Set shadow for UIView on 4 side (top,right,bottom and left)

UIView *rateVW=[[UIView alloc] initWithFrame:CGRectMake(+25, [[UIScreen mainScreen] bounds].size.height/4-30, [[UIScreen mainScreen] bounds].size.width-50,  [[UIScreen mainScreen] bounds].size.height/2)];

    rateVW.layer.cornerRadius=5;

    rateVW.backgroundColor=[UIColor whiteColor];

    

    rateVW.layer.shadowColor = [UIColor blackColor].CGColor;

    rateVW.layer.shadowOpacity = 0.7;

    rateVW.layer.shadowOffset = CGSizeZero;

    rateVW.layer.shadowRadius = 4;

    rateVW.layer.shadowPath = [UIBezierPath bezierPathWithRect:rateVW.bounds].CGPath;

    [backView2 addSubview:rateVW];

Enjoy Coding...!