I'm going through a memory issue using a simple "UIImagePickerController".
I get two memory warning: one at when I take the image, and one when I touch on the "Use" button...
And the best is, this only append on the 4S (which happen to be my boss's phone). I'm not even able to reproduce this bug on an other model of iPhone (tested on a 3G, 3GS, 4 and 5).
I tried different things and this is this is the simplest exemple which is able to reproduce the problem:
UIImagePickerController *picker = [[UIImagePickerController alloc] init];
picker.sourceType = UIImagePickerControllerSourceTypeCamera;
picker.delegate = self;
[self presentModalViewController:picker animated:YES];
[picker release];
And I implement the delegate methods:
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker
{
[picker dismissModalViewControllerAnimated:YES];
}
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
// should do something with the [[info objectForKey:UIImagePickerControllerOriginalImage] retain];
if (picker.sourceType == UIImagePickerControllerSourceTypeCamera)
UIImageWriteToSavedPhotosAlbum(selectedImage, nil, NULL, nil);
[picker dismissModalViewControllerAnimated:YES];
}
Does anyone know this issue and hopefully the solution?
Thanks a lot!
This is very common. As long as you handle the memory warning without crashing and have enough space to keep going, don't let it drive...
Related
When i open Camera in my app it works fine, but when i navigate in my app and comes back to camera view and again try to open my camera in iPad, app crashes and gives me "Received memory warning". app working fine in iPhone and this issues is only coming in iPad.
My project was without ARC so i converted my project into ARC in the hope to get good results but still my app crashes on camera after little navigation.
can anybody tell me how to decrease memory space with iPad camera so that my apps stop receiving memory warning.
this is my code for camera
if ([UIImagePickerController isSourceTypeAvailable:
UIImagePickerControllerSourceTypeCamera])
{
imagePicker=[[UIImagePickerController alloc] init];
imagePicker.delegate = self;
imagePicker.sourceType =UIImagePickerControllerSourceTypeCamera;
imagePicker.allowsEditing = NO;
//imagePicker.modalPresentationStyle = UIModalPresentationFullScreen;
[self presentViewController:imagePicker animated:YES completion:nil];
}
This is where I get my Image
-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
[Array removeAllObjects];
[picker dismissViewControllerAnimated:YES completion:nil];
image = [info objectForKey:UIImagePickerControllerOriginalImage];
[array addObject:image];
image=nil;
}
and i have also try to use popOverview for camera but it also didn't work.
In my viewController where I'm calling UIImagePickerController I have used 5 animations, before i was calling animation in viewWillAppear, and app was crashing so i changed Animation calling to ViewDidLoad and camera starting working but only until I navigate to my last view and comes back to open camera again.
I am getting same problem so i do like this.
Set UIImagePickerController as static like this.
static UIImagePickerController *imagePicker;
When you get image in this deleget.
- (void) imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
#autoreleasepool {// to release memory
// Probelm is you image size.
// When you get this image it is vary large.
// And i hope you are creating multiple copy's of this image.
// when you get image in
UIImage *image = [info objectForKey:#"UIImagePickerControllerOriginalImage"];
// In last set image as nil
image = nil;
}
}
Hope this will solve you problem.. :-)
Try to run your app without animation and then try, if it works then you need to improve your animations memory allocation, as animation needs a lot of memory.
Please try below code.try UIImagePickerController with in popover
if([UIImagePickerContrller isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera])
{
UIImagePickerController *controller = [[UIImagePickerController alloc] init];
controller.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
controller.allowsEditing = YES;
controller.mediaTypes = [UIImagePickerController availableMediaTypesForSourceType:UIImagePickerControllerSourceTypePhotoLibrary];
controller.delegate = self;
UIPopoverController *popController = [[UIPopoverController alloc] initWithContentViewController:controller];
popController.popoverContentSize = CGSizeMake(350.0f, 500);
[popController presentPopoverFromRect: self.button.frame inView:self.button.superview
permittedArrowDirections:UIPopoverArrowDirectionLeft animated:YES]
}
So I'm retesting one of my apps that I know works with iOS 4.2 and up on the new iOS 5, and for some reason, they don't want to play nice. My UIImagePicker delegate will, upon the user selecting a photo from the photo library, ALWAYS issue an imagePickerControllerDidCancel, and never allow the picture to be selected (just says the image is nil when I try to load it). This is the code I know works on previous versions of iOS, so I have no idea why it wouldn't work now, unless Apple has changed how UIImagePicker works.
