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/RunnableC0214e0.java

@@ -0,0 +1,123 @@
+package androidx.recyclerview.widget;
+
+import android.view.View;
+import android.view.ViewPropertyAnimator;
+import com.google.android.gms.maps.model.BitmapDescriptorFactory;
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.WeakHashMap;
+
+/* renamed from: androidx.recyclerview.widget.e0, reason: case insensitive filesystem */
+/* loaded from: classes.dex */
+public final class RunnableC0214e0 implements Runnable {
+
+    /* renamed from: a, reason: collision with root package name */
+    public final /* synthetic */ int f3806a;
+
+    /* renamed from: b, reason: collision with root package name */
+    public final /* synthetic */ RecyclerView f3807b;
+
+    public /* synthetic */ RunnableC0214e0(RecyclerView recyclerView, int i) {
+        this.f3806a = i;
+        this.f3807b = recyclerView;
+    }
+
+    @Override // java.lang.Runnable
+    public final void run() {
+        RecyclerView recyclerView = this.f3807b;
+        switch (this.f3806a) {
+            case 0:
+                if (!recyclerView.f3709u || recyclerView.isLayoutRequested()) {
+                    return;
+                }
+                if (!recyclerView.f3705s) {
+                    recyclerView.requestLayout();
+                    return;
+                } else if (recyclerView.f3715x) {
+                    recyclerView.f3713w = true;
+                    return;
+                } else {
+                    recyclerView.q();
+                    return;
+                }
+            default:
+                AbstractC0230m0 abstractC0230m0 = recyclerView.f3661M;
+                if (abstractC0230m0 != null) {
+                    C0237q c0237q = (C0237q) abstractC0230m0;
+                    ArrayList arrayList = c0237q.h;
+                    boolean isEmpty = arrayList.isEmpty();
+                    ArrayList arrayList2 = c0237q.f3875j;
+                    boolean isEmpty2 = arrayList2.isEmpty();
+                    ArrayList arrayList3 = c0237q.f3876k;
+                    boolean isEmpty3 = arrayList3.isEmpty();
+                    ArrayList arrayList4 = c0237q.i;
+                    boolean isEmpty4 = arrayList4.isEmpty();
+                    if (!isEmpty || !isEmpty2 || !isEmpty4 || !isEmpty3) {
+                        Iterator it = arrayList.iterator();
+                        while (true) {
+                            boolean hasNext = it.hasNext();
+                            long j4 = c0237q.f3848d;
+                            if (hasNext) {
+                                I0 i02 = (I0) it.next();
+                                View view = i02.itemView;
+                                ViewPropertyAnimator animate = view.animate();
+                                c0237q.f3881q.add(i02);
+                                animate.setDuration(j4).alpha(BitmapDescriptorFactory.HUE_RED).setListener(new C0227l(c0237q, i02, animate, view)).start();
+                                arrayList = arrayList;
+                            } else {
+                                arrayList.clear();
+                                if (!isEmpty2) {
+                                    ArrayList arrayList5 = new ArrayList();
+                                    arrayList5.addAll(arrayList2);
+                                    c0237q.f3878m.add(arrayList5);
+                                    arrayList2.clear();
+                                    RunnableC0225k runnableC0225k = new RunnableC0225k(c0237q, arrayList5, 0);
+                                    if (isEmpty) {
+                                        runnableC0225k.run();
+                                    } else {
+                                        View view2 = ((C0235p) arrayList5.get(0)).f3864a.itemView;
+                                        WeakHashMap weakHashMap = O.X.f1226a;
+                                        view2.postOnAnimationDelayed(runnableC0225k, j4);
+                                    }
+                                }
+                                if (!isEmpty3) {
+                                    ArrayList arrayList6 = new ArrayList();
+                                    arrayList6.addAll(arrayList3);
+                                    c0237q.f3879n.add(arrayList6);
+                                    arrayList3.clear();
+                                    RunnableC0225k runnableC0225k2 = new RunnableC0225k(c0237q, arrayList6, 1);
+                                    if (isEmpty) {
+                                        runnableC0225k2.run();
+                                    } else {
+                                        View view3 = ((C0233o) arrayList6.get(0)).f3856a.itemView;
+                                        WeakHashMap weakHashMap2 = O.X.f1226a;
+                                        view3.postOnAnimationDelayed(runnableC0225k2, j4);
+                                    }
+                                }
+                                if (!isEmpty4) {
+                                    ArrayList arrayList7 = new ArrayList();
+                                    arrayList7.addAll(arrayList4);
+                                    c0237q.f3877l.add(arrayList7);
+                                    arrayList4.clear();
+                                    RunnableC0225k runnableC0225k3 = new RunnableC0225k(c0237q, arrayList7, 2);
+                                    if (isEmpty && isEmpty2 && isEmpty3) {
+                                        runnableC0225k3.run();
+                                    } else {
+                                        if (isEmpty) {
+                                            j4 = 0;
+                                        }
+                                        long max = Math.max(!isEmpty2 ? c0237q.f3849e : 0L, isEmpty3 ? 0L : c0237q.f3850f) + j4;
+                                        View view4 = ((I0) arrayList7.get(0)).itemView;
+                                        WeakHashMap weakHashMap3 = O.X.f1226a;
+                                        view4.postOnAnimationDelayed(runnableC0225k3, max);
+                                    }
+                                }
+                            }
+                        }
+                    }
+                }
+                recyclerView.f3697n0 = false;
+                return;
+        }
+    }
+}