Only load preinstalled updatable in release

package android.media.update;

import android.content.res.Resources;

import android.content.res.Resources.Theme;

import android.content.Context;

import android.content.pm.PackageManager.NameNotFoundException;

import android.content.pm.PackageManager;

import android.os.Build;

/**

 * @hide

    public static StaticProvider getProvider(Context context) {

        try {

            return (StaticProvider) getMediaLibraryImpl(context);

        } catch (NameNotFoundException | ReflectiveOperationException e) {

        } catch (PackageManager.NameNotFoundException | ReflectiveOperationException e) {

            throw new RuntimeException(e);

        }

    }

    // TODO This method may do I/O; Ensure it does not violate (emit warnings in) strict mode.

    private static synchronized Object getMediaLibraryImpl(Context appContext)

            throws NameNotFoundException, ReflectiveOperationException {

    private static synchronized Object getMediaLibraryImpl(Context context)

            throws PackageManager.NameNotFoundException, ReflectiveOperationException {

        if (sMediaLibrary != null) return sMediaLibrary;

        // TODO Dynamically find the package name

        Context libContext = appContext.createPackageContext(UPDATE_PACKAGE,

        // TODO Figure out when to use which package (query media update service)

        int flags = Build.IS_DEBUGGABLE ? 0 : PackageManager.MATCH_FACTORY_ONLY;

        Context libContext = context.createApplicationContext(

                context.getPackageManager().getPackageInfo(UPDATE_PACKAGE, flags).applicationInfo,

                Context.CONTEXT_INCLUDE_CODE | Context.CONTEXT_IGNORE_SECURITY);

        sMediaLibrary = libContext.getClassLoader()

                .loadClass(UPDATE_CLASS)

                .getMethod(UPDATE_METHOD, Resources.class, Theme.class)

                .getMethod(UPDATE_METHOD, Resources.class, Resources.Theme.class)

                .invoke(null, libContext.getResources(), libContext.getTheme());

        return sMediaLibrary;

    }