Primer paso de la investigacion. Se aportan el .apk, las carpetas con el apk extraido y el apk descompilado. El archivo API_DOCUMENTATION.md es un archivo donde se anotaran los descubrimientos del funcionamiento de la API, y los .py son scripts para probar la funcionalidad de la API con los métodos que vayamos encontrando. Finalmente, los archivos .js son scripts de Frida para extraer informacion de la APP durante la ejecucion.

apk_decompiled/sources/androidx/core/widget/RemoteViewsCompatService.java

@@ -0,0 +1,31 @@
+package androidx.core.widget;
+
+import U.s;
+import android.content.Intent;
+import android.widget.RemoteViewsService;
+import kotlin.Metadata;
+import kotlin.jvm.internal.Intrinsics;
+import kotlin.jvm.internal.SourceDebugExtension;
+
+@Metadata(d1 = {"\u0000\f\n\u0002\u0018\u0002\n\u0002\u0018\u0002\n\u0002\b\u0005\b\u0007\u0018\u00002\u00020\u0001:\u0002\u0004\u0005B\u0007¢\u0006\u0004\b\u0002\u0010\u0003¨\u0006\u0006"}, d2 = {"Landroidx/core/widget/RemoteViewsCompatService;", "Landroid/widget/RemoteViewsService;", "<init>", "()V", "U/r", "U/s", "core-remoteviews_release"}, k = 1, mv = {1, 8, 0}, xi = 48)
+@SourceDebugExtension({"SMAP\nRemoteViewsCompatService.kt\nKotlin\n*S Kotlin\n*F\n+ 1 RemoteViewsCompatService.kt\nandroidx/core/widget/RemoteViewsCompatService\n+ 2 fake.kt\nkotlin/jvm/internal/FakeKt\n*L\n1#1,319:1\n1#2:320\n*E\n"})
+/* loaded from: classes.dex */
+public final class RemoteViewsCompatService extends RemoteViewsService {
+
+    /* renamed from: a, reason: collision with root package name */
+    public static final /* synthetic */ int f2820a = 0;
+
+    @Override // android.widget.RemoteViewsService
+    public final RemoteViewsService.RemoteViewsFactory onGetViewFactory(Intent intent) {
+        Intrinsics.checkNotNullParameter(intent, "intent");
+        int intExtra = intent.getIntExtra("appWidgetId", -1);
+        if (intExtra == -1) {
+            throw new IllegalStateException("No app widget id was present in the intent");
+        }
+        int intExtra2 = intent.getIntExtra("androidx.core.widget.extra.view_id", -1);
+        if (intExtra2 != -1) {
+            return new s(this, intExtra, intExtra2);
+        }
+        throw new IllegalStateException("No view id was present in the intent");
+    }
+}