package com.marshalchen.common.uimodule.slider.Transformers;
import android.view.View;
import com.nineoldandroids.view.ViewHelper;
/**
* Created by realandylawton on 11/22/13.
*/
public class FadeTransformer extends BaseTransformer {
@Override
protected void onTransform(View view, float position) {
// Page is not an immediate sibling, just make transparent
if(position < -1 || position > 1) {
ViewHelper.setAlpha(view,0.6f);
}
// Page is sibling to left or right
else if (position <= 0 || position <= 1) {
// Calculate alpha. Position is decimal in [-1,0] or [0,1]
float alpha = (position <= 0) ? position + 1 : 1 - position;
ViewHelper.setAlpha(view,alpha);
}
// Page is active, make fully visible
else if (position == 0) {
ViewHelper.setAlpha(view,1);
}
}
}