Using findViewById more effeciently

Question

I am currently using the following code and wondering if there is a more effecient way of doing this via a function?

showDisplay = (LinearLayout)findViewById(R.id.display1);
if (isA)
{ 
{ showDisplay.setVisibility(0);}
else
{ showDisplay.setVisibility(8); }


showDisplay = (LinearLayout)findViewById(R.id.display2);
if (isB)
{ showDisplay.setVisibility(0);}
else
{ showDisplay.setVisibility(8); }

showDisplay = (LinearLayout)findViewById(R.id.display3);
if (isC)
{ showDisplay.setVisibility(0);}
else
{ showDisplay.setVisibility(8); }

Answer 1

I usually have a bunch of helpers for setting common properties like visibility, text, etc. It makes the code look prettier.

setChildVisibility(R.id.display1, isA);
setChildVisibility(R.id.display2, isB);
setChildVisibility(R.id.display3, isC);

With the helper being :

protected void setChildVisibility(int id, boolean visible) {
    View view = findViewById(id);
    if (view != null) {
        view.setVisibility(visible?View.VISIBLE:View.GONE);
    }
}