iOS 消息处理之performSelector

3个方法
- (id)performSelector:(SEL)aSelector;
- (id)performSelector:(SEL)aSelector withObject:(id)object;
- (id)performSelector:(SEL)aSelector withObject:(id)object1 withObject:(id)object2;

事例：
一：在framework的某个类中，初始化主应用的某个类，并传值给主应用

Class PublicAPIClass = NSClassFromString(@”APIObject”);
if (!PublicAPIClass) {
NSLog(@”Unable to load class”);
// return nil;
}
NSObject *publicAPIObject = [PublicAPIClass new];//初始化
[publicAPIObject performSelector:@selector(SelectorFirstParameter:SecondParameter:) withObject:mDict withObject:self];

二：在主应用的APIObject中
- (void)SelectorFirstParameter:(NSDictionary )dictInfo SecondParameter:(UIViewController )currentView{

}