Ios 按下故事板中的按钮时发出信号Sigabrat

嗨，当我在一个页面中按下按钮连接到另一个视图时，我有一个错误

你能帮帮我吗 提前谢谢

这是我的代码

-(void)buttonPressed:(UIButton *)button
{
NSLog(@"button %u -- frame: %@", button.tag, NSStringFromCGRect(button.frame));
[self performSegueWithIdentifier:@"WeekView" sender:self];

}

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
if ([segue.identifier isEqualToString: @"WeekView"]){

    [segue.destinationViewController setTitle:@"WeekView"];
    }}

with debugging = Signal Sigabrat start from here

 [self performSegueWithIdentifier:@"WeekView" sender:self];

此行中出现此错误

-(void)buttonPressed:(UIButton *)button
{
NSLog(@"button %u -- frame: %@", button.tag, NSStringFromCGRect(button.frame));
[self performSegueWithIdentifier:@"WeekView" sender:self];

}

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
if ([segue.identifier isEqualToString: @"WeekView"]){

    [segue.destinationViewController setTitle:@"WeekView"];
    }}

with debugging = Signal Sigabrat start from here

 [self performSegueWithIdentifier:@"WeekView" sender:self];

---

我还可以在Segue中识别WeekView，并使用SHIP+command+K清除但仍有错误

在更改属性之前，您必须初始化destinationviewcontroller：

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
if ([segue.identifier isEqualToString: @"WeekView"]){

SecondViewController*second=segue.destinationViewController;   //You´re missing this line.

second.title=@"WeekView";    // now you can do stuff on your destinationViewController



    }}

---

我希望它能解决问题。

您确实在故事板中创建了一个片段吗？