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Android Build an Interactive Story App (Retired) The Model-View-Controller Pattern Creating the Story

fadhil suhendi
fadhil suhendi
7,680 Points
Posted by fadhil suhendi
fadhil suhendi
7,680 Points

About "mPages[0].setImageId(R.drawable.page0)"

So what does the "R.drawable.page()" return ? cause I know that the method setImageId that we call from Page.java has parameter int, but what does the "R.drawable.page()" return ? I'm a little bit confused here..

thank you!

1 Answer

Ratul Sarna
PLUS
Ratul Sarna
Courses Plus Student 11,618 Points
Ratul Sarna
Ratul Sarna
Courses Plus Student 11,618 Points

"R.drawable.page0" is not a method, so it would not return anything. It refers to a static field that exists inside an inner class named "drawable" which itself resides in the R class. This R class is an auto-generated class that creates static fields from the xml layout elements that one defines. It names the fields according to the id attribute one specifies for the xml elements.

Hope that clears it up a bit.