如何使用popToViewController发送字符串值

Question

我正在使用navigationcontroller.我有(Root,A,B,C,D)课程.我想砂字符串测试值类d到类甲经由popToViewController.

请给我一些建议.

谢谢

Answer 1

UINavigationController维护所有推送控制器的列表,viewControllers根控制器始终驻留在0.

MyAController *myController = (MyAController *)[self.navigationController.viewControllers objectAtIndex:0];
myController.myText = @"My String" ;
[self.navigationController popToViewController:myController animated:YES];