UIActivityViewController Copy Ignores imageOrientation - ios

When I take a picture with the phone in Portrait mode, using a UIImagePickerController, the UIImage item that is returned has the top of the image facing left and an imageOrientation property of UIImageOrientationRight , // 90 deg CCW, which is as expected (I think).
When I share the image via a UIActivityViewController, all activities seem to behave correctly except for the Copy activity. When I paste the image into another application (for instance, Messages), the image seems to be ignoring the imageOrientation property.
Has anyone else seen this / found a workaround?
Updated with complete code: (project contains storyboard with a single button mapped to self.takeImageButton and - (IBAction)takeImageAndShare:(id)sender;)
#import "ViewController.h"
#interface ViewController () <UIImagePickerControllerDelegate,UINavigationControllerDelegate>
#property (weak, nonatomic) IBOutlet UIButton *takeImageButton;
#end
#implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (IBAction)takeImageAndShare:(id)sender {
UIImagePickerController *imagePicker = [[UIImagePickerController alloc] init];
imagePicker.delegate = self;
imagePicker.sourceType = UIImagePickerControllerSourceTypeCamera;
imagePicker.popoverPresentationController.sourceView = self.takeImageButton;
[self presentViewController:imagePicker animated:YES completion:nil];
}
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
UIImage *chosenImage = info[UIImagePickerControllerOriginalImage];
[picker dismissViewControllerAnimated:YES completion:NULL];
NSLog(#"Image Orientation: %li",chosenImage.imageOrientation);
// Now share the selected image
UIActivityViewController *activityViewController = [[UIActivityViewController alloc] initWithActivityItems:#[chosenImage] applicationActivities:nil];
activityViewController.modalPresentationStyle = UIModalPresentationPopover;
activityViewController.popoverPresentationController.sourceView = self.takeImageButton;
[self presentViewController:activityViewController animated:YES completion:nil];
}
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker;
{
[picker dismissViewControllerAnimated:YES completion:NULL];
}
#end
If you run this code, take a photo with the phone in Portrait (.imageOrientation is 3 = UIImageOrientationRight) and select share activities like Messages, Save Image, etc., the image orientation is correct. If you select the copy activity, the image that gets pasted elsewhere is rotated (top of the image is to the left).
Submitted as Radar 19456881. Complete project is available here.

By Default capture image orientation behavior is UIImageOrientationRight, sp you have to set capture image orientation is
[UIDevice currentDevice].orientation

Based on this post, I decided to create my own copy activity:
//
// PhotoActivityCopy.m
//
// Created by Jeff Vautin on 1/13/15.
// Copyright (c) 2015 Jeff Vautin. All rights reserved.
//
#import "PhotoActivityCopy.h"
#import "ImageKit.h"
#import MobileCoreServices;
#interface PhotoActivityCopy ()
#property (strong,nonatomic) NSData *imageJPEGData;
#end
#implementation PhotoActivityCopy
NSString *PhotoActivityCopyActivityType = #"com.me.uiactivitytype.copy";
NSString *PhotoActivityCopyActivityTitle = #"Copy";
+ (UIActivityCategory)activityCategory
{
return UIActivityCategoryAction;
}
- (NSString *)activityType
{
return PhotoActivityCopyActivityType;
}
- (NSString *)activityTitle
{
return PhotoActivityCopyActivityTitle;
}
- (UIImage *)activityImage
{
CGSize imageSize;
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPad) {
imageSize = CGSizeMake(76.0, 76.0);
} else {
imageSize = CGSizeMake(60.0, 60.0);
}
return [ImageKit imageOfIconCopyWithExportSize:imageSize];
}
- (BOOL)canPerformWithActivityItems:(NSArray *)activityItems
{
BOOL canPerform = NO;
if ([activityItems count] > 1) {
canPerform = NO;
} else if ([[activityItems firstObject] isKindOfClass:[UIImage class]]) {
canPerform = YES;
}
return canPerform;
}
- (void)prepareWithActivityItems:(NSArray *)activityItems
{
self.imageJPEGData = UIImageJPEGRepresentation(activityItems[0], 1.0);
}
- (void)performActivity
{
[[UIPasteboard generalPasteboard] setData:self.imageJPEGData forPasteboardType:(id)kUTTypeJPEG];
[self activityDidFinish:YES];
}
#end
And then I excluded the native copy activity:
PhotoActivityCopy *copyActivity = [[PhotoActivityCopy alloc] init];
UIActivityViewController *activityViewController = [[UIActivityViewController alloc] initWithActivityItems:#[chosenImage] applicationActivities:#[copyActivity]];
activityViewController.excludedActivityTypes = #[UIActivityTypeCopyToPasteboard];

