138 Bitmap thumbnail = Bitmap.createBitmap(thumbWidth, thumbHeight, 139 Bitmap.Config.ARGB_8888); 140 141 paint.setColor(res.getColor(R.color.live_wallpaper_thumbnail_background)); 142 canvas.setBitmap(thumbnail); 143 canvas.drawPaint(paint); 144 145 galleryIcon.setBounds(0, 0, thumbWidth, thumbHeight); 146 ((BitmapDrawable) galleryIcon).setGravity(Gravity.CENTER); 147 galleryIcon.draw(canvas); 148 149 String title = info.loadLabel(mPackageManager).toString(); 150 151 paint.setColor(res.getColor(R.color.live_wallpaper_thumbnail_text_color)); 152 paint.setTextSize( 153 res.getDimensionPixelSize(R.dimen.live_wallpaper_thumbnail_text_size)); 154 155 canvas.drawText(title, (int) (thumbWidth * 0.5), 156 thumbHeight - res.getDimensionPixelSize( 157 R.dimen.live_wallpaper_thumbnail_text_offset), paint); 158 159 thumb = new BitmapDrawable(res, thumbnail); 160 } 161 162 thumb.setDither(true); 163 mThumbnails.add(thumb); 164 } 165 } 166 167 @Override 168 protected void onActivityResult(int requestCode, int resultCode, Intent data) { 169 super.onActivityResult(requestCode, resultCode, data); 170 171 if (requestCode == REQUEST_PREVIEW) { 172 if (resultCode == RESULT_OK) finish(); 173 } 174 } 175 176 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 177 final Intent intent = mWallpaperIntents.get(position); 178 final WallpaperInfo info = mWallpaperInfos.get(position); 179 LiveWallpaperPreview.showPreview(this, REQUEST_PREVIEW, intent, info); 180 } 181 182 static class ViewHolder { 183 TextView titleAuthor; 184 TextView description; 185 ImageView thumbnail; 186 } 187 188 private class LiveWallpapersAdapter extends BaseAdapter { 189 private final LayoutInflater mInflater; 190 191 LiveWallpapersAdapter() { 192 mInflater = LayoutInflater.from(LiveWallpaperListActivity.this); 193 } 194 195 public int getCount() { 196 return mWallpaperInfos.size(); 197 } 198 199 public Object getItem(int position) { 200 return mWallpaperInfos.get(position); 201 } 202 203 public long getItemId(int position) { 204 return position; 205 } 206 207 public View getView(int position, View convertView, ViewGroup parent) { 208 ViewHolder holder; 209 if (convertView == null) { 210 convertView = mInflater.inflate(R.layout.live_wallpaper_entry, parent, false); 211 212 holder = new ViewHolder(); 213 holder.titleAuthor = (TextView) convertView.findViewById(R.id.title_author); 214 holder.description = (TextView) convertView.findViewById(R.id.description); 215 holder.thumbnail = (ImageView) convertView.findViewById(R.id.thumbnail); 216 convertView.setTag(holder); 217 } else { 218 holder = (ViewHolder) convertView.getTag(); 219 } 220 221 WallpaperInfo info = mWallpaperInfos.get(position); 222 holder.thumbnail.setImageDrawable(mThumbnails.get(position)); 223 // author not currently used 224 holder.titleAuthor.setText(info.loadLabel(mPackageManager)); 225 try { 226 holder.description.setVisibility(View.VISIBLE); 227 holder.description.setText(Html.fromHtml( 228 info.loadDescription(mPackageManager).toString())); 229 } catch (Resources.NotFoundException e) { 230 holder.description.setVisibility(View.GONE); 231 } 232 233 return convertView; 234 } 235 } 236 } 237
