What's the point of having a default value in sharedPref.getString?

Question

I\'m accessing my Android apps SharedPreferences via

private val sharedPref = PreferenceManager.getDefaultSharedPreferences(context)`
         


        

Answer 1

The fact is simple, just imagine you haven't saved any value regarding to that key(for your case 'MyKey') and tried to get the value for that key(for your case 'MyKey'). What will SharedPreference return ? It will simply return the default value.

You will see that, you must assign null or any other string to default for String type, 0 or any other int value to default for integer type and true or false default value for bolean type. I hope you got the answer.