Android Tutorial - 2D Graphics : Icons
Load png Icon file with xml layout
package app.Test; import android.app.Activity; import android.os.Bundle; public class appTest extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); } } //main.xml <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent"> <SlidingDrawer android:id="@+id/drawer" android:layout_width="320dip" android:layout_height="440dip" android:orientation="vertical" android:handle="@+id/handle" android:content="@+id/content"> <ImageView android:id="@+id/handle" android:layout_width="48dip" android:layout_height="48dip" android:src="@drawable/icon" /> <AnalogClock android:id="@+id/content" android:background="#D0A0A0" android:layout_width="fill_parent" android:layout_height="fill_parent" /> </SlidingDrawer> </RelativeLayout>
Using Image icon as the background resource
package app.Test; import android.app.Activity; import android.content.Context; import android.graphics.Canvas; import android.graphics.Color; import android.graphics.Paint; import android.graphics.Path; import android.graphics.Path.Direction; import android.os.Bundle; import android.view.View; public class appTest extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(new GraphicsView(this)); } static public class GraphicsView extends View { private static final String QUOTE = "This is a test. This is a demo."; private Path circle; private Paint cPaint; private Paint tPaint; public GraphicsView(Context context) { super(context); int color = Color.BLUE; circle = new Path(); circle.addCircle(150, 150, 100, Direction.CW); cPaint = new Paint(Paint.ANTI_ALIAS_FLAG); cPaint.setStyle(Paint.Style.STROKE); cPaint.setColor(Color.LTGRAY); cPaint.setStrokeWidth(3); setBackgroundResource(R.drawable.icon); } @Override protected void onDraw(Canvas canvas) { canvas.drawPath(circle, cPaint); } } } //main.xml <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" android:background="@drawable/icon"> <org.example.graphics.Graphics.GraphicsView android:id="@+id/graphics" android:layout_width="fill_parent" android:layout_height="fill_parent" /> </LinearLayout> //strings.xml <?xml version="1.0" encoding="utf-8"?> <resources> <string name="app_name">Graphics</string> </resources> //colors.xml <?xml version="1.0" encoding="utf-8"?> <resources> <color name="mycolor">#7fff00ff</color>
</resources>
extends ArrayAdapter to create Icon adapter
package com.commonsware.android.fancylists.three; import android.app.Activity; import android.os.Bundle; import android.app.ListActivity; import android.view.View; import android.view.ViewGroup; import android.view.LayoutInflater; import android.widget.AdapterView; import android.widget.ArrayAdapter; import android.widget.ImageView; import android.widget.ListView; import android.widget.TextView; public class DynamicDemo extends ListActivity { TextView selection; String[] items={"lorem", "ipsum", "dolor", "sit", "amet", "consectetuer", "adipiscing", "elit", "morbi", "vel", "ligula", "vitae", "arcu", "aliquet", "mollis", "etiam", "vel", "erat", "placerat", "ante", "porttitor", "sodales", "pellentesque", "augue", "purus"}; @Override public void onCreate(Bundle icicle) { super.onCreate(icicle); setContentView(R.layout.main); setListAdapter(new IconicAdapter()); selection=(TextView)findViewById(R.id.selection); } public void onListItemClick(ListView parent, View v,int position, long id) { selection.setText(items[position]); } class IconicAdapter extends ArrayAdapter { IconicAdapter() { super(DynamicDemo.this, R.layout.row, items); } public View getView(int position, View convertView, ViewGroup parent) { LayoutInflater inflater=getLayoutInflater(); View row=inflater.inflate(R.layout.row, parent, false); TextView label=(TextView)row.findViewById(R.id.label); label.setText(items[position]); ImageView icon=(ImageView)row.findViewById(R.id.icon); if (items[position].length()>4) { icon.setImageResource(R.drawable.delete); } else { icon.setImageResource(R.drawable.ok); } return(row); } } } //res\layout\main.xml <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" > <TextView android:id="@+id/selection" android:layout_width="fill_parent" android:layout_height="wrap_content"/> <ListView android:id="@android:id/list" android:layout_width="fill_parent" android:layout_height="fill_parent" android:drawSelectorOnTop="false" /> </LinearLayout> //res\layout\row.xml <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="horizontal" > <ImageView android:id="@+id/icon" android:layout_width="22px" android:paddingLeft="2px" android:paddingRight="2px" android:paddingTop="2px" android:layout_height="wrap_content" android:src="@drawable/ok" /> <TextView android:id="@+id/label" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textSize="40sp" /> </LinearLayout>
Shows a list that can be filtered in-place with a SearchView in non-iconified mode.
