Mail Composer Won't Launch From UIPreviewAction - ios

In the view controller for my Peek view of an app I have:
- (NSArray*)previewActionItems {
/
UIPreviewAction *action1 = [UIPreviewAction actionWithTitle:#"Post to Facebook" style:UIPreviewActionStyleDefault handler:^(UIPreviewAction * _Nonnull action, UIViewController * _Nonnull previewViewController) {
}];
UIPreviewAction *action2 = [UIPreviewAction actionWithTitle:#"Message" style:UIPreviewActionStyleDefault handler:^(UIPreviewAction * _Nonnull action, UIViewController * _Nonnull previewViewController) {
}];
UIPreviewAction *action3 = [UIPreviewAction actionWithTitle:#"Email" style:UIPreviewActionStyleDefault handler:^(UIPreviewAction * _Nonnull action, UIViewController * _Nonnull previewViewController) {
[self displayComposerSheet];
}];
/
NSArray *actions = #[action1, action2, action3];
/
return actions;
}
This successfully allows me to pull up a sheet of preview actions after a 3D Touch. displayComposerSheet is:
-(void)displayComposerSheet
{
NSLog(#"Mail Button Pressed");
MFMailComposeViewController *picker = [[MFMailComposeViewController alloc] init];
picker.mailComposeDelegate = self;
[picker setSubject:#"Check out this article from Fritch"];
/
NSArray *toRecipients = [NSArray arrayWithObject:#"friend#example.com"];
[picker setToRecipients:toRecipients];
/
NSString *emailBody = self.finalObject.articleImage;
[picker setMessageBody:emailBody isHTML:YES];
[self presentViewController:picker animated:YES completion:nil];
[picker release];
}
However, the mail composer never is presented. Please help.

The issue is probably that the view hierarchy is not normal when the Peek view is shown.
Try using the root view controller to present the picker:
[[UIApplication sharedApplication].delegate.window.rootViewController presentViewController:picker animated:YES completion:nil];

Related

collectionView not reloading in parentviewcontroller on removal of childviewcontroller

Any one know how to reload collectionView in parentViewController when removing childViewController.
Here, I am processing on click of button adding childViewController and on click of that childViewController I am getting data and that data will transferred to parentViewController after that child view get's remove from parentViewController.
I am getting data from childViewController, also reloading collection view.
dispatch_async(dispatch_get_main_queue(),^{
[self.view layoutIfNeeded];
[self.collectionViewcellItem layoutIfNeeded];
[self.collectionViewcellItem reloadData];
});
but, no effect of reloading here seen.
means not able to change parentviewconroller view after removal of childViewController.
Thank you
Waiting for the answer and yes I am doing it in objective c.
parentViewController file.
[self.view addSubview:filterMenuVC.view];
filterMenuVC.view.backgroundColor = [UIColor clearColor];
[self addChildViewController:filterMenuVC];
[self.view addSubview:filterMenuVC.view];
[self animationSideFilterMenuBarOpen];
[filterMenuVC didMoveToParentViewController:self];
childViewController file
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
NSLog(#"%#",[NSString stringWithFormat:#"%ld",(long)indexPath.row]);
// // [wel animationSideFilterMenuBarClose];
UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
int categoryId = (int)cell.textLabel.tag;
[self animationSideMainMenuBarClose:categoryId];
}
-(void)animationSideMainMenuBarClose:(int)categoryId{
CGFloat width = [UIScreen mainScreen].bounds.size.width;
self.view.frame = CGRectMake(width - self.view.frame.size.width, self.view.frame.origin.y, self.view.frame.size.width, self.view.frame.size.height);
[UIView animateWithDuration:0.5 animations:^{
self.view.frame = CGRectMake(width, self.view.frame.origin.y, self.view.frame.size.width, self.view.frame.size.height);
}
completion:^(BOOL finished){
[self.view removeFromSuperview];
self.view = nil;
NSLog(#"category id Filter: %d",categoryId);
BOOL boolresponse = [wel getUserWork:categoryId];
if (boolresponse == NO) {
UIAlertController * alert = [UIAlertController
alertControllerWithTitle:#""
message:#"No internet connection"
preferredStyle:UIAlertControllerStyleAlert];
UIAlertAction *okButton = [UIAlertAction
actionWithTitle:#"OK"
style:UIAlertActionStyleDefault
handler:^(UIAlertAction * action) {
}];
[alert addAction:okButton];
[self presentViewController:alert animated:YES completion:nil];
}
}];
}
here, BOOL boolresponse = [wel getUserWork:categoryId]; getUserWork is the function in parentViewController, I call that and removing the childViewController. get correct data but not able to reload collectionView.
