how can i use a variable as index in getResourceId(int index, int defValue);

Issue

I use below code to define buttons background:

TypedArray bottombuttons = res.obtainTypedArray(R.array.bottombuttons );

button0.setBackgroundResource(bottombuttons .getResourceId(index, 1));

where index is a variable comes from shared activity

int index = themePref.getInt("index", 1);

Solution

The answer is i had to make changes in onResume() not in onCreate()

Answered By - Ahmed Mansy