fix(app): fix JSON serializing and retrofit body issues which are caused by ProGuard

Signed-off-by: Trumeet <[email protected]>

Author: Trumeet

app/build.gradle

@@ -66,6 +66,10 @@ android {
     dataBinding {
         enabled = true
     }
+    lintOptions {
+        checkReleaseBuilds false
+        abortOnError false
+    }
 }
 
 dependencies {
@@ -87,7 +91,7 @@ dependencies {
     implementation "android.arch.navigation:navigation-fragment:$nav_version"
     implementation "android.arch.navigation:navigation-ui:$nav_version"
     // Retrofit & RxJava
-    def retrofitVersion = "2.4.0"
+    def retrofitVersion = "2.5.0"
     implementation"com.squareup.retrofit2:retrofit:$retrofitVersion"
     implementation "com.squareup.retrofit2:converter-gson:$retrofitVersion"
     implementation 'com.google.android.gms:play-services-oss-licenses:16.0.1'

app/proguard-rules.pro

@@ -1,3 +1,4 @@
+# MiPush
 -keep class moe.yuuta.mipushtester.push.PushReceiver {*;}
 -dontwarn com.xiaomi.push.**
 -dontwarn com.xiaomi.mipush.**
@@ -6,4 +7,31 @@
 -dontwarn javax.annotation.**
 -keepnames class okhttp3.internal.publicsuffix.PublicSuffixDatabase
 -dontwarn org.codehaus.mojo.animal_sniffer.*
--dontwarn okhttp3.internal.platform.ConscryptPlatform
+-dontwarn okhttp3.internal.platform.ConscryptPlatform
+
+# GSON
+-keepattributes Signature
+-keepattributes *Annotation*
+-keepattributes EnclosingMethod
+-keep class sun.misc.Unsafe { *; }
+-keep class com.google.gson.stream.** { *; }
+
+# API
+-keep class moe.yuuta.mipushtester.push.PushRequest {
+ *;
+ <fields>;
+}
+-keep class moe.yuuta.mipushtester.update.Update {
+ *;
+ <fields>;
+}
+
+# Retrofit
+-keepattributes Signature, InnerClasses, EnclosingMethod
+-keepclassmembers,allowshrinking,allowobfuscation interface * {
+    @retrofit2.http.* <methods>;
+}
+-dontwarn org.codehaus.mojo.animal_sniffer.IgnoreJRERequirement
+-dontwarn javax.annotation.**
+-dontwarn kotlin.Unit
+-dontwarn retrofit2.-KotlinExtensions