热更新--动态加载framework

  NSString *documentDirectory = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];
        NSString *bundlePath = [NSString stringWithFormat:@"%@/%@",documentDirectory,@"JFTestFramework.framework"];
        NSLog(@"2-------%@",bundlePath);
        if (![[NSFileManager defaultManager] fileExistsAtPath:bundlePath]) {
            NSLog(@"file not exist");
            return;
        }
        NSBundle *bundle = [NSBundle bundleWithPath:bundlePath];
        
        if (!bundle || ![bundle load]) {
            NSLog(@"bundle load error");
        }
        Class loadClass= [bundle classNamed:@"JFDylib"];
        
        if (!loadClass) {
            NSLog(@"get bundle class fail");
            return;
        }
        
        NSObject *bundleObj = [loadClass new];
        
        [bundleObj performSelector:@selector(showViewAfterVC: inBundle:) withObject:self withObject:bundle];