Question

how to retrieve the selected string in another class

toast and show if there is a choice the same string

declaration is included in the button script set.OnCLick …

usig if else

if (
 getString(R.id.spin1, equals("Book") == 
 getString(R.id.spin2, equals("Book")){
     Toast.makeText(getBaseContext(), "error", Toast.LENGTH_SHORT).show();
     `enter code here`
}

spin1 is spinner from class A and spin2 is Spinner from class B, but this but the script is not the way?? please help me….???

Answer 1

You can use shared preferences for storing and retrieving values :

simple demo to store value is

SharedPreferences sharedPreferences = getPreferences(MODE_PRIVATE);
    SharedPreferences.Editor editor = sharedPreferences.edit();
    editor.putString(key, value);
    editor.commit();

for more information check this link:

http://developer.android.com/reference/android/content/SharedPreferences.html