copy gallery image to project files Objective-C - ios

Question

I am new in Objective-C and I want choose one image from a Gallery and I want get the name and the extension and copy that image to my project folder.

Answer 1

Use UIimagePicker
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
if ([mediaTypeStr isEqualToString:#"photo"])
{
if ([info objectForKey:UIImagePickerControllerOriginalImage])
{
// images = [NSMutableArray arrayWithCapacity:[info count]];
_images = [[NSMutableArray alloc]init];
UIImage *img = [info objectForKey:UIImagePickerControllerOriginalImage];;
img =[self scaleAndRotateImage:img];
[_images addObject:img];
// Save Photo to library only if it wasnt already saved i.e. its just been taken
[self.alAsstlibrary saveImage:img toAlbum:#"FOlder name" completion:^(NSURL *assetURL, NSError *error)
{
if (error!=nil)
{
//NSLog(#"Big error: %#", [error description]);
}
} failure:nil];
}
else
{
//NSLog(#"UIImagePickerControllerReferenceURL = %#", info);
}
}
[picker dismissViewControllerAnimated:YES completion:Nil];
}

Answer 2

write these in viewdidload or on the buttons click event as per your need..
UIImagePickerController *picker = [[UIImagePickerController alloc] init];
picker.delegate = self;
picker.allowsEditing = NO;//by writing YES here you can edit image also..
picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
[self presentViewController:picker animated:YES completion:NULL];
imgview=[[UIImageView alloc]initWithFrame:CGRectMake(x+y, y, width, height)];
[imgview setTag:i];
imgview.contentMode = UIViewContentModeScaleAspectFill;
[imgview setClipsToBounds:YES];
[self.view addSubview:imgview];
write these in your .m file..
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
//if you write picker.allowsEditing = YES; than write info[UIImagePickerControllerEditedImage] in BELOW line....
UIImage *chosenImage = info[UIImagePickerControllerOriginalImage];
imgview.image = chosenImage;//set selected image in your imageview
[picker dismissViewControllerAnimated:YES completion:NULL];
}
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker
{
[picker dismissViewControllerAnimated:YES completion:NULL];
}
i hope it helps..

Answer 3

To achieve this follow these steps.
Get the image
- (void) getPicture:(id)sender
{
UIImagePickerController *picker = [[UIImagePickerController alloc] init];
picker.delegate = self;
picker.allowsEditing = YES;
picker.sourceType = (sender == myPic) ? UIImagePickerControllerSourceTypeCamera : UIImagePickerControllerSourceTypeSavedPhotosAlbum;
[self presentModalViewController:picker animated:YES];
[picker release];
}
You will get the image in imagePickerController delegate
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingImage (UIImage *)image editingInfo:(NSDictionary *)editingInfo
{
[self save:image];
[picker dismissModalViewControllerAnimated:YES];
}
Save image in documents
-(void)save:(UIImage*)image
{
NSData *pngData = UIImagePNGRepresentation(image);
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsPath = [paths objectAtIndex:0]; //Get the docs directory
NSString *filePath = [documentsPath stringByAppendingPathComponent:#"image.png"]; //Add the file name
[pngData writeToFile:filePath atomically:YES]; //Write the file
}
Get document path
- (NSString *)documentsPathForFileName:(NSString *)name
{
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask, YES);
NSString *documentsPath = [paths objectAtIndex:0];
return [documentsPath stringByAppendingPathComponent:name];
}
Get the Image
NSData *pngData = [NSData dataWithContentsOfFile:filePath];
UIImage *image = [UIImage imageWithData:pngData];