Related

Objective C: How to fit the image inside the imageview

I am using the UIImagePickerController to select images for my app. But I am facing a issue with the aspect ratio of the selected images.The image is showing larger than its original size and the complete image is not shown.I have tried changing UIViewContentMode property to all possible values still no use.Can anyone guide me how to make it work in?
Here is the implementation of UIImagePickerController delegate
- (void)imagePickerController:(UIImagePickerController *)picker
didFinishPickingImage:(UIImage *)image
editingInfo:(NSDictionary *)editingInfo {
self.imageProfile.contentMode = UIViewContentModeScaleAspectFit;
self.imageProfile.image = image;
[picker dismissViewControllerAnimated:YES completion:nil];
}
Well as you are using autolayouts, first define an outlet with your image height constraint will called imageHeightConstraint and then modify your code with this one
- (void)imagePickerController:(UIImagePickerController *)picker
didFinishPickingImage:(UIImage *)image
editingInfo:(NSDictionary *)editingInfo {
float aspectRatio = image.size.height/image.size.width
self.imageProfile.contentMode = UIViewContentModeScaleAspectFit;
self.imageProfile.image = image;
[self.imageHeightConstraint setConstant: self.imageProfile.frame.size.width * aspectRatio];
[picker dismissViewControllerAnimated:YES completion:nil];
}
EDITED
this is my code
#import "ViewController.h"
#interface ViewController () <UINavigationControllerDelegate,UIImagePickerControllerDelegate>
#property (weak, nonatomic) IBOutlet UIImageView *imageProfile;
#property (weak, nonatomic) IBOutlet NSLayoutConstraint *imageConstraintHeigth;
#end
#implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
}
- (IBAction)selectImage:(id)sender {
UIImagePickerController *picker = [[UIImagePickerController alloc] init];
picker.delegate = self;
picker.allowsEditing = YES;
picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
[self presentViewController:picker animated:YES completion:NULL];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingImage:(UIImage *)image editingInfo:(nullable NSDictionary<NSString *,id> *)editingInfo{
float aspectRatio = image.size.height/image.size.width;
self.imageProfile.contentMode = UIViewContentModeScaleAspectFit;
self.imageProfile.image = image;
//this if you need adjust heigth according to width
[self.imageConstraintHeigth setConstant: self.imageProfile.frame.size.width * aspectRatio];
[picker dismissViewControllerAnimated:YES completion:nil];
}
#end
and this are my constraints
I hope this help, for me works just fine

how to combine overlay and camera image together in iOS?

