convert the app source for Android to iPhone and iPad.

I am looking for a developer to convert the source code of my Android app to be compatible with iPhone and iPad. Here are the details of the project:

Source Code:
- I have the source code for the Android app.

Programming Language:
- The Android app is developed using Java.

Here are current issue of Android App.
You also fix it
1. Crash occurs irregularly when running the current Android version.
Perhaps this is an issue with invalidate()/onDraw().
==> You must fix it...
2. When uninstalling an app in the Android version, a signal must be sent to the server.
=> Is it possible?
3. I am using the [Always on top] feature in the Android version.
Is it possible to prevent users from turning it off ?
4. Is it possible to prevent users from force quitting the app in the Android version?
=> Is it possible?
5. Is it possible to prevent users from uninstalling apps on the Android version ?

Timeline:
- I need the iOS version of the app within a month.

Skills and Experience:
- Experience in converting Android apps to iOS using Java.
- Proficiency in iOS app development.
- Knowledge of Swift programming language.
- Attention to detail and ability to ensure the app functions properly on both iPhone and iPad devices.

If you have the necessary skills and experience, please submit your proposal along with examples of your previous work.