1 /* 2 ** 3 ** Copyright 2007, The Android Open Source Project 4 ** 5 ** Licensed under the Apache License, Version 2.0 (the "License"); 6 ** you may not use this file except in compliance with the License. 7 ** You may obtain a copy of the License at 8 ** 9 ** http://www.apache.org/licenses/LICENSE-2.0 10 ** 11 ** Unless required by applicable law or agreed to in writing, software 12 ** distributed under the License is distributed on an "AS IS" BASIS, 13 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 ** See the License for the specific language governing permissions and 15 ** limitations under the License. 16 */ 17 18 package com.android.packageinstaller; 19 20 import android.app.Activity; 21 import android.content.pm.ApplicationInfo; 22 import android.content.pm.PackageInfo; 23 import android.content.pm.PackageManager; 24 import android.content.pm.PackageParser; 25 import android.content.pm.PackageParser.PackageParserException; 26 import android.content.res.AssetManager; 27 import android.content.res.Resources; 28 import android.graphics.drawable.Drawable; 29 import android.view.View; 30 import android.widget.ImageView; 31 import android.widget.TextView; 32 import android.os.UserHandle; 33 34 import java.io.File; 35 import java.util.List; 36 37 /** 38 * This is a utility class for defining some utility methods and constants 39 * used in the package installer application. 40 */ 41 public class PackageUtil { 42 public static final String PREFIX="com.android.packageinstaller."; 43 public static final String INTENT_ATTR_INSTALL_STATUS = PREFIX+"installStatus"; 44 public static final String INTENT_ATTR_APPLICATION_INFO=PREFIX+"applicationInfo"; 45 public static final String INTENT_ATTR_PERMISSIONS_LIST=PREFIX+"PermissionsList"; 46 //intent attribute strings related to uninstall 47 public static final String INTENT_ATTR_PACKAGE_NAME=PREFIX+"PackageName"; 48 49 /** 50 * Utility method to get package information for a given {@link File} 51 */ 52 public static PackageParser.Package getPackageInfo(File sourceFile) { 53 final PackageParser parser = new PackageParser(); 54 try { 55 return parser.parsePackage(sourceFile, 0); 56 } catch (PackageParserException e) { 57 return null; 58 } 59 } 60 61 public static View initSnippet(View snippetView, CharSequence label, Drawable icon) { 62 ((ImageView)snippetView.findViewById(R.id.app_icon)).setImageDrawable(icon); 63 ((TextView)snippetView.findViewById(R.id.app_name)).setText(label); 64 return snippetView; 65 } 66 67 /** 68 * Utility method to display a snippet of an installed application. 69 * The content view should have been set on context before invoking this method. 70 * appSnippet view should include R.id.app_icon and R.id.app_name 71 * defined on it. 72 * 73 * @param pContext context of package that can load the resources 74 * @param componentInfo ComponentInfo object whose resources are to be loaded 75 * @param snippetView the snippet view 76 */ 77 public static View initSnippetForInstalledApp(Activity pContext, 78 ApplicationInfo appInfo, View snippetView) { 79 return initSnippetForInstalledApp(pContext, appInfo, snippetView, null); 80 } 81 82 /** 83 * Utility method to display a snippet of an installed application. 84 * The content view should have been set on context before invoking this method. 85 * appSnippet view should include R.id.app_icon and R.id.app_name 86 * defined on it. 87 * 88 * @param pContext context of package that can load the resources 89 * @param componentInfo ComponentInfo object whose resources are to be loaded 90 * @param snippetView the snippet view 91 * @param UserHandle user that the app si installed for. 92 */ 93 public static View initSnippetForInstalledApp(Activity pContext, 94 ApplicationInfo appInfo, View snippetView, UserHandle user) { 95 final PackageManager pm = pContext.getPackageManager(); 96 Drawable icon = appInfo.loadIcon(pm); 97 if (user != null) { 98 icon = pContext.getPackageManager().getUserBadgedIcon(icon, user); 99 } 100 return initSnippet( 101 snippetView, 102 appInfo.loadLabel(pm), 103 icon); 104 } 105 106 /** 107 * Utility method to display application snippet of a new package. 108 * The content view should have been set on context before invoking this method. 109 * appSnippet view should include R.id.app_icon and R.id.app_name 110 * defined on it. 111 * 112 * @param pContext context of package that can load the resources 113 * @param appInfo ApplicationInfo object of package whose resources are to be loaded 114 * @param snippetId view id of app snippet view 115 */ 116 public static View initSnippetForNewApp(Activity pContext, AppSnippet as, 117 int snippetId) { 118 View appSnippet = pContext.findViewById(snippetId); 119 ((ImageView)appSnippet.findViewById(R.id.app_icon)).setImageDrawable(as.icon); 120 ((TextView)appSnippet.findViewById(R.id.app_name)).setText(as.label); 121 return appSnippet; 122 } 123 124 public static boolean isPackageAlreadyInstalled(Activity context, String pkgName) { 125 List<PackageInfo> installedList = context.getPackageManager().getInstalledPackages( 126 PackageManager.GET_UNINSTALLED_PACKAGES); 127 int installedListSize = installedList.size(); 128 for(int i = 0; i < installedListSize; i++) { 129 PackageInfo tmp = installedList.get(i); 130 if(pkgName.equalsIgnoreCase(tmp.packageName)) { 131 return true; 132 } 133 } 134 return false; 135 } 136 137 static public class AppSnippet { 138 CharSequence label; 139 Drawable icon; 140 public AppSnippet(CharSequence label, Drawable icon) { 141 this.label = label; 142 this.icon = icon; 143 } 144 } 145 146 /** 147 * Utility method to load application label 148 * 149 * @param pContext context of package that can load the resources 150 * @param appInfo ApplicationInfo object of package whose resources are to be loaded 151 * @param snippetId view id of app snippet view 152 */ 153 public static AppSnippet getAppSnippet( 154 Activity pContext, ApplicationInfo appInfo, File sourceFile) { 155 final String archiveFilePath = sourceFile.getAbsolutePath(); 156 Resources pRes = pContext.getResources(); 157 AssetManager assmgr = new AssetManager(); 158 assmgr.addAssetPath(archiveFilePath); 159 Resources res = new Resources(assmgr, pRes.getDisplayMetrics(), pRes.getConfiguration()); 160 CharSequence label = null; 161 // Try to load the label from the package's resources. If an app has not explicitly 162 // specified any label, just use the package name. 163 if (appInfo.labelRes != 0) { 164 try { 165 label = res.getText(appInfo.labelRes); 166 } catch (Resources.NotFoundException e) { 167 } 168 } 169 if (label == null) { 170 label = (appInfo.nonLocalizedLabel != null) ? 171 appInfo.nonLocalizedLabel : appInfo.packageName; 172 } 173 Drawable icon = null; 174 // Try to load the icon from the package's resources. If an app has not explicitly 175 // specified any resource, just use the default icon for now. 176 if (appInfo.icon != 0) { 177 try { 178 icon = res.getDrawable(appInfo.icon); 179 } catch (Resources.NotFoundException e) { 180 } 181 } 182 if (icon == null) { 183 icon = pContext.getPackageManager().getDefaultActivityIcon(); 184 } 185 return new PackageUtil.AppSnippet(label, icon); 186 } 187 } 188