UIActivityViewController not passing new line characters to some activities - ios

Question

I am using the following code to set up UIActivityViewController:
NSArray *activityItems = [NSArray arrayWithObjects:[self textMessageToShare], nil];
UIActivityViewController *activityViewController = [[UIActivityViewController alloc] initWithActivityItems:activityItems applicationActivities:nil];
[activityViewController setCompletionHandler:^(NSString *activityType, BOOL completed) {
if (completed) {
[self sendFeedbackWithIndexPath:indexPath AndLikeType:100 AndCell:nil];
}
}];
[self.navigationController presentViewController:activityViewController
animated:YES
completion:^{
// ...
}];
Issue is that when I copy a message or post to facebook or twitter or email or gmail app or to default Messages app, the new line characters that are in [self textMessageToShare] are maintained. However, if I share to other activities like WhatsApp or Viber - all the new line characters are removed, and the whole message is sent as one single line.
Whereas, if I share just text through iOS default Notes app, new line characters are maintained when shared to these apps. How would the Notes app be storing the new line characters? I am using \n as the new line character.
For my life unable to even find the reason. Can anyone help?

Answer 1

I was able to make it work by converting the newline characters to "<br/>":
_myDataString= self.textview.text;
_myDataString= [_myDataString stringByReplacingOccurrencesOfString:#"\n" withString:#"<br/>"];

Answer 2

Please check the new line issue in whats app share using uiactivityviewcontroller.
#import <UIKit/UIKit.h>
#interface ShareActivity : UIActivityItemProvider
#property (nonatomic, strong) NSString *message;
#property (nonatomic, strong) NSArray *activities;
#end
#import "ShareActivity.h"
#implementation ShareActivity
#synthesize message = _message;
#synthesize activities = _activities;
- (id) activityViewController:(UIActivityViewController *)activityViewController itemForActivityType:(NSString *)activityType
{
if([activityType isEqualToString:#"net.whatsapp.WhatsApp.ShareExtension"])
{
return [self.message stringByReplacingOccurrencesOfString:#"\n" withString:#"<br/>"];
}
else if ([self.activities containsObject:activityType])
{
return [self.message stringByReplacingOccurrencesOfString:#"\n" withString:#"<br/>"];
}
else
{
return self.message;
}
return nil;
}
- (id) activityViewControllerPlaceholderItem:(UIActivityViewController *)activityViewController
{
return #"";
}
In View Controller Class on any action button to pop up the share view
Apply this action on any button action
-(void)shareAction
{
ShareActivity *shareObj = [[ShareActivity alloc] initWithPlaceholderItem:#""];
NSString *message = #"New\nLine\nText\nMessage";
[shareObj setMessage:message];
NSArray* dataToShare = #[shareObj];
NSArray *excludeActivities = #[UIActivityTypePrint,UIActivityTypeOpenInIBooks,UIActivityTypeAddToReadingList,UIActivityTypePostToTencentWeibo,UIActivityTypeSaveToCameraRoll,UIActivityTypeAirDrop];
UIActivityViewController *activityVC = [[UIActivityViewController alloc] initWithActivityItems:dataToShare applicationActivities:nil];
activityVC.excludedActivityTypes = excludeActivities;
[activityVC setCompletionHandler:^(NSString *act, BOOL done)
{
NSString *ServiceMsg = nil;
if ( [act isEqualToString:UIActivityTypeMail] )
{
ServiceMsg = #"Mail sent!";
}
else if ( [act isEqualToString:UIActivityTypePostToTwitter] )
{
ServiceMsg = #"Post on twitter, ok!";
}
else if ( [act isEqualToString:UIActivityTypePostToFacebook] )
{
ServiceMsg = #"Post on facebook, ok!";
}
else if ( [act isEqualToString:UIActivityTypeCopyToPasteboard] )
{
ServiceMsg = #"Message copy to pasteboard";
}
else if ( [act isEqualToString:UIActivityTypePostToFlickr] )
{
ServiceMsg = #"Message sent to flickr";
}
else if ( [act isEqualToString:UIActivityTypePostToVimeo] )
{
ServiceMsg = #"Message sent to Vimeo";
}
else
{
}
}];
[self presentViewController:activityVC animated:YES completion:nil];
}

Answer 3

hi its me again i was looking for the right answer
and i found that you can do it by using a Custom Share Message to Different Providers .
and you can find an example from this Code check for MyActivityItemProvider class .
https://github.com/apascual/flip-your-phone
i hove a problem posting the code here so i think the link above will help

Answer 4

Thanks to MuslimDev2015 I have been able to develop a solution:
https://github.com/lorenzoPrimi/NewlineActivityItemProvider
Try it and let me know.

Answer 5

You can send the text as multiple items each item is just one line.
let lines = text.components(separatedBy: "\n")
let activityViewController = UIActivityViewController(activityItems: lines, applicationActivities: nil)