Android Multiline Snackbar

One can override the predefined value used for that in values.xml of the app

<integer name="design_snackbar_text_max_lines">5</integer>

This value is used by Snackbar by default.

Just set the maxLines attribute of Snackbars Textview

View snackbarView = snackbar.getView();
TextView textView = (TextView) snackbarView.findViewById(android.support.design.R.id.snackbar_text);
textView.setMaxLines(5);  // show multiple line

If you're using the more recent "com.google.android.material:material:1.0.0"dependency, then you will use this: com.google.android.material.R.id.snackbar_text to access the Snackbar's TextView.

You can use even R.id.snackbar_text as well. it's work for me.