Ios 通过选择器发送多个参数？

我想使用选择器进入控制器并传递两个值，发送方和一个数字

问题是我遇到了车祸：

***由于未捕获的异常“NSInvalidArgumentException”而终止应用程序，原因：'-[CDCFaderController changeView:]：未识别的选择器已发送到实例0x109db6f40'

代码对我来说很有意义，所以不知道为什么，有人能帮忙吗

[self.viewController performSelector:@selector(changeView:) withObject:self withObject:[NSNumber numberWithInteger: channel.channelNumber]];

接收人：

- (void)changeView:(UIButton *)sender chanToPush:(NSNumber*)channel

---

选择器错误<代码>@selector（changeView:）应该是这个

@selector（changeView:chanToPush:）

试试这个

[self.viewController performSelector:@selector(changeView:chanToPush:) withObject:self withObject:[NSNumber numberWithInteger: channel.channelNumber]];

---

选择器错误<代码>@selector（changeView:）应该是这个

@selector（changeView:chanToPush:）

试试这个

[self.viewController performSelector:@selector(changeView:chanToPush:) withObject:self withObject:[NSNumber numberWithInteger: channel.channelNumber]];

---

按此使用

[self performSelector:@selector(changeView:chanToPush:) withObject:self withObject:[NSNumber numberWithInteger: channel.channelNumber]];

- (void)changeView:(UIButton *)sender chanToPush:(NSNumber*)channel
{
    NSLog(@"channel is --%@",channel);
}

或

[self performSelector:@selector(changeView:) withObject:[NSNumber numberWithInteger: channel.channelNumber]];

- (void) changeView:(NSNumber *)num
{ //
}

---

按此使用

[self performSelector:@selector(changeView:chanToPush:) withObject:self withObject:[NSNumber numberWithInteger: channel.channelNumber]];

- (void)changeView:(UIButton *)sender chanToPush:(NSNumber*)channel
{
    NSLog(@"channel is --%@",channel);
}

或

[self performSelector:@selector(changeView:) withObject:[NSNumber numberWithInteger: channel.channelNumber]];

- (void) changeView:(NSNumber *)num
{ //
}

---

感谢这项工作，我没有意识到我必须将参数添加到func名称中，因为发送方尚未包含在Objective-C中。函数名称作为第一个参数的外部名称（如果有）起双重作用。感谢这项工作，我没有意识到，当发送方尚未包含在Objective-C中时，我必须将参数添加到func名称中。函数名称作为第一个参数的外部名称（如果有）起双重作用