This is how I show and save from my camera:
-(IBAction)Camera:(id)sender{
if ([UIImagePickerController isSourceTypeAvailable:
UIImagePickerControllerSourceTypeCamera])
{
UIImagePickerController *imagePicker = [[UIImagePickerController alloc] init];
imagePicker.delegate = self;
imagePicker.sourceType = UIImagePickerControllerSourceTypeCamera;
imagePicker.mediaTypes = [NSArray arrayWithObjects: (NSString *) kUTTypeImage,nil];
imagePicker.allowsEditing = NO;
[self presentModalViewController:imagePicker animated:YES];
newMedia = YES;
}
}
-(void) imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
[self dismissModalViewControllerAnimated:YES];
NSString *mediaType = [info objectForKey:UIImagePickerControllerMediaType];
if ([mediaType isEqualToString:(NSString *)kUTTypeImage]) {
UIImage *image = [self scaleThenRotateImage:[info objectForKey:UIImagePickerControllerOriginalImage]];
imageView.image = image;
if (newMedia)
UIImageWriteToSavedPhotosAlbum(image, self, #selector(image:finishedSavingWithError:contextInfo:), nil);
}
else if ([mediaType isEqualToString:(NSString *)kUTTypeMovie]) {
// Code here to support video if enabled
}
}
But the problem is, I'm using a picker that uses ALAsset,that can multiselect then displays a checkmark on images selected.
So for example I take a picture from my camera(with the code above) then go to my camera roll to select images(multiple/single) with the imageTaken, it doesnt display any checkmark when I show the picker, so I'm assuming the solution is I need to save it by/with ALAsset.
Should I just change this:
UIImagePickerControllerOriginalImage
to
UIImagePickerControllerMediaMetadata
or what should I do/change? Thanks for the answers.
I am implementing for imagePicker demo but it is not working.
When i click to pick image button ,nothing is happen. My code is as follow:
-(IBAction)pick:(id)sender
{
ipc=[[UIImagePickerController alloc]init];
ipc.delegate=self;
ipc.sourceType=UIImagePickerControllerSourceTypePhotoLibrary;
NSLog(#" %#",ipc.sourceType);
[ipc presentModalViewController:self animated:YES];
}
-(void)imagePickerControllerDidCancel:(UIImagePickerController *)picker
{
[[picker parentViewController]dismissModalViewControllerAnimated:YES];
[picker release];
}
-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
img.image=[info objectForKey:UIImagePickerControllerOriginalImage];
[[picker parentViewController]dismissModalViewControllerAnimated:YES];
[picker release];
}
please change ur code
[ipc presentModalViewController:self animated:YES];
to
[self presentModalViewController:ipc animated:YES];
The problem is you are trying to present the Modal view using:
[ipc presentModalViewController:self animated:YES];
Instead you should use:
[self presentModalViewController:ipc animated:YES];
How about this:
-(IBAction)pick:(id)sender
{
if ([UIImagePickerController isSourceTypeAvailable:
UIImagePickerControllerSourceTypeCamera])
{
UIImagePickerController *imagePicker =
[[UIImagePickerController alloc] init];
imagePicker.delegate = self;
imagePicker.sourceType =
UIImagePickerControllerSourceTypeCamera;
imagePicker.mediaTypes = [NSArray arrayWithObjects:
(NSString *) kUTTypeImage,
nil];
imagePicker.allowsEditing = NO;
[self presentModalViewController:imagePicker
animated:YES];
newMedia = YES;
}
-(void) imagePickerController:(UIImagePickerController *)picker
didFinishPickingMediaWithInfo:(NSDictionary *)info
{
[self.popoverController dismissPopoverAnimated:YES];
NSString *mediaType = [info
objectForKey:UIImagePickerControllerMediaType];
if ([mediaType isEqualToString:(NSString *)kUTTypeImage]) {
UIImage *image = [info
objectForKey:UIImagePickerControllerOriginalImage];
imageView.image = image;
if (newMedia)
UIImageWriteToSavedPhotosAlbum(image,
self,
#selector(image:finishedSavingWithError:contextInfo:),
nil);
}
else if ([mediaType isEqualToString:(NSString *)kUTTypeMovie])
{
// Code here to support video if enabled
}
}
I have this code for send images on tweet. When I try the app, the picker works well but it doesn't grab the image. What's wrong?
