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/recyclerview/widget/S.java

@@ -0,0 +1,87 @@
+package androidx.recyclerview.widget;
+
+import android.view.View;
+import kotlin.jvm.internal.IntCompanionObject;
+
+/* loaded from: classes.dex */
+public final class S {
+
+    /* renamed from: a, reason: collision with root package name */
+    public AbstractC0208b0 f3721a;
+
+    /* renamed from: b, reason: collision with root package name */
+    public int f3722b;
+
+    /* renamed from: c, reason: collision with root package name */
+    public int f3723c;
+
+    /* renamed from: d, reason: collision with root package name */
+    public boolean f3724d;
+
+    /* renamed from: e, reason: collision with root package name */
+    public boolean f3725e;
+
+    public S() {
+        d();
+    }
+
+    public final void a() {
+        this.f3723c = this.f3724d ? this.f3721a.g() : this.f3721a.k();
+    }
+
+    public final void b(View view, int i) {
+        if (this.f3724d) {
+            int b4 = this.f3721a.b(view);
+            AbstractC0208b0 abstractC0208b0 = this.f3721a;
+            this.f3723c = (Integer.MIN_VALUE == abstractC0208b0.f3793a ? 0 : abstractC0208b0.l() - abstractC0208b0.f3793a) + b4;
+        } else {
+            this.f3723c = this.f3721a.e(view);
+        }
+        this.f3722b = i;
+    }
+
+    public final void c(View view, int i) {
+        AbstractC0208b0 abstractC0208b0 = this.f3721a;
+        int l4 = Integer.MIN_VALUE == abstractC0208b0.f3793a ? 0 : abstractC0208b0.l() - abstractC0208b0.f3793a;
+        if (l4 >= 0) {
+            b(view, i);
+            return;
+        }
+        this.f3722b = i;
+        if (!this.f3724d) {
+            int e4 = this.f3721a.e(view);
+            int k4 = e4 - this.f3721a.k();
+            this.f3723c = e4;
+            if (k4 > 0) {
+                int g4 = (this.f3721a.g() - Math.min(0, (this.f3721a.g() - l4) - this.f3721a.b(view))) - (this.f3721a.c(view) + e4);
+                if (g4 < 0) {
+                    this.f3723c -= Math.min(k4, -g4);
+                    return;
+                }
+                return;
+            }
+            return;
+        }
+        int g5 = (this.f3721a.g() - l4) - this.f3721a.b(view);
+        this.f3723c = this.f3721a.g() - g5;
+        if (g5 > 0) {
+            int c4 = this.f3723c - this.f3721a.c(view);
+            int k5 = this.f3721a.k();
+            int min = c4 - (Math.min(this.f3721a.e(view) - k5, 0) + k5);
+            if (min < 0) {
+                this.f3723c = Math.min(g5, -min) + this.f3723c;
+            }
+        }
+    }
+
+    public final void d() {
+        this.f3722b = -1;
+        this.f3723c = IntCompanionObject.MIN_VALUE;
+        this.f3724d = false;
+        this.f3725e = false;
+    }
+
+    public final String toString() {
+        return "AnchorInfo{mPosition=" + this.f3722b + ", mCoordinate=" + this.f3723c + ", mLayoutFromEnd=" + this.f3724d + ", mValid=" + this.f3725e + '}';
+    }
+}