so I followed the tutorial at
http://icodeblog.com/2008/08/08/iphone-programming-tutorial-populating-uitableview-with-an-nsarray/
It compiles and run successfully but it only shows Fruits at the top and no items.
Same thing happened when I followed another tutorial. Does anyone know how to fix this or what the problem is?
brute force:
run the code in the debugger with breakpoints on the entry and exit of every function learn what it's doing and see where it's failing. (At least on all the functions that display data or build data to be displayed)
optionally (since the code you linked to is 2 years (and 2 OS versions) old):
pick the sample code from apple that does the same thing (sorry, I don't know which one off the top of my head)
Did you perhaps miss some code in the applicationDidFinishLaunching block in the example at the link provided?
Or perhaps didn't link the FruitViewController to the view?
So I dont think it has to do with the guide. It has to do with some settings maybe? Somehow the xcode is not connecting to the iPhone simulator?
Related
My old iPad (ios9.3) refuses to load any reveal.js slides. It only shows the "Fork me on Github" image on the top corner. I suppose it will be that ios 9.3 does not support some new features of html5+js+css (I am not a developer, my skills are quite limited, so please excuse me if I say something stupid).
I am very interested in using it on an iPad due to the chalkboard plugin.
Any of you know what can be causing the trouble? Could I disable any of these features/files and make it work?
Thank you.
aimar
During all this weekend I was trying to figure out a solution. Finally, I manage to debug iOS safari from my windows laptop following this procedure and found that an "Unexpected identifier" was impeding "chalkboard" plugin to load.
A variable was defined with "let" command that, as I learnt, was not recognized by safari 9. I changed 4 "let"s with 4 "var"s commands in "plugin.js" (chalkboard plugin) and now it works in my old iPad, even with reveal v4.
Now I have another issue with the menus (menu plugin) not showing properly, but I will try also to fix it.
I've searched around and can't find anything on this.
Using Swift 2 and Xcode Version 7.0.1 (7A1001). Every time I execute something in the debugger console, Xcode crashes.
The project is not very big, and has less than 10 third party frameworks.
I can't think of much more information that's relevant, but I'm sure there's more, so please do ask me if there's anything I should add to my question that would help.
I've of course cleaned build and derived data.
It's driving me insane. Thanks!
UPDATE 16/11/12
Submitted rdar://23559366.
How are you maintaining your third party frameworks? Via Carthage?
If so then this is probably your issue: https://github.com/Carthage/Carthage/issues/924
This is an issue if the location of the /Carthage/Build/iOS folder is in a different location to where it was produced (i.e if it was compiled on a different machine and the absolute file path has changed).
A temporary fix would be to run carthage build --no-use-binaries on your machine to rebuild the symbols using the current absolute file path working around the bug.
But if you wasn't using carthage then its probably not your issue so sorry
I had similar problem with Xcode whenever I hit breakpoint.
In case you see this screen right before your Xcode crashes - you are lucky and my fix might save you. All you need to do is open this window and in the Project Navigator, select any file that you want, so that instead of that white blank view you would get your code. After this you are most likely will be able to successfully stop your app at your breakpoint and perform the debug.
I am not sure why this happens, but I suspect that the reason is Debug View Hierarchy mode, which you might have triggered prior to setting you breakpoint and trying to stop at it. At least this is when it happens to me.
I have similar problem earlier.
If you try to print non-optional variable and unfortunately it holds nil value then it breaks/crash. so that make sure declare all possible variables as "Optional type".
So I downloaded the beta of XCode 7 and I've created some UI tests, but I can't find the functionality of how to take screenshots of my app/UI during the test.
Can someone please help?
UI Testing in Xcode automatically takes screenshots of your app after every step.
Simply go to one of the tests that has already ran (Report Navigator > choose a Test), then start expanding your tests. When you hover your mouse over the steps, you will see eye icons near each step that has a screenshot.
