Hi i am trying to resize string according to the text inside. But if the text (1 word text like link) is too long for the width that i used to resize it like below; label not fits it's size. The code that i am using is;
UILabel *gettingSizeLabel = [[UILabel alloc] init];
gettingSizeLabel.font = [UIFont fontWithName:#"HelveticaNeue" size:14];
gettingSizeLabel.text = messageData.TEXT;
gettingSizeLabel.numberOfLines = 0;
gettingSizeLabel.lineBreakMode = NSLineBreakByWordWrapping | NSLineBreakByTruncatingTail;
CGSize maximumLabelSize = CGSizeMake(240, 9999);
CGSize expectSize = [gettingSizeLabel sizeThatFits:maximumLabelSize];
As I write i want to resize text width to 240 (max), also it needs to be multiple lines. But the result can be calculated more than 240.
Thanks
This line is illegal:
gettingSizeLabel.lineBreakMode = NSLineBreakByWordWrapping | NSLineBreakByTruncatingTail;
lineBreakMode is not a bitmask. I'm surprised this would even compile, but the fact that it does is a good reason to switch to Swift, where this mistake is impossible to make.
If you fix that, it works fine (this is Swift, but it won't give you any trouble):
let s = "https://test.mobiletest.com/apps/12345678/install/abc123abc123abc123abc124"
let lab = UILabel()
lab.numberOfLines = 0
lab.text = s
lab.lineBreakMode = .ByWordWrapping
let result = lab.sizeThatFits(CGSizeMake(240,10000))
// (232.666666666667, 61.0)
I found a lot of solution with the property “adjustsFontSizeToFitWidth" , but none of these solutions works on IOS8.
I develop a responsive app and the label font size has to change according to the screen width...
I have :
label = [[UILabel alloc] init];
label.numberOfLines = 1;
label.adjustsFontSizeToFitWidth = YES;
label.font = [UIFont fontWithName:FONT_DIGITAL size:60];
[label setMinimumScaleFactor:8.0/label.font.pointSize];
label.textAlignment = NSTextAlignmentCenter;
label.frame = CGRectMake(0, 0, self.width, self.height);
label.text = #"TEXT";
[self addSubview:valueLabel];
Someone has a solution?
You should set your label's auto shrink property as shown in below image.
Hope this helps.
Following answer is a hack (not the best solution), but it works, so if you want, you can try:
- (void) sizeLabel: (UILabel *) label toRect: (CGRect) labelRect {
// Set the frame of the label to the targeted rectangle
label.frame = labelRect;
// Try all font sizes from largest to smallest font size
CGFloat fontSize = 16.0f;
CGFloat minFontSize = 5.0f;
// Fit label width wize
CGSize constraintSize = CGSizeMake(label.frame.size.width, MAXFLOAT);
do {
// Set current font size
label.font = [UIFont fontWithName:label.font.fontName size:fontSize];
// Find label size for current font size
CGRect textRect = [[label text] boundingRectWithSize:constraintSize
options:NSStringDrawingUsesLineFragmentOrigin
attributes:#{NSFontAttributeName:label.font}
context:nil];
CGSize labelSize = textRect.size;
// Done, if created label is within target size
if( labelSize.height <= label.frame.size.height )
break;
// Decrease the font size and try again
fontSize -= 1.0f;
} while (fontSize > minFontSize);
}
I've been trying to do a dynamic cell with label using swift to support IOS7 in heightForRowAtIndexPath but i only find objective-c code, is it possible to somebody else to help me rewriting this code into swift ?
// Fetch yourText for this row from your data source..
