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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 java.io.File;
import java.util.List;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageParser;
import android.content.pm.ResolveInfo;
import android.content.pm.PackageParser.Package;
import android.content.res.AssetManager;
import android.content.res.Resources;
import android.graphics.drawable.Drawable;
import android.net.Uri;
import android.util.DisplayMetrics;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.ImageView;
import android.widget.TextView;
/**
* This is a utility class for defining some utility methods and constants
* used in the package installer application.
*/
public class PackageUtil {
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 application information for a given packageURI
*/
public static ApplicationInfo getApplicationInfo(Uri packageURI) {
final String archiveFilePath = packageURI.getPath();
PackageParser packageParser = new PackageParser(archiveFilePath);
File sourceFile = new File(archiveFilePath);
DisplayMetrics metrics = new DisplayMetrics();
metrics.setToDefaults();
Package pkg = packageParser.parsePackage(sourceFile, archiveFilePath, metrics, 0);
if (pkg == null) {
return null;
}
return pkg.applicationInfo;
}
/*
* Utility method to get package information for a given packageURI
*/
public static Package getPackageInfo(Uri packageURI) {
final String archiveFilePath = packageURI.getPath();
PackageParser packageParser = new PackageParser(archiveFilePath);
File sourceFile = new File(archiveFilePath);
DisplayMetrics metrics = new DisplayMetrics();
metrics.setToDefaults();
return packageParser.parsePackage(sourceFile, archiveFilePath, metrics, 0);
}
/*
* Utility method to get application label from package manager for a given context
*/
public static CharSequence getApplicationLabel(Context context, ApplicationInfo appInfo) {
CharSequence appName = context.getPackageManager().getApplicationLabel(appInfo);
if(appName == null) {
appName = context.getString(R.string.unknown);
}
return appName;
}
/*
* Utility method to getApplicationIcon from package manager for a given context
*/
public static Drawable getApplicationIcon(Context context, ApplicationInfo appInfo) {
return context.getPackageManager().getApplicationIcon(appInfo);
}
/*
* Utility method to display application snippet. make sure to setContentView on context
* before invoking this method
*/
public static View initAppSnippet(Activity context, ApplicationInfo appInfo, int snippetId) {
View appSnippet = context.findViewById(snippetId);
((ImageView)appSnippet.findViewById(R.id.app_icon)).setImageDrawable(
getApplicationIcon(context, appInfo));
((TextView)appSnippet.findViewById(R.id.app_name)).setText(
getApplicationLabel(context, appInfo));
return appSnippet;
}
public static boolean isPackageAlreadyInstalled(Activity context, String pkgName) {
List<PackageInfo> installedList = context.getPackageManager().getInstalledPackages(0);
int installedListSize = installedList.size();
for(int i = 0; i < installedListSize; i++) {
PackageInfo tmp = installedList.get(i);
if(pkgName.equalsIgnoreCase(tmp.packageName)) {
return true;
}
}
return false;
}
/**
* Returns an intent that can be used to launch the main activity in the given package.
*
* @param ctx
* @param packageName
* @return an intent launching the main activity in the given package
*/
public static Intent getLaunchIntentForPackage(Context ctx, String packageName) {
Intent intent = new Intent(Intent.ACTION_MAIN);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
PackageManager manager = ctx.getPackageManager();
Intent intentToResolve = new Intent(Intent.ACTION_MAIN, null);
intentToResolve.addCategory(Intent.CATEGORY_LAUNCHER);
final List<ResolveInfo> apps =
manager.queryIntentActivities(intentToResolve, 0);
// TODO in future add a new tag to application for launchable main activity
for (ResolveInfo app : apps) {
if (app.activityInfo.packageName.equals(packageName)) {
intent.setClassName(packageName, app.activityInfo.name);
return intent;
}
}
return null;
}
}
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