sizeWithFont:forWidth:lineBreakMode:
has been deprecated in iOS7. I'm not sure how to include line breaks when using sizeWithAttributes.
Does anyone know of a good workaround? I'm trying to determine the expected height of an nsstring with given font and line break mode and width.
https://developer.apple.com/library/ios/documentation/uikit/reference/NSString_UIKit_Additions/DeprecationAppendix/AppendixADeprecatedAPI.html
sizeWithFont:forWidth:lineBreakMode:
Returns the size of the string if it were to be rendered with the specified font and line attributes on a single line. (Deprecated in iOS 7.0. Use boundingRectWithSize:options:attributes:context:.)
Related
I am trying to change the font size based on the iPhone Screen size.
I am setting a font size that looks good on iPhone 6 Plus and once I detect the iPhone and it is not iPhone 6 Plus, I change its size.
I am trying it on the ViewDidLoad event:
lblLogin.Font.WithSize(17f);
But it is not updating the FontSize, I guess "Font.WithSize" is not the path to achieve it, any ideas?
WithSize() returns a font reference, it does not modify the existing font
lblLogin.Font = lblLogin.Font.WithSize(17f);
Also, see this Xamarin recipe
If you want to change the font size of a UILabel, try to use those code, like:
//1 Just change size
customLabel.Font = UIFont.SystemFontOfSize (18);
//2 Set the font name and size:
customLabel.Font = UIFont.FromName("Helvetica-Bold", 20f);
Hope it can help you.
My problem is that I have to two UITextView displaying different Text, but always the same number of characters. I could not find a way to set a fix character-width and space width in UITextView/NSAtrrStr/UIFont.
Is there a way to do that?
thanks
As far as I know, Courier New is the only fixed-width font shipped with iOS.
Also, you can always import custom fonts to your xcode project which you know are fixed-width. Here is how: Embed Custom Font in iOS
I opened an existing iOS project with Xcode6 beta6, and Xcode lists the following warning for both Storyboard and Xib files:
Automatic Preferred Max Layout Width is not available on iOS versions
prior to 8.0
I tried addressing the warning by setting the width as explicit like below:
Yet this didn't resolve the warnings. How can they be removed?
Update 3:
This warning can also be triggered by labels that have numberOfLines set to anything but 1 if your deployment target is set to 7.1. This is completely reproducible with new single-view project.
Steps to Reproduce:
Create a new single-view, objective-c project
Set the Deployment Target to 7.1
Open the project's storyboard
Drop a label onto the provided view controller
Set the numberOfLines for that label to 2.
Compile
I've filed the following radar:
rdar://problem/18700567
Update 2:
Unfortunately, this is a thing again in the release version of Xcode 6. Note that you can, for the most part, manually edit your storyboard/xib to fix the problem. Per Charles A. in the comments below:
It's worth mentioning that you can pretty easily accidentally
introduce this warning, and the warning itself doesn't help in finding
the label that is the culprit. This is unfortunate in a complex
storyboard. You can open the storyboard as a source file and search
with the regex <label(?!.*preferredMaxLayoutWidth) to find labels that
omit a preferredMaxLayoutWidth attribute/value. If you add in
preferredMaxLayoutWidth="0" on such lines, it is the same as marking
explicit and setting the value 0.
Update 1:
This bug has now been fixed in Xcode 6 GM.
Original Answer
This is a bug in Xcode6-Beta6 and XCode6-Beta7 and can be safely ignored for now.
An Apple engineer in the Apple Developer forums had this to say about the bug:
Preferred max layout width is an auto layout property on UILabel that
allows it to automatically grow vertically to fit its content.
