使用 getFont 时出现 android.content.res.Resources$NotFoundException

Question

I developed an android application that is based on Firebase.

One of the buttons In the application is used to delete the account.

Once the account is deleted, I return the user to the main activity by using this:

AuthUI.getInstance()
        .signOut( context )
        .addOnCompleteListener( task -> {
            Intent intent = new Intent( context, MainActivity.class );
            intent.setFlags( Intent.FLAG_ACTIVITY_CLEAR_TOP |
                    Intent.FLAG_ACTIVITY_CLEAR_TASK |
                    Intent.FLAG_ACTIVITY_NEW_TASK );
            context.startActivity( intent );
        } );

Then, when the main activity is created, there are few methods in it. One of the methods called activateGPS is used when users first open the app to tell them that they should turn on the GPS.

private void activateGPS() {
    new GpsUtils( this ).turnGPSOn( isGPSEnable -> isGPS = isGPSEnable );

    if (!isGPS) {
        PopUps popUps = new PopUps();
        popUps.popSnack( getApplicationContext(), getWindow().getDecorView().findViewById( android.R.id.content ), getString( R.string.Location_Service ) );
    }
}

What causes this problem?

When I run it on the emulator everything seems to work fine.

Thank you If the GPS turned off, a snackbar is shown.

Problem is, that I see in my logs is that when users deleted their accounts, the following error happened:

Caused by android.content.res.Resources$NotFoundException
Font resource ID #0x7f090000 could not be retrieved.

androidx.core.content.res.ResourcesCompat.loadFont (ResourcesCompat.java:4)
androidx.core.content.res.ResourcesCompat.getFont (ResourcesCompat.java:19)
com.xx.yy.PopUps.popSnack (PopUps.java:4)
com.xx.yy.MainActivity.activateGPS (MainActivity.java:8)

PopUps.popSnack is built as follows and I use it from an interface:

public void popSnack(Context context, View view, String message) {
    Snackbar snackbar = Snackbar.make( view.findViewById( android.R.id.content ), message, Snackbar.LENGTH_SHORT );
    View sbView = snackbar.getView();
    sbView.setBackgroundColor( context.getResources().getColor( R.color.colorPrimaryDark ) );
    sbView.setElevation( 0f );

    TextView tv = (snackbar.getView()).findViewById( com.google.android.material.R.id.snackbar_text );
    Typeface font = ResourcesCompat.getFont( context, R.font.assistant );
    tv.setTypeface( font );
    tv.setTextSize( 12 );

    if (view.findViewById( R.id.et_Message ) != null) {
        snackbar.setAnchorView( R.id.et_Message );
    } else if (view.findViewById( R.id.bottom_navigation ) != null) {
        snackbar.setAnchorView( R.id.bottom_navigation );
    }
    snackbar.setDuration( 5000 );
    snackbar.show();
}

Answer 1

According to the error you have mentioned, I think the resource you are trying to access isn't available. Please make sure that the file is in the font folder.

   ResourcesCompat.getFont(context,R.font.assistant);

The above code should work fine.