fix crash for legacy AdLoader fallback for old mobile Ads sdk apps

class AdLoaderBuilderCreatorImpl : IAdLoaderBuilderCreator.Stub() {

    override fun newAdLoaderBuilder(context: IObjectWrapper?, adUnitId: String, adapterCreator: IAdapterCreator?, clientVersion: Int): IBinder? {

        Log.d(TAG, "newAdLoaderBuilder: adUnitId=$adUnitId clientVersion=$clientVersion")

        return null

        return LegacyAdLoaderBuilder()

    }

    override fun onTransact(code: Int, data: Parcel, reply: Parcel?, flags: Int): Boolean = warnOnTransactionIssues(code, reply, flags, TAG) { super.onTransact(code, data, reply, flags) }

/*

 * SPDX-FileCopyrightText: 2026 microG Project Team

 * SPDX-License-Identifier: Apache-2.0

 */

package com.google.android.gms.ads

import android.os.IBinder

import android.util.Log

import com.google.android.gms.ads.internal.AdRequestParcel

import com.google.android.gms.ads.internal.client.IAdLoader

import com.google.android.gms.ads.internal.client.IAdLoaderBuilder

private const val TAG = "LegacyAdLoader"

internal class LegacyAdLoaderBuilder : IAdLoaderBuilder.Stub() {

    override fun build(): IAdLoader = LegacyAdLoader

    override fun setAdListener(listener: IBinder?) = Unit

    override fun setUnifiedNativeAdLoadedListener(listener: IBinder?) = Unit

}

private object LegacyAdLoader : IAdLoader.Stub() {

    override fun load(request: AdRequestParcel?) {

        Log.w(TAG, "Serving lightweight AdLoader fallback to avoid legacy writable-dex signals path")

    }

    override fun isLoading(): Boolean = false

    override fun loadAds(request: AdRequestParcel?, count: Int) {

        Log.w(TAG, "Serving lightweight AdLoader fallback to avoid legacy writable-dex signals path")

    }

}

package com.google.android.gms.ads.internal.client;

import com.google.android.gms.ads.internal.AdRequestParcel;

interface IAdLoader {

    void load(in AdRequestParcel request) = 0;

    boolean isLoading() = 2;

    void loadAds(in AdRequestParcel request, int count) = 4;

}

package com.google.android.gms.ads.internal.client;

import com.google.android.gms.ads.internal.client.IAdLoader;

interface IAdLoaderBuilder {

    IAdLoader build() = 0;

    void setAdListener(IBinder listener) = 1;

    void setUnifiedNativeAdLoadedListener(IBinder listener) = 9;

}