- (IBAction)sendImageTweet:(id)sender
{
UIImagePickerController *picker = [[UIImagePickerController alloc] init];
picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
picker.delegate = self;
picker.allowsEditing = NO;
[self presentModalViewController:picker animated:YES];
}
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
TWTweetComposeViewController *tweetViewController = [[TWTweetComposeViewController alloc] init];
UIImage *image = [info objectForKey:#"UIImagePickerControllerOriginalImage"];
NSData *imageData = UIImagePNGRepresentation(image);
[self dismissModalViewControllerAnimated:YES];
[tweetViewController addImage:(UIImage *)imageData];
[self presentModalViewController:tweetViewController animated:YES];
}
You should use the constant, not an NSString and the key.
UIImage *image = [info objectForKey:UIImagePickerControllerOriginalImage];
I am working to capture an image that is returned in 4.0 using
- (void)imagePickerController:(UIImagePickerController *)picker
didFinishPickingMediaWithInfo:(NSDictionary *)info
{
[[picker parentViewController] dismissModalViewControllerAnimated:YES];
// MediaType can be kUTTypeImage or kUTTypeMovie. If it's a movie then you
// can get the URL to the actual file itself. This example only looks for images.
//
NSString* mediaType = [info objectForKey:UIImagePickerControllerMediaType];
// NSString* videoUrl = [info objectForKey:UIImagePickerControllerMediaURL];
// Try getting the edited image first. If it doesn't exist then you get the
// original image.
//
if (CFStringCompare((CFStringRef) mediaType, kUTTypeImage, 0) == kCFCompareEqualTo) {
UIImage* picture = [info objectForKey:UIImagePickerControllerEditedImage];
if (!picture)
picture = [info objectForKey:UIImagePickerControllerOriginalImage];
// **picture is always nil
// info dictionary count = 1
}
}
What is happening is that the info dictionary always returns with a single entry:
{
UIImagePickerControllerMediaType =
"public.image";
which is great, but there is never an image.
I was using a great example from this forum to do this, and I am pretty sure the calls are correct, but never an image.
Thanks in advance!
I know this is many months later, but I struggled with this for hours, and found this same question all over this site and iphonedevsdk.com, but never with a working answer.
To summarize, if the image was picked from the camera roll/photo library it worked fine, but if the image was a new photo take with the camera it never worked. Well, here's how to make it work for both:
You have to dismiss and release the UIImagePickerController before you try to do anything with the info dictionary. To be super-clear:
This DOES NOT work:
- (void)imagePickerController:(UIImagePickerController *)picker
didFinishPickingMediaWithInfo:(NSDictionary *)info {
// No good with the edited image (if you allowed editing)
myUIImageView.image = [info objectForKey:UIImagePickerControllerEditedImage];
// AND no good with the original image
myUIImageView.image = [info objectForKey:UIImagePickerControllerOriginalImage];
// AND no doing some other kind of assignment
UIImage *myImage = [info objectForKey:UIImagePickerControllerEditedImage];
[picker dismissModalViewControllerAnimated:YES];
[picker release];
}
In all of those cases the image will be nil.
However, via the magic of releasing the UIImagePickerController first...
This DOES work:
- (void)imagePickerController:(UIImagePickerController *)picker
didFinishPickingMediaWithInfo:(NSDictionary *)info {
[picker dismissModalViewControllerAnimated:YES];
[picker release];
// Edited image works great (if you allowed editing)
myUIImageView.image = [info objectForKey:UIImagePickerControllerEditedImage];
// AND the original image works great
myUIImageView.image = [info objectForKey:UIImagePickerControllerOriginalImage];
// AND do whatever you want with it, (NSDictionary *)info is fine now
UIImage *myImage = [info objectForKey:UIImagePickerControllerEditedImage];
}
Crazy simple, but that's all there is to it.
whilst Matthew Frederick's answer is most popular and has long been the appropriate response, as of iOS 5.0, apple made available dismissViewControllerAnimated:completion:, to replace the now deprecated (as of iOS 6.0) dismissViewControllerAnimated:.
performing the image info dictionary retrieval in the completion block should hopefully make more sense to all.