Versions of Xcode prior to 6.0 would set preferredMaxLayoutWidth for
multiline labels to the current bounds size at design time. You would
need to manually update preferredMaxLayoutWidth at runtime if your
horizontal layout changed.
iOS 8 added support for automatically computing
preferredMaxLayoutWidth at runtime, which makes creating multiline
labels even easier. This setting is not backwards compatible with iOS
7. To support both iOS 7 and iOS 8, Xcode 6 allows you to pick either "Automatic" or "Explicit" for preferredMaxLayoutWidth in the size
inspector. You should:
Pick "Automatic" if targeting iOS 8 for the best experience. Pick
"Explicit" if targeting < iOS 8. You can then enter the value of
preferredMaxLayoutWidth you would like set. Enabling "Explicit"
defaults to the current bounds size at the time you checked the box.
The warning will appear if (1) you're using auto layout, (2)
"Automatic" is set for a multiline label [you can check this in the
size inspector for the label], and (3) your deployment target < iOS 8.
It seems the bug is that this warning appears for non-autolayout
documents. If you are seeing this warning and not using auto layout
you can ignore the warning.
Alternately, you can work around the issue by using the file inspector on the storyboard or xib in question and change "Builds for" to "Builds for iOS 8.0 and Later"
To Find the problem label(s) in a large storyboard, follow my steps below.
In xCode's Issue Navigator right click on the error and select "Reveal In Log". (Note: #Sam suggests below, look in xCode's report navigator. Also #Rivera notes in the comments that "As of Xcode 6.1.1, clicking on the warning will automatically open and highlight the conflicting label". I haven't tested this).
This will show the error with a code at the end of your storyboard file. Copy the value after .storyboard
Next, reveal your storyboard as source file.
Search. You should be able to tell what label it is from here quite easily by looking at the content.
Once you find the label the solution that worked for me was to set the "preferred width" to 0.
BTW, you can always quickly get the id of an interface item by selecting the item and looking under the identify inspector. Very handy.
You can fix this issue without opening the storyboard as a source.
This warning is triggered by UILabels if numberOfLines !=1 and deployment target is < 8.0
HOW TO FIND IT?
Go to Issue Navigator (CMD+8) and Select latest built with the warning
Locate the warning(s) (search for "Automatic Preferred Max Layout") and press expand button on the right
Find the Object ID of the UILabel
Open the Storyboard and SEARCH (CMD+f) for the object. It will SELECT AND HIGHLIGHT the UILabel
Set Preferred Width = 0 "Explicit" as others suggested
Solution it's quite simple
Just enable Builds for iOS 8 and Later
Now my Xcode version is 6.1. But I got this warning too. it annoys me a lot . after search again and again.I found the solution.
Reason:You must have set your UILabel Lines > 1 in your Storyboard.
Solution: set your UILabel Lines attribute to 1 in Storyboard. restart your Xcode. It works for me, hope it can help more people.
If you really need to show your words more than 1 line. you should do it in the code.
//the words will show in UILabel
NSString *testString = #"Today I wanna set the line to multiple lines. bla bla ...... Today I wanna set the line to multiple lines. bla bla ......"
[self.UserNameLabel setNumberOfLines:0];
self.UserNameLabel.lineBreakMode = NSLineBreakByWordWrapping;
UIFont *font = [UIFont systemFontOfSize:12];
//Here I set the Label max width to 200, height to 60
CGSize size = CGSizeMake(200, 60);
CGRect labelRect = [testString boundingRectWithSize:size options:NSStringDrawingUsesLineFragmentOrigin attributes:[NSDictionary dictionaryWithObject:font forKey:NSFontAttributeName] context:nil];
self.UserNameLabel.frame = CGRectMake(self.UserNameLabel.frame.origin.x, self.UserNameLabel.frame.origin.y, labelRect.size.width, labelRect.size.height);
self.UserNameLabel.text = testString;
To summarize, for me following the two instructions above to change any instances where numberOfLines = 0 to 1 or greater, and manually adding preferredMaxLayoutWidth="0" to each instance of a label inside the storyboard source fixed all of my warnings.
Since I don't have a 50 reputation Stackoverflow wont let me comment on the second best answer. Found another trick for finding the culprit label in the Storyboard.
