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/fragment/app/r.java

@@ -0,0 +1,55 @@
+package androidx.fragment.app;
+
+import android.transition.Transition;
+import kotlin.jvm.internal.Intrinsics;
+
+/* loaded from: classes.dex */
+public final class r extends AbstractC0159m {
+
+    /* renamed from: b, reason: collision with root package name */
+    public final Object f3220b;
+
+    /* renamed from: c, reason: collision with root package name */
+    public final boolean f3221c;
+
+    /* renamed from: d, reason: collision with root package name */
+    public final Object f3222d;
+
+    /* JADX WARN: 'super' call moved to the top of the method (can break code semantics) */
+    public r(J0 operation, boolean z3, boolean z4) {
+        super(operation);
+        Intrinsics.checkNotNullParameter(operation, "operation");
+        M0 m02 = operation.f3036a;
+        M0 m03 = M0.f3055b;
+        K k4 = operation.f3038c;
+        this.f3220b = m02 == m03 ? z3 ? k4.getReenterTransition() : k4.getEnterTransition() : z3 ? k4.getReturnTransition() : k4.getExitTransition();
+        this.f3221c = operation.f3036a == m03 ? z3 ? k4.getAllowReturnTransitionOverlap() : k4.getAllowEnterTransitionOverlap() : true;
+        this.f3222d = z4 ? z3 ? k4.getSharedElementReturnTransition() : k4.getSharedElementEnterTransition() : null;
+    }
+
+    public final E0 b() {
+        Object obj = this.f3220b;
+        E0 c4 = c(obj);
+        Object obj2 = this.f3222d;
+        E0 c5 = c(obj2);
+        if (c4 == null || c5 == null || c4 == c5) {
+            return c4 == null ? c5 : c4;
+        }
+        throw new IllegalArgumentException(("Mixing framework transitions and AndroidX transitions is not allowed. Fragment " + this.f3181a.f3038c + " returned Transition " + obj + " which uses a different Transition  type than its shared element transition " + obj2).toString());
+    }
+
+    public final E0 c(Object obj) {
+        if (obj == null) {
+            return null;
+        }
+        C0 c02 = x0.f3272a;
+        if (obj instanceof Transition) {
+            return c02;
+        }
+        E0 e02 = x0.f3273b;
+        if (e02 != null && e02.g(obj)) {
+            return e02;
+        }
+        throw new IllegalArgumentException("Transition " + obj + " for fragment " + this.f3181a.f3038c + " is not a valid framework Transition or AndroidX Transition");
+    }
+}