This project demonstrates an issue with Android Studio showing a warning about a databinding feature that works

Steps to reproduce:

• Open the project in Android Studio

• Open the file activity_main.xml

• Expected behavior: No error appears

• ⚠️ Actual behavior: An error appears about the android:backgroundTint attribute:

  Cannot find a setter for that accepts parameter type 'androidx.lifecycle.MutableLiveData<java.lang.Integer>'

  

• Install the app to a device

• Expected behavior: the button appears with the custom shape, tinted red

• Actual behavior: it works as expected:

  

Note: In the generated databinding file, ./app/build/generated/source/kapt/debug/com/example/backgroundtintissueapp/databinding/ActivityMainBindingImpl.java, the code supports converting the LiveData's Int to a ColorStateList:

    this.mboundView1.setBackgroundTintList(androidx.databinding.adapters.Converters.convertColorToColorStateList(viewModelBackgroundColorLiveDataGetValue));