to take his example from above, it would now look like:
- (void) imagePickerController:(UIImagePickerController *)picker
didFinishPickingMediaWithInfo:(NSDictionary *)info
{
[picker dismissViewControllerAnimated:YES completion:^{
// Edited image works great (if you allowed editing)
myUIImageView.image = [info objectForKey:UIImagePickerControllerEditedImage];
// AND the original image works great
myUIImageView.image = [info objectForKey:UIImagePickerControllerOriginalImage];
// AND do whatever you want with it, (NSDictionary *)info is fine now
UIImage *myImage = [info objectForKey:UIImagePickerControllerEditedImage];
}];
}
I've tried all above, but no luck on iPad 6.0/6.1 simulator, however i've found that info contains "UIImagePickerControllerReferenceURL" key and here is my code:
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
[picker dismissViewControllerAnimated:YES completion:NULL];
UIImage* image = [info objectForKey:UIImagePickerControllerOriginalImage];
if(NULL == image){
[MyImageLoader loadImageFromAssertByUrl:[info objectForKey:#"UIImagePickerControllerReferenceURL"]
completion:^(UIImage* img){
//img not null here
}];
}else{
//image not null here
}
}
and code for loadImageFromAssertByUrl is:
+(void) loadImageFromAssertByUrl:(NSURL *)url completion:(void (^)(UIImage*)) completion{
ALAssetsLibrary *assetLibrary=[[ALAssetsLibrary alloc] init];
[assetLibrary assetForURL:url resultBlock:^(ALAsset *asset) {
ALAssetRepresentation *rep = [asset defaultRepresentation];
Byte *buffer = (Byte*)malloc(rep.size);
NSUInteger buffered = [rep getBytes:buffer fromOffset:0.0 length:rep.size error:nil];
NSData *data = [NSData dataWithBytesNoCopy:buffer length:buffered freeWhenDone:YES];
UIImage* img = [UIImage imageWithData:data];
completion(img);
} failureBlock:^(NSError *err) {
NSLog(#"Error: %#",[err localizedDescription]);
}];
}
There's also a known bug with some versions of XCode and Mountain Lion. Check your console for this message:
2013-01-17 21:36:34.946 3sure-ios[5341:1803] Named service 'com.apple.PersistentURLTranslator.Gatekeeper' not found. assetsd is down or misconfigured. Things will not work the way you expect them to.
It probably won't work if that message appears. Check your app at the actual iOS device.
Nevetheless, restarting both simulator and XCode seems to fix the issue.
I had the same symptoms, but in my case it turned out I had a category on something in the UIImagePickerController hierarchy that overrode "uuid" or "setUUID"? I guess CoreData needs these methods or it gets very, very confused, and the asset library is all CoreData stuff.
use
[[UIImagePickerController alloc] init];
instead of
[[UIImagePickerController alloc] initWithNibName:(NSString *) bundle:(NSBundle *)];
-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
[picker dismissViewControllerAnimated:YES completion:NULL];
//Image picker for nil value
UIImage* selectedImage = [info objectForKey:UIImagePickerControllerOriginalImage];
NSLog(#"my Info :: %#", info);
if(NULL == selectedImage){
UIImage * selectedImage = [PhotoViewController loadImageFromAssertByUrl:[info objectForKey:#"UIImagePickerControllerReferenceURL"]
completion:^(UIImage * selectedImage){
//img not null here
NSLog(#"img2 ::: %#", selectedImage);
uploadImg.image = selectedImage;
[self.view addSubview:PermissionView];
}];
}else{
//image not null here
NSLog(#"Up IMG00 :: %#", uploadImg.image);
NSLog(#"Sel IMG00 :: %#", selectedImage);
uploadImg.image = [selectedImage retain];
NSLog(#"Up IMG22 :: %#", uploadImg.image);
NSLog(#"Sel IMG22 :: %#", selectedImage);
}
}
+(UIImage *) loadImageFromAssertByUrl:(NSURL *)url completion:(void (^)(UIImage*)) completion{
__block UIImage* img;
ALAssetsLibrary *assetLibrary=[[ALAssetsLibrary alloc] init];
[assetLibrary assetForURL:url resultBlock:^(ALAsset *asset) {
ALAssetRepresentation *rep = [asset defaultRepresentation];
Byte *buffer = (Byte*)malloc(rep.size);
