[优惠券弹框]

alert.m

 /// 根据接口是否显示优惠券弹框
 [self showCouponAlertView];
        
#pragma mark- 优惠弹框

- (void)showCouponAlertView {
    
    UIView *contentView = [[UIView alloc] initWithFrame:CGRectZero];
    contentView.backgroundColor = UIColorRed;
    
    QMUIModalPresentationViewController *modalViewController = [[QMUIModalPresentationViewController alloc] init];
    modalViewController.contentView = contentView;
    modalViewController.modal = NO;
    modalViewController.layoutBlock = ^(CGRect containerBounds, CGFloat keyboardHeight, CGRect contentViewDefaultFrame) {
        CGFloat width = 270;
        CGFloat height = 100;
        contentView.qmui_frameApplyTransform = CGRectMake((CGRectGetWidth(containerBounds)-width)/2, (CGRectGetHeight(containerBounds)-height)/2, width, height);
    };
    [modalViewController showWithAnimated:YES completion:nil];
}