prepareForSegue：sender：永远不会被调用

Question

I am following a tutorial for building a simple iOS application .

I am currently on the Displaying Information in the Detail Scene chapter.

At the end it says I should now be able to run the application. However, when I do run it and I click on a row in the master uitableview, it simply highlights blue but does not segue to the detail uitableview.

So I put an NSLog in the prepareForSegue:sender: method and it is never called.

Also, I do not remember telling Xcode (neither in the storyboard nor in any code) to segue when a row is pressed.

Did I miss a part of the tutorial or did the tutorial leave something out? Or did I just do a foolish mistake somewhere? Please help me figure out how to activate the segue.

Thanks in advance!

Answer 1

make sure these.

1) [self performSegueWithIdentifier:@"SegueName" sender:self];

do this in below method-

(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath

2) set delegate of first tabel view.

Hope it helps.

Answer 2

1 . Add segue from master table view to detail table view , just ctrl drag and select style as per your need

2 . set segue identifier

3 in did select use performSegueWithIdentifier to navigate

- (void)tableView:(UITableView *)tbView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
 {
 [self performSegueWithIdentifier:@"Navigate" sender:self];
 }

Answer 3

转到情节提要，将单元格与目标视图链接，仅链接Ctrl拖动，然后在弹出菜单中选择“推”，然后选择链接并设置您的标识符（使用教程记忆的标识符），该方法将在处调用。内部补全事件，将调用您的方法