Code works on simulator but not on device

Question

I made an app which writes text using "writeToURL" on a txt file attached to the resources. When I load the app on the simulator it writes the text you entered, but when you launch the app on the device it writes nothing. If you have something written on the txt file, the app loaded on the device shows it, but it can´t overwrite it, as the simulator does... what can be wrong? Thx! The code (iOS Objective C):

-(IBAction)cargarALaWeb:(id)sender{
if ([_texto.text isEqualToString:[NSString stringWithFormat:@""]]) {
    [_web1 loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"http://contactonotpad.wix.com/inicio#!ayuda-con-cargar-en-la-web/ak5ig"]]];

}
else{
NSString *textofile=_texto.text;

[textofile writeToURL:[NSURL fileURLWithPath:[[NSBundle mainBundle]pathForResource:@"web" ofType:@"html"]] atomically:YES encoding:NSUTF8StringEncoding error:nil];
    NSLog(@"Escrito");
    [_web1 loadRequest:[NSURLRequest requestWithURL:[NSURL fileURLWithPath:[[NSBundle mainBundle]pathForResource:@"web" ofType:@"html"]]]];
}
}

`

tag the question for the actual language you're using, and show the code you're using. include details of the URL you're trying to write to — Wain, Apr 19 '16 at 11:39

score 1 · Answer 1 · answered Apr 19 '16 at 12:18

1

Any file you want to edit in the app bundle need to be copied into the app documents directory first, then you should edit and use the document from there. You shouldn't / can't edit the app bundle contents.

answered Apr 19 '16 at 12:18

Wain

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Well, actually an html file – Juanjo Daza Apr 19 '16 at 12:24
exactly what i said, copy it to a different location that you are allowed to edit, like the documents directory – Wain Apr 19 '16 at 12:32
I've copied it on several different places and its still not working. :/ – Juanjo Daza Apr 19 '16 at 13:20
so you copied the file and changed `fileURLWithPath` to reference the new location? what is the path of the new location? – Wain Apr 19 '16 at 13:24
Mm... No, I moved the file through the folders ... (Im quite nerd...) I also tried to create a directory, but I couldnt move the file there – Juanjo Daza Apr 19 '16 at 14:08
you still haven't said what paths you tried, you need the app documents directory – Wain Apr 19 '16 at 15:13
That isn't the correct way to get the documents directory. Google: ios get documents directory path – Wain Apr 19 '16 at 19:32

score 0 · Answer 2 · edited May 23 '17 at 11:45

0

How to copy a file to the documents directory

Apples docs on the file system

The short answer. Apps cannot write to files in the bundle for security reasons. Each app is given a "Sandbox" in which files can be edited. You have to write code to copy the file from the bundle to the documents directory where the file can be edited.

edited May 23 '17 at 11:45

Community

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answered Apr 19 '16 at 19:46

Jaybit

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Code works on simulator but not on device

2 Answers2