Proguard

 - Keep : 

    + CustomView, 

    + Fragment, 

    + Model (Retrofit), 

    + Kiểm tra thư viện Implement đã có proguard chưa, 

    + Library Ads

Template:

-keep class com.connectsdk.** { *; }
-keepclassmembers class com.connectsdk.** { *; }

-keep class com.google.gson.reflect.TypeToken
-keep class * extends com.google.gson.reflect.TypeToken
-keep public class * implements java.lang.reflect.Type

-keep public class com.android.installreferrer.** { *; }
-dontwarn com.gowtham.library**
-keep class com.gowtham.library** { *; }
-keep interface com.gowtham.library** { *; }

-keep class com.adjust.sdk.** { *; }
-keep class com.google.android.gms.common.ConnectionResult {
    int SUCCESS;
}
-keep class com.google.android.gms.ads.identifier.AdvertisingIdClient {
    com.google.android.gms.ads.identifier.AdvertisingIdClient$Info getAdvertisingIdInfo(android.content.Context);
}
-keep class com.google.android.gms.ads.identifier.AdvertisingIdClient$Info {
    java.lang.String getId();
    boolean isLimitAdTrackingEnabled();
}
-keep public class com.android.installreferrer.** { *; }
-keep public class com.adjust.sdk.** { *; }

# General Android and Kotlin rules
-dontwarn kotlin.**
-keep class kotlin.Metadata { *; }
-keepclassmembers class **$WhenMappings {
    <fields>;
}
-keep class kotlin.reflect.jvm.internal.** { *; }
-keep class kotlin.TypeCastException { *; }
# OkHttp
-dontwarn okhttp3.**
-keep class okhttp3.** { *; }
-dontwarn okio.**

# Glide
-keep public class * implements com.bumptech.glide.module.GlideModule
-keep public enum com.bumptech.glide.load.ImageHeaderParser$** {
  **[] $VALUES;
  public *;
}

# Guava
-dontwarn com.google.common.**

# Gson
-keep class com.google.gson.stream.** { *; }

# Android
-keep class android.** { *; }
-keep class androidx.** { *; }
-keep class com.google.android.material.** { *; }
-keep class com.google.android.gms.** { *; }
-keep class com.google.firebase.** { *; }

# Support design library
-keep class android.support.design.** { *; }

# Support v7 AppCompat
-keep class android.support.v7.** { *; }

-keepattributes LineNumberTable,SourceFile
-renamesourcefileattribute SourceFile

# Retrofit does reflection on generic parameters. InnerClasses is required to use Signature and
# EnclosingMethod is required to use InnerClasses.
-keepattributes Signature, InnerClasses, EnclosingMethod

# Retrofit does reflection on method and parameter annotations.
-keepattributes RuntimeVisibleAnnotations, RuntimeVisibleParameterAnnotations

# Keep annotation default values (e.g., retrofit2.http.Field.encoded).
-keepattributes AnnotationDefault

# Retain service method parameters when optimizing.
-keepclassmembers,allowshrinking,allowobfuscation interface * {
    @retrofit2.http.* <methods>;
}

# Ignore annotation used for build tooling.
-dontwarn org.codehaus.mojo.animal_sniffer.IgnoreJRERequirement

# Ignore JSR 305 annotations for embedding nullability information.
-dontwarn javax.annotation.**

# Guarded by a NoClassDefFoundError try/catch and only used when on the classpath.
-dontwarn kotlin.Unit

# Top-level functions that can only be used by Kotlin.
-dontwarn retrofit2.KotlinExtensions
-dontwarn retrofit2.KotlinExtensions$*

# With R8 full mode, it sees no subtypes of Retrofit interfaces since they are created with a Proxy
# and replaces all potential values with null. Explicitly keeping the interfaces prevents this.
-if interface * { @retrofit2.http.* <methods>; }
-keep,allowobfuscation interface <1>

# Keep inherited services.
-if interface * { @retrofit2.http.* <methods>; }
-keep,allowobfuscation interface * extends <1>

# With R8 full mode generic signatures are stripped for classes that are not
# kept. Suspend functions are wrapped in continuations where the type argument
# is used.
-keep,allowobfuscation,allowshrinking class kotlin.coroutines.Continuation

# R8 full mode strips generic signatures from return types if not kept.
-if interface * { @retrofit2.http.* public *** *(...); }
-keep,allowoptimization,allowshrinking,allowobfuscation class <3>

# With R8 full mode generic signatures are stripped for classes that are not kept.
-keep,allowobfuscation,allowshrinking class retrofit2.Response

-keep class com.bytedance.sdk.** { *; }