package com.example.android.apis.view; import com.example.android.apis.R; import android.app.Activity; import android.os.Bundle; import android.text.TextUtils; import android.view.Window; import android.widget.ArrayAdapter; import android.widget.ListView; import android.widget.SearchView; /** * Shows a list that can be filtered in-place with a SearchView in non-iconified mode. */ public class SearchViewFilterMode extends Activity implements SearchView.OnQueryTextListener { private static final String TAG = "SearchViewFilterMode"; private SearchView mSearchView; private ListView mListView; private ArrayAdapter<String> mAdapter; private final String[] mStrings = Cheeses.sCheeseStrings; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); getWindow().requestFeature(Window.FEATURE_ACTION_BAR); setContentView(R.layout.searchview_filter); mSearchView = (SearchView) findViewById(R.id.search_view); mListView = (ListView) findViewById(R.id.list_view); mListView.setAdapter(mAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, mStrings)); mListView.setTextFilterEnabled(true); setupSearchView(); } private void setupSearchView() { mSearchView.setIconifiedByDefault(false); mSearchView.setOnQueryTextListener(this); mSearchView.setSubmitButtonEnabled(false); mSearchView.setQueryHint(getString(R.string.cheese_hunt_hint)); } public boolean onQueryTextChange(String newText) { if (TextUtils.isEmpty(newText)) { mListView.clearTextFilter(); } else { mListView.setFilterText(newText.toString()); } return true; } public boolean onQueryTextSubmit(String query) { return false; } } class Cheeses { public static final String[] sCheeseStrings = { "Abbaye de Belloc", "Abbaye du Mont des Cats", "Abertam", "Abondance", "Ackawi", "Acorn", "Adelost", "Affidelice au Chablis", "Afuega'l Pitu", "Airag", "Airedale", "Aisy Cendre", "Allgauer Emmentaler", "Alverca", "Ambert", "American Cheese", "Ami du Chambertin", "Anejo Enchilado", "Anneau du Vic-Bilh", "Anthoriro", "Appenzell", "Aragon", "Ardi Gasna", "Ardrahan", "Armenian String", "Aromes au Gene de Marc", "Asadero", "Asiago", "Aubisque Pyrenees", "Autun", "Avaxtskyr", "Baby Swiss", "Babybel", "Baguette Laonnaise", "Bakers", "Baladi", "Balaton", "Bandal", "Banon", "Barry's Bay Cheddar", "Basing", "Basket Cheese", "Bath Cheese", "Bavarian Bergkase", "Baylough", "Beaufort", "Beauvoorde", "Beenleigh Blue", "Beer Cheese", "Bel Paese", "Bergader", "Bergere Bleue", "Berkswell", "Beyaz Peynir", "Bierkase", "Bishop Kennedy", "Blarney", "Bleu d'Auvergne", "Bleu de Gex", "Bleu de Laqueuille", "Bleu de Septmoncel", "Bleu Des Causses", "Blue", "Blue Castello", "Blue Rathgore", "Blue Vein (Australian)", "Blue Vein Cheeses", "Bocconcini", "Bocconcini (Australian)", "Boeren Leidenkaas", "Bonchester", "Bosworth", "Bougon", "Boule Du Roves", "Boulette d'Avesnes", "Boursault", "Boursin", "Bouyssou", "Bra", "Braudostur", "Breakfast Cheese", "Brebis du Lavort", "Brebis du Lochois", "Brebis du Puyfaucon", "Bresse Bleu", "Brick", "Brie", "Brie de Meaux", "Brie de Melun", "Brillat-Savarin", "Brin", "Brin d' Amour", "Brin d'Amour", "Brinza (Burduf Brinza)", "Briquette de Brebis", "Briquette du Forez", "Broccio", "Broccio Demi-Affine", "Brousse du Rove", "Bruder Basil", "Brusselae Kaas (Fromage de Bruxelles)", "Bryndza", "Buchette d'Anjou", "Buffalo", "Burgos", "Butte", "Butterkase", "Button (Innes)", "Buxton Blue", "Cabecou", "Caboc", "Cabrales", "Cachaille", "Caciocavallo", "Caciotta", "Caerphilly", "Cairnsmore", "Calenzana", "Cambazola", "Camembert de Normandie", "Canadian