Fix license crash by adding proguard rules

app/proguard-rules.pro

@@ -44,6 +44,13 @@
     public *;
 }
 
+-keepclassmembers class org.pixeldroid.app.settings.licenseObjects.* { *; }
+
+-keep public enum org.pixeldroid.app.settings.licenseObjects.*$** {
+    **[] $VALUES;
+    public *;
+}
+
 # preserve line numbers for crash reporting
 -keepattributes SourceFile,LineNumberTable
 -renamesourcefileattribute SourceFile

app/src/main/java/org/pixeldroid/app/settings/LicenseActivity.kt

@@ -4,7 +4,10 @@ import android.os.Bundle
 import com.google.gson.Gson
 import org.pixeldroid.app.R
 import org.pixeldroid.app.databinding.OpenSourceLicenseBinding
+import org.pixeldroid.app.settings.licenseObjects.Libraries
+import org.pixeldroid.app.settings.licenseObjects.OpenSourceItem
 import org.pixeldroid.app.utils.BaseActivity
+import java.io.FileNotFoundException
 
 /**
  * Displays licenses for all app dependencies. JSON is
@@ -30,13 +33,10 @@ class LicenseActivity: BaseActivity() {
     private fun setupRecyclerView() {
         val text: String = applicationContext.assets.open("licenses.json")
             .bufferedReader().use { it.readText() }
+
         val listObj: List<OpenSourceItem> = Gson().fromJson(text, Libraries::class.java).libraries
 
-        val adapter = OpenSourceLicenseAdapter()
+        val adapter = OpenSourceLicenseAdapter(listObj)
         binding.openSourceLicenseRecyclerView.adapter = adapter
-
-
-        adapter.updateList(listObj)
-
     }
 }

app/src/main/java/org/pixeldroid/app/settings/OpenSourceLicenseAdapter.kt

@@ -7,18 +7,11 @@ import android.view.ViewGroup
 import androidx.core.view.isVisible
 import androidx.recyclerview.widget.RecyclerView
 import org.pixeldroid.app.databinding.OpenSourceItemBinding
+import org.pixeldroid.app.settings.licenseObjects.OpenSourceItem
 
-class OpenSourceLicenseAdapter :
+class OpenSourceLicenseAdapter(private val openSourceItems: List<OpenSourceItem>) :
     RecyclerView.Adapter<OpenSourceLicenseAdapter.OpenSourceLicenceViewHolder>() {
 
-    private var openSourceItems: List<OpenSourceItem> = emptyList()
-
-    @SuppressLint("NotifyDataSetChanged")
-    fun updateList(newOpenSourceItems: List<OpenSourceItem>) {
-        openSourceItems = newOpenSourceItems
-        notifyDataSetChanged()
-    }
-
     override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): OpenSourceLicenceViewHolder
         {
             val itemBinding = OpenSourceItemBinding.inflate(LayoutInflater.from(parent.context), parent, false)
@@ -68,14 +61,3 @@ class OpenSourceLicenseAdapter :
         }
     }
 }
-data class OpenSourceItem(
-    val libraryName: String?,
-    val copyrightHolder: String?,
-    val url: String?,
-    val license: String?,
-    val licenseUrl: String?,
-)
-
-data class Libraries(
-    val libraries: List<OpenSourceItem>
-)

app/src/main/java/org/pixeldroid/app/settings/licenseObjects/Libraries.kt

@@ -0,0 +1,5 @@
+package org.pixeldroid.app.settings.licenseObjects
+
+data class Libraries(
+    val libraries: List<OpenSourceItem>
+)

app/src/main/java/org/pixeldroid/app/settings/licenseObjects/OpenSourceItem.kt

@@ -0,0 +1,10 @@
+package org.pixeldroid.app.settings.licenseObjects
+
+
+data class OpenSourceItem(
+    val libraryName: String?,
+    val copyrightHolder: String?,
+    val url: String?,
+    val license: String?,
+    val licenseUrl: String?,
+)