parentViewFunction which I am calling.
-(BOOL)getUserWork:(int)catergoryId{
appDelegate = (AppDelegate *)[[UIApplication sharedApplication]delegate];
[self dismissViewControllerAnimated:true completion:^{
//do whatever you do here
[self.collectionViewcellItem reloadData];
}];
categoryIdStart = catergoryId;
Reachability *r = [[Reachability alloc]init];
if(r.currentReachabilityStatus != NotReachable) {
return NO;
}
else
{
[SVProgressHUD show];
[SVProgressHUD setStatus:#"Loading..."];
[SVProgressHUD setRingRadius:20];
[SVProgressHUD setRingThickness:10];
[SVProgressHUD setBorderColor:[UIColor orangeColor]];
[SVProgressHUD setBorderWidth:0.5];
[SVProgressHUD setForegroundColor:[UIColor orangeColor]];
NSLog(#"id category: %d",categoryIdStart);
NSDictionary *params = [[NSDictionary alloc] initWithObjectsAndKeys:[appDelegate.UserDic valueForKey:#"token"],#"token",[appDelegate.UserDic valueForKey:#"id"],#"id_user",[NSString stringWithFormat:#"%d",categoryIdStart],#"id_category",nil];
NSMutableArray *postArray = [NSMutableArray array];
[params enumerateKeysAndObjectsUsingBlock:^(NSString *key, NSString *obj, BOOL *stop) {
[postArray addObject:[NSString stringWithFormat:#"%#=%#", key, [apiCall percentEscapeString:obj]]];
}];
NSString *postString = [postArray componentsJoinedByString:#"&"];
[apiCall apiType:#"xyzzy" pD:postString dataRetrive:^(NSDictionary *dictionary){
int status = [[dictionary valueForKey:#"status"] intValue];
if (status == 0) {
[SVProgressHUD dismiss];
dispatch_async(dispatch_get_main_queue(),^{
UIAlertController * alert = [UIAlertController
alertControllerWithTitle:#""
message:[dictionary valueForKey:#"msg"]
preferredStyle:UIAlertControllerStyleAlert];
UIAlertAction *okButton = [UIAlertAction
actionWithTitle:#"OK"
style:UIAlertActionStyleDefault
handler:^(UIAlertAction * action) {
}];
[alert addAction:okButton];
[self presentViewController:alert animated:YES completion:nil];
});
}
else{
[SVProgressHUD dismiss];
[cacheImage removeAllObjects];
dic = [dictionary valueForKey:#"data"];
NSLog(#"Category detail: %# %lu",dic,(unsigned long)dic.count);
NSLog(#"image category %# :",[dic valueForKey:#"category_name"]);
dispatch_async(dispatch_get_main_queue(),^{
[self.view layoutIfNeeded];
[self.collectionViewcellItem layoutIfNeeded];
[self.collectionViewcellItem reloadData];
[self viewWillAppear:true];
});
}
}];
return YES;
}
}

Camera not presenting in ipad running iOS 8.2

I am working on universal app and want to open camera. Now I am able to open camera with UIimagePickerController on iphone but on iPad its not working. I have searched for solution and found this code
self.cameraController = [[UIImagePickerController alloc] init];
self.cameraController.sourceType = UIImagePickerControllerSourceTypeCamera;
self.cameraController.modalPresentationStyle = UIModalPresentationCurrentContext;
