Dynamic element Id to setId(int) - Android

Question

I saw the syntax definition of setId(int) and findViewByID(int).

But how we use findViewById(R.id.row1)

I tried using

Answer 1

You can define your Ids as resources and then use setId() of the view to set it.

Answer 2

You can use setId(int) only for objects extending View class.

Answer 3

It's not recommended to set your object id yourself , findViewById make access to your R class that contains pointers to your XML items id.

when you define an id in your Xml Layout file like

android:id="@+id/txtyourId"

in compile time compiler create a reference to your XML Item layout in R class that you can access it from your java code by findViewById

View YourItem = (View)this.findViewById(R.id.txtyourId);