When your coordinator layout not displayed anyhing in Layout Preview, or in layout's error show The following classes not be found :
- androidx.coordinatorlayout.widget.CoordinatorLayout.
you can add
implementation 'androidx.legacy:legacy-support-v4:1.0.0'
dont'forget to sync grandle and then sync with file system
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feel free ^_^
Link Download Example
https://github.com/lombarobot-id/andr...
Thank you