Question

SimpleCursorAdapter is an indirect subclass of CursorAdapter as stated in the Android documentation. But

CursorAdapter cursorAdapter = new SimpleCursorAdapter(bla, bla, bla);

yields error from the compiler:

Type mismatch: cannot convert from SimpleCursorAdapter to CursorAdapter

Yet this has no errors:

abstract class  A {
}

class B extends A {
}

class C extends B {
}

public class Main {

    /**
     * @param args
     */
    public static void main(String[] args) {
        A c = new C();
    }
}

Is the documentation simply wrong, or am I missing something?

Thanks for your time.

Answer 1

My guess is that you’ve got another type called SimpleCursorAdapter or CursorAdapter somewhere – check your import statements. You should be importing android.widget.SimpleCursorAdapter and android.widget.CursorAdapter.