I want to develop a application in which user can change there hair style. so i add a overlay in camera view by using following code files and try to combine both image.
Here is my ViewController.h file
#import <UIKit/UIKit.h>
#interface ViewController : UIViewController<UIImagePickerControllerDelegate, UINavigationControllerDelegate, UIPopoverControllerDelegate>{
UIImagePickerController *imagePicker;
UIPopoverController *popoverController;
NSData *imageData;
}
#property (weak, nonatomic) IBOutlet UIImageView *imageView;
#end
and ViewController.m file
#import "ViewController.h"
#interface ViewController ()
#end
#implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
// assign action to button
UIButton *myButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];
myButton.frame = CGRectMake(0, 0, 200, 60);
myButton.center = self.view.center;
[myButton addTarget:self action:#selector(buttonPress:) forControlEvents:UIControlEventTouchUpInside];
[myButton setTitle:#"Image Picker" forState:UIControlStateNormal];
[self.view addSubview:myButton];
}
- (void)buttonPress:(id)sender {
if (![UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {
// alert the user that the camera can't be accessed
UIAlertView *noCameraAlert = [[UIAlertView alloc] initWithTitle:#"No Camera" message:#"Unable to access the camera!" delegate:nil cancelButtonTitle:#"Dismiss" otherButtonTitles:nil, nil];
[noCameraAlert show];
} else {
// prepare imagePicker view
imagePicker = [[UIImagePickerController alloc] init];
imagePicker.sourceType = UIImagePickerControllerSourceTypeCamera;
imagePicker.cameraDevice = UIImagePickerControllerCameraDeviceFront;
imagePicker.delegate = self;
imagePicker.cameraCaptureMode = UIImagePickerControllerCameraCaptureModePhoto;
imagePicker.navigationBarHidden = YES;
imagePicker.toolbarHidden = YES;
imagePicker.extendedLayoutIncludesOpaqueBars = YES;
// create view for overlay
CGRect overlayRect = CGRectMake(0, 0, imagePicker.view.frame.size.width, imagePicker.view.frame.size.height-50);
UIView *overlayView = [[UIView alloc] initWithFrame:overlayRect];
// prepare the image to overlay
UIImageView *overlayImage = [[UIImageView alloc] initWithImage:[UIImage imageNamed:#"wig"]];
overlayImage.center = overlayView.center;
//overlayImage.alpha = 0.5;
[overlayView addSubview:overlayImage];
// add the image as the overlay
[imagePicker setCameraOverlayView:overlayView];
// display imagePicker
[self.navigationController presentViewController:imagePicker animated:YES completion:nil];
}
}
#pragma mark - UIBarButton Selectors
- (void)takePictureButtonPressed:(id)sender {
NSLog(#"takePictureButtonPressed...");
// TODO: take picture!
[self presentViewController:imagePicker animated:YES
completion:^ {
[imagePicker takePicture];
}];
}
- (void)startStopButtonPressed:(id)sender {
NSLog(#"startStopButtonPressed...");
// TODO: make this do something
}
- (void)timedButtonPressed:(id)sender {
NSLog(#"timedButtonPressed...");
// TODO: implement timer before calling takePictureButtonPressed
}
- (void)cancelButtonPressed:(id)sender {
NSLog(#"cancelButtonPressed");
[self.navigationController dismissViewControllerAnimated:YES completion:nil];
}
#pragma mark - UIImagePickerController Delegate Methods
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)editingInfo {
[picker dismissViewControllerAnimated:YES completion:NULL];
[popoverController dismissPopoverAnimated: YES];
NSData *image1 = UIImageJPEGRepresentation([editingInfo valueForKey:UIImagePickerControllerOriginalImage],1.0);
UIImage *Imgg = [self addOverlayToBaseImage:[editingInfo valueForKey:UIImagePickerControllerOriginalImage]];
image1 = UIImageJPEGRepresentation(Imgg,1.0);
imageData = image1;
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *imagePath =[documentsDirectory stringByAppendingPathComponent:[NSString stringWithFormat:#"%#.png",#"cached"]];
NSLog((#"pre writing to file"));
if (![imageData writeToFile:imagePath atomically:NO])
{
NSLog((#"Failed to cache image data to disk"));
}
else
{
[[NSUserDefaults standardUserDefaults] setValue:imagePath forKey:#"imagePath"];
NSLog(#"the cachedImagedPath is %#",imagePath);
}
[self.imageView setImage:Imgg];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (UIImage*)addOverlayToBaseImage:(UIImage*)baseImage{
UIImage *overlayImage = [UIImage imageNamed:#"wig.png"];
CGPoint topCorner = CGPointMake(0, 0);
CGSize targetSize = CGSizeMake(self.view.frame.size.width, self.view.frame.size.height);
CGRect scaledRect = CGRectZero;
CGFloat scaledX = self.view.frame.size.height * baseImage.size.width / baseImage.size.height;
CGFloat offsetX = (scaledX - self.view.frame.size.width) / -2;
scaledRect.origin = CGPointMake(offsetX, 0.0);
scaledRect.size.width = scaledX;
scaledRect.size.height = self.view.frame.size.height;
UIGraphicsBeginImageContext(targetSize);
[baseImage drawInRect:scaledRect];
[overlayImage drawAtPoint:topCorner];
UIImage* result = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return result;
}
#end
This code combine both image but i want the exact same image which user can see in camera preview. My problem is when i capture image and see image in UIImageview its totally different from camera preview.
Camera Preview Image
What i get
Help me to get same image like Camera preview.
I was also facing the same issue. I have fixed this issue here you can find my complete git repo
Camera Preview Image
What i get

