app/proguard-rules.pro

@@ -59,7 +59,7 @@
 -keep class com.google.android.material.tabs.** {*;}
 
 # ServiceLoader support
--keepnames class kotlinx.coroutines.internal.MainDispatcherFactory {}
+        -keepnames class kotlinx.coroutines.internal.MainDispatcherFactory {}
 -keepnames class kotlinx.coroutines.CoroutineExceptionHandler {}
 
 # Most of volatile fields are updated with AFU and should not be mangled
@@ -73,36 +73,9 @@
 
 -keep class pl.szczodrzynski.edziennik.data.api.szkolny.interceptor.Signing { public final byte[] pleaseStopRightNow(java.lang.String, long); }
 
--keepclassmembers class pl.szczodrzynski.edziennik.ui.login.qr.* { *; }
 -keepclassmembers class pl.szczodrzynski.edziennik.data.api.szkolny.request.** { *; }
 -keepclassmembers class pl.szczodrzynski.edziennik.data.api.szkolny.response.** { *; }
 -keepclassmembernames class pl.szczodrzynski.edziennik.ui.login.LoginInfo$Platform { *; }
 
 -keepclassmembernames class pl.szczodrzynski.fslogin.realm.RealmData { *; }
 -keepclassmembernames class pl.szczodrzynski.fslogin.realm.RealmData$Type { *; }
-
-# Exclude Retrofit2
--keepattributes Signature, InnerClasses, EnclosingMethod
--keepattributes RuntimeVisibleAnnotations, RuntimeVisibleParameterAnnotations
--keepattributes AnnotationDefault
-
--keepclassmembers,allowshrinking,allowobfuscation interface * {
-    @retrofit2.http.* <methods>;
-}
-
--dontwarn org.codehaus.mojo.animal_sniffer.IgnoreJRERequirement
--dontwarn javax.annotation.**
--dontwarn kotlin.Unit
--dontwarn retrofit2.KotlinExtensions
--dontwarn retrofit2.KotlinExtensions$*
-
--if interface * { @retrofit2.http.* <methods>; }
--keep,allowobfuscation interface <1>
-
--if interface * { @retrofit2.http.* <methods>; }
--keep,allowobfuscation interface * extends <1>
-
--keep,allowobfuscation,allowshrinking class kotlin.coroutines.Continuation
--if interface * { @retrofit2.http.* public *** *(...); }
--keep,allowoptimization,allowshrinking,allowobfuscation class <3>
--keep,allowobfuscation,allowshrinking class retrofit2.Response

app/src/main/java/pl/szczodrzynski/edziennik/ui/login/LoginFormFragment.kt

@@ -228,7 +228,7 @@ class LoginFormFragment : Fragment(), CoroutineScope {
         val qrDecoderClass = credential.qrDecoderClass ?: return
         app.permissionManager.requestCameraPermission(activity, R.string.permissions_qr_scanner) {
             QrScannerDialog(activity, onCodeScanned = { code ->
-                val decoder = qrDecoderClass.getDeclaredConstructor().newInstance()
+                val decoder = qrDecoderClass.newInstance()
                 val values = decoder.decode(code)
                 if (values == null) {
                     Toast.makeText(activity, R.string.login_qr_decoding_error, Toast.LENGTH_SHORT).show()