I can take a photo and it shows in imageviewn but as soon as I leave detailviewn and go to back to detailviewn its disappear. How should the image always be saved?
- (IBAction)takePhoto:(UIButton *)sender {
UIImagePickerController *picker = [[UIImagePickerController alloc] init];
picker.delegate = self;
picker.allowsEditing = YES;
picker.sourceType = UIImagePickerControllerSourceTypeCamera;
[self presentViewController:picker animated:YES completion:NULL];
}
- (IBAction)selectPhoto:(UIButton *)sender {
UIImagePickerController *picker = [[UIImagePickerController alloc] init];
picker.delegate = self;
picker.allowsEditing = YES;
picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
[self presentViewController:picker animated:YES completion:NULL];
}
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
UIImage *chosenImage = info[UIImagePickerControllerEditedImage];
self.imageView.image = chosenImage;
[picker dismissViewControllerAnimated:YES completion:NULL];
}
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker {
[picker dismissViewControllerAnimated:YES completion:NULL];
}
Check your IBOutlet Connection in xib file and You have to save the image taken in documents directory of your application , unless you cannot view the selected image
Related
I have two image views. When I click a button (e.g. takePhoto) underneath of the 1st image view, the photo taken appears in the first image view. However, when I tap the second "takephotoTwo" button, I want the second photo taken to appear in the second image view (imageTwo). Right now, if I take a photo using the second "takephotoTwo" button, the final (same) image appears in both image views. See code below - does anyone know how I can fix this? I hope I explained this well enough.
E.g.
The photo taken with takePhoto (button) should appear in imageView, and the photo taken with takephotoTwo (button) should appear in imageTwo.
ViewController.m
- (IBAction)selectPhoto:(id)sender {
UIImagePickerController *picker = [[UIImagePickerController alloc] init];
picker.delegate = self;
picker.allowsEditing = YES;
picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
[self presentViewController:picker animated:YES completion:NULL];
}
- (IBAction)takePhoto:(id)sender {
UIImagePickerController *picker = [[UIImagePickerController alloc] init];
picker.delegate = self;
picker.allowsEditing = YES;
picker.sourceType = UIImagePickerControllerSourceTypeCamera;
[self presentViewController:picker animated:YES completion:NULL];
}
- (IBAction)takePhotoTwo:(id)sender {
UIImagePickerController *picker = [[UIImagePickerController alloc] init];
picker.delegate = self;
picker.allowsEditing = YES;
picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
[self presentViewController:picker animated:YES completion:NULL];
}
- (IBAction)selectPhotoTwo:(id)sender {
UIImagePickerController *picker = [[UIImagePickerController alloc] init];
picker.delegate = self;
picker.allowsEditing = YES;
picker.sourceType = UIImagePickerControllerSourceTypeCamera;
[self presentViewController:picker animated:YES completion:NULL];
}
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
UIImage *secondImage = info[UIImagePickerControllerEditedImage];
self.imageTwo.image = secondImage;
UIImage *chosenImage = info[UIImagePickerControllerEditedImage];
self.imageView.image = chosenImage;
[picker dismissViewControllerAnimated:YES completion:NULL];
}
This is easily achieved by keeping track of which button was tapped or storing a reference to the proper image view based on which button was tapped. Then in the image picker delegate method you set the appropriate image view.
Add an instance variable of type UIImageView * named selectedImageView.
Then update the rest of your code as follows:
- (IBAction)selectPhoto:(id)sender {
UIImagePickerController *picker = [[UIImagePickerController alloc] init];
picker.delegate = self;
picker.allowsEditing = YES;
picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
selectedImageView = self.imageView; // Add this
[self presentViewController:picker animated:YES completion:NULL];
}
- (IBAction)takePhoto:(id)sender {
UIImagePickerController *picker = [[UIImagePickerController alloc] init];
picker.delegate = self;
picker.allowsEditing = YES;
picker.sourceType = UIImagePickerControllerSourceTypeCamera;
selectedImageView = self.imageView; // Add this
[self presentViewController:picker animated:YES completion:NULL];
}
- (IBAction)takePhotoTwo:(id)sender {
UIImagePickerController *picker = [[UIImagePickerController alloc] init];
picker.delegate = self;
picker.allowsEditing = YES;
picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
selectedImageView = self.imageTwo; // Add this
[self presentViewController:picker animated:YES completion:NULL];
}
- (IBAction)selectPhotoTwo:(id)sender {
UIImagePickerController *picker = [[UIImagePickerController alloc] init];
picker.delegate = self;
picker.allowsEditing = YES;
picker.sourceType = UIImagePickerControllerSourceTypeCamera;
selectedImageView = self.imageTwo; // Add this
[self presentViewController:picker animated:YES completion:NULL];
}
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
UIImage *image = info[UIImagePickerControllerEditedImage];
selectedImageView.image = image;
[picker dismissViewControllerAnimated:YES completion:NULL];
}
The problem is that no matter which button is tapped, you are giving your UIImagePickerController the same delegate. Therefore the same imagePickerController:didFinishPickingMediaWithInfo: is called. But at that point you have no way of knowing which button was tapped, so you have no way of knowing what image view to put the picture into.
Either give the UIImagePickerController a different delegate for each different button, or store in an instance variable somewhere some information about which button was tapped, so that imagePickerController:didFinishPickingMediaWithInfo: can decide correctly what to do.
I'm using ios 8.4. When debugging an app, and I present a UIImagePickerController, xcode loses connection with the iphone. This wasn't a problem before.
Sometimes it will bring up the image picker... but then when I save an image, there'll be a crash.
Is anyone else experiencing this? How to fix?