How to select Multiselection images in ios

I am making an app for iPhone and want to give users the ability to multi-select images from their photo-library. I already have a working code for user to select four images at a time.But i cant select 2 or 3 images at a time.I want to select the 2 or 3 images at a time.I am trying to the following code.please help me anybody.
- (id)initImagePicker
{
ELCAlbumPickerController *albumPicker = [[ELCAlbumPickerController alloc] initWithStyle:UITableViewStylePlain];
self = [super initWithRootViewController:albumPicker];
if (self)
{
self.maximumImagesCount = 4;
[albumPicker setParent:self];
}
else if (self)
{
self.minimumImageCount=1;
[albumPicker setParent:self];
}
return self;
}
- (id)initWithRootViewController:(UIViewController *)rootViewController
{
self = [super initWithRootViewController:rootViewController];
if (self)
self.maximumImagesCount = 4;
else if (self)
self.minimumImageCount=1;
return self;
}
-(void)choosePhotoFromExistingImages
{
ELCImagePickerController *elcPicker = [[ELCImagePickerController alloc] initImagePicker];
elcPicker.maximumImagesCount = 4;
elcPicker.returnsOriginalImage = NO; //Only return the fullScreenImage, not the fullResolutionImage
elcPicker.imagePickerDelegate = self;
[self presentViewController:elcPicker animated:YES completion:nil];
}
You should try MWPhotoBrowser Control by Michael Waterfall
He has provided single as well as multiple photo selection
Works on iOS 5.1.1+.
All strings are localisable so they can be used in apps that support multiple languages.
In one of my project i've done this thing without ELCImagePickerController. And successfully working that code too. In that project I've added a done button on the navigation bar of image picker controller. Whenever you select a image that image you can grab with in the method called
-(void)imagePickerController:(UIImagePickerController *)pickerdidFinishPickingMediaWithInfo:(NSDictionary *)info
Whenever you are finished with picking you images then you press that done button.with in that method dismiss the view controller.
Using this process you can select and fetch as much as image you want to have.
And my app is working successfully.
Cheers....!!!!!!!
Add done button on the navigation bar of uiimagepickercontroller
- (void)navigationController:(UINavigationController *)navigationController
willShowViewController:(UIViewController *)viewController
animated:(BOOL)animated
{
if (!doneButton)
{
doneButton = [[UIBarButtonItem alloc] initWithTitle:#"Done"
style:UIBarButtonItemStyleDone
target:self action:#selector(saveImagesDone:)];
}
viewController.navigationItem.rightBarButtonItem = doneButton;
}
First display the image picker using UIImagePickerController
Grab your images
-(void)imagePickerController:(UIImagePickerController *)picker
didFinishPickingMediaWithInfo:(NSDictionary *)info
{
NSString *mediaType = [info objectForKey:UIImagePickerControllerMediaType];
if ([mediaType isEqualToString:#"public.image"]
{
UIImage *image = [info objectForKey:UIImagePickerControllerOriginalImage];
// Get the data for the image
NSData* imageData = UIImageJPEGRepresentation(image, 1.0);
NSArray* paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString* documentsDirectory = [paths objectAtIndex:0];
// Now we get the full path to the file
NSString* fullPathToFile2 = [self createName:documentsDirectory];
// and then we write it out
[imageData writeToFile:fullPathToFile2 atomically:NO];
}
else
{
// Show Alert
}
}
Close The image picker view controller
-(IBAction)saveImagesDone:(id)sender
{
[self dismissViewControllerAnimated:YES completion:nil];
[self loadimages]; // Load your Images
}
every time you click over an image ,
-(void)imagePickerController:(UIImagePickerController *)pickerdidFinishPickingMediaWithInfo:(NSDictionary *)
info this method will grab the image for you.
Don't forgot to upvote... Cheers....!!!!!
you need to implement these methods
- (void)elcImagePickerController:(ELCImagePickerController *)picker didFinishPickingMediaWithInfo:(NSArray *)info;
it will return you array of your image selected.(the controller sends back an array of similarly structured dictionaries)
- (void)elcImagePickerControllerDidCancel:(ELCImagePickerController *)picker;
Try this:
-(id)initImagePicker{
ELCAlbumPickerController *albumPicker = [[ELCAlbumPickerController alloc] initWithStyle:UITableViewStylePlain];
self = [super initWithRootViewController:albumPicker];
if (self) {
self.maximumImagesCount = 4;
self.returnsImage = YES;
self.returnsOriginalImage = YES;
[albumPicker setParent:self];
self.mediaTypes = #[(NSString *)kUTTypeImage, (NSString *)kUTTypeMovie];
}
return self;
}
-(id)initWithRootViewController:(UIViewController *)rootViewController
{
self = [super initWithRootViewController:rootViewController];
if (self) {
self.maximumImagesCount = 4;
self.returnsImage = YES;
}
return self;
}
-(void)choosePhotoFromExistingImages
{
ELCImagePickerController *elcPicker = [[ELCImagePickerController alloc] initImagePicker];
elcPicker.maximumImagesCount = 4;
elcPicker.returnsOriginalImage = NO; //Only return the fullScreenImage, not the fullResolutionImage
elcPicker.imagePickerDelegate = self;
[self presentViewController:elcPicker animated:YES completion:nil];
}

