When an iPhone or iPad app throws an error, what is the recommended way to get the data reported using Monotouch?
I simply use the Console.WriteLine, and a little wrapper around that, which helps me find the place and have some more information (like stacktrace and so on).
Console.WriteLine in MT writes to the device's console, so you can check it with the Organizer tool in XCode, and that really works well.
Am not sure if this is the recommended approach, but I use it, works well, and I personally can recommend it.
Related
I have place several NSLog() in my iOS application, is it possible to see all the logs later on my Mac that was generated when the app ran on iPhone handset even when iPhone was not connected with Mac.
Thanks
No. You can however redirect NSLog to a file, using something like this: http://blog.coriolis.ch/2009/01/09/redirect-nslog-to-a-file-on-the-iphone/
Then you can access the file via Xcode, or upload it with your app. File usage and privacy issues apply.
Keep in mind that NSLog is supposed to be turned off in published apps, so you may want to use a different logging app. A number of NSLog alternatives are available.
Unfortunately this is not possible.
The only thing that you can get is a Crash Log.
If you need a better logging system, I suggest to take a look to CocoaLumberjack, a very powerful logging framework that gives you the opportunity to save log in files and, eventually, send them to a server.
You also have many different levels like: log info, log error, log warning, etc...
You can view crash logs from your iPhone in the Organizer.
If you want to view your own log statements, you could consider TestFlight ( http://testflightapp.com ). They offer an SDK which includes features for remote logging.
I'm fairly certain that's not possible. The device needs to be connected to the Mac in order to run in Xcode's debug mode, and you need to be in debug mode to view the console, which contains your NSLogs.
There is a crash log for every crash that occurs on the phone, which is readable after connecting to your mac. These NSLog's don't appear in this log nor do they appear anywhere else in a (semi) permanent manner.
It's possible using custom macros and a custom class which will write each message in the documents directory in a file.
If the file sharing is enabled in the app you can later download them in iTunes.
Seeing the logs in mac might not be possible. But you can send the log to testflight using TFLog(). But you will need to distribute your app through testflightapp. And integrate the sdk. I think that is what you are looking for. try out - testflightapp.com
I'm debugging an iPhone application and, well, gdb is just not doing it for me.
Are there any alternative debuggers or debugger uis I can use for XCode in general, or specifically for debugging iPhone applications?
lldb is the only supported alternative. Last time I checked it was in alpha state.
Life was better for Apple developers when we had a choice of IDE's (CodeWarrior, Think__, MPW, etc.) and debuggers (anybody remember Jasiks?), but anyways... consider this a business opportunity (to write a better debugger).
Not sure if you care to know this fact, since I have a feeling you're just not too thrilled with Xcode's built in debugging capabilities, but you CAN change the debugger between GDB and LLDB very easily. Look at the "To change the debugger..." section of Apple's Debugging & Analyzing Your Code document (right at the top, within the first screen of text).
I checked all the other variants of this, and don't see the answer here. It seems a lot of folks are thinking of Xcode 4.1, and the issues therein.
First of all, I am very happy with Xcode 4.2. It fixes the huge plethora of problems I was having, and, once again, makes the simulator a useful tool. I am very glad for this, because it is a MUCH faster workflow than using the devices.
Now, 4.2 introduces something in their Edit Scheme dialog (Go to the "Run" page, then "Options"). This is called "Core Location [checkbox] Allow Location Simulation". It allows you to pick from a list of pre-defined locations.
This seems to obviate the horrendous hack that I had introduced when I first encountered the issue in Lion.
However, it no workee. I'd like to find out what I am doing wrong. Has anyone gotten this working?
Remember: THIS BEGINS IN 4.2, WHICH JUST CAME OUT YESTERDAY. So the rules from 4.0 and 4.1 don't apply. It is a new capability.
Thanks!
First, I created the GPX file as mentioned in this question.
In addition to updating the Run Scheme to select the Allow Location Simulation option and specifying the Default Location as you mentioned, you also need to make sure that your Scheme is set to iPhone 5.0 Simulator. This made the trick for me, when I debug my project, the app asks me if I want to allow it to use my current location, and I can see the Debug -> Location menu in the iPhone Simulator.
There's a thread on this bug in the Apple developer forums. One suggestion is to reset the simulator.
I am working on a project where the iPad will be used for a specific purpose, and only run one app. When the device starts up, I want my app to run, and I want to override the home button so that it does not quit the app (like the iPhone/ iPod demos in the store).
I have seen bits and pieces of this functionality, but am unsure how to implement it. I realize that it would have to be on a jailbroken device, and the client is fine with that.
Any ideas?
Thanks!
Thomas
Edit 1: I found this site, which explains some iOS daemons. I'm still researching, so I'll just keep posting what I find.
Edit 2: I found Saurik's IRC channel and asked around in there. One of the participants told me that it is possible, but probably not as simple as I thought. I am still doing some digging around in the iPhone 3G filesystem now just to get the feel of what certain things do.
The project has been scrapped, but I'm still looking for help on this though....just cuz I'm interested lol.
Here's my progress on the issue. Question's still not completely answered, but I'm making some headway :-)
I've been researching Jailbreak and the iOS filesystem as well. That has helped my understanding of the issue some.
Without jailbreaking this would not be possible.
There has to be something in /etc somewhere that runs through all the things that start up, just like on Linux.
It so happens that my current ipod touch has a WALD screen after me manually deleting a few mp3 files. Some anti mp3 mocking code policing it, and not liking me touching the mp3 file structures... otherwise I'd look for you right now.
Do you know how to ssh into your ipod/iphone?
Well, I believe Apple itself uses this on the iPads running at the Apple Stores (those showing animations about the products where you can ask to talk with a blue shirt).
I would look for something on the official IPCU (iPhone Configuration Utility) to check if there is an option for auto-loading apps on boot time.
If not, try to get friends with someone working on an Apple Store and get some hints on how they run their app on those iPads.
you can add the "voip" key in the information plist.
This is backed up by Apple:
You can also see this sample project:
https://github.com/lithium3141/BootLaunch
PB.
When testing my iPhone app I have found it incredibly useful to log information to the console window. I think it is amazing that I can send out an adhoc build to my co-workers and if they experience problems I am able to plug their iPhone into my mac and grab their console output. However, sometimes the console window is blank when we do this. Why is this the case? The code has been built with logging enabled. Besides that, it seems that the console output, when I see it, contains information about not only my app, but other iphone system logging.
Thanks for any insight you can provide.
It looks like if I restart XCode then the console gets populated properly. Must be a bug in XCode, but restarting seems to always work.
It seems to be a new bug in 3.2.3 - older versions worked fine.