Add ProGuard line to avoid AppCompat crash

app/build.gradle

@@ -88,7 +88,6 @@ dependencies {
     implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
     implementation 'androidx.fragment:fragment-ktx:1.0.0'
     implementation 'androidx.lifecycle:lifecycle-extensions:2.0.0'
-    implementation 'androidx.lifecycle:lifecycle-livedata:2.0.0'
     implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.0.0'
     implementation 'androidx.paging:paging-runtime-ktx:2.1.0'
     implementation 'androidx.preference:preference:1.0.0'

app/proguard-rules.txt

@@ -15,6 +15,9 @@
 # Kotlin
 -dontwarn kotlin.**
 
+# https://github.com/material-components/material-components-android/issues/387
+-keep class com.google.android.material.tabs.** {*;}
+
 # Apache Commons
 -dontwarn javax.script.**
 

build.gradle

@@ -8,7 +8,7 @@
 
 buildscript {
     ext.versions = [
-        kotlin: '1.3.31',
+        kotlin: '1.3.41',
         dokka: '0.9.18',
         conscrypt: '2.1.0'
     ]

gradle.properties

@@ -1,4 +1,4 @@
-org.gradle.jvmargs=-Xmx1536M
 org.gradle.parallel=true
+org.gradle.jvmargs=-Xmx4g
 
-android.useAndroidX=true
+android.useAndroidX=true