Take two images within Camera App

im pretty newish to this kind of coding but have learnt a fair bit and have unfortunately hit a bump in an app im working on.
I am trying to create a camera application that will allow the user to take a 'before' image, then take an 'after' image, I would then like the option for the images to be put together (left and right) and saved as one image.
So far I have managed to code the app to take a single picture with the code below:
HEADER:
#import <UIKit/UIKit.h>
#interface ViewController : UIViewController <UIImagePickerControllerDelegate, UINavigationControllerDelegate>
#property (strong, nonatomic) IBOutlet UIImageView *beforeImage;
- (IBAction)cameraBeforeImage:(UIButton *)sender;
- (IBAction)libraryBeforeImage:(UIButton *)sender;
- (IBAction)deleteBeforeImage:(UIButton *)sender;
#property (strong, nonatomic) IBOutlet UIImageView *afterImage;
- (IBAction)cameraAfterImage:(UIButton *)sender;
- (IBAction)libraryAfterImage:(UIButton *)sender;
- (IBAction)deleteAfterImage:(UIButton *)sender;
- (IBAction)saveImages:(UIButton *)sender;
#end
IMPLEMENTATION:
#import "ViewController.h"
#interface ViewController ()
#end
#implementation ViewController
- (void)viewDidLoad
{
[super viewDidLoad];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (IBAction)cameraBeforeImage:(UIButton *)sender {
if (![UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {
UIAlertView *myAlertView = [[UIAlertView alloc] initWithTitle:#"Oops!"
message:#"This Device Has No Camera, Please Select An Image From Your Library."
delegate:nil
cancelButtonTitle:#"OK"
otherButtonTitles: nil];
[myAlertView show];
}else{
UIImagePickerController *picker = [[UIImagePickerController alloc] init];
picker.delegate = self;
picker.allowsEditing = YES;
picker.sourceType = UIImagePickerControllerSourceTypeCamera;
[self presentViewController:picker animated:YES completion:NULL];
}
}
- (IBAction)libraryBeforeImage:(UIButton *)sender {
UIImagePickerController *picker = [[UIImagePickerController alloc] init];
picker.delegate = self;
picker.allowsEditing = YES;
picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
[self presentViewController:picker animated:YES completion:NULL];
}
- (IBAction)deleteAfterImage:(UIButton *)sender {
}
- (IBAction)saveImages:(UIButton *)sender {
}
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
UIImage *chosenImage = info[UIImagePickerControllerEditedImage];
self.beforeImage.image = chosenImage;
[picker dismissViewControllerAnimated:YES completion:NULL];
}
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker {
[picker dismissViewControllerAnimated:YES completion:NULL];
}
- (IBAction)deleteBeforeImage:(UIButton *)sender {
}
- (IBAction)cameraAfterImage:(UIButton *)sender {
}
- (IBAction)libraryAfterImage:(UIButton *)sender {
}
- (IBAction)saveImages:(UIButton *)sender {
}
#end
Here is the list of things I need to add, any help on any of them would be very much appreciated!
Add the same functionality to the 'After' buttons as the 'Before' but to store the image in the 'afterImage' Image view.
Add functionality to the 'saveImages' button to save the two taken images as one image stitched together.
Thank you all in advance!
1 . The first problem, I guess you question is 'How do you know which picture was taken and where to display it'?
Answer1: Create two UIImagePickerControllers as properties. Once imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info returns an image you can simply check which controller was it if( picker == afterPictureController){....
Answer2: Create a flag indicating whether the next taken picture will be an after or a before picture. It's not very flexible but it works.
2 . To stitch two images, you can create UIGraphicsBeginImageContext with size(image1Width+image2Width, MAX(image1Height, image2Height)) and draw image using the context. After that, you can get the stitched image from the context by calling UIGraphicsGetImageFromCurrentImageContext();

