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/**
* Copyright (C) 2016 The CyanogenMod 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 org.cyanogenmod.internal.util;
import android.content.Context;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager;
public final class PackageManagerUtils {
private static final int FLAG_SUSPENDED = 1 << 30;
private PackageManagerUtils() {
// This class is not supposed to be instantiated
}
/**
* Checks whether a given package exists
*
* @param context
* @param packageName
* @return true if the package exists
*/
public static boolean isAppInstalled(final Context context, final String packageName) {
return getApplicationInfo(context, packageName, 0) != null;
}
/**
* Check whether a package with specific flags is enabled
*
* @param context
* @param packageName
* @param flags
* @return true if the package is enabled
*/
public static boolean isAppEnabled(final Context context,
final String packageName, final int flags) {
final ApplicationInfo info = getApplicationInfo(context, packageName, flags);
return info != null && info.enabled;
}
/**
* Check whether a package is enabled
*
* @param context
* @param packageName
* @return true if the package is enabled
*/
public static boolean isAppEnabled(final Context context, final String packageName) {
return isAppEnabled(context, packageName, 0);
}
/**
* Check if a package can possibly be on the SDCard
* This is just a workaround and doesn't guarantee that the app is on SD card
*
* @param context
* @param packageName
* @return true if the package is on the SDCard
*/
public static boolean isAppOnSdcard(final Context context, final String packageName) {
return isAppEnabled(context, packageName, PackageManager.GET_UNINSTALLED_PACKAGES);
}
/**
* Check if a package is suspended
*
* @param context
* @param packageName
* @return true if the package is suspended
*/
public static boolean isAppSuspended(final Context context, final String packageName) {
return isAppSuspended(getApplicationInfo(context, packageName, 0));
}
/**
* Check if a package is suspended
*
* @param info
* @return true if the package is suspended
*/
public static boolean isAppSuspended(final ApplicationInfo info) {
return info != null && (info.flags & FLAG_SUSPENDED) != 0;
}
/**
* Get the ApplicationInfo of a package
*
* @param context
* @param packageName
* @param flags
* @return null if the package cannot be found or the ApplicationInfo is null
*/
public static ApplicationInfo getApplicationInfo(final Context context,
final String packageName, final int flags) {
final PackageManager packageManager = context.getPackageManager();
ApplicationInfo info;
try {
info = packageManager.getApplicationInfo(packageName, flags);
} catch (PackageManager.NameNotFoundException e) {
info = null;
}
return info;
}
}
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