Hook alternative checkDowngrade method on A15+

Author: aviraxp

app/src/main/java/toolkit/coderstory/CorePatchForV.java

@@ -1,8 +1,24 @@
 package toolkit.coderstory;
 
+import java.lang.reflect.InvocationTargetException;
+
+import de.robv.android.xposed.XposedBridge;
 import de.robv.android.xposed.XposedHelpers;
+import de.robv.android.xposed.callbacks.XC_LoadPackage;
 
 public class CorePatchForV extends CorePatchForU {
+    @Override
+    public void handleLoadPackage(XC_LoadPackage.LoadPackageParam loadPackageParam) throws InvocationTargetException, IllegalAccessException, InstantiationException {
+        super.handleLoadPackage(loadPackageParam);
+
+        var checkDowngradeAlt = XposedHelpers.findMethodExactIfExists("com.android.server.pm.PackageManagerServiceUtils",
+                loadPackageParam.classLoader, "checkDowngrade", "com.android.server.pm.PackageSetting",
+                "android.content.pm.PackageInfoLite");
+        if (checkDowngradeAlt != null) {
+            XposedBridge.hookMethod(checkDowngradeAlt, new ReturnConstant(prefs, "downgrade", null));
+        }
+    }
+
     @Override
     Class<?> getParsedPackage(ClassLoader classLoader) {
         return XposedHelpers.findClassIfExists("com.android.internal.pm.parsing.pkg.ParsedPackage", classLoader);