NSString to class instance variable

Question

I am looking for a way to convert from NSString to a class instance variable. For sample code below, say filter is "colorFilter". I want filternameclassinstancegohere to be replaced with colorFilter.

- (void)filterSelected:(NSString *)filter
{
    self.filternameclassinstancegohere = ….;
}

Answer 1

While there were good suggested solutions given for this question, I discovered what I needed is the NSClassFromString method. Here is a final implementation:

- (void)filterSelected:(NSString *)filter
{
    //self.filternameclassinstancegohere = ….;
    self.myViewController = [[NSClassFromString(filter) alloc] initWithNibName:filter bundle:nil];

}

Answer 2

Consider using one NSMutableDictionary instance variable with string keys rather than 40 instance variables.