java - How to open xml by clicking button -

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so have made new layout in res/layout called about, want is, when clicking button directed layout.

simplified. when press button on "activity_main.xml" opens "about.xml". how can achieve this??? don't have access resource heavy websites, stackoverflow last option. appreciated if know how.

if don't want start new activity, invoke:

 setcontentview(r.layout.about);

when button clicked. set current activity new layout located @ res/layout/about.xml. work if change activity presentation without changing functionality.

if want launch activity, should create new activity class implements functionality of new activity , keeps about.xml layout. on button click, start new activity.


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