I\'ve read several thing about it but I can\'t find what I need.
I want to keep the grey arrow but I want to remove the horizontal bar from the default style and have a whit
Always while working with spinners, buttons and EditTexts and also needing to insert a drawable, I often wrap the element (spinner, EditText etc.) in a FrameLayout. Check an example:
Another important tip is that FrameLayout allows you to set OnClick functions on the drawable, for instance.