在iPhone中以特定名称在Documents目录中保存文件失败

Question

I am using following code to save a file in iPhone Documents directory

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask, YES);
NSString *documentsPath = [paths objectAtIndex:0];
NSString *mediaFile = [documentsPath stringByAppendingPathComponent:[message getMediaName]];
NSString *filePath = [documentsPath stringByAppendingPathComponent:[NSString stringWithFormat:@"%@%@", mediaFile, IMAGE_EXTENSION]];
NSError *error = nil;
[data writeToFile:filePath options:NSDataWritingAtomic error:&error];

A sample of the filePath is

/Users/Umar/Library/Developer/CoreSimulator/Devices/8B419461-4E18-4E2F-923D-01092CA2263C/data/Containers/Data/Application/AD869525-92F9-4C5A-8FCE-CF67F05F8CEA/Documents/Users/Umar/Library/Developer/CoreSimulator/Devices/8B419461-4E18-4E2F-923D-01092CA2263C/data/Containers/Data/Application/AD869525-92F9-4C5A-8FCE-CF67F05F8CEA/Documents/32286_1_44f74dc9d027d53bfa3e0bde9a28bf49.jpg

The path upto documents do exist and I have checked via Finder. Not sure Why i am getting error Error Domain=NSCocoaErrorDomain Code=4 "The folder “32286_1_44f74dc9d027d53bfa3e0bde9a28bf49.jpg” doesn't exist."

Answer 1

The problem is in this two lines

NSString *mediaFile = [documentsPath stringByAppendingPathComponent:[message getMediaName]];
NSString *filePath = [documentsPath stringByAppendingPathComponent:[NSString stringWithFormat:@"%@%@", mediaFile, IMAGE_EXTENSION]];

Output of mediaFile is

/Users/Umar/Library/Developer/CoreSimulator/Devices/8B419461-4E18-4E2F-923D-01092CA2263C/data/Containers/Data/Application/AD869525-92F9-4C5A-8FCE-CF67F05F8CEA/Documents/32286_1_44f74dc9d027d53bfa3e0bde9a28bf49

Output of filePath is combination of

documentPath + mediaFile + Image Extension

So problem is that document path exist two times, that's why compiler have problem in finding path and returning error.

I hope this will help you.