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.res.AssetManager; 26 import android.content.res.Resources; 27 import android.graphics.drawable.Drawable; 28 import android.util.DisplayMetrics; 29 import android.view.View; 30 import android.widget.ImageView; 31 import android.widget.TextView; 32 33 import java.io.File; 34 import java.util.List; 35 36 /** 37 * This is a utility class for defining some utility methods and constants 38 * used in the package installer application. 39 */ 40 public class PackageUtil { 41 public static final String PREFIX="com.android.packageinstaller."; 42 public static final String INTENT_ATTR_INSTALL_STATUS = PREFIX+"installStatus"; 43 public static final String INTENT_ATTR_APPLICATION_INFO=PREFIX+"applicationInfo"; 44 public static final String INTENT_ATTR_PERMISSIONS_LIST=PREFIX+"PermissionsList"; 45 //intent attribute strings related to uninstall 46 public static final String INTENT_ATTR_PACKAGE_NAME=PREFIX+"PackageName"; 47 48 /** 49 * Utility method to get application information for a given {@link File} 50 */ 51 public static ApplicationInfo getApplicationInfo(File sourcePath) { 52 final String archiveFilePath = sourcePath.getAbsolutePath(); 53 PackageParser packageParser = new PackageParser(archiveFilePath); 54 File sourceFile = new File(archiveFilePath); 55 DisplayMetrics metrics = new DisplayMetrics(); 56 metrics.setToDefaults(); 57 PackageParser.Package pkg = packageParser.parsePackage( 58 sourceFile, archiveFilePath, metrics, 0); 59 if (pkg == null) { 60 return null; 61 } 62 return pkg.applicationInfo; 63 } 64 65 /** 66 * Utility method to get package information for a given {@link File} 67 */ 68 public static PackageParser.Package getPackageInfo(File sourceFile) { 69 final String archiveFilePath = sourceFile.getAbsolutePath(); 70 PackageParser packageParser = new PackageParser(archiveFilePath); 71 DisplayMetrics metrics = new DisplayMetrics(); 72 metrics.setToDefaults(); 73 PackageParser.Package pkg = packageParser.parsePackage(sourceFile, 74 archiveFilePath, metrics, 0); 75 if (pkg == null) { 76 return null; 77 } 78 if (!packageParser.collectManifestDigest(pkg)) { 79 return null; 80 } 81 return pkg; 82 } 83 84 public static View initSnippet(View snippetView, CharSequence label, Drawable icon) { 85 ((ImageView)snippetView.findViewById(R.id.app_icon)).setImageDrawable(icon); 86 ((TextView)snippetView.findViewById(R.id.app_name)).setText(label); 87 return snippetView; 88 } 89 90 /** 91 * Utility method to display a snippet of an installed application. 92 * The content view should have been set on context before invoking this method. 93 * appSnippet view should include R.id.app_icon and R.id.app_name 94 * defined on it. 95 * 96 * @param pContext context of package that can load the resources 97 * @param componentInfo ComponentInfo object whose resources are to be loaded 98 * @param snippetView the snippet view 99 */ 100 public static View initSnippetForInstalledApp(Activity pContext, 101 ApplicationInfo appInfo, View snippetView) { 102 final PackageManager pm = pContext.getPackageManager(); 103 return initSnippet( 104 snippetView, 105 appInfo.loadLabel(pm), 106 appInfo.loadIcon(pm)); 107 } 108 109 /** 110 * Utility method to display application snippet of a new package. 111 * The content view should have been set on context before invoking this method. 112 * appSnippet view should include R.id.app_icon and R.id.app_name 113 * defined on it. 114 * 115 * @param pContext context of package that can load the resources 116 * @param appInfo ApplicationInfo object of package whose resources are to be loaded 117 * @param snippetId view id of app snippet view 118 */ 119 public static View initSnippetForNewApp(Activity pContext, AppSnippet as, 120 int snippetId) { 121 View appSnippet = pContext.findViewById(snippetId); 122 ((ImageView)appSnippet.findViewById(R.id.app_icon)).setImageDrawable(as.icon); 123 ((TextView)appSnippet.findViewById(R.id.app_name)).setText(as.label); 124 return appSnippet; 125 } 126 127 public static boolean isPackageAlreadyInstalled(Activity context, String pkgName) { 128 List<PackageInfo> installedList = context.getPackageManager().getInstalledPackages( 129 PackageManager.GET_UNINSTALLED_PACKAGES); 130 int installedListSize = installedList.size(); 131 for(int i = 0; i < installedListSize; i++) { 132 PackageInfo tmp = installedList.get(i); 133 if(pkgName.equalsIgnoreCase(tmp.packageName)) { 134 return true; 135 } 136 } 137 return false; 138 } 139 140 static public class AppSnippet { 141 CharSequence label; 142 Drawable icon; 143 public AppSnippet(CharSequence label, Drawable icon) { 144 this.label = label; 145 this.icon = icon; 146 } 147 } 148 149 /** 150 * Utility method to load application label 151 * 152 * @param pContext context of package that can load the resources 153 * @param appInfo ApplicationInfo object of package whose resources are to be loaded 154 * @param snippetId view id of app snippet view 155 */ 156 public static AppSnippet getAppSnippet( 157 Activity pContext, ApplicationInfo appInfo, File sourceFile) { 158 final String archiveFilePath = sourceFile.getAbsolutePath(); 159 Resources pRes = pContext.getResources(); 160 AssetManager assmgr = new AssetManager(); 161 assmgr.addAssetPath(archiveFilePath); 162 Resources res = new Resources(assmgr, pRes.getDisplayMetrics(), pRes.getConfiguration()); 163 CharSequence label = null; 164 // Try to load the label from the package's resources. If an app has not explicitly 165 // specified any label, just use the package name. 166 if (appInfo.labelRes != 0) { 167 try { 168 label = res.getText(appInfo.labelRes); 169 } catch (Resources.NotFoundException e) { 170 } 171 } 172 if (label == null) { 173 label = (appInfo.nonLocalizedLabel != null) ? 174 appInfo.nonLocalizedLabel : appInfo.packageName; 175 } 176 Drawable icon = null; 177 // Try to load the icon from the package's resources. If an app has not explicitly 178 // specified any resource, just use the default icon for now. 179 if (appInfo.icon != 0) { 180 try { 181 icon = res.getDrawable(appInfo.icon); 182 } catch (Resources.NotFoundException e) { 183 } 184 } 185 if (icon == null) { 186 icon = pContext.getPackageManager().getDefaultActivityIcon(); 187 } 188 return new PackageUtil.AppSnippet(label, icon); 189 } 190 } 191
