iPhone:“无法识别的选择器已发送到实例" [英] iPhone: "unrecognized selector sent to instance"

问题描述

根据SegmentSwitcher的状态，我尝试将两个不同的视图设置为一个子视图:

I try to set two different views into a subview, according to the state of a SegmentSwitcher:

if ([sender selectedSegmentIndex] == gameIndex) {
    if (self.gameView.view == nil) {
        GameView *gameV = [[UIViewController alloc] initWithNibName:@"GameView" bundle:nil];
        self.gameView = gameV;
        [gameV release];
    }
    [tableView.view removeFromSuperview];
    [subView insertSubview:gameView.view atIndex:0];
} else {
    if (self.tableView.view == nil) {
        TableView *tableV = [[UIViewController alloc] initWithNibName:@"TableView" bundle:nil];
        self.tableView = tableV;
        [tableV release];
    }
    [tableView.view removeFromSuperview];
    [subView insertSubview:tableView.view atIndex:0];
}

TableView扩展了TableViewController，但是当我尝试切换到tableview时，总是出现以下错误:

TableView extends TableViewController, but I always get the following error when I try to switch to the tableview:

2010-01-06 19:55:00.871手球[84675:40b] *-[UIViewController tableView:numberOfRowsInSection:]:无法识别的选择器已发送到实例0x3b18360 2010-01-06 19:55:00.873手球[84675:40b] * 由于未捕获的异常'NSInvalidArgumentException'终止了应用程序，原因:'***-[UIViewController tableView:numberOfRowsInSection:]:无法识别的选择器发送至实例0x3b18360' 2010-01-06 19:55:00.874手球[84675:40b]堆栈:(

2010-01-06 19:55:00.871 Handball[84675:40b] * -[UIViewController tableView:numberOfRowsInSection:]: unrecognized selector sent to instance 0x3b18360 2010-01-06 19:55:00.873 Handball[84675:40b] * Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[UIViewController tableView:numberOfRowsInSection:]: unrecognized selector sent to instance 0x3b18360' 2010-01-06 19:55:00.874 Handball[84675:40b] Stack: (

任何帮助都会非常感谢！

Any help would be REALLY, REALLY appreciated...

推荐答案

虽然声明tableV为TableView，但很可能使用简单的UIViewConrtoller对其进行了初始化，因为它出现在代码中.尝试将行更改为:

While tableV is declared to be a TableView, it's most likely initialized with a simple UIViewConrtoller, as it appears in your code. Try changing the line to:

TableView *tableV = [[TableView alloc] initWithNibName:@"TableView" bundle:nil];

TableView应该是UITableViewController的子类型.

顺便说一句，GameView也可能会发生同样的情况.

By the way, the same should probably happen with GameView as well.

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