view.layer.shadowOffset = CGSizeMake(0,0);
view.layer.shadowOffset = CGSizeMake(5,0);
view.layer.shadowOffset = CGSizeMake(-5,0);
view.layer.shadowOffset = CGSizeMake(0,5);
view.layer.shadowOffset = CGSizeMake(0,-5);
view.layer.shadowOffset = CGSizeMake(5,5);
view.layer.shadowOffset = CGSizeMake(-5,-5);
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