[Solved] Can the value of final static field change in android?

Question

When you do this sEditor.putString(PREF_EMAIL,email);, the first parameter is the key and not the value. So what happens is in your preference the value of email is saved for the KEY PREF_EMAIL.

Hence the key is never changing. Your shared preference are Key-ValuePair kind of collections. The value of String PREF_EMAIL is what you have defined in the line – public static final String PREF_EMAIL = "email"; i.e. email and will always remain the same.

The value of preference saved with the identifier key as PREF_EMAIL changes.

so your Shared Preference will be saved as –

email = "[email protected]" // this is just an example representation.

Accepted Answer

When you do this sEditor.putString(PREF_EMAIL,email);, the first parameter is the key and not the value. So what happens is in your preference the value of email is saved for the KEY PREF_EMAIL.

Hence the key is never changing. Your shared preference are Key-ValuePair kind of collections. The value of String PREF_EMAIL is what you have defined in the line – public static final String PREF_EMAIL = "email"; i.e. email and will always remain the same.

The value of preference saved with the identifier key as PREF_EMAIL changes.

so your Shared Preference will be saved as –

email = "[email protected]" // this is just an example representation.