self.cameraController.showsCameraControls = NO;
self.cameraController.navigationBarHidden = YES;
self.cameraController.wantsFullScreenLayout = NO;
[self.cameraController setCameraOverlayView:ar_overlayView];
[ar_overlayView setFrame:self.cameraController.view.bounds];
UIViewController *vc = [[[[UIApplication sharedApplication] delegate] window] rootViewController];
if([[[UIDevice currentDevice] systemVersion] floatValue]>=8.0 && UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)
{
[[NSOperationQueue mainQueue] addOperationWithBlock:^{
[self presentViewController:self.cameraController animated:YES completion:nil];
}];
}
else{
[vc presentViewController:self.cameraController animated:YES completion:nil];
}
Also followed some tutorial like
TechnoTopia Post but didn't find any luck.I have tested it in iphone 5s and is working fine in it but on iPad mini the camera is not presenting. Any help would be appreciated!
Try This For iPad
-(void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex
{
if (buttonIndex==0)
{
[[NSOperationQueue mainQueue] addOperationWithBlock:^{
UIImagePickerController* picker=[[UIImagePickerController alloc]init];
picker.delegate=self;
picker.allowsEditing=YES;
picker.sourceType=UIImagePickerControllerSourceTypePhotoLibrary;
[self presentViewController:picker animated:YES completion:nil];
}];
}
else if (buttonIndex==1)
{
[[NSOperationQueue mainQueue] addOperationWithBlock:^{
UIImagePickerController* picker=[[UIImagePickerController alloc]init];
picker.delegate=self;
picker.allowsEditing=YES;
picker.sourceType=UIImagePickerControllerSourceTypeCamera;
[self presentViewController:picker animated:YES completion:nil];}];
}
}
For iPad you should do:
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPad) {
UIPopoverController *popover = [[UIPopoverController alloc] initWithContentViewController:picker];
[popover presentPopoverFromRect:self.selectedImageView.bounds inView:self.selectedImageView permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];
self.popOver = popover;
}else {
[self presentModalViewController:picker animated:YES];
}
where in .h file declare:
#property (nonatomic, strong) UIPopoverController *popOver;
You should handle popover delegate:
-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
-(void)imagePickerControllerDidCancel:(UIImagePickerController *)picker
Apple docs:
apple link
it states that:
"Present the user interface by calling the presentViewController:animated:completion: method of the currently active view controller, passing your configured image picker controller as the new view controller. On iPad, present the user interface using a popover. Doing so is valid only if the sourceType property of the image picker controller is set to UIImagePickerControllerSourceTypeCamera."
