CODEWITHSUNDEEP
objective-c
Sandy_ios
Sandy_ios

Reputation: 667

How to save an image dynamically

I am using photo library in my app. And after selecting image from photo library or camera i want to save that image into my Documents folder. So here i want to give name to that image while saving is it possible to set name to the selected image? If means please let me know. I am trying that only if possible i will post that.Thank you.

Upvotes: 1

Views: 391

Answers (3)

AJS
AJS

Reputation: 1403

Declare an integer counterNo and initialize it to 0. And increase its value to change name dynamically.

UIImage *photoImage = [info objectForKey:@"UIImagePickerControllerOriginalImage"];

counterNo++;

NSString *aaa = [NSString stringWithFormat:@"Documents/myImage-%d.png" , counterNo];
NSString *savedDoc = [NSHomeDirectory() stringByAppendingPathComponent:aaa];
BOOL status = [[NSFileManager defaultManager] fileExistsAtPath:savedDoc];

if(status){

    [[NSFileManager defaultManager] removeItemAtPath:savedDoc error:nil];

}
[UIImagePNGRepresentation(photoImage) writeToFile:savedDoc atomically:YES];
[picker dismissModalViewControllerAnimated:YES];

Upvotes: 0

DJPlayer
DJPlayer

Reputation: 3294

This is how I do it.. I'm copying and pasting my code so there's some additional functionality.

// image is a UIImage
// inputText is the user selected imagename
// date is a string I inserting to make pictures a unique identifier (i.e. no duplicate names)
NSData *imageData1 = UIImageJPEGRepresentation(image, 1.0);
NSString *imageFilename = [NSString stringWithFormat:@"%@-%@.jpg", inputText,date];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);

NSString *path = [NSString stringWithFormat:@"%@/%@", [paths objectAtIndex:0], imageFilename];

if([imageData1 writeToFile:path atomically:YES]){
    NSLog(@"Write to Document folder success filename = %@",path);
}

Upvotes: 1

AJS
AJS

Reputation: 1403

Use following :

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {

UIImage *photoImage = [info objectForKey:@"UIImagePickerControllerOriginalImage"];
NSString *savedDoc = [NSHomeDirectory() stringByAppendingPathComponent:@"Documents/myImageName.png"];
BOOL status = [[NSFileManager defaultManager] fileExistsAtPath:savedDoc];

if(status){

[[NSFileManager defaultManager] removeItemAtPath:savedDoc error:nil];

}
[UIImagePNGRepresentation(photoImage) writeToFile:savedDoc atomically:YES];
[picker dismissModalViewControllerAnimated:YES];
}

You can set any desired name when saving to document directory.

Upvotes: 0

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