发布构建应用程序崩溃导致 proguard 规则

Question

I have a bunch of Recycler views in my app that gets data from the firestore database. Everything went fine in my debug app but when I added minifyEnabled true In my proguard everything worked fine but the activity hosts recycler fails with the below logcat error. I'm totally unaware of how to add the proguard rules for the model classes

I just made my stacktrace and this is the error

E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.swf.sahrudhayafoundation, PID: 30519
    java.lang.RuntimeException: No properties to serialize found on class com.swf.sahrudhayafoundation.q.b
        at com.google.firebase.firestore.o0.l$a.<init>(:714)
        at com.google.firebase.firestore.o0.l.z(:377)
        at com.google.firebase.firestore.o0.l.e(:540)
        at com.google.firebase.firestore.o0.l.s(:253)
        at com.google.firebase.firestore.o0.l.p(:100)
        at com.google.firebase.firestore.i.o(:187)
        at com.google.firebase.firestore.z.o(:116)
        at com.google.firebase.firestore.i.n(:165)
        at com.google.firebase.firestore.z.n(:97)
        at com.firebase.ui.firestore.b.b(:23)
        at com.firebase.ui.firestore.b.a(:12)
        at c.a.a.a.a.a(:36)
        at c.a.a.a.c.get(:52)
        at com.firebase.ui.firestore.FirestoreRecyclerAdapter.I(:86)
        at com.firebase.ui.firestore.FirestoreRecyclerAdapter.x(:158)
        at androidx.recyclerview.widget.RecyclerView$g.y(:7065)
        at androidx.recyclerview.widget.RecyclerView$g.k(:7107)
        at androidx.recyclerview.widget.RecyclerView$v.H(:6012)
        at androidx.recyclerview.widget.RecyclerView$v.I(:6279)
        at androidx.recyclerview.widget.RecyclerView$v.p(:6118)
        at androidx.recyclerview.widget.RecyclerView$v.o(:6114)
        at androidx.recyclerview.widget.LinearLayoutManager$c.d(:2303)
        at androidx.recyclerview.widget.LinearLayoutManager.s2(:1627)
        at androidx.recyclerview.widget.LinearLayoutManager.U1(:1587)
        at androidx.recyclerview.widget.LinearLayoutManager.X0(:665)
        at androidx.recyclerview.widget.RecyclerView.dispatchLayoutStep2(:4134)
        at androidx.recyclerview.widget.RecyclerView.onMeasure(:3540)
        at android.view.View.measure(View.java:24817)
        at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6934)
        at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1552)
        at android.widget.LinearLayout.measureVertical(LinearLayout.java:842)
        at android.widget.LinearLayout.onMeasure(LinearLayout.java:721)
        at android.view.View.measure(View.java:24817)
        at android.widget.ScrollView.measureChildWithMargins(ScrollView.java:1455)
        at android.widget.FrameLayout.onMeasure(FrameLayout.java:194)
        at android.widget.ScrollView.onMeasure(ScrollView.java:475)
        at android.view.View.measure(View.java:24817)
        at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6934)
        at android.widget.FrameLayout.onMeasure(FrameLayout.java:194)
        at androidx.appcompat.widget.ContentFrameLayout.onMeasure(:143)
        at android.view.View.measure(View.java:24817)
        at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6934)
        at androidx.appcompat.widget.ActionBarOverlayLayout.onMeasure(:403)
        at android.view.View.measure(View.java:24817)
        at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6934)
        at android.widget.FrameLayout.onMeasure(FrameLayout.java:194)
        at android.view.View.measure(View.java:24817)
        at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6934)
        at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1552)
        at android.widget.LinearLayout.measureVertical(LinearLayout.java:842)
        at android.widget.LinearLayout.onMeasure(LinearLayout.java:721)
        at android.view.View.measure(View.java:24817)
        at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6934)
        at android.widget.FrameLayout.onMeasure(FrameLayout.java:194)
        at com.android.internal.policy.DecorView.onMeasure(DecorView.java:795)
        at android.view.View.measure(View.java:24817)
        at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:3361)
        at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:2121)
        at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2415)
        at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:2005)
        at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:8204)
        at android.view.Choreographer$CallbackRecord.run(Choreographer.java:1085)
        at android.view.Choreographer.doCallbacks(Choreographer.java:908)
        at android.view.Choreographer.doFrame(Choreographer.java:835)
E/AndroidRuntime:     at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:1070)
        at android.os.Handler.handleCallback(Handler.java:883)
        at android.os.Handler.dispatchMessage(Handler.java:100)
        at android.os.Looper.loop(Looper.java:228)
        at android.app.ActivityThread.main(ActivityThread.java:7782)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:981)

Answer 1

May be you have problem because of proguard, to be sure just try by disabling minify in your release build type

buildTypes {
    release {
        minifyEnabled false
        ------
      }
    }

Answer 2

Add below code in your proguard rule

-keep class package.to.yourmodels.** { *; }
-keepattributes *Annotation*
-keepattributes Signature
-dontwarn com.squareup.okhttp.*
-dontwarn rx.**
-dontwarn retrofit2.**
-keep class retrofit2.** { *; }
-keepattributes Exceptions
-keepattributes RuntimeVisibleAnnotations
-keepattributes RuntimeInvisibleAnnotations
-keepattributes RuntimeVisibleParameterAnnotations
-keepattributes RuntimeInvisibleParameterAnnotations