So once you know the id of the label, open your storyboard in a seperate tab with view controllers displayed and just do command F and command V and will take you straight to that label :)
I got it working by selecting the original layout I had in the W / H selection. Storyboard is working as expected and the error is gone.
Be also sure that you are developing for iOS 8.0. Check that from the project's general settings.
This is where you should press.
I had this issue and was able to fix it by adding constraints to determine the max with for a label.
When dropping a multiline label in there is not constraint set to enforce the width inside the parent view. This is where the new PreferredMaxWidth comes into play. On iOS 7 and earlier you have to define the max width yourself. I simply added a 10px constraint to the left and right hand side of the label.
You can also add a <= width constraint which also fixes the issue.
So this is not actually a bug, you simply have to define the max width yourself. The explicit option mention in other answer will also work as you are setting this width value however you will have to modify this value if you want the max width to change based on the parent width (as you have explicitly set the width).
My above solution ensures the width is always maintained no matter how big the parent view is.
For some reason, even if changing the iOS Deployment Target to 8.0 or higher, the Xib files don't adopt that change and remain with the previous settings in the File inspector
Therefore, you should change it manually for each Xib
Once done, the warning will disappear :-)
I know after ios6, setAttributeString could help to change the line space,
but if I'm typing in the textview, may I change the line space, on ios7 setAttributeString seems work but not on iOS 6
I think you can't change line space of textfield in iOS 6 because there is no API call available for iOS 6. Although you can use core text for this. Look this code for this https://github.com/mattt/TTTAttributedLabel
There was a bug in iOS 6, that causes line height to be ignored when font is set. See answer to NSParagraphStyle line spacing ignored and longer bug analysis at Radar: UITextView Ignores Minimum/Maximum Line Height in Attributed String.
I just upgraded to xcode 4.5 with iOS 6.0 and it's highlighting a warning on all the UILabels in my XIB files saying "minimum font size deprecated on ios version 6.0". Does anyone know what this is referring to and how to fix it?
Update:
image is no more available (was at https://skitch.com/hahmadi82/eyk51/cloud)
minimumFontSize property of the UILabel is deprecated from iOS 6.0 onwards.
An Alternative to the minimumFontSize is minimumScaleFactor. If you assign minimumFontSize/defaultFontSize to minimumScaleFactor, it works in the same way as minimumFontSize.
The Code is as follows - For Example the font size is 30.0 and if you want the minimum font size to be 12.0
YOURLABEL.font= [UIFont fontWithName:#"FONT_NAME" size:30.0];
[YOURLABEL setMinimumScaleFactor:12.0/[UIFont labelFontSize]];
Use minimumScaleFactor instead...
Link
Quick fix...Here minimum font size to be 8.0
CGFloat size = textLabel.font.pointSize;// font size of label text
[textLabel setMinimumScaleFactor:8.0/size];
I am answering very late, but might help any other.
As every one knows that setMinimumFontSize has been deprecated, so other method replacing setMinimumFontSize is setAdjustFontToFitWidth which takes BOOL
e.g
[yourLabel setAdjustsFontSizeToFitWidth:YES];
//or
yourLabel.adjustsFontSizeToFitWidth = YES;
For Swift use the following:
//set the number (ex. 8 to your desired minimum font size)
myLabel!.minimumScaleFactor = 8/myLabel!.font.pointSize;`
Works like a charm!
I had similar problem. Quick fix is to use MinimumScaleFactor property of UILabel.
Go into finder and find the .storyboard file or your .xib and open with TextEdit. Use find to locate the string "autoshrinkMode" and replace the value "minimumFontSize" to "minimumFontScale"
Odd that the conversion wasn't written in the update scripts...
Also credit to #Rob in the comments above for stating the same answer. He should receive credit for this one.
You can use minimum scale factor over there or drag a lable and set autoshrik-> minimum font.
Maybe this can help you.
Yes minumumFontSize is deprecated.
Use following minimumScaleFactor:-
Obj.minimumScaleFactor= (floatValue);