Write to .plist works on simulator, not on device

[ryMac]

I am trying to store a single an email address for an application in the plist file. It works fine on the simulator, but it doesn't work on my iPhone. Here is my code:

code to view what is in the .plist
//code to retrieve info from plist
NSString *path = [[NSBundle mainBundle] bundlePath];
NSString *finalPath = [path stringByAppendingPathComponent:@"Info.plist"];
NSDictionary *plistData = [[NSDictionary dictionaryWithContentsOfFile:finalPath] retain];

NSString *emailString = [NSString stringWithFormat:@"%@", [plistData objectForKey:@"savedEmail"]];
fromEmailInput.text = emailString;
NSLog(emailString);


code to write to the .plist

NSString *path = [[NSBundle mainBundle] bundlePath];
NSString *propList = [path stringByAppendingPathComponent:@"Info.plist"];

NSMutableDictionary* plistData = [[NSMutableDictionary alloc] initWithContentsOfFile:propList];
if (plistData) {
NSLog(@"write file was found");
[plistData setValue:fromEmailInput.text forKey:@"savedEmail"];
[plistData writeToFile:propList atomically: YES];
}


"write file was found" shows properly in the log when I run the app on my phone. Any idea why this appears to write properly on the simulator and not the phone? Anyone else run into this?

[robbieduncan]

What path are you trying to write to? You can only write to your applications sandboxed area of the filesystem on the device (and certainly not into your applications bundle).

[hell1197]

mainbundle is readonly...

[dusker]

If mainbundle is readonly then to solve this problem we should create another bundle right? can anyone share some code snippet?

[robbieduncan]

If mainbundle is readonly then to solve this problem we should create another bundle right? can anyone share some code snippet?

No. You should not create a bundle at all. You should write to your applications sandboxed area on the filesystem as clearly described in the documentation (http://developer.apple.com/iphone/library/documentation/iPhone/Conceptual/iPhoneOSProgrammingGuide/FilesandNetworking/FilesandNetworking.html#//apple_ref/doc/uid/TP40007072-CH21-SW6).

Seriously it's not rocket science. If you have not read all of the iPhone Application Programming Guide (http://developer.apple.com/iphone/library/documentation/iPhone/Conceptual/iPhoneOSProgrammingGuide/Introduction/Introduction.html#//apple_ref/doc/uid/TP40007072-CH1-SW1) stop writing code right now and read it. It tells you how to do pretty much every basic operation.

[ryMac]

I ended up just writing my value to NSUserDefaults. That worked fine.

Here is the code for that:

NSUserDefaults *prefs = [NSUserDefaults standardUserDefaults];
[prefs setObject:fromEmailInput.text forKey:@"savedEmail"];

Thanks for responding.