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/Q0.java

@@ -0,0 +1,129 @@
+package androidx.recyclerview.widget;
+
+import android.view.View;
+import java.util.ArrayList;
+import kotlin.jvm.internal.IntCompanionObject;
+
+/* loaded from: classes.dex */
+public final class Q0 {
+
+    /* renamed from: a, reason: collision with root package name */
+    public final ArrayList f3631a = new ArrayList();
+
+    /* renamed from: b, reason: collision with root package name */
+    public int f3632b = IntCompanionObject.MIN_VALUE;
+
+    /* renamed from: c, reason: collision with root package name */
+    public int f3633c = IntCompanionObject.MIN_VALUE;
+
+    /* renamed from: d, reason: collision with root package name */
+    public int f3634d = 0;
+
+    /* renamed from: e, reason: collision with root package name */
+    public final int f3635e;
+
+    /* renamed from: f, reason: collision with root package name */
+    public final /* synthetic */ StaggeredGridLayoutManager f3636f;
+
+    public Q0(StaggeredGridLayoutManager staggeredGridLayoutManager, int i) {
+        this.f3636f = staggeredGridLayoutManager;
+        this.f3635e = i;
+    }
+
+    public final void a() {
+        View view = (View) this.f3631a.get(r0.size() - 1);
+        N0 n02 = (N0) view.getLayoutParams();
+        this.f3633c = this.f3636f.f3741r.b(view);
+        n02.getClass();
+    }
+
+    public final void b() {
+        this.f3631a.clear();
+        this.f3632b = IntCompanionObject.MIN_VALUE;
+        this.f3633c = IntCompanionObject.MIN_VALUE;
+        this.f3634d = 0;
+    }
+
+    public final int c() {
+        return this.f3636f.f3746w ? e(r1.size() - 1, -1) : e(0, this.f3631a.size());
+    }
+
+    public final int d() {
+        return this.f3636f.f3746w ? e(0, this.f3631a.size()) : e(r1.size() - 1, -1);
+    }
+
+    public final int e(int i, int i4) {
+        StaggeredGridLayoutManager staggeredGridLayoutManager = this.f3636f;
+        int k4 = staggeredGridLayoutManager.f3741r.k();
+        int g4 = staggeredGridLayoutManager.f3741r.g();
+        int i5 = i4 > i ? 1 : -1;
+        while (i != i4) {
+            View view = (View) this.f3631a.get(i);
+            int e4 = staggeredGridLayoutManager.f3741r.e(view);
+            int b4 = staggeredGridLayoutManager.f3741r.b(view);
+            boolean z3 = e4 <= g4;
+            boolean z4 = b4 >= k4;
+            if (z3 && z4 && (e4 < k4 || b4 > g4)) {
+                return AbstractC0238q0.L(view);
+            }
+            i += i5;
+        }
+        return -1;
+    }
+
+    public final int f(int i) {
+        int i4 = this.f3633c;
+        if (i4 != Integer.MIN_VALUE) {
+            return i4;
+        }
+        if (this.f3631a.size() == 0) {
+            return i;
+        }
+        a();
+        return this.f3633c;
+    }
+
+    public final View g(int i, int i4) {
+        StaggeredGridLayoutManager staggeredGridLayoutManager = this.f3636f;
+        ArrayList arrayList = this.f3631a;
+        View view = null;
+        if (i4 != -1) {
+            int size = arrayList.size() - 1;
+            while (size >= 0) {
+                View view2 = (View) arrayList.get(size);
+                if ((staggeredGridLayoutManager.f3746w && AbstractC0238q0.L(view2) >= i) || ((!staggeredGridLayoutManager.f3746w && AbstractC0238q0.L(view2) <= i) || !view2.hasFocusable())) {
+                    break;
+                }
+                size--;
+                view = view2;
+            }
+            return view;
+        }
+        int size2 = arrayList.size();
+        int i5 = 0;
+        while (i5 < size2) {
+            View view3 = (View) arrayList.get(i5);
+            if ((staggeredGridLayoutManager.f3746w && AbstractC0238q0.L(view3) <= i) || ((!staggeredGridLayoutManager.f3746w && AbstractC0238q0.L(view3) >= i) || !view3.hasFocusable())) {
+                break;
+            }
+            i5++;
+            view = view3;
+        }
+        return view;
+    }
+
+    public final int h(int i) {
+        int i4 = this.f3632b;
+        if (i4 != Integer.MIN_VALUE) {
+            return i4;
+        }
+        if (this.f3631a.size() == 0) {
+            return i;
+        }
+        View view = (View) this.f3631a.get(0);
+        N0 n02 = (N0) view.getLayoutParams();
+        this.f3632b = this.f3636f.f3741r.e(view);
+        n02.getClass();
+        return this.f3632b;
+    }
+}