NSString *yourText = [yourArray objectAtIndex:indexPath.row];
CGSize lableWidth = CGSizeMake(300, CGFLOAT_MAX); // 300 is fixed width of label. You can change this value
CGSize requiredSize = [yourText sizeWithFont:[UIFont fontWithName:#"Times New Roman" size:19] constrainedToSize:lableWidth lineBreakMode:NSLineBreakByWordWrapping]; // You can put your desire font
// Here, you will have to use this requiredSize and based on that, adjust height of your cell. I have added 10 on total required height of label and it will have 5 pixels of padding on top and bottom. You can change this too.
int calculatedHeight = requiredSize.height+10;
return (float)calculatedHeight;
exactly this statement (how to convert it to swift) :
CGSize requiredSize = [yourText sizeWithFont:[UIFont fontWithName:#"Times New Roman" size:19] constrainedToSize:lableWidth lineBreakMode:NSLineBreakByWordWrapping]
i tried converting it to (but it doesn't work as the original objective-c ) :
var requiredSize: CGSize = originalString.sizeWithAttributes([NSFontAttributeName: UIFont.systemFontOfSize(19.0)])
Maybe it's possible to do it without the UILabel but this works just fine.
let label = UILabel(frame: CGRect(x: 0, y: 0, width: 300, height: 10000))
label.text = someText
label.numberOfLines = 100
label.font = UIFont(name: "Times New Roman", size: 19.0)
label.sizeToFit()
return label.frame.height + 10
CGFloat constrainedSize = 500.0f;
UIFont * myFont = [UIFont fontWithName:#"Arial" size:19]; //or any other font that matches what you will use in the UILabel
CGSize textSize = [myText sizeWithFont: myFont
constrainedToSize:CGSizeMake(constrainedSize, CGFLOAT_MAX)
lineBreakMode:NSLineBreakByWordWrapping];
lblDescription=[[UILabel alloc]initWithFrame:CGRectMake(10,y, 300,textSize.height)];
i have tried this code for manage the dynamic text. but if the data comes larger it will not display the whole text.
You constrain the size to width = 500pt, but your textfield is only 300pt wide.
Edit:
It seems, I wasn't clear. If you calculate the height of the label with sizeWithFont and give as constraint a width of 500pt (constrainedSize) and use the calculated height then on a label with only 300pt width, the calculated height is not correct.
This is how it works for me:
CGFloat constrainedSize = 300.0f;
UIFont * myFont = [UIFont fontWithName:#"Arial" size:19]; //or any other font that matches what you will use in the UILabel
CGSize textSize = [myText sizeWithFont: myFont
constrainedToSize:CGSizeMake(constrainedSize, CGFLOAT_MAX)
lineBreakMode:NSLineBreakByWordWrapping];
UILabel* lblDescription=[[UILabel alloc]initWithFrame:CGRectMake(10.0, 10.0, constrainedSize, textSize.height)];
lblDescription.lineBreakMode = NSLineBreakByWordWrapping;
lblDescription.numberOfLines = 0;
lblDescription.font = myFont;
lblDescription.text = myText;
Again: use the same attributes for the label (font, size, lineBreakMode) as you use for the calculation, otherwise it won't fit.
That's because you are alloc and initing the UILabel, and never reset it's frame for bigger size text.
Simply set the frame of the UILabel after a text size change.
This line sets the size of the label, to textSize.height and it doesn't change.
lblDescription=[[UILabel alloc]initWithFrame:CGRectMake(10,y, 300,textSize.height)];
You can call setFrame to programmatically change this.
To display a larger text/Multiline text you should use UITextView instead. It is designed to handle this issue.
hi here is code to set dynamic text in label
CGSize maximumLabelSize = CGSizeMake(300,9999);
CGSize expectedLabelSize = [label.text sizeWithFont:label.font
constrainedToSize:maximumLabelSize
lineBreakMode:label.lineBreakMode];
CGRect newFrame = label.frame;
newFrame.size.height = expectedLabelSize.height;
label.frame = newFrame;
i hope this is helping to you..
Is there a way to have multiple lines of text in UILabel like in the UITextView or should I use the second one instead?
Set the line break mode to word-wrapping and the number of lines to 0:
// Swift
textLabel.lineBreakMode = .byWordWrapping
textLabel.numberOfLines = 0
// Objective-C
textLabel.lineBreakMode = NSLineBreakByWordWrapping;
textLabel.numberOfLines = 0;
// C# (Xamarin.iOS)
textLabel.LineBreakMode = UILineBreakMode.WordWrap