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/C0217g.java

@@ -0,0 +1,81 @@
+package androidx.recyclerview.widget;
+
+import java.util.Collections;
+import java.util.Iterator;
+import java.util.List;
+import java.util.concurrent.CopyOnWriteArrayList;
+import java.util.concurrent.ExecutorService;
+
+/* renamed from: androidx.recyclerview.widget.g, reason: case insensitive filesystem */
+/* loaded from: classes.dex */
+public final class C0217g {
+    public static final ExecutorC0215f h = new ExecutorC0215f();
+
+    /* renamed from: a, reason: collision with root package name */
+    public final C0209c f3810a;
+
+    /* renamed from: b, reason: collision with root package name */
+    public final F.i f3811b;
+
+    /* renamed from: e, reason: collision with root package name */
+    public List f3814e;
+
+    /* renamed from: g, reason: collision with root package name */
+    public int f3816g;
+
+    /* renamed from: d, reason: collision with root package name */
+    public final CopyOnWriteArrayList f3813d = new CopyOnWriteArrayList();
+
+    /* renamed from: f, reason: collision with root package name */
+    public List f3815f = Collections.EMPTY_LIST;
+
+    /* renamed from: c, reason: collision with root package name */
+    public final ExecutorC0215f f3812c = h;
+
+    public C0217g(C0209c c0209c, F.i iVar) {
+        this.f3810a = c0209c;
+        this.f3811b = iVar;
+    }
+
+    public final void a(List list, Runnable runnable) {
+        Iterator it = this.f3813d.iterator();
+        while (it.hasNext()) {
+            InterfaceC0213e interfaceC0213e = (InterfaceC0213e) it.next();
+            ((Y) interfaceC0213e).f3781a.onCurrentListChanged(list, this.f3815f);
+        }
+        if (runnable != null) {
+            runnable.run();
+        }
+    }
+
+    public final void b(List list, Runnable runnable) {
+        int i = this.f3816g + 1;
+        this.f3816g = i;
+        List list2 = this.f3814e;
+        if (list == list2) {
+            if (runnable != null) {
+                runnable.run();
+                return;
+            }
+            return;
+        }
+        List list3 = this.f3815f;
+        C0209c c0209c = this.f3810a;
+        if (list == null) {
+            int size = list2.size();
+            this.f3814e = null;
+            this.f3815f = Collections.EMPTY_LIST;
+            c0209c.e(0, size);
+            a(list3, runnable);
+            return;
+        }
+        if (list2 != null) {
+            ((ExecutorService) this.f3811b.f490b).execute(new androidx.fragment.app.D0(this, list2, list, i, runnable));
+            return;
+        }
+        this.f3814e = list;
+        this.f3815f = Collections.unmodifiableList(list);
+        c0209c.d(0, list.size());
+        a(list3, runnable);
+    }
+}