Restrict my project to portrait only leaving photo view's in landscape/portrait

I want my whole project to run in portrait mode only and only the view that's for viewing the photo's can turn on landscape same as if using the facebook (we view photo's they turn landscape also but other view's remains in portrait) i want to know that how it's done as i have a table view that has images that i get from the DB from the server and every particular data contains different number's of photo's so now i want that after the user select's the photo's they should open up fully and can be viewed in landscape and in portrait as well i did tried
I am working with ios6
- (BOOL)shouldAutorotate
{
return NO;
}
implementing in all the view's so that they can remain in portrait but still they turn in landscape how should i restrict it and please can any one tell me that in one of my class i have images in table view(loaded from the DB) and i have another class that open's up the selected photo from the table
My PhotoView.m class
- (void) tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
NSDictionary *dic = [photos objectAtIndex:indexPath.row];
NSLog(#" *** url is %#",[dic objectForKey:#"url"]);
[self.delegate showPhotoAtUrl:[dic objectForKey:#"url"]];
}
My PhotoViewController.h class
#import <UIKit/UIKit.h>
#interface PhotoViewController : UIViewController <UIScrollViewDelegate>
{
NSString *url;
UIButton *doneButton;
}
#property (nonatomic, retain) UIImageView *imageView;
- (id) initWithPhotoUrl:(NSString *)photoUrl;
#end
and PhotoViewController.m class
#import "PhotoViewController.h"
#interface PhotoViewController ()
#end
#implementation PhotoViewController
#synthesize imageView;
- (id) initWithPhotoUrl:(NSString *)photoUrl
{
self = [super init];
if(self) {
url = [photoUrl retain];
}
return self;
}
- (void)dealloc
{
[url release];
self.imageView = nil;
[doneButton release];
[super dealloc];
}
- (void)viewDidLoad
{
[super viewDidLoad];
self.view.backgroundColor = [UIColor blackColor];
UIActivityIndicatorView *spinner = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge];
spinner.tag = 1;
spinner.center = self.view.center;
[spinner startAnimating];
[self.view addSubview:spinner];
[spinner release];
[self performSelectorInBackground:#selector(loadPhotoData) withObject:nil];
doneButton = [[UIButton buttonWithType:UIButtonTypeRoundedRect] retain];
[doneButton addTarget:self action:#selector(doneTouched) forControlEvents:UIControlEventTouchUpInside];
[doneButton setTitle:#"done" forState:UIControlStateNormal];
[doneButton setBackgroundColor:[UIColor clearColor]];
doneButton.frame = CGRectMake(2, 2, 60, 30);
[self.view addSubview:doneButton];
}
- (void) viewWillAppear:(BOOL)animated
{
[super viewWillAppear:animated];
self.title = #"";
self.navigationController.navigationBarHidden = YES;
}
- (void) doneTouched
{
[self.navigationController popViewControllerAnimated:YES];
}
- (void) loadComplete:(NSData *)imageData
{
if(!imageData) return;
UIActivityIndicatorView *spinner = (UIActivityIndicatorView *)[self.view viewWithTag:1];
if(spinner) {
[spinner stopAnimating];
[spinner removeFromSuperview];
}
UIImage *img = [UIImage imageWithData:imageData];
