Multiline UILabel not working in Notification Content Extension

Question

I've put a UILabel in my notification content extension storyboard and set it up using auto layout. I've also set the numberOfLines to 0. In the storyboard, it looks perfectly fine but when I use it on my device, the label is coming out to be a single line. Am I missing anything?

Edit (ScreenShots added):

Also, when a new notification comes, I see a blank info and it's updated after a few secs.

More ScreenShots Added:

Number of lines is set to 0.

and in the code I'm setting it like this:

titleString.text = "Saturday SuperBowl Saturday SuperBowl Saturday SuperBowl"

But still it is coming as a single line.

do you ... at the end of 1 line label? if yes, might be you are setting programmatically as 1 line... if no, somewhere you are messing with constrains... — Fahim Parkar, Nov 01 '16 at 11:48
No it's set as 0 lines. And the problem is happening with this extension only. — Bhavuk Jain, Nov 01 '16 at 11:49
do you see ... at the end of label? can you post screenshot... — Fahim Parkar, Nov 01 '16 at 11:51
Then something is wrong with the constraints. Perhaps give the label's content compression resistance priority higher value than the MapView's — spassas, Nov 01 '16 at 12:11
@spassas Did you try setting up a multiline label on a notification content extension storyboard? — Bhavuk Jain, Nov 01 '16 at 12:12
Yes, multiline labels are working fine on notification content storyboards — spassas, Nov 01 '16 at 12:18
There seems to be an issue with the constraints. What constraints have you set on the other views? — Adeel, Nov 01 '16 at 12:24
I've removed all the other views. Please check the updated question. — Bhavuk Jain, Nov 01 '16 at 12:30
[check this... might help](http://stackoverflow.com/questions/446405/adjust-uilabel-height-depending-on-the-text) — Fahim Parkar, Nov 01 '16 at 12:35
Hey @BhavukJain I have run into the same issue. Have you a solution for this? — Tom Kraina, Jul 17 '17 at 09:49
@TomKraina I haven't tried it for a while now, but earlier I increased the height of UILabel so it manages to take up 2 lines max. This also makes sense for not allowing multiline via autolayout as the content should not go pass the screen height otherwise the notification will look weird. — Bhavuk Jain, Jul 17 '17 at 09:59

score 1 · Answer 1 · answered Nov 19 '16 at 01:54

1

You must set the uilabels preferredMaxLayoutWidth. You can do this in your view controller:

override func viewDidLayoutSubviews() {
    super.viewDidLayoutSubviews()
    titleString.preferredMaxLayoutWidth = titleString.frame.size.width
    self.view.layoutIfNeeded()
}

or subclassing your uilabel:

override func layoutSubviews() {
    self.preferredMaxLayoutWidth = self.frame.size.width
    super.layoutSubviews
}

answered Nov 19 '16 at 01:54

Robert Erdei

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1
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I'm using autolayout. – Bhavuk Jain Nov 19 '16 at 06:30
Even so you have to use what I wrote above! – Robert Erdei Dec 14 '16 at 20:01

Multiline UILabel not working in Notification Content Extension

1 Answers1