material-components
MDC-102 ProductGridFragment.java imports wrong Toolbar library
The instructions clearly state "When importing the Toolbar class, make sure you import androidx.appcompat.widget.Toolbar and not android.widget.Toolbar"
Yet the code shows: import android.widget.Toolbar;
The finished-codelab code is correct.
Note: I'm a beginner to java and android dev as well as github, so let me know if said anything wrong or posted in the wrong format.
I was getting an error "error: incompatible types: android.widget.Toolbar cannot be converted to androidx.appcompat.widget.Toolbar" while building the app.
The code snippet where the error was shown is here: private void setUpToolbar(View view) { Toolbar toolbar = view.findViewById(R.id.app_bar); AppCompatActivity activity = (AppCompatActivity) getActivity(); if (activity != null) { activity.setSupportActionBar(toolbar); } }
"Toolbar toolbar = view.findViewById(R.id.app_bar);" seems to call the android.widget.Toolbar library which cannot be type casted to the androidx.appcompat.widget.Toolbar library in the "activity.setSupportActionBar(toolbar);" line.
I fixed it by initiating the toolbar as "androidx.appcompat.widget.Toolbar toolbar = view.findViewById(R.id.app_bar)" but this seems to cause the toolbar to turn white instead of blue as shown in the picture. Is this a possible fix and what can be done about the color?
It is now November 7, 2020 --- why hasn't this mistake been corrected.
Should I even trust the rest of these tutorials .
We should not have to be learning by finding mistakes in "tutorials" meant to teach us capabilities.
Very disappointing!
