模糊textview的背景 - IllegalArgumentException的宽度和高度必须> 0

I have 2 layout files, one for the listview and one for customizing the row layout inside the listview. Then I have the Activity class of the listview, a class with Utils that blurs the background of a view and the custom ListAdapter class. I am trying to blur a TextView name of the row with the method blur() from Utils.java inside the listviewActivity, but I get the following exception:I have 2 layout files, one for the listview and