Unable to get shift mode field

[fctaddia]

I run the method to disable shiftMode and in the logs it shows me this:
D/TADDA: class Zx
E/BottomNavigationHelper: Unable to get shift mode field
java.lang.NoSuchFieldException: No field mShiftingMode in class LZx; (declaration of 'Zx' appears in /data/app/it.kenble.freddy-LA1SlQO9Eo5FCUafCf-YOw==/base.apk)
at java.lang.Class.getDeclaredField(Native Method)
at JG.b(:12)
at it.kenble.freddy.ui.MainActivity.onCreate(:39)
at android.app.Activity.performCreate(Activity.java:7458)
at android.app.Activity.performCreate(Activity.java:7448)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1286)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3409)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3614)
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:86)
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2199)
at android.os.Handler.dispatchMessage(Handler.java:112)
at android.os.Looper.loop(Looper.java:216)
at android.app.ActivityThread.main(ActivityThread.java:7625)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:524)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:987)

• TADDA is a custom name of my log

• at it.kenble.freddy.ui.MainActivity.onCreate(:39) --> if (Build.VERSION.SDK_INT >= 27) binding.bottomNavigation.disableShiftMode()

• I also added this in the proguard-roles file:
  -keepclassmembers class android.support.design.internal.BottomNavigationMenuView {
  boolean mShiftingMode;
  }

• I'm using this as a global theme: Theme.MaterialComponents.Light.NoActionBar, I don't know if it affects anything.

Let me know if it can be fixed. Thanks

[yasszu]

Thank you for your comment.
This method is available at support library 27 or lower (android.support.design.internal.BottomNavigationMenuView).
You are using a new library (com.google.android.material.bottomnavigation.BottomNavigationMenuView) in your app.
My code is incorrect at the import declaration.

[fctaddia]

Ok thanks for your reply. Will there be an update to support the new library?

[yasszu]

If you want to use a Material Components, you have to migrate support library to AndroidX and add com.google.android.material:material:1.2.1 to the dependencies.
Check out this docs:
https://github.com/material-components/material-components-android/blob/master/docs/getting-started.md