Android SDK equivlent for viewWillAppear (iOS)?

Question

Situation

I have a fairly simple app with 2 "layouts" using SharedPreferences.

• Main.xml
• Settings.xml

Main has a textView that uses getString from SharedPreferences. Also a button to open Settings.

Settings has a spinner and a button to save to SharedPreferences.

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The textView gets updated when the App loads as I am calling setText() inside onCreate(Bundle savedInstanceState)

Problem

When I open Settings and update the SharedPreferences, I use the Back button to get back to Main.

Since I am calling setText() inside onCreate() the textView does not update again until I exit the app and open the app again to main.

What method do I need to use to update the textView after coming back from Settings?

My request is similar to the viewWillAppear() for iOS.