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/viewpager2/adapter/d.java

@@ -0,0 +1,113 @@
+package androidx.viewpager2.adapter;
+
+import C.w;
+import H2.m;
+import android.view.ViewParent;
+import androidx.fragment.app.AbstractC0158l0;
+import androidx.fragment.app.C0135a;
+import androidx.fragment.app.K;
+import androidx.lifecycle.B;
+import androidx.recyclerview.widget.RecyclerView;
+import androidx.viewpager2.widget.ViewPager2;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Iterator;
+import java.util.List;
+
+/* loaded from: classes.dex */
+public final class d {
+
+    /* renamed from: a, reason: collision with root package name */
+    public H0.b f4071a;
+
+    /* renamed from: b, reason: collision with root package name */
+    public m f4072b;
+
+    /* renamed from: c, reason: collision with root package name */
+    public c f4073c;
+
+    /* renamed from: d, reason: collision with root package name */
+    public ViewPager2 f4074d;
+
+    /* renamed from: e, reason: collision with root package name */
+    public long f4075e = -1;
+
+    /* renamed from: f, reason: collision with root package name */
+    public final /* synthetic */ f f4076f;
+
+    public d(f fVar) {
+        this.f4076f = fVar;
+    }
+
+    public static ViewPager2 a(RecyclerView recyclerView) {
+        ViewParent parent = recyclerView.getParent();
+        if (parent instanceof ViewPager2) {
+            return (ViewPager2) parent;
+        }
+        throw new IllegalStateException("Expected ViewPager2 instance. Got: " + parent);
+    }
+
+    public final void b(boolean z3) {
+        int currentItem;
+        K k4;
+        f fVar = this.f4076f;
+        if (fVar.shouldDelayFragmentTransactions() || this.f4074d.getScrollState() != 0 || fVar.mFragments.g() == 0 || fVar.getItemCount() == 0 || (currentItem = this.f4074d.getCurrentItem()) >= fVar.getItemCount()) {
+            return;
+        }
+        long itemId = fVar.getItemId(currentItem);
+        if ((itemId != this.f4075e || z3) && (k4 = (K) fVar.mFragments.b(itemId)) != null && k4.isAdded()) {
+            this.f4075e = itemId;
+            AbstractC0158l0 abstractC0158l0 = fVar.mFragmentManager;
+            abstractC0158l0.getClass();
+            C0135a c0135a = new C0135a(abstractC0158l0);
+            ArrayList arrayList = new ArrayList();
+            K k5 = null;
+            for (int i = 0; i < fVar.mFragments.g(); i++) {
+                long d4 = fVar.mFragments.d(i);
+                K k6 = (K) fVar.mFragments.h(i);
+                if (k6.isAdded()) {
+                    if (d4 != this.f4075e) {
+                        c0135a.h(k6, B.f3283d);
+                        b bVar = fVar.mFragmentEventDispatcher;
+                        bVar.getClass();
+                        ArrayList arrayList2 = new ArrayList();
+                        Iterator it = bVar.f4069a.iterator();
+                        if (it.hasNext()) {
+                            throw w.g(it);
+                        }
+                        arrayList.add(arrayList2);
+                    } else {
+                        k5 = k6;
+                    }
+                    k6.setMenuVisibility(d4 == this.f4075e);
+                }
+            }
+            if (k5 != null) {
+                c0135a.h(k5, B.f3284e);
+                b bVar2 = fVar.mFragmentEventDispatcher;
+                bVar2.getClass();
+                ArrayList arrayList3 = new ArrayList();
+                Iterator it2 = bVar2.f4069a.iterator();
+                if (it2.hasNext()) {
+                    throw w.g(it2);
+                }
+                arrayList.add(arrayList3);
+            }
+            if (c0135a.f3257a.isEmpty()) {
+                return;
+            }
+            if (c0135a.f3263g) {
+                throw new IllegalStateException("This transaction is already being added to the back stack");
+            }
+            c0135a.h = false;
+            c0135a.f3084q.B(c0135a, false);
+            Collections.reverse(arrayList);
+            Iterator it3 = arrayList.iterator();
+            while (it3.hasNext()) {
+                List list = (List) it3.next();
+                fVar.mFragmentEventDispatcher.getClass();
+                b.a(list);
+            }
+        }
+    }
+}