float scale = MIN(self.view.frame.size.width/img.size.width, self.view.frame.size.height/img.size.height);
self.imageView = [[[UIImageView alloc] initWithImage:img] autorelease];
self.imageView.frame = CGRectMake(0, 0, self.imageView.image.size.width*scale, self.imageView.image.size.height*scale);
UIScrollView *scrollView = [[UIScrollView alloc] initWithFrame:self.view.bounds];
self.imageView.center = scrollView.center;
scrollView.delegate = self;
scrollView.contentSize = self.imageView.frame.size;
scrollView.minimumZoomScale = 1;
scrollView.maximumZoomScale = 2;
[scrollView addSubview:self.imageView];
[self.view addSubview:scrollView];
[scrollView release];
[self.view bringSubviewToFront:doneButton];
}
- (UIView *) viewForZoomingInScrollView:(UIScrollView *)scrollView
{
return self.imageView;
}
- (void) loadPhotoData
{
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
NSData *imageData = [NSData dataWithContentsOfURL:[NSURL URLWithString:url]];
[self performSelectorOnMainThread:#selector(loadComplete:) withObject:imageData waitUntilDone:NO];
[pool drain];
}
#end
and in the main class i have have this method that calls the PhotoViewController to load the selected photo
- (void) showPhotoAtUrl:(NSString *)url
{
PhotoViewController *vc = [[PhotoViewController alloc] initWithPhotoUrl:url];
[self.navigationController pushViewController:vc animated:YES];
[vc release];
}
Now my problem is how should i get the images after getting selected from the table to be open up in the same type of the view that open's up in FB app (open's the selected photo in portrait/landscape compatible view) i am only able to get one photo in my PhotoViewController class can any one tell me how can i add all the photo's to the PhotoViewController class so that i get the effect that i want ?... Any code help will be very helpful .. Thanks in Advance for contributing your time
In Short i have two things to do :
I have to restrict my project to only portrait mode leaving only the photo's view to have landscape/portrait compatibility.
I am currently having the photo's in my table view that i want on selection to open up in the same style(landscape/portrait compatibile) as FB or other app's do while viewing the photo's.
These only work on iOS 6.0
-(BOOL)shouldAutorotate
{
return YES;
}
-(NSUInteger)supportedInterfaceOrientations
{
return (UIInterfaceOrientationLandscapeRight | UIInterfaceOrientationLandscapeLeft);
}
- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
return UIInterfaceOrientationLandscapeRight;
}
The method will return which orientation mode to use first.
Below are supportedInterfaceOrientations:
UIInterfaceOrientationMaskPortrait
UIInterfaceOrientationMaskLandscapeLeft
UIInterfaceOrientationMaskLandscapeRight
UIInterfaceOrientationMaskPortraitUpsideDown
UIInterfaceOrientationMaskLandscape
UIInterfaceOrientationMaskAll
UIInterfaceOrientationMaskAllButUpsideDown
For iOS > 4.0
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
return UIInterfaceOrientationIsLandscape(interfaceOrientation);
}
Other ViewControllers will have
-(BOOL)shouldAutorotate { return NO; }
-(BOOL)shouldAutorotateToInterfaceOrientation:
(UIInterfaceOrientation)interfaceOrientation{
return NO;
}

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