Android Programmatically created Button Persistence

So in an app I'm messing around with I programmatically create some buttons. Then I setContentView(); to a different page. Then if I come back to the original page (on which I placed the programmatically created buttons), they no longer exist. I guess this makes sense as I am cal开发者_如何学Goling setContentView(R.layout.main); again which is just the original xml file with no data pointing to the buttons. So is there a way to have the buttons persist over such screen transitions? Thanks.

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Why not use separate activities for each page? You'll get back stack behavior and preservation of activity state automatically.

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Use

.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP)

in your Intent when you are starting the Activity which contains the Buttons.

I think this will solve your problem