In iOS app development, the TSMessages library, which allows easy implementation of notification views, added a dismissActiveNotification method in version 0.9.3 to hide the currently displayed view.

・toursprung/TSMessages - Changes

/** Fades out the currently displayed notification. If another notification is in the queue,
 the next one will be displayed automatically 
 @return YES if the currently displayed notification could be hidden. NO if no notification 
 was currently displayed.
 */
+ (BOOL)dismissActiveNotification
{
    if ([[TSMessage sharedMessage].messages count] == 0) return NO;
    
    dispatch_async(dispatch_get_main_queue(), ^
    {
        TSMessageView *currentMessage = [[TSMessage sharedMessage].messages objectAtIndex:0];
        if (currentMessage.messageIsFullyDisplayed)
        {
            [[TSMessage sharedMessage] fadeOutNotification:currentMessage];
        }
    });
    return YES;
}

Previously, there was no way to call a method to hide the notification view from external code, so I had to fork TSMessages and make it callable from outside.

Since the dismissActiveNotification method has been added, I’ll use this instead.

That’s all from the Gemba.