CODEWITHSUNDEEP
iphoneobjective-cuiimageview
Yama
Yama

Reputation: 2649

how to rename image captured in objective c?

In my application I need to capture image as well as save it on local library and on server using FTP. Now I need to follow a format for image name while saving it on the server. I am able to capture and save the image on local library. But I am unable to find any method to change the name of the Image. Suppose I need to rename it as Productname-UserId.png Is there any way? Kindly help.

Thank you.

Upvotes: 1

Views: 1212

Answers (2)

Ariel
Ariel

Reputation: 2440

The real question here is where do you want the file name to be specific? On the device or on the server. In case of device use Charles answer, otherwise you should look at http protocol(file upload part). Actually it doesn't matter what name the file have on you local device, as when you send it to the server over http, you can provide any name. The tricky part here is that the server you are uploading to should take that parameter into account when saving that file. So if you are uploading to a server that you don't have hand on and it does some self naming convention - you probably stuck. If it's yours - look at how you're saving files on the server side and if you are taking in account that "filename" parameter...

P.S. And don't forget to pass that argument to the upload request :)

Upvotes: 0

SplinterReality
SplinterReality

Reputation: 3410

UIImagePNGRepresentation(UIImage*) is likely what you're looking for. You can save a UIImage as a PNG file in the Application Documents folder, then upload that to a server. The code to do this is quite trivial, so if you could post the code you're trying to use, that would be helpful to understanding, and recommending a solution for you.

Here's a short clipping from my code that does exactly this:

UIImage * image; // Some image you want to send

NSString * docDirWithSlash = [[self applicationDocumentsDirectory] stringByAppendingString:@"/"];
NSString * pngFile = [docDirWithSlash stringByAppendingString:file]; // <-- Change the string "file" to reflect the name you want.
[UIImagePNGRepresentation(image) writeToFile:pngFile atomically:YES];

// Send pngFile to the server here

Where applicationDocumentsDirectory looks like this:

- (NSString *) applicationDocumentsDirectory
{
    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); 

    NSString *documentsDirectoryPath = [paths objectAtIndex:0];
    return documentsDirectoryPath;
}

Upvotes: 3

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