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iosobjective-c

Where can I find the file that I created with writeToFile?

I used writeToFile to create input.txt file , but without this file in the path of the project I don't know how can I find it. 

NSString* str2 = [NSString stringWithUTF8String:cstr];
[str2 writeToFile:@"input.txt" atomically:YES encoding:NSUTF8StringEncoding error:nil];
NSString* str3 = [NSString stringWithContentsOfFile:@"input.txt" encoding:NSUTF8StringEncoding error:nil];
Solution

  • You need to add a path to your app Documents folder to your file:

    //get path to Documents 
NSString *documentPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];
//add path to you file name
NSString *fileWithPath = [documentPath stringByAppendingPathComponent:@"input.txt"];
//then write
[str2 writeToFile:fileWithPath atomically:TRUE encoding:NSUTF8StringEncoding error:NULL];

    then you will be able to read it back using fileWithPath:

    NSString* str3 = [NSString stringWithContentsOfFile:fileWithPath encoding:NSUTF8StringEncoding error:nil];