import uk.co.senab.actionbarpulltorefresh.library.viewdelegates.ScrollYDelegate; //导入依赖的package包/类
static PullToRefreshAttacher.ViewDelegate getBuiltInViewDelegate(final View view) {
    final Set<Map.Entry<Class, Class>> entries = BUILT_IN_DELEGATES.entrySet();
    for (final Map.Entry<Class, Class> entry : entries) {
        if (entry.getKey().isInstance(view)) {
            return InstanceCreationUtils.newInstance(view.getContext(),
                    entry.getValue(), VIEW_DELEGATE_CONSTRUCTOR_SIGNATURE, null);
        }
    }

    // Default is the ScrollYDelegate
    return InstanceCreationUtils.newInstance(view.getContext(),
            ScrollYDelegate.class, VIEW_DELEGATE_CONSTRUCTOR_SIGNATURE, null);
}
 

import uk.co.senab.actionbarpulltorefresh.library.viewdelegates.ScrollYDelegate; //导入依赖的package包/类
static ViewDelegate getBuiltInViewDelegate(final View view) {
    final Set<Map.Entry<Class, Class>> entries = BUILT_IN_DELEGATES.entrySet();
    for (final Map.Entry<Class, Class> entry : entries) {
        if (entry.getKey().isInstance(view)) {
            return InstanceCreationUtils.newInstance(view.getContext(),
                    entry.getValue(), VIEW_DELEGATE_CONSTRUCTOR_SIGNATURE);
        }
    }
    //return null;
    // Default is the ScrollYDelegate

    return InstanceCreationUtils.newInstance(view.getContext(),
               ScrollYDelegate.class, VIEW_DELEGATE_CONSTRUCTOR_SIGNATURE);
}