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Android Build a Simple Android App (2014) Basic Android Programming Empty Strings

VIEW THE PREVIOUS FACT

when we try to click the showMore button ,the next fact is viewed .But what if we want to view the previous fact again? How do we write a code for the back button?

Mark VonGyer
Mark VonGyer
21,239 Points

Before changing the string variable to a new string, set a new string variable to the existing string and then set the new string.

eg/

string 1 = "ants rock"

user clicks new fact

string 2 = string 1;

string 1 = "elephants rock"

Then make an additional button which will change the display string to string 2.