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Sinan the Thinker
7,980 PointsiOS 7 problems blog reader app, webview wont open
Hi guys,
I build and completed the blog reader tutorials using iOS 7. I ve implemented like in tutorials, but what I now see is in the app, just 10 thumbnails , title, name, date.
when i click on one blog, the webview wont open.
and i cant scroll more down to download more more blogs....
3 Answers
Amit Bijlani
Treehouse Guest TeacherAt what stage are you? In the starting over video you basically start over from scratch so if you keep going you will see how to transition from the table view controller to the detail view controller.
Mark Rabo
6,260 PointsWe may be having the same issue. From the Navigation Controller lesson onwards, my project compiles and runs but selecting a cell causes it to crash. It sends the following message which points to setBlogPostURL but I've checked it over and it's what's in the videos.
What could it be?
2014-08-29 15:51:21.377 BlogReaderFromScratch[10454:60b] Preparing for segue: showBlogPost
2014-08-29 15:51:21.378 BlogReaderFromScratch[10454:60b] -[UINavigationController setBlogPostURL:]: unrecognized selector sent to instance 0x10c114f90
2014-08-29 15:51:21.389 BlogReaderFromScratch[10454:60b] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[UINavigationController setBlogPostURL:]: unrecognized selector sent to instance 0x10c114f90'
Amit Bijlani
Treehouse Guest TeacherThe problem has nothing to do with iOS 7. When you are using a navigation controller the destinationController in your segue is not detail view controller. From the error you posted above it seems like you are trying to set the blogPostURL on the wrong view controller.
Mark Rabo
6,260 PointsMakes sense, this wouldn't be different in iOS7.
I did an NSLog on segue.destinationViewController and got UINavigationController: 0x109547700 which I see is also shown in the error message.
Is that the right destinationViewController? If not, what should it be and how do I specify a different one?
This is the code I'm using for the segue (identical to what's in the lesson)... stumped.
if ( [segue.identifier isEqualToString:@"showBlogPost"] ) {
NSIndexPath *indexPath = [self.tableView indexPathForSelectedRow];
MCRBlogPost *blogPost = [self.blogPosts objectAtIndex:indexPath.row];
[segue.destinationViewController setBlogPostURL:blogPost.url];
}
Amit Bijlani
Treehouse Guest TeacherThe problem does not seem with your code but how you have laid out your storyboard. It seems that you might have another navigation controller between your table view controller and web view controller.
You storyboard should like this:
Mark Rabo
6,260 PointsThe order is the same but the symbols between look different.
The Inspector between the Navigation Controller and Table View Controller looks like this:
And the segue Inspector like this:
