Installation.java

/*
 * Copyright (C) 2012 asksven
 *
 * 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.asksven.android.system;

import android.content.Context;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.os.Build.VERSION;

/**
 * @author sven
 * 
 */
public class Installation
{
	public static boolean isInstalledOnSdCard(Context context)
	{

		// check for API level 8 and higher
		if (VERSION.SDK_INT > android.os.Build.VERSION_CODES.ECLAIR_MR1)
		{
			PackageManager pm = context.getPackageManager();
			try
			{
				PackageInfo pi = pm.getPackageInfo(context.getPackageName(), 0);
				ApplicationInfo ai = pi.applicationInfo;
				return (ai.flags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) == ApplicationInfo.FLAG_EXTERNAL_STORAGE;
			}
			catch (NameNotFoundException e)
			{
				// ignore
			}
		}

		// check for API level 7 - check files dir
		try
		{
			String filesDir = context.getFilesDir().getAbsolutePath();
			if (filesDir.startsWith("/data/"))
			{
				return false;
			} else if (filesDir.contains("/mnt/")
					|| filesDir.contains("/sdcard/"))
			{
				return true;
			}
		}
		catch (Throwable e)
		{
			// ignore
		}

		return false;
	}
}