try this code :
UIImagePickerController *aImgPickerController = [[UIImagePickerController alloc] init];
aImgPickerController.delegate = self;
aImgPickerController.allowsEditing = YES;
aImgPickerController.sourceType = UIImagePickerControllerSourceTypeCamera;
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.2 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
[self presentViewController:aImgPickerController animated:NO completion:^{
NSLog(#"success present picker");
}];
});
- (IBAction)onClickSelectPicture:(id)sender
{
if( [UIImagePickerController isCameraDeviceAvailable: UIImagePickerControllerCameraDeviceFront ])
{
UIImagePickerController *picker = [[UIImagePickerController alloc] init];
picker.delegate = self;
picker.allowsEditing = YES;
picker.sourceType=UIImagePickerControllerSourceTypeCamera;
picker.cameraDevice=UIImagePickerControllerCameraDeviceFront;
[self presentViewController:picker animated:YES completion:NULL];
}
else
{
UIAlertView *myAlertView = [[UIAlertView alloc] initWithTitle:#"Error"
message:#"Device has no camera"
delegate:nil
cancelButtonTitle:#"OK"
otherButtonTitles: nil];
[myAlertView show];
}
}
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
imgProf = info[UIImagePickerControllerEditedImage];
[viewNewPhoto setImage:imgProf];
imgProf = [self imageWithImage:imgProf scaledToSize:CGSizeMake(imgProf.size.width/4, imgProf.size.height/4)];
if (imgProf == nil)
{
imgPhotoString = #"NoPhoto";
}else
{
imgPhotoString = [self getStringFromImage:imgProf];
}
[picker dismissViewControllerAnimated:YES completion:NULL];
}
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker
{
[picker dismissViewControllerAnimated:YES completion:NULL];
}

UIImagePickerController not presenting in iOS 8

Is anyone else having an issue with UIImagePickerController in iOS 8? The method below works perfectly well in iOS 7 on an iPad, but I get the following error when I run this in XCode 6 (Beta 3 or 4) when I try to present the picker (last line). If it matters, the selection of the sourceType is coming from an alertView that is presented in the same place.
Warning: Attempt to present <UIImagePickerController: 0x7c0ae400> on <CAGUCreateContactViewController: 0x7bf61a00> which is already presenting (null)
Method to open imagePicker.
- (void)openPhotoPicker:(UIImagePickerControllerSourceType)sourceType
{
if ([UIImagePickerController isSourceTypeAvailable:sourceType]) {
NSArray *availableMediaTypes = [UIImagePickerController availableMediaTypesForSourceType:sourceType];
if ([availableMediaTypes containsObject:(NSString *)kUTTypeImage]) {
UIImagePickerController *imagePickerController = [[UIImagePickerController alloc] init];
imagePickerController.modalPresentationStyle = UIModalPresentationFullScreen;
imagePickerController.sourceType = sourceType;
imagePickerController.mediaTypes = #[(NSString *)kUTTypeImage];
imagePickerController.delegate = self;
self.imagePickerController = imagePickerController;
if (sourceType == UIImagePickerControllerSourceTypeCamera) {
[self presentViewController:self.imagePickerController animated:YES completion:nil];
} else {
if (self.popoverVC) {
[self.popoverVC dismissPopoverAnimated:YES];
self.popoverVC = nil;
}
self.popoverVC = [[UIPopoverController alloc] initWithContentViewController:imagePickerController];
[self.popoverVC presentPopoverFromRect:self.nameAndPicCell.picture.frame inView:self.view permittedArrowDirections:UIPopoverArrowDirectionUp animated:YES];
}
}
}
}
I think this is because in iOS 8, alert views and action sheets are actually presented view controllers (UIAlertController). So, if you're presenting a new view controller in response to an action from the UIAlertView, it's being presented while the UIAlertController is being dismissed. I worked around this by delaying the presentation of the UIImagePickerController until the next iteration of the runloop, by doing this:
[[NSOperationQueue mainQueue] addOperationWithBlock:^{
[self openPhotoPicker:sourceType];
}];
However, the proper way to fix this is to use the new UIAlertController API on iOS 8 (i.e. use if ([UIAlertController class]) ... to test for it). This is just a workaround if you can't use the new API yet.
I agree with Ben Lings issue detection. I would suggest a simpler solution in case when using UIActionSheet. I simply moved my code that reacts on Action Sheet selection from:
- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex;
{
// my code
}
into:
- (void)actionSheet:(UIActionSheet *)actionSheet didDismissWithButtonIndex:(NSInteger)buttonIndex; // after animation
{
// my code
}
This way app is guarantied that code will be executed AFTER UIActionSheet animation finishes.
Since UIAlertView has similar delegate method:
- (void)alertView:(UIAlertView *)alertView didDismissWithButtonIndex:(NSInteger)buttonIndex; // after animation
{
// my code
}
I suppose that similar solution may apply.
