Some feature not working on android in release mode

[jkyeo]

When I debug the flutter app, everything is ok. But when I run in release mode flutter run --release -d xxxxxx, below feature is not work for me:

FlutterStatusbarManager.setStyle(StatusBarStyle.DARK_CONTENT);
FlutterStatusbarManager.setNavigationBarStyle(NavigationBarStyle.DARK);

Call the manager just in app build:

---

env:

• device: Google Pixel 2 XL running Android 9
• flutter doctor ouput:

  Doctor summary (to see all details, run flutter doctor -v):
  [✓] Flutter (Channel stable, v1.2.1, on Mac OS X 10.14.3 18D109, locale zh-Hans-CN)
  [✓] Android toolchain - develop for Android devices (Android SDK version 28.0.3)
  [✓] iOS toolchain - develop for iOS devices (Xcode 10.1)
  [✓] Android Studio (version 3.3)
  [✓] VS Code (version 1.32.3)
  [!] Proxy Configuration
  ! NO_PROXY is not set
  [!] Connected device
  ! No devices available

[jkyeo]

Well, when I wrap these calling in a async function, it worked again in both debug and release mode.

FlutterStatusbarManager functions should been called synchronously