Cheddar", "Canestrato", "Cantal", "Caprice des Dieux", "Capricorn Goat", "Capriole Banon", "Carre de l'Est", "Casciotta di Urbino", "Cashel Blue", "Castellano", "Castelleno", "Castelmagno", "Castelo Branco", "Castigliano", "Cathelain", "Celtic Promise", "Cendre d'Olivet", "Cerney", "Chabichou", "Chabichou du Poitou", "Chabis de Gatine", "Chaource", "Charolais", "Chaumes", "Cheddar", "Cheddar Clothbound", "Cheshire", "Chevres", "Chevrotin des Aravis", "Chontaleno", "Civray", "Coeur de Camembert au Calvados", "Coeur de Chevre", "Colby", "Cold Pack", "Comte", "Coolea", "Cooleney", "Coquetdale", "Corleggy", "Cornish Pepper", "Cotherstone", "Cotija", "Cottage Cheese", "Cottage Cheese (Australian)", "Cougar Gold", "Coulommiers", "Coverdale", "Crayeux de Roncq", "Cream Cheese", "Cream Havarti", "Crema Agria", "Crema Mexicana", "Creme Fraiche", "Crescenza", "Croghan", "Crottin de Chavignol", "Crottin du Chavignol", "Crowdie", "Crowley", "Cuajada", "Curd", "Cure Nantais", "Curworthy", "Cwmtawe Pecorino", "Cypress Grove Chevre", "Danablu (Danish Blue)", "Danbo", "Danish Fontina", "Daralagjazsky", "Dauphin", "Delice des Fiouves", "Denhany Dorset Drum", "Derby", "Dessertnyj Belyj", "Devon Blue", "Devon Garland", "Dolcelatte", "Doolin", "Doppelrhamstufel", "Dorset Blue Vinney", "Double Gloucester", "Double Worcester", "Dreux a la Feuille", "Dry Jack", "Duddleswell", "Dunbarra", "Dunlop", "Dunsyre Blue", "Duroblando", "Durrus", "Dutch Mimolette (Commissiekaas)", "Edam", "Edelpilz", "Emental Grand Cru", "Emlett", "Emmental", "Epoisses de Bourgogne", "Esbareich", "Esrom", "Etorki", "Evansdale Farmhouse Brie", "Evora De L'Alentejo", "Exmoor Blue", "Explorateur", "Feta", "Feta (Australian)", "Figue", "Filetta", "Fin-de-Siecle", "Finlandia Swiss", "Finn", "Fiore Sardo", "Fleur du Maquis", "Flor de Guia", "Flower Marie", "Folded", "Folded cheese with mint", "Fondant de Brebis", "Fontainebleau", "Fontal", "Fontina Val d'Aosta", "Formaggio di capra", "Fougerus", "Four Herb Gouda", "Fourme d' Ambert", "Fourme de Haute Loire", "Fourme de Montbrison", "Fresh Jack", "Fresh Mozzarella", "Fresh Ricotta", "Fresh Truffles", "Fribourgeois", "Friesekaas", "Friesian", "Friesla", "Frinault", "Fromage a Raclette", "Fromage Corse", "Fromage de Montagne de Savoie", "Fromage Frais", "Fruit Cream Cheese", "Frying Cheese", "Fynbo", "Gabriel", "Galette du Paludier", "Galette Lyonnaise", "Galloway Goat's Milk Gems", "Gammelost", "Gaperon a l'Ail", "Garrotxa", "Gastanberra", "Geitost", "Gippsland Blue", "Gjetost", "Gloucester", "Golden Cross", "Gorgonzola", "Gornyaltajski", "Gospel Green", "Gouda", "Goutu", "Gowrie", "Grabetto", "Graddost", "Grafton Village Cheddar", "Grana", "Grana Padano", "Grand Vatel", "Grataron d' Areches", "Gratte-Paille", "Graviera", "Greuilh", "Greve", "Gris de Lille", "Gruyere", "Gubbeen", "Guerbigny", "Halloumi", "Halloumy (Australian)", "Haloumi-Style Cheese", "Harbourne Blue", "Havarti", "Heidi Gruyere", "Hereford Hop", "Herrgardsost", "Herriot Farmhouse", "Herve", "Hipi Iti", "Hubbardston Blue Cow", "Hushallsost", "Iberico", "Idaho Goatster", "Idiazabal", "Il Boschetto al Tartufo", "Ile d'Yeu", "Isle of Mull", "Jarlsberg", "Jermi Tortes", "Jibneh Arabieh", "Jindi Brie", "Jubilee Blue", "Juustoleipa", "Kadchgall", "Kaseri", "Kashta", "Kefalotyri", "Kenafa", "Kernhem", "Kervella Affine", "Kikorangi", "King Island Cape Wickham Brie", "King River Gold", "Klosterkaese", "Knockalara", "Kugelkase", "L'Aveyronnais", "L'Ecir de l'Aubrac", "La Taupiniere", "La Vache Qui Rit", "Laguiole", "Lairobell", "Lajta", "Lanark