Here is a solution that worked for me
if([[[UIDevice currentDevice] systemVersion] floatValue]>=8.0)
{
[[NSOperationQueue mainQueue] addOperationWithBlock:^{
[self presentViewController:cameraUI animated:NO completion:nil];
}];
}
else{
[controller presentViewController:cameraUI animated:NO completion:nil];
}
Remember to alloc cameraUI
UIImagePickerController *cameraUI = [[UIImagePickerController alloc] init];
cameraUI.sourceType = UIImagePickerControllerSourceTypeCamera;
Build and Go!
I was facing the same problem in iOS 8.
Then I saw the change log of the latest update to iOS i.e. 8.0.2 on the device.
It is mentioned in this update that_
"Fixes an issue that prevented some apps from accessing photos from Photo Library"
So test your app using XCode 6 on device with iOS 8.0.2 version it will work fine
Don't test it on iOS 8.0 simulator.
This helped me, hope the same for you.
UIImagePickerController *imagePickerController= [[UIImagePickerController alloc] init];
[imagePickerController setSourceType:UIImagePickerControllerSourceTypePhotoLibrary];
// image picker needs a delegate so we can respond to its messages
[imagePickerController setDelegate:self];
self.shouldCallViewWillAppear = NO;
if(IS_IOS8)
{
[[NSOperationQueue mainQueue] addOperationWithBlock:^{
// Place image picker on the screen
[self presentViewController:imagePickerController animated:YES completion:nil];
}];
}
else
{
[self presentViewController:imagePickerController animated:YES completion:nil];
}
You can dismiss the presented view controller (if any) by using
[self.presentedViewController dismissViewControllerAnimated:YES completion:nil];
This worked for me.
All you need to do is dismiss already presented ViewController:
if (self.presentedViewController) {
[self.presentedViewController dismissViewControllerAnimated:YES completion:nil];
}
[self openPhotoPicker:sourceType];
If it still produces error, put openPhotoPicker: to completion handler
I simply did this:
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_BACKGROUND,
(unsigned long)NULL), ^(void) {
[self retractActivePopover];
dispatch_async(dispatch_get_main_queue(), ^ {
_activePopover=imagePickerPopover;
UIBarButtonItem *callingButton = (UIBarButtonItem*) sender;
[imagePickerPopover presentPopoverFromBarButtonItem:callingButton permittedArrowDirections:UIPopoverArrowDirectionUp animated:YES];
});
});
On iOS 8 you should use the new API:
if (SYSTEM_VERSION_IOS_8) {
self.imagePickerController.modalPresentationStyle = UIModalPresentationPopover;
UIPopoverPresentationController *popPC = self.imagePickerController.popoverPresentationController;
popPC.barButtonItem = self.popoverItem;
popPC.permittedArrowDirections = UIPopoverArrowDirectionAny;
[self presentViewController:self.imagePickerController animated:YES completion:nil]
}
I recommend you watch the 2014 WWDC session 228 a look in side presentation controllers
I went through a lot of pain coming up with a solution which works on both iPad and iPhone, this is the final code which some of it comes from comments of other people:
the code has some bugs but it's a very good place to start :)
definitions :
__weak IBOutlet UIButton *attachButton;
UIImage *image;
button's action :
- (IBAction)doAttach:(id)sender {
UIActionSheet *action = [[UIActionSheet alloc] initWithTitle:#"Select image from" delegate:self cancelButtonTitle:#"Cancel" destructiveButtonTitle:nil otherButtonTitles:#"From library",#"From camera", nil] ;
[action showInView:self.view];
}
#pragma mark - ActionSheet delegates
- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex
{
if( buttonIndex == 1 ) {
AVAuthorizationStatus authStatus = [AVCaptureDevice authorizationStatusForMediaType:AVMediaTypeVideo];
if(authStatus == AVAuthorizationStatusAuthorized)
{
NSLog(#"%#", #"You have camera access");
}
else if(authStatus == AVAuthorizationStatusDenied)
{
NSLog(#"%#", #"Denied camera access");
[AVCaptureDevice requestAccessForMediaType:AVMediaTypeVideo completionHandler:^(BOOL granted) {
if(granted){
NSLog(#"Granted access to %#", AVMediaTypeVideo);
} else {
[self.presentedViewController dismissViewControllerAnimated:YES completion:nil];
UIAlertController* alert = [UIAlertController alertControllerWithTitle:#“no camera access“
message: #“if you need to use camera in this application go to settings -> appName -> and turn on camera.”
