Question 72260 in IOS Swift Question posted in
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How to store file with local path in iOS – Ios swift

I am a React native developer and I was trying to integrate a native ios code.

One of the instance takes NSURL * which should be a local path I guess

https://github.com/uber/startup-reason-reporter/blob/master/StartupReasonReporter/StartupReasonReporterPriorRunInfo/UBApplicationStartupReasonReporterPriorRunInfo.h#L21

+ (nonnull instancetype)priorRunAtDirectoryURL:(nullable NSURL *)directoryURL;

I am not sure what does localPath Url looks like in IOS, like what should I pass? for example?

Ps: intentionally including swift tag as well because I think swift developers could also answer it.

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2

Answers


  1. 0

    Based on description of that function:

    • Returns the prior run information stored to disk at the given directory URL.
    • @param directoryURL The directory to use to to store the startup reason data.
    • @return the previous startup reason data if it was present on disk, or empty startup reason object.
      */

    you need to provide a directory they can write into. So Apps’s document directory would be the best (as a root) + whatever folder you want (which, based on their code, they will even create for you).
    So:

    NSURL* docs = [[[NSFileManager defaultManager] URLsForDirectory:NSDocumentDirectory inDomains:NSUserDomainMask] lastObject];
NSURL* myCrashes = [docs URLByAppendingPathComponent:@"myCrashes" isDirectory:TRUE];

    it will look something like:

    file:///some/path/to/app/sandbox/data/Documents/myCrashes
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  2. 0

    Try looking up documentation for

    - (NSArray<NSURL *> *)URLsForDirectory:(NSSearchPathDirectory)directory 
                         inDomains:(NSSearchPathDomainMask)domainMask;`

    That will get you the URL and check out FileManager.SearchPathDirectory enum for all the viable options:

    Here’s an example for getting the caches directory

    NSURL* url = [[[NSFileManager defaultManager] URLsForDirectory:NSCachesDirectory inDomains:NSUserDomainMask] lastObject];`

    It could be any one of the 25-26 options in SearchPathDirectory depending on where they put that stuff.

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