hopefully fixes an unreproducible serialization crash

app/proguard-rules.pro

@@ -65,3 +65,25 @@
 
 # Enum
 -optimizations !class/unboxing/enum
+
+# Serialization
+-keepattributes *Annotation*, InnerClasses
+-dontnote kotlinx.serialization.AnnotationsKt # core serialization annotations
+
+# kotlinx-serialization-json specific. Add this if you have java.lang.NoClassDefFoundError kotlinx.serialization.json.JsonObjectSerializer
+-keepclassmembers class kotlinx.serialization.json.** {
+    *** Companion;
+}
+-keepclasseswithmembers class kotlinx.serialization.json.** {
+    kotlinx.serialization.KSerializer serializer(...);
+}
+
+-keep,includedescriptorclasses class net.pokeranalytics.android.**$$serializer { *; }
+-keepclassmembers class net.pokeranalytics.android.** {
+    *** Companion;
+}
+-keepclasseswithmembers class net.pokeranalytics.android.** {
+    kotlinx.serialization.KSerializer serializer(...);
+}
+
+

app/src/main/java/net/pokeranalytics/android/api/CurrencyConverterApi.kt

@@ -1,6 +1,7 @@
 package net.pokeranalytics.android.api
 
 import android.content.Context
+import androidx.annotation.Keep
 import com.android.volley.VolleyError
 import com.android.volley.toolbox.StringRequest
 import com.android.volley.toolbox.Volley
@@ -9,8 +10,11 @@ import kotlinx.serialization.decodeFromString
 import kotlinx.serialization.json.Json
 import timber.log.Timber
 
+@Keep
 @Serializable
 data class RateResponse(var info: RateInfo)
+
+@Keep
 @Serializable
 data class RateInfo(var rate: Double)
 
@@ -23,13 +27,8 @@ class CurrencyConverterApi {
 		fun currencyRate(fromCurrency: String, toCurrency: String, context: Context, callback: (Double?, VolleyError?) -> (Unit)) {
 
 			val queue = Volley.newRequestQueue(context)
-//			val url = "https://free.currconv.com/api/v7/convert?q=${pair}&compact=ultra&apiKey=9b56e742a75392c8aeb7"
-
 			val url = "https://api.apilayer.com/exchangerates_data/convert?to=$toCurrency&from=$fromCurrency&amount=1"
 
-			// https://free.currconv.com/api/v7/convert?q=GBP_USD&compact=ultra&apiKey=5ba8d38995282fe8b1c8
-			// { "USD_PHP": 44.1105, "PHP_USD": 0.0227 }
-
 			Timber.d("Api call = $url")
 
 			val stringRequest = object : StringRequest(

app/src/main/java/net/pokeranalytics/android/ui/fragment/SettingsFragment.kt

@@ -168,15 +168,16 @@ class SettingsFragment : RealmFragment(), RowRepresentableDelegate, StaticRowRep
 
 				val message = requireContext().getString(R.string.currency_rate_confirmation, mainCurrencyCode, currencyCode)
 
-
-//				val message = "Please enter the $mainCurrencyCode to $currencyCode rate to apply to all your bankrolls"
-				showEditTextAlertDialog(requireContext(), InputType.TYPE_CLASS_NUMBER or InputType.TYPE_NUMBER_FLAG_DECIMAL,
+				context?.let { context ->
+					showEditTextAlertDialog(context, InputType.TYPE_CLASS_NUMBER or InputType.TYPE_NUMBER_FLAG_DECIMAL,
 						message = message, editTextText = apiRate?.toString()) { value ->
 						value.toDoubleOrNull()?.let { rate ->
 							updateMainCurrency(currencyCode, rate)
 						}
 					}
 				}
+
+			}
 		}
 
 	}