preferredStyle:UIAlertControllerStyleAlert];
UIAlertAction* defaultAction = [UIAlertAction actionWithTitle:#“ok” style:UIAlertActionStyleDefault
handler:^(UIAlertAction * action) {
}];
[alert addAction:defaultAction];
[self presentViewController:alert animated:YES completion:nil];
NSLog(#"Not granted access to %#", AVMediaTypeVideo);
return ;
}
}];
}
else if(authStatus == AVAuthorizationStatusRestricted)
{
[self.presentedViewController dismissViewControllerAnimated:YES completion:nil];
UIAlertController* alert = [UIAlertController alertControllerWithTitle:#“no camera access“
message: #“if you need to use camera in this application go to settings -> appName -> and turn on camera.”
preferredStyle:UIAlertControllerStyleAlert];
UIAlertAction* defaultAction = [UIAlertAction actionWithTitle:#“ok” style:UIAlertActionStyleDefault
handler:^(UIAlertAction * action) {
}];
[alert addAction:defaultAction];
[self presentViewController:alert animated:YES completion:nil];
NSLog(#"%#", #"Restricted, normally won't happen");
}
else if(authStatus == AVAuthorizationStatusNotDetermined)
{
NSLog(#"%#", #"Camera access not determined. Ask for permission.");
[AVCaptureDevice requestAccessForMediaType:AVMediaTypeVideo completionHandler:^(BOOL granted) {
if(granted){
NSLog(#"Granted access to %#", AVMediaTypeVideo);
} else {
NSLog(#"Not granted access to %#", AVMediaTypeVideo);
return ;
}
}];
}
else
{
[self.presentedViewController dismissViewControllerAnimated:YES completion:nil];
UIAlertController* alert = [UIAlertController alertControllerWithTitle:#“No camera access“
message: #“error accusing camera”
preferredStyle:UIAlertControllerStyleAlert];
UIAlertAction* defaultAction = [UIAlertAction actionWithTitle:#“ok” style:UIAlertActionStyleDefault
handler:^(UIAlertAction * action) {
}];
[alert addAction:defaultAction];
[self presentViewController:alert animated:YES completion:nil];
return;
//NSLog(#"%#", #"Camera access unknown error.");
}
if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {
UIImagePickerController *pickerView =[[UIImagePickerController alloc]init];
pickerView.allowsEditing = YES;
pickerView.delegate = self;
pickerView.sourceType = UIImagePickerControllerSourceTypeCamera;
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPad) {
[ self.presentedViewController dismissViewControllerAnimated:YES completion:nil ];
pickerView.modalPresentationStyle = UIModalPresentationPopover;
UIPopoverPresentationController *popPC = pickerView.popoverPresentationController;
popPC.sourceView = attachButton;
popPC.permittedArrowDirections = UIPopoverArrowDirectionAny;
[self presentViewController:pickerView animated:YES completion:nil];
} else {
[self presentModalViewController:pickerView animated:YES ];
}
}
}else if( buttonIndex == 0 ) {
ALAuthorizationStatus status = [ALAssetsLibrary authorizationStatus];
switch (status) {
case ALAuthorizationStatusRestricted:
case ALAuthorizationStatusDenied:
{
[self.presentedViewController dismissViewControllerAnimated:YES completion:nil];
UIAlertController* alert = [UIAlertController alertControllerWithTitle:#“no access to library”
message: #“if you wish to access photos in this app go to settings -> appName-> and turn on photos .”
