iOS + RTL (Arabic) causes app layout shrinking when using react-native-prevent-screenshot-ios-android — layout reduces on each navigation

Question

I’m using React Native and the package react-native-prevent-screenshot-ios-android to block screenshots in my app.

It works fine in LTR languages (English, etc.), but when the device language is Arabic (RTL), a very strange UI bug happens:

❗ Problem

Whenever I call:

enableSecureView();

on screen focus, and:

disableSecureView();

on blur, the entire iOS app layout shrinks from the bottom. Each time I navigate into/out of the screen, the UI becomes smaller and smaller.

This does NOT happen in LTR mode — only when RTL layout is active.

Example behavior:

• Enter screen → enableSecureView() → layout slightly shrinks
• Leave screen → disableSecureView()
• Enter again → shrinks more
• Repeat → UI becomes unusable

❗ Additional Issue

• If I try to patch the iOS native file to fix the shrinking:

  • The layout bug is fixed.
  • BUT screenshot blocking no longer works on iOS (because the library uses a specific secureTextEntry + layer re-parenting hack).

• Currently, I cannot achieve both:

  • RTL layout working
  • iOS screenshot blocking

• Amadan: It might be better to report an Issue at github.com/Praveencena88/… rather than to ask here.
• Ahmet Hoşca: Thanks. I'll report it there, though the repo seems unmaintained. It's worth noting that I've tested several alternative libraries, and they all share this exact same cumulative shrinking bug in RTL. It seems to be a fundamental issue with the native secureTextEntry hack on iOS rather than just this specific library.