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/*
**
** Copyright 2007, 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.
*/
package com.android.packageinstaller;
import android.annotation.NonNull;
import android.annotation.Nullable;
import android.app.Activity;
import android.content.Context;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.res.AssetManager;
import android.content.res.Resources;
import android.graphics.drawable.Drawable;
import android.os.UserHandle;
import android.util.Log;
import android.view.View;
import android.widget.ImageView;
import android.widget.TextView;
import java.io.File;
/**
* This is a utility class for defining some utility methods and constants
* used in the package installer application.
*/
public class PackageUtil {
private static final String LOG_TAG = PackageUtil.class.getSimpleName();
public static final String PREFIX="com.android.packageinstaller.";
public static final String INTENT_ATTR_INSTALL_STATUS = PREFIX+"installStatus";
public static final String INTENT_ATTR_APPLICATION_INFO=PREFIX+"applicationInfo";
public static final String INTENT_ATTR_PERMISSIONS_LIST=PREFIX+"PermissionsList";
//intent attribute strings related to uninstall
public static final String INTENT_ATTR_PACKAGE_NAME=PREFIX+"PackageName";
/**
* Utility method to get package information for a given {@link File}
*/
@Nullable
public static PackageInfo getPackageInfo(Context context, File sourceFile, int flags) {
try {
return context.getPackageManager().getPackageArchiveInfo(sourceFile.getAbsolutePath(),
flags);
} catch (Exception ignored) {
return null;
}
}
public static View initSnippet(View snippetView, CharSequence label, Drawable icon) {
((ImageView)snippetView.findViewById(R.id.app_icon)).setImageDrawable(icon);
((TextView)snippetView.findViewById(R.id.app_name)).setText(label);
return snippetView;
}
/**
* Utility method to display a snippet of an installed application.
* The content view should have been set on context before invoking this method.
* appSnippet view should include R.id.app_icon and R.id.app_name
* defined on it.
*
* @param pContext context of package that can load the resources
* @param componentInfo ComponentInfo object whose resources are to be loaded
* @param snippetView the snippet view
*/
public static View initSnippetForInstalledApp(Context pContext,
ApplicationInfo appInfo, View snippetView) {
return initSnippetForInstalledApp(pContext, appInfo, snippetView, null);
}
/**
* Utility method to display a snippet of an installed application.
* The content view should have been set on context before invoking this method.
* appSnippet view should include R.id.app_icon and R.id.app_name
* defined on it.
*
* @param pContext context of package that can load the resources
* @param componentInfo ComponentInfo object whose resources are to be loaded
* @param snippetView the snippet view
* @param UserHandle user that the app si installed for.
*/
public static View initSnippetForInstalledApp(Context pContext,
ApplicationInfo appInfo, View snippetView, UserHandle user) {
final PackageManager pm = pContext.getPackageManager();
Drawable icon = appInfo.loadIcon(pm);
if (user != null) {
icon = pContext.getPackageManager().getUserBadgedIcon(icon, user);
}
return initSnippet(
snippetView,
appInfo.loadLabel(pm),
icon);
}
static final class AppSnippet {
@NonNull public CharSequence label;
@Nullable public Drawable icon;
public AppSnippet(@NonNull CharSequence label, @Nullable Drawable icon) {
this.label = label;
this.icon = icon;
}
@Override
public String toString() {
return "AppSnippet[" + label + (icon != null ? "(has" : "(no ") + " icon)]";
}
}
/**
* Utility method to load application label
*
* @param pContext context of package that can load the resources
* @param appInfo ApplicationInfo object of package whose resources are to be loaded
* @param sourceFile File the package is in
*/
public static AppSnippet getAppSnippet(
Activity pContext, ApplicationInfo appInfo, File sourceFile) {
final String archiveFilePath = sourceFile.getAbsolutePath();
Resources pRes = pContext.getResources();
AssetManager assmgr = new AssetManager();
assmgr.addAssetPath(archiveFilePath);
Resources res = new Resources(assmgr, pRes.getDisplayMetrics(), pRes.getConfiguration());
CharSequence label = null;
// Try to load the label from the package's resources. If an app has not explicitly
// specified any label, just use the package name.
if (appInfo.labelRes != 0) {
try {
label = res.getText(appInfo.labelRes);
} catch (Resources.NotFoundException e) {
}
}
if (label == null) {
label = (appInfo.nonLocalizedLabel != null) ?
appInfo.nonLocalizedLabel : appInfo.packageName;
}
Drawable icon = null;
// Try to load the icon from the package's resources. If an app has not explicitly
// specified any resource, just use the default icon for now.
try {
if (appInfo.icon != 0) {
try {
icon = res.getDrawable(appInfo.icon);
} catch (Resources.NotFoundException e) {
}
}
if (icon == null) {
icon = pContext.getPackageManager().getDefaultActivityIcon();
}
} catch (OutOfMemoryError e) {
Log.i(LOG_TAG, "Could not load app icon", e);
}
return new PackageUtil.AppSnippet(label, icon);
}
/**
* Get the maximum target sdk for a UID.
*
* @param context The context to use
* @param uid The UID requesting the install/uninstall
*
* @return The maximum target SDK or -1 if the uid does not match any packages.
*/
static int getMaxTargetSdkVersionForUid(@NonNull Context context, int uid) {
PackageManager pm = context.getPackageManager();
final String[] packages = pm.getPackagesForUid(uid);
int targetSdkVersion = -1;
if (packages != null) {
for (String packageName : packages) {
try {
ApplicationInfo info = pm.getApplicationInfo(packageName, 0);
targetSdkVersion = Math.max(targetSdkVersion, info.targetSdkVersion);
} catch (PackageManager.NameNotFoundException e) {
// Ignore and try the next package
}
}
}
return targetSdkVersion;
}
}
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