NSUInteger buffered = [rep getBytes:buffer fromOffset:0.0 length:rep.size error:nil];
NSData *data = [NSData dataWithBytesNoCopy:buffer length:buffered freeWhenDone:YES];
img = [UIImage imageWithData:data];
completion(img);
NSLog(#"img ::: %#", img);
} failureBlock:^(NSError *err) {
NSLog(#"Error: %#",[err localizedDescription]);
}];
return img;
}
Following Steps needs to be followed:
1) Make UIActionSheet
2) On selection necessary source type - load resrouces
3) didFinishPickingMediaWithInfo - set image from image Dictionary recieved
- (IBAction)actionButtonUpload:(id)sender {
UIActionSheet *actionSheet = [[UIActionSheet alloc] initWithTitle:nil delegate:self
cancelButtonTitle:#"Cancel" destructiveButtonTitle:nil otherButtonTitles:#"Camera",#"Photo Library", nil];
[actionSheet showInView:self.view];
}
#pragma mark -- UIActionSheet Delegate
-(void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex{
UIImagePickerController *picker = [[UIImagePickerController alloc] init];
picker.delegate = self;
picker.allowsEditing = YES;
UIAlertView *alert;
switch (buttonIndex) {
case 0:
if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {
NSLog(#"No camera!");
picker.sourceType = UIImagePickerControllerSourceTypeCamera;
[self presentViewController:picker animated:YES completion:NULL];
} else {
alert = [[UIAlertView alloc]initWithTitle:#"Alumnikonnect" message:#"Camera is not available, please select a different media" delegate:nil cancelButtonTitle:#"Ok" otherButtonTitles:nil];
[alert show];
}
break;
case 1:
if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypePhotoLibrary]) {
picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
[self presentViewController:picker animated:YES completion:NULL];
} else {
alert = [[UIAlertView alloc]initWithTitle:#"Alumnikonnect" message:#"Photolibrary is not available, please select a different media" delegate:nil cancelButtonTitle:#"Ok" otherButtonTitles:nil];
[alert show];
}
break;
}
}
#pragma mark - Image picker delegate
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
self.imageEventPic.layer.cornerRadius = self.imageEventPic.frame.size.height /2;
self.imageEventPic.layer.masksToBounds = YES;
self.imageEventPic.layer.borderWidth = 0;
self.imageEventPic.layer.borderWidth = 1.0f;
self.imageEventPic.layer.borderColor = [UIColor colorWithRed:0.212 green:0.255 blue:0.302 alpha:1.000].CGColor;
self.labelUploadPic.hidden = YES;
self.imageEventPic.image = info[UIImagePickerControllerOriginalImage];
[self dismissViewControllerAnimated:YES completion:NULL];
}
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker
{
[self dismissViewControllerAnimated:YES completion:NULL];
}
-(UIImage*)imageWithImage:(UIImage*)image
scaledToSize:(CGSize)newSize;
{
UIGraphicsBeginImageContext( newSize );
[image drawInRect:CGRectMake(0,0,newSize.width,newSize.height)];
UIImage* newImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return newImage;
}
i try to save a photo from camera after take a photo with a button .
here is my codes:
-(IBAction)savePhoto{
UIImageWriteToSavedPhotosAlbum(img.image, nil, nil);
}
-(IBAction)takePic {
ipc = [[UIImagePickerController alloc]init];
ipc.delegate = self;
ipc.sourceType = UIImagePickerControllerSourceTypeCamera;
[self presentModalViewController:ipc animated:YES];
}
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
img.image = [info objectForKey:UIImagePickerControllerOriginalImage];
[[picker parentViewController]dismissModalViewControllerAnimated:YES];
[picker release];
}
but i dont know why doesnt save anything !
I suspect your image is released before you save it:
img.image = [info objectForKey:UIImagePickerControllerOriginalImage];
The line above returns an autoreleased object. I suggest you retain the image as shown below and then release it when you have saved the image.
img.image = [[info objectForKey:UIImagePickerControllerOriginalImage] retain];
Call [self savePhoto] in -imagePickerController:didFinishPickingMediaWithInfo: after retrieving the image.