Here's an example... in this case, notice the eye icon at the end of the gray row. If I were to tap on it, I would see a screenshot of the app right when the button in my app was tapped (since the step is Tap the "Button" Button).
If you want to generate screenshots, you can also use snapshot, which describes how to trigger screenshots in UI tests: https://github.com/fastlane/fastlane/tree/master/snapshot#how-does-it-work
It basically rotates the device to .Unknown (Source), which triggers a snapshot without actually modifying your app's state.
Comparing the output with the generated plist file enables you to even properly name the screenshot
Facebook's ios-snapshot-test-case and KIF both run as Unit Tests, and therefore are in the same process as the app. As such, they can directly access views and use something like renderView: or snapshotViewAfterScreenUpdates. Xcode UI Testing runs in a separate process, and therefore cannot directly access the views.
UI Automation, Apple's now-deprecated Javascript UI testing library, had a function calledcaptureScreenWithName.
Unfortunately, the new Xcode UI Testing lacks any similar function in its testing library, which to me seems like a glaring omission and I encourage you to submit a Radar for it, as taking screenshots is fundamental to perceptual difference tests (which it sounds like you're trying to do). I hope (and expect) that able will address this deficiency in later Xcode updates.
In the meantime, there are more creative approaches to taking screenshots. See this stack overflow response for a workaround involving taking the screenshot in the app itself and then sending it to the test process.
I' ve created a tool that saves the tests last n screenshots and generates the JUnit tests results report, parsing TestSummaries plist file from test logs. https://github.com/nacuteodor/ProcessTestSummaries
Maybe, that helps you.
Facebook's FBSnapshotTestCase can be alternative solution:
https://github.com/facebook/ios-snapshot-test-case
I found several other threads with similar problems, but no one has exactly the same problems.
Besides it DID work some time! the errors now keep occurring while it was working some time before..
When Running my app, that has a build Target "Today View Extension", I get no actual result.
The Extension is shown in Notification Center, but has no body (Simulator AND device).
Also when I try to run the App (not the target extension) and attach the process manually by PID I get this error:
I also had the error that my Extension (that has a "Bundle Display Name" entry in Info.plist for a custom Name) did show the Name of the Extension-containing App, and not the string that was set in the Info.plist
Strange thing is that sometimes it worked, sometimes it doesn't, but when it does not there were like five different reasons why not.
I want to ask people who have similar/same problems to post them here to collect all the issues appearing and possibly collect workarounds / solutions for these problems.
Thank you.
For anyone having troubles now:
With beta 4 and beta SDK 4 a lot of bugs were fixed:
[self setPrefferedContentSize:]
to set the views size is now working properly (if you have troubles viewing your Extension)
If your updated Extension is not showing in Notification Center be sure to have a look at the log output, there you can see what task the debugger is attached to, if there is "no Selection" try stopping and running again, it will work after some tries!
If you have questions feel free to ask,
Happy coding
I don't exactly have a solution, but I've observed this happening when anything is "wrong" with my Today extension. For example, if I don't have a file properly targeting the widget. I'm guessing that instead of just crashing to the home screen, iOS just gives you an empty widget? I've written about my own issues here, for reference.
I had similar issues. But it seems to be alright now. Since the "Today View" is an extension and is bundled with the containing app, you should just build and run the containing app. From there, you can pull down the "Today View" and if your widget / today view is not added, add it.
You should be able to see all your updated changes without a problem with this and you won't have to attach any process.
Trying to follow this video as to how to make the ponydebugger work with my xcode project
http://cocoaheads.tv/ponydebugger-by-jay-thrash/
I'm stuck at 10:00 when he tries to drag the code snippet from the library. When I go to mine and go to Users, nothing shows up. I'm not sure if I messed up my installation.
He created those code snippets manually in Xcode so he doesn't have to type during the demo. This isn't something that gets installed by PonyDebugger. To follow the demo, you can simply type what he drags in.
For more information on Xcode Snippets (which are awesome), see this article: http://nshipster.com/xcode-snippets/
Hope that helps!