CurrentItemViewAttribute.java

package gueei.binding.v30.viewAttributes.adapterView.viewPager;

import gueei.binding.Binder;
import gueei.binding.ViewAttribute;
import android.support.v4.view.ViewPager;
import android.support.v4.view.ViewPager.OnPageChangeListener;

public class CurrentItemViewAttribute extends ViewAttribute<ViewPager, Integer> implements OnPageChangeListener {
		
		public  CurrentItemViewAttribute 
			(ViewPager view) {
			super(Integer.class,view, "currentItem");
			
			Binder.getMulticastListenerForView(getView(), OnPageChangeListenerMulticast.class)
				.register(this);
		}
		
		@Override
		protected void doSetAttributeValue(Object newValue) {
			if(getView()==null) return;
			if (newValue instanceof Integer){
				getView().setCurrentItem((Integer)newValue);
				return;
			}
		}

		@Override
		public Integer get() {
			if(getView()==null) return null;
			return getView().getCurrentItem();
		}

		public void onPageScrollStateChanged(int arg0) {
        }

		public void onPageScrolled(int arg0, float arg1, int arg2) {
        }

		public void onPageSelected(int arg0) {
			this.notifyChanged(this);
		}
}