Blue", "Lancashire", "Langres", "Lappi", "Laruns", "Lavistown", "Le Brin", "Le Fium Orbo", "Le Lacandou", "Le Roule", "Leafield", "Lebbene", "Leerdammer", "Leicester", "Leyden", "Limburger", "Lincolnshire Poacher", "Lingot Saint Bousquet d'Orb", "Liptauer", "Little Rydings", "Livarot", "Llanboidy", "Llanglofan Farmhouse", "Loch Arthur Farmhouse", "Loddiswell Avondale", "Longhorn", "Lou Palou", "Lou Pevre", "Lyonnais", "Maasdam", "Macconais", "Mahoe Aged Gouda", "Mahon", "Malvern", "Mamirolle", "Manchego", "Manouri", "Manur", "Marble Cheddar", "Marbled Cheeses", "Maredsous", "Margotin", "Maribo", "Maroilles", "Mascares", "Mascarpone", "Mascarpone (Australian)", "Mascarpone Torta", "Matocq", "Maytag Blue", "Meira", "Menallack Farmhouse", "Menonita", "Meredith Blue", "Mesost", "Metton (Cancoillotte)", "Meyer Vintage Gouda", "Mihalic Peynir", "Milleens", "Mimolette", "Mine-Gabhar", "Mini Baby Bells", "Mixte", "Molbo", "Monastery Cheeses", "Mondseer", "Mont D'or Lyonnais", "Montasio", "Monterey Jack", "Monterey Jack Dry", "Morbier", "Morbier Cru de Montagne", "Mothais a la Feuille", "Mozzarella", "Mozzarella (Australian)", "Mozzarella di Bufala", "Mozzarella Fresh, in water", "Mozzarella Rolls", "Munster", "Murol", "Mycella", "Myzithra", "Naboulsi", "Nantais", "Neufchatel", "Neufchatel (Australian)", "Niolo", "Nokkelost", "Northumberland", "Oaxaca", "Olde York", "Olivet au Foin", "Olivet Bleu", "Olivet Cendre", "Orkney Extra Mature Cheddar", "Orla", "Oschtjepka", "Ossau Fermier", "Ossau-Iraty", "Oszczypek", "Oxford Blue", "P'tit Berrichon", "Palet de Babligny", "Paneer", "Panela", "Pannerone", "Pant ys Gawn", "Parmesan (Parmigiano)", "Parmigiano Reggiano", "Pas de l'Escalette", "Passendale", "Pasteurized Processed", "Pate de Fromage", "Patefine Fort", "Pave d'Affinois", "Pave d'Auge", "Pave de Chirac", "Pave du Berry", "Pecorino", "Pecorino in Walnut Leaves", "Pecorino Romano", "Peekskill Pyramid", "Pelardon des Cevennes", "Pelardon des Corbieres", "Penamellera", "Penbryn", "Pencarreg", "Perail de Brebis", "Petit Morin", "Petit Pardou", "Petit-Suisse", "Picodon de Chevre", "Picos de Europa", "Piora", "Pithtviers au Foin", "Plateau de Herve", "Plymouth Cheese", "Podhalanski", "Poivre d'Ane", "Polkolbin", "Pont l'Eveque", "Port Nicholson", "Port-Salut", "Postel", "Pouligny-Saint-Pierre", "Pourly", "Prastost", "Pressato", "Prince-Jean", "Processed Cheddar", "Provolone", "Provolone (Australian)", "Pyengana Cheddar", "Pyramide", "Quark", "Quark (Australian)", "Quartirolo Lombardo", "Quatre-Vents", "Quercy Petit", "Queso Blanco", "Queso Blanco con Frutas --Pina y Mango", "Queso de Murcia", "Queso del Montsec", "Queso del Tietar", "Queso Fresco", "Queso Fresco (Adobera)", "Queso Iberico", "Queso Jalapeno", "Queso Majorero", "Queso Media Luna", "Queso Para Frier", "Queso Quesadilla", "Rabacal", "Raclette", "Ragusano", "Raschera", "Reblochon", "Red Leicester", "Regal de la Dombes", "Reggianito", "Remedou", "Requeson", "Richelieu", "Ricotta", "Ricotta (Australian)", "Ricotta Salata", "Ridder", "Rigotte", "Rocamadour", "Rollot", "Romano", "Romans Part Dieu", "Roncal", "Roquefort", "Roule", "Rouleau De Beaulieu", "Royalp Tilsit", "Rubens", "Rustinu", "Saaland Pfarr", "Saanenkaese", "Saga", "Sage Derby", "Sainte Maure", "Saint-Marcellin", "Saint-Nectaire", "Saint-Paulin", "Salers", "Samso", "San Simon", "Sancerre", "Sap Sago", "Sardo", "Sardo Egyptian", "Sbrinz", "Scamorza", "Schabzieger", "Schloss", "Selles sur Cher", "Selva", "Serat", "Seriously Strong Cheddar", "Serra da