ios 开发过程中在不通过import 调用其他类的方法
//获取类名
Class controller = NSClassFromString(@"controller");
//不允许为空
if (controller) {
//是否实现了该方法
if ([[controller alloc] respondsToSelector:@selector(method)]) {
id wbc = [[controller alloc] performSelector:@selector(method)];
//添加到当前的window
[[[[UIApplication sharedApplication] keyWindow] rootViewController] presentViewController:wbc animated:YES completion:^{
}];
}
}