UIImagePickerController *imagePickerController = [[UIImagePickerController alloc] init];
imagePickerController.sourceType = UIImagePickerControllerSourceTypeCamera;
imagePickerController.editing = NO;
imagePickerController.delegate = self;
imagePickerController.showsCameraControls=YES;
[self presentViewController:imagePickerController animated:YES completion:nil];
try this code
- (IBAction)galleryButtonPressed:(id)sender
{
UIImagePickerController *pickerController = [[UIImagePickerController alloc] init];
if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypePhotoLibrary]) {
pickerController.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
pickerController.allowsEditing = YES;
pickerController.delegate = self;
[self presentViewController:pickerController animated:YES completion:NULL];
}
}
#pragma mark - UIImagePickerControllerDelegate
- (void)imagePickerController:(UIImagePickerController *)picker
didFinishPickingMediaWithInfo:(NSDictionary *)info
{
[self dismissViewControllerAnimated:YES completion:NULL];
UIImage *image = [info objectForKey:UIImagePickerControllerEditedImage];
if (image == nil)
image = [info objectForKey:UIImagePickerControllerOriginalImage];
// Do something with the image
[self.imageView setImage:image];
}
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker
{
[self dismissViewControllerAnimated:NO completion:nil];
}
In iOS 8, When i click to open the camera from my ipad mini it gives warning
"Snapshotting a view that has not been rendered results in an empty snapshot"
I am using the below code to open camera from my device.
- (IBAction)takePhotograph:(UIButton *)sender {
UIImagePickerController *picker = [[UIImagePickerController alloc] init];
picker.delegate = self;
picker.allowsEditing = YES;
picker.sourceType = UIImagePickerControllerSourceTypeCamera;
[self presentViewController:picker animated:YES completion:NULL];
}
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
UIImage *chosenImage = info[UIImagePickerControllerEditedImage];
[self.cmdTakePhotograph setImage:chosenImage forState:UIControlStateNormal];
[picker dismissViewControllerAnimated:YES completion:NULL];
imageTaken = 1;
Compress = 1;
self.lblErrMsg.hidden = YES;
}
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker {
[picker dismissViewControllerAnimated:YES completion:NULL];
}
Please suggest me solution to remove this warning.
Hope this helps you.
UIImagePickerController *imagePicker = [[UIImagePickerController alloc] init];
[imagePicker setSourceType:UIImagePickerControllerSourceTypeCamera];
[imagePicker setDelegate:self];
if ([self respondsToSelector:#selector(presentViewController:animated:completion:)])
{
[imagePicker setShowsCameraControls:NO];
[self presentViewController:imagePicker animated:YES completion:^{
[imagePicker setShowsCameraControls:YES];
}];
}
else
{
[imagePicker setShowsCameraControls:YES];
[self presentModalViewController:imagePicker animated:YES];
}
I am trying to select a picture from the device's photo library.
This is my code so far. I am following a tutorial and that should work, but I am getting an error :
"Use of undeclared identifier info", on the second method, line 3.
What am I doing wrong?
- (IBAction)selectPicturePressed:(UIButton *)sender {
UIImagePickerController *picker = [[UIImagePickerController alloc] init];
picker.delegate = self;
picker.allowsEditing = NO;
picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
[self presentViewController:picker animated:YES completion:NULL];
}
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingImage:(UIImage *)img editingInfo:(NSDictionary *)editInfo
{
UIImage *chosenImage = [info objectForKey:#"UIImagePickerControllerOriginalImage"];
self.imgToUpload.image = chosenImage;
[picker dismissViewControllerAnimated:YES completion:NULL];
}
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker {
[picker dismissViewControllerAnimated:YES completion:NULL];
}
Change info to editInfo will resolve it.
I've not seen these two issues compounded together, so I figured I'd ask.
PhotoViewController
-(void)viewDidAppear:(BOOL)animated
{
UIImagePickerController *picker = [[UIImagePickerController alloc]init];
picker.delegate = self;
if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]){
picker.sourceType = UIImagePickerControllerSourceTypeCamera;
}
else if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeSavedPhotosAlbum]){
picker.sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum;
}
[self presentViewController:picker animated:YES completion:NULL];
}
-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
UIImage *image = info[UIImagePickerControllerEditedImage];
if(!image) image = info[UIImagePickerControllerOriginalImage];
picker.delegate = self;
[self setPhotoForNextVC:image];
[self dismissViewControllerAnimated:YES completion:nil];
[self performSegueWithIdentifier:#"givePhotoToGiveDetailsSegue" sender:self];
}
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker {
[self dismissViewControllerAnimated:YES completion:nil];
}
Selecting a photo works, but when I press cancel the UIImagePickerController keeps coming back up, and I get the error:
Presenting view controllers on detached view controllers is discouraged <UINavigationController: 0x10b38b560>.
I had faced this problem before as well.
For me it turned out to be that, especially in ViewDidAppear.
The OS doesn't like to put up new controllers right after another appears.
Make another method that handles this.
(void)bringUpCameraController {
UIImagePickerController *picker = [[UIImagePickerController alloc]init];
picker.delegate = self;
if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]){
picker.sourceType = UIImagePickerControllerSourceTypeCamera;
}
else if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeSavedPhotosAlbum]){
picker.sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum;
}
[self presentViewController:picker animated:YES completion:NULL];
}
My workaround :[self performSelector:<(bringUpCameraController)> withObject:<(nil)> afterDelay:<(2.0)>]
this will get rid of the message.
Look up the tree to PhotoViewController's hierarchy. It's probably not the root. I had this happen.
The error message is literal.