Estrela", "Sharpam", "Shelburne Cheddar", "Shropshire Blue", "Siraz", "Sirene", "Smoked Gouda", "Somerset Brie", "Sonoma Jack", "Sottocenare al Tartufo", "Soumaintrain", "Sourire Lozerien", "Spenwood", "Sraffordshire Organic", "St. Agur Blue Cheese", "Stilton", "Stinking Bishop", "String", "Sussex Slipcote", "Sveciaost", "Swaledale", "Sweet Style Swiss", "Swiss", "Syrian (Armenian String)", "Tala", "Taleggio", "Tamie", "Tasmania Highland Chevre Log", "Taupiniere", "Teifi", "Telemea", "Testouri", "Tete de Moine", "Tetilla", "Texas Goat Cheese", "Tibet", "Tillamook Cheddar", "Tilsit", "Timboon Brie", "Toma", "Tomme Brulee", "Tomme d'Abondance", "Tomme de Chevre", "Tomme de Romans", "Tomme de Savoie", "Tomme des Chouans", "Tommes", "Torta del Casar", "Toscanello", "Touree de L'Aubier", "Tourmalet", "Trappe (Veritable)", "Trois Cornes De Vendee", "Tronchon", "Trou du Cru", "Truffe", "Tupi", "Turunmaa", "Tymsboro", "Tyn Grug", "Tyning", "Ubriaco", "Ulloa", "Vacherin-Fribourgeois", "Valencay", "Vasterbottenost", "Venaco", "Vendomois", "Vieux Corse", "Vignotte", "Vulscombe", "Waimata Farmhouse Blue", "Washed Rind Cheese (Australian)", "Waterloo", "Weichkaese", "Wellington", "Wensleydale", "White Stilton", "Whitestone Farmhouse", "Wigmore", "Woodside Cabecou", "Xanadu", "Xynotyro", "Yarg Cornish", "Yarra Valley Pyramid", "Yorkshire Blue", "Zamorano", "Zanetti Grana Padano", "Zanetti Parmigiano Reggiano" }; } //layout/searchview_filter.xml <?xml version="1.0" encoding="utf-8"?> <!-- Copyright (C) 2010 The Android Open Source Project Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. --> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical"> <SearchView android:id="@+id/search_view" android:layout_width="wrap_content" android:layout_height="wrap_content"/> <ListView android:id="@+id/list_view" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_weight="1"/> </LinearLayout>
Get default favicon
import java.net.MalformedURLException; import java.net.URL; import android.util.Log; class Main { public URL getDefaultFavicon(String rssurl) { try { URL orig = new URL(rssurl); URL iconUrl = new URL(orig.getProtocol(), orig.getHost(), orig.getPort(), "/favicon.ico"); return iconUrl; } catch (MalformedURLException e) { Log.d("", Log.getStackTraceString(e)); return null; } }
}
create Icon Thumbnail, Scaled Image
//package org.jrowies.apcat; import java.io.ByteArrayOutputStream; import java.util.List; import android.content.Context; import android.content.Intent; import android.content.pm.PackageManager; import android.content.pm.ResolveInfo; import android.graphics.Bitmap; import android.graphics.Matrix; import android.graphics.Bitmap.CompressFormat; import android.graphics.Canvas; import android.graphics.drawable.BitmapDrawable; import android.graphics.drawable.Drawable; import android.widget.Toast; public class Utilities { public static void popUp(Context context, String message) { Toast t = Toast.makeText(context, message, Toast.LENGTH_LONG); t.show(); } public static List<ResolveInfo> getResolveInfoList(PackageManager pm) { Intent mainIntent = new Intent(Intent.ACTION_MAIN, null); mainIntent.addCategory(Intent.CATEGORY_LAUNCHER); return pm.queryIntentActivities(mainIntent, 0); } public static Drawable createIconThumbnail(Drawable icon, int size) { // code adapted from packages/apps/Launcher int sourceWidth = icon.getIntrinsicWidth(), sourceHeight = icon .getIntrinsicHeight(); int destWidth = size, destHeight = size; // only resize if actually needed if (sourceWidth != destWidth || sourceHeight != destHeight) { float ratio = (float) sourceWidth / sourceHeight; if (sourceWidth > sourceHeight) { destHeight = (int) (destWidth / ratio); } else if (sourceHeight > sourceWidth) { destWidth = (int) (destHeight * ratio); } final Bitmap thumb = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888); final Canvas canvas = new Canvas(thumb); icon.setBounds((size - destWidth) / 2, (size - destHeight) / 2, destWidth, destHeight); icon.draw(canvas); icon = new BitmapDrawable(thumb); } return icon; } public static byte[] drawableToBytes(Drawable image, int imageSize) { Bitmap imageBitmap = ((BitmapDrawable)image).getBitmap(); return convertToByteArray(imageBitmap, imageSize); } public static Drawable getResolveInfoIcon(ResolveInfo info, PackageManager pm) { return info.activityInfo.loadIcon(pm); } public static CharSequence getResolveInfoTitle(ResolveInfo info, PackageManager pm) { CharSequence result = info.loadLabel(pm); if (result == null) result = info.activityInfo.name; return result; } public static String getResolveInfoFullName(ResolveInfo info) { return info.activityInfo.name; } public static String getResolveInfoPackageName(ResolveInfo info) { return info.activityInfo.applicationInfo.packageName; } //This code adapted from AppsOrganizer //http://code.google.com/p/appsorganizer/source/browse/trunk/AppsOrganizer/src/com/google/code/appsorganizer/chooseicon/SelectAppDialog.java public static byte[] convertToByteArray(Bitmap bm, int imageSize) { Bitmap bitmap = getScaledImage(bm, imageSize); ByteArrayOutputStream os = new ByteArrayOutputStream(); bitmap.compress(CompressFormat.PNG, 100, os); return os.toByteArray(); } //This code adapted from AppsOrganizer //http://code.google.com/p/appsorganizer/source/browse/trunk/AppsOrganizer/src/com/google/code/appsorganizer/chooseicon/SelectAppDialog.java private static Bitmap getScaledImage(Bitmap bitmap, int size) { int width = bitmap.getWidth(); int height = bitmap.getHeight(); if ((size == width) && (size == height)) return bitmap; float coefWidth = ((float) size) / width; float coefHeight = ((float) size) / height; Matrix matrix = new Matrix(); matrix.postScale(coefWidth, coefHeight); return Bitmap.createBitmap(bitmap, 0, 0, width, height, matrix, true); } }
create Icon Thumbnail
package org.jsharkey.grouphome; import android.graphics.drawable.Drawable; import android.graphics.drawable.PaintDrawable; import android.graphics.drawable.BitmapDrawable; import android.graphics.Bitmap; import android.graphics.PixelFormat; import android.graphics.Canvas; import android.graphics.PaintFlagsDrawFilter; import android.graphics.Paint; import android.graphics.Rect; import android.content.res.Resources; import android.content.Context; class Utilities { public static Drawable createIconThumbnail(Drawable icon, int size) { // code adapted from packages/apps/Launcher int sourceWidth = icon.getIntrinsicWidth(), sourceHeight = icon.getIntrinsicHeight(); int destWidth = size, destHeight = size; // only resize if actually needed if(sourceWidth != destWidth || sourceHeight != destHeight) { float ratio = (float) sourceWidth / sourceHeight; if(sourceWidth > sourceHeight) { destHeight = (int) (destWidth / ratio); } else if (sourceHeight > sourceWidth) { destWidth = (int) (destHeight * ratio); } final Bitmap thumb = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888); final Canvas canvas = new Canvas(thumb); icon.setBounds((size - destWidth) / 2, (size - destHeight) / 2, destWidth, destHeight); icon.draw(canvas); icon = new BitmapDrawable(thumb); } return icon; } }