ios14导航栏背景图渐变 出现色差

iphone11在ios14系统下导航栏高度变为92 导致导航栏渐变颜色 航导航栏下面不贴合出现色差!
ios13时该高度还是88

Background nil color.png Class Name UIBarBackground.png

iphone12 在14的系统上是47 吐血 通配代码

- (UIImage *)compressOriginalImage:(UIImage *)image toSize:(CGSize)size{
    UIImage * resultImage = image;
    UIGraphicsBeginImageContext(size);
    [resultImage drawInRect:CGRectMake(0, 0, size.width, size.height)];
    image = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
    return image;
}


                UIImage *img = [self compressOriginalImage:[UIImage imageNamed:@"trader_nav_backView_Max_Blue_Normal"] toSize:CGSizeMake(kScreenWidth, [UIApplication sharedApplication].statusBarFrame.size.height + 44)];