Proguard 混淆时保持类“实现”

Question

我的问题是在 Proguard 混淆 运行后更改了类定义 （注意当 -dontobfuscate 开启时它不会改变！）。

package com.google.ads.mediation.inmobi;

...
import com.google.ads.AdSize;
import com.google.ads.AdRequest.ErrorCode;
import com.google.ads.mediation.MediationAdRequest;
import com.google.ads.mediation.MediationBannerAdapter;
import com.google.ads.mediation.MediationBannerListener;
import com.google.ads.mediation.MediationInterstitialAdapter;
import com.google.ads.mediation.MediationInterstitialListener;
import com.google.ads.mediation.inmobi.InMobiAdapterExtras;
import com.google.ads.mediation.inmobi.InMobiAdapterServerParameters;
import com.inmobi.commons.AnimationType;
import com.inmobi.commons.GenderType;
import com.inmobi.commons.InMobi;
import com.inmobi.monetization.IMBanner;
import com.inmobi.monetization.IMBannerListener;
import com.inmobi.monetization.IMErrorCode;
import com.inmobi.monetization.IMIncentivisedListener;
import com.inmobi.monetization.IMInterstitial;
import com.inmobi.monetization.IMInterstitialListener;
import com.inmobi.monetization.IMInterstitial.State;
...

public final class InMobiAdapter implements MediationInterstitialAdapter<InMobiAdapterExtras, InMobiAdapterServerParameters>, MediationBannerAdapter<InMobiAdapterExtras, InMobiAdapterServerParameters> {

变成：

package com.google.ads.mediation.inmobi;

...
import com.google.ads.AdSize;
import com.google.ads.AdRequest.ErrorCode;
import com.google.ads.mediation.MediationAdRequest;
import com.google.ads.mediation.MediationBannerListener;
import com.google.ads.mediation.MediationInterstitialListener;
import com.google.ads.mediation.inmobi.InMobiAdapterExtras;
import com.google.ads.mediation.inmobi.InMobiAdapterServerParameters;
import com.inmobi.commons.AnimationType;
import com.inmobi.commons.GenderType;
import com.inmobi.commons.InMobi;
import com.inmobi.monetization.IMBanner;
import com.inmobi.monetization.IMBannerListener;
import com.inmobi.monetization.IMErrorCode;
import com.inmobi.monetization.IMIncentivisedListener;
import com.inmobi.monetization.IMInterstitial;
import com.inmobi.monetization.IMInterstitialListener;
import com.inmobi.monetization.IMInterstitial.State;
...

public final class InMobiAdapter {

我的 proguard 设置如下，这就是为什么 InmobiAdapter 类的代码没有被混淆的原因。但是我的 MediationInterstitialAdapter 接口等被丢弃：

> -optimizations !code/simplification/arithmetic,!code/simplification/cast,!field/*,!class/merging/*
> -optimizationpasses 3
> -allowaccessmodification
...
>  -keep class com.google.** { *; }

我应该设置什么来保留 “实现 ...” 部分

Answer 1

对所有界面执行此操作

-keep interface com.google.ads.mediation.MediationBannerAdapter{
<methods>;}