preferredStyle:UIAlertControllerStyleAlert];
UIAlertAction* defaultAction = [UIAlertAction actionWithTitle:#“ok” style:UIAlertActionStyleDefault
handler:^(UIAlertAction * action) {
}];
[alert addAction:defaultAction];
[self presentViewController:alert animated:YES completion:nil];
}
break;
default:
{
UIImagePickerController *pickerView = [[UIImagePickerController alloc] init];
pickerView.allowsEditing = YES;
pickerView.delegate = self;
[pickerView setSourceType:UIImagePickerControllerSourceTypePhotoLibrary];
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPad) {
[ self.presentedViewController dismissViewControllerAnimated:YES completion:nil ];
pickerView.modalPresentationStyle = UIModalPresentationPopover;
UIPopoverPresentationController *popup = pickerView.popoverPresentationController;
popup.sourceView = attachButton;
popup.permittedArrowDirections = UIPopoverArrowDirectionAny;
[self presentViewController:pickerView animated:YES completion:nil];
} else {
[self presentModalViewController:pickerView animated:YES ];
}
}
break;
}
}
}
#pragma mark - PickerDelegates
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info{
[self dismissModalViewControllerAnimated:true];
UIImage * img = [info valueForKey:UIImagePickerControllerEditedImage];
image = img;
}
performSelector:withObject:afterDelay solved my problem.
also didDismissWithButtonIndex do the trick.
Max
Here's a Xamarin solution. What worked for me was to add my actions to a Dismissed event handler.
this.btnPhoto.TouchUpInside += (sender, e) =>
{
actionSheet = new UIActionSheet ("Add Photo");
actionSheet.AddButton ("Take Photo");
actionSheet.AddButton ("Select from Library");
actionSheet.AddButton ("Cancel");
actionSheet.DestructiveButtonIndex = -1; // red
actionSheet.CancelButtonIndex = 3; // black
actionSheet.Clicked += delegate(object a, UIButtonEventArgs b)
{
actionSheet.Dismissed += (object aSender, UIButtonEventArgs dismissArgs) =>
{
switch (dismissArgs.ButtonIndex)
{
case 0:
showCamera ();
break;
case 1:
showPhotoLibrary ();
break;
}
};
};
actionSheet.ShowInView (view);
};

Console warning: Attempt to dismiss from view controller while a presentation or dismiss is in progress

"Warning: Attempt to dismiss from view controller while a presentation or dismiss is in progress!"
I'm trying to have my app go to a loading screen upon selecting a picture to upload. This works by, upon selecting a picture, removing the UIImagePickerController scene, adding the Loading scene, and once the upload is complete, removing the Loading scene.
-(void)uploadMessage{
[self dismissViewControllerAnimated:NO completion:nil];
LoadingViewController *loadView = [[LoadingViewController alloc]initWithNibName:#"LoadView" bundle:nil];
[self presentViewController:loadView animated:NO completion:^{
NSData *fileData;
NSString *fileName;
NSLog(#"Image");
fileData = UIImagePNGRepresentation(self.image);
fileName = #"image.png";
PFFile *file = [PFFile fileWithName:fileName data:fileData];
[self.game setObject:file forKey:#"picture"];
[self.game saveInBackgroundWithBlock:^(BOOL succeeded, NSError *error) {
if(succeeded){
[self removeAndChangeButtons];
[self dismissViewControllerAnimated:NO completion:nil];
}
}];
}];
}
You can add a function using MBProgressHUD.
