import android.os.Bundle;
import android.preference.PreferenceActivity;
import android.support.annotation.LayoutRes;
+import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v7.app.ActionBar;
import android.support.v7.app.AppCompatDelegate;
getDelegate().setSupportActionBar(toolbar);
}
+ @NonNull
@Override
public MenuInflater getMenuInflater() {
return getDelegate().getMenuInflater();