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/constraintlayout/widget/g.java

@@ -0,0 +1,48 @@
+package androidx.constraintlayout.widget;
+
+import android.content.Context;
+import android.content.res.TypedArray;
+import android.content.res.XmlResourceParser;
+import android.util.Xml;
+import android.view.LayoutInflater;
+import android.view.ViewGroup;
+import java.util.ArrayList;
+
+/* loaded from: classes.dex */
+public final class g {
+
+    /* renamed from: a, reason: collision with root package name */
+    public final int f2624a;
+
+    /* renamed from: b, reason: collision with root package name */
+    public final ArrayList f2625b = new ArrayList();
+
+    /* renamed from: c, reason: collision with root package name */
+    public final int f2626c;
+
+    /* renamed from: d, reason: collision with root package name */
+    public final p f2627d;
+
+    public g(Context context, XmlResourceParser xmlResourceParser) {
+        this.f2626c = -1;
+        TypedArray obtainStyledAttributes = context.obtainStyledAttributes(Xml.asAttributeSet(xmlResourceParser), s.h);
+        int indexCount = obtainStyledAttributes.getIndexCount();
+        for (int i = 0; i < indexCount; i++) {
+            int index = obtainStyledAttributes.getIndex(i);
+            if (index == 0) {
+                this.f2624a = obtainStyledAttributes.getResourceId(index, this.f2624a);
+            } else if (index == 1) {
+                int resourceId = obtainStyledAttributes.getResourceId(index, this.f2626c);
+                this.f2626c = resourceId;
+                String resourceTypeName = context.getResources().getResourceTypeName(resourceId);
+                context.getResources().getResourceName(resourceId);
+                if ("layout".equals(resourceTypeName)) {
+                    p pVar = new p();
+                    this.f2627d = pVar;
+                    pVar.b((ConstraintLayout) LayoutInflater.from(context).inflate(resourceId, (ViewGroup) null));
+                }
+            }
+        }
+        obtainStyledAttributes.recycle();
+    }
+}