没有已知课程 - iOS

Question

您能否看看我的代码并告诉我为什么我做错了？

我得到一个错误"No known class for selector method "imageWithImage: (UIImage)image...."

- (void)myMethod { 

    UIImage *iconImage=[UIImage imageNamed:@"male_small_0.png"]; 
    // I am having problem in the following line 
    UIImage *iconImage2=[UIImage imageWithImage:iconImage scaledToSize:CGSizeMake(73.0, 73.0)]; 
} 

-(UIImage*)imageWithImage:(UIImage*)image scaledToSize:(CGSize)newSize 
{ 
    UIGraphicsBeginImageContextWithOptions(newSize, NO, 0.0); 
    [image drawInRect:CGRectMake(0, 0, newSize.width, newSize.height)]; 
    UIImage *newImage =UIGraphicsGetImageFromCurrentImageContext(); 
    UIGraphicsEndImageContext(); 
    return newImage; 

} 

Answer 1

应该[self imageWithImage:...]不[UIImage imageWithImage...]。后者意味着该方法是UIImage的类方法，但它似乎是包含myMethod的类的实例方法。