-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingImage : (UIImage *)image editingInfo:(NSDictionary *)editingInfo
{
mainPhoto.image = image;
[self saveImage:image];
[picker dismissModalViewControllerAnimated:YES];
}
-(void)imagePickerControllerDidCancel:(UIImagePickerController *) picker
{
[picker dismissModalViewControllerAnimated:YES];
}
And here is the code that calls the UIImagePicker:
UIImagePickerController * picker = [[UIImagePickerController alloc] init];
picker.delegate = self;
picker.sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum;
[self presentModalViewController:picker animated:YES];
[picker release];
Any ideas? Or has anyone else had this problem?
Documentation for
-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingImage : (UIImage *)image editingInfo:(NSDictionary *)editingInfo says,
"Deprecated in iOS 3.0. Use imagePickerController:didFinishPickingMediaWithInfo: instead.".Try to follow the suggestion and let us know if you still face issue ?
I'm soooooo close to finally finishing my first app to put in the store. Everything works just fine and memory leaks are almost totally nonexistent....except when I'm using the Camera or Selecting an Image from the Camera roll.
If the user chooses the camera vs. the roll....the camera works fine...takes a picture and then when they select "Use" it crashes. Same thing for the camera roll. I'm a noob so if I messed something up it wouldn't surprise me. Any help/suggestions greatly appreciated...here's the code:
-(IBAction) getPhoto:(id) sender {
UIImagePickerController * picker = [[UIImagePickerController alloc] init];
picker.delegate = self;
if((UIButton *) sender == choosePhoto) {
picker.sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum;
} else {
picker.sourceType = UIImagePickerControllerSourceTypeCamera;
}
[self presentModalViewController:picker animated:YES];
//[picker release];
}
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
[picker dismissModalViewControllerAnimated:YES];
theimageView.image = [info objectForKey:#"UIImagePickerControllerOriginalImage"];
[picker release];
}
Your problem might be, since you use the original image, since its something like 1400x750 (not sure about the exact dimensions), you are probably running out of memory when you are setting it as the image of the imageview to be displayed...You should probably resize your image to 320x480 or 480x320 to display it in the image view, that will probably fix your problem.
The only issue that jumps out at me is that UIImagePickerControllerOriginalImage is an NSString constant, so you don't want to put it in quotes:
theimageView.image = [info objectForKey:UIImagePickerControllerOriginalImage];
But even if that line were to fail, it would only set theimageView.image to nil which probably shouldn't cause a crash. You should see at least some more info about the crash in the Xcode Console, which will help. Also, check out the tips in this SO answer.
Change
[picker dismissModalViewControllerAnimated:YES];
to
[self dismissModalViewControllerAnimated:YES];
That should work
Holy Crap! Really... I'm frustrated with this problem that get me stuck with my apps for a week now.
Here is the code
- (IBAction)loadTheImage {
UIImagePickerController * picker = [[UIImagePickerController alloc] init];
picker.delegate = self;
picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
// picker.sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum;
[self presentModalViewController:picker animated:YES];
}
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
[picker dismissModalViewControllerAnimated:YES];
imageView.image = [info objectForKey:UIImagePickerControllerOriginalImage];
}
If I set the source as SavedPhotosAlbum (Camera Roll), then it works OK. But when I set it to PhotoLibrary, it just returns nil. And this just happens in OS3.1.2. In OS4 it works OK (ie returns the original image just fine).
Anybody?
A given source may not always be available on every device. This could be because the source is not physically present or because it cannot currently be accessed.
Before attempting to use an UIImagePickerController object to pick an image, you must call [UIImagePickerController isSourceTypeAvailable:] method to ensure that the desired source type is available.
I just started getting into iPhone development. I have been mish-mashing tutorials and material from books in order to get my bearings straight. I come from a PHP and Java background... Objective-C is a bit quirky. But, I learn best by getting my feet wet.
Basically, I have these actions. getPhoto is bound to a couple of UIBarButtonItems in my view.
-(IBAction) getPhoto:(id) sender {
UIImagePickerController * picker = [[UIImagePickerController alloc] init];
picker.delegate = self;
if((UIBarButtonItem *) sender == choosePhoto) {
picker.sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum;
} else {
picker.sourceType = UIImagePickerControllerSourceTypeCamera;
}
[self presentModalViewController:picker animated:YES];
}
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
[picker dismissModalViewControllerAnimated:YES];
theimageView.image = [info objectForKey:#"UIImagePickerControllerOriginalImage"];
}
My goal is to invoke the same action once the application launches, automatically opening the Camera. How would I go about this?
EDIT:
As per this SO question you should actually place it in viewWillAppear or viewDidAppear
Add a similar method to the ApplicationDidFinishLaunching method in the app delegate.
Might be better to place the call in the ViewDidLoad of your root view controller