how to know image picking in uiimagepicker and how to modify the picking image or how to call after image picking? and how to get the picking image as background image for next view using xcode for iphone?
You can refer UIImagePickercontroller and use the UIImagePickerController's delegate methods UIImagePickerDelegate
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
// Get the image picked by the image picker
UIImage *image = [info objectForKey:#"UIImagePickerControllerOriginalImage"];
//Do something
}
Use the UIImagePickerController's delegate methods:
- (void)imagePickerController:(UIImagePickerController *)pickerdidFinishPickingMediaWithInfo:(NSDictionary *)info {
// Get the image picked by the image picker
UIImage *image :[info objectForKey:#"UIImagePickerControllerOriginalImage"] ;
//Do something
[picker dismissModalViewControllerAnimated:YES];
}
Or I am sure this link may be helpful to you:
http://www.icodeblog.com/2009/07/28/getting-images-from-the-iphone-photo-library-or-camera-using-uiimagepickercontroller/
Related
I want my custom button to take a picture using UIImagePickerController and to save it in my device.
I can save the picture in the device using the default camera controls, although when i turn them off and start using my custom button it doesn't do the job.
- (IBAction)takePhoto:(id)sender {
[picker takePicture];
}
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
UIImage *chosenImage = info[UIImagePickerControllerEditedImage];
self.imageView.image = chosenImage;
UIImageWriteToSavedPhotosAlbum(chosenImage, nil, nil, nil);
[picker dismissViewControllerAnimated:YES completion:nil];
}
didFinishPickingMediaWithInfo is being called but the picture isn't being saved.
How can i achieve this?
I did something similar and used this tutorial to get be started. Have a look.
http://www.musicalgeometry.com/?p=821
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingImage:(UIImage *)selectedImage editingInfo:(NSDictionary *)editInfo {
NSLog(#"done");
headingLabel.hidden= NO;
//[self playMovie];
[picker dismissViewControllerAnimated:YES completion:nil];
[self setupCroppingTool:selectedImage];
}
this is the code,so how can i identify the selectedImage is screenshot or camera image
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingImage:(UIImage *)selectedImage editingInfo:(NSDictionary *)editInfo
This method picks the image from photo library. You cant compare a screenshot image with a normal image because both are UIImage.
May be help..
I think source property of UIImagePickerController help you.
Example.
UIImagePickerController *abc = [[UIImagePickerController alloc] init];;
abc.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
You can use one of this..
UIImagePickerControllerSourceTypePhotoLibrary
UIImagePickerControllerSourceTypeCamera
UIImagePickerControllerSourceTypeSavedPhotosAlbum
Look at the image metadata - date, keywords, geolocation... and compare that.
I want to get the timestamp when the image is captured in my application. Do we have any notification when the camera is clicked?
use UIImagePickerController delegate:
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
NSDictionary *metadataDictionary = (NSDictionary *)[info valueForKey:UIImagePickerControllerMediaMetadata];
// do something with the metadata
NSLog(#"meta : %# \n\n",metadataDictionary);
}
Thanks in advance.
I have created a custom toolbar on cameraOverlayView. One of the toolbar buttons will trigger the takeSnap method –
-(IBAction)takeSnap
{
NSLog(#"take snap called");
[self.picker takePicture];
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingImage:(UIImage *)img editingInfo:(NSDictionary *)editingInfo
{
UIImage *image = img;
NSLog(#"image : %#",image);
}
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker
{
NSLog(#"Did cancel called");
}
But it is not calling the delegate methods after capturing. The view continues to remain in capture mode. If any one know the reason please help me.
Its very likely that you haven't assigned a delegate properly.
I'm new to iPhone and I'm using this code to select an image from the iPhone library and show it in imageView. The library is showing images, but when I'm selecting the image, it doesn't appear in the image view..
- (void)viewDidLoad {
[super viewDidLoad];
UIImagePickerController * picker = [[UIImagePickerController alloc] init];
picker.delegate = self;
picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
[self presentModalViewController:picker animated:YES];
}
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
[picker dismissModalViewControllerAnimated:YES];
imageView.image = [info objectForKey:#"UIImagePickerControllerOriginalImage"];
}
Please can you tell me what's the problem with the code?
Try with:
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
UIImage *pickedImage = [info objectForKey:UIImagePickerControllerOriginalImage];
imageView.image = pickedImage;
[self dismissModalViewControllerAnimated:YES];
}
UIImagePickerControllerOriginalImage is a string constant that could be different from #"UIImagePickerControllerOriginalImage" string.
Then, it's safe and more clear to former set the image view, and latter to dismiss the modal view controller.
Pay attention that you should invoke dismissModalViewControllerAnimated: on self because you are dismissing the modal view controller "owned" by self.
Bye!
I fixed my issue of "grey box appearing instead of an image in UIImageView".
I forgot to make the Background color of the UIIMageView to be CLEAR COLOR. THe problem was solved by setting background color to clearColor.
Was using XIB and you should also check if anything is laid out wrong in Interface builder in case you are using interface builder to create UI.