- (void) showMessage:(NSString*)message withTitle:(NSString*)title onView:(UIView*)view removeAfter:(NSTimeInterval)delay{
dispatch_async(dispatch_get_main_queue(), ^{
MBProgressHUD *hud = [MBProgressHUD showHUDAddedTo:view animated:YES];
// Configure for text only and offset down
hud.mode = MBProgressHUDModeText;
hud.labelText = title;
hud.detailsLabelText = message;
hud.margin = 10.f;
hud.yOffset = 0.0f;
hud.removeFromSuperViewOnHide = YES;
[hud hide:YES afterDelay:delay];
});
}
Then in your code when you start the background task, call showMessage and then the upload is done, remove it.
You are dismissing the ViewController twice in your method if it is successful. Obviously, this can't be done. I don't know what exactly what you're trying to achieve, but I think removing the first [self dismissViewControllerAnimated:NO completion:nil] would do the trick.

How to use MFMailComposerViewController on iOS 7?

I am developing an app for iOS 7 and used MFMailComposerViewController.
I have tried everything but dismissViewController:withAnimated is not working.
sometimes class automatically call delegate by itself when it first displays viewController using method presentViewCOntroller:withAnimated:completion.
My app is navigation based that's why I think issue is just related with UINavigationController as well.
-(void)sendMail{
if ([MFMailComposeViewController canSendMail]) {
MFMailComposeViewController *picker = [[MFMailComposeViewController alloc] init];
picker.mailComposeDelegate = self;
[picker setSubject:#"Hello from California!"];
// Set up recipients
NSArray *toRecipients = [NSArray arrayWithObject:#"first#example.com"];
NSArray *ccRecipients = [NSArray arrayWithObjects:#"second#example.com", #"third#example.com", nil];
NSArray *bccRecipients = [NSArray arrayWithObject:#"fourth#example.com"];
[picker setToRecipients:toRecipients];
[picker setCcRecipients:ccRecipients];
[picker setBccRecipients:bccRecipients];
// Fill out the email body text
NSMutableString *emailBody =[NSMutableString stringWithString: #"<table border=1 align=\"center\"><tr><th>EventDate</th><th>EventDay</th><th>EventTime</th><th>Speaker</th><th>topic</th></tr>"];
for (int i=0; i<5; i++) {
NSString *eventDate=[NSString stringWithFormat:#"<tr><td>%#</td>",#"12/11"];
NSString *eventDay=[NSString stringWithFormat:#"<td>%#</td>",#"Sunday"];
NSString *eventTime=[NSString stringWithFormat:#"<td>%#</td>",#"12:10 pm"];
NSString *eventSpeaker=[NSString stringWithFormat:#"<td>%#</td>",#"RajVeer"];
NSString *eventTopic=[NSString stringWithFormat:#"<td>%#</td>",#"nano-technology"];
NSString *dataString=[NSString stringWithFormat:#"%#%#%#%#%#</tr>",eventDate,eventDay,eventTime,eventSpeaker,eventTopic];
[emailBody appendString:dataString];
}
NSString *lastTable=#"</table>";
[emailBody appendString:lastTable];
NSLog(#"%#",emailBody);
[picker setMessageBody:emailBody isHTML:YES];
[self presentViewController:picker animated:YES completion:NULL];
}
This should do the trick:
#pragma mark MFMailComposeViewControllerDelegate
- (void)mailComposeController:(MFMailComposeViewController *)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError *)error {
[controller dismissViewControllerAnimated:YES completion:nil];
}
Use this code to present MFMailComposeViewController
[self presentViewController:mailComposerObject animated:YES completion:NULL];
For dismiss MFMailComposeViewController
#pragma mark - MFMailComposeViewControllerDelegate
-(void)mailComposeController:(MFMailComposeViewController*)controller didFinishWithResult: (MFMailComposeResult)result error:(NSError*)error {
[self dismissViewControllerAnimated:YES completion:NULL];
}
from iOS 6.0 [self presentModalViewController:<#(UIViewController *)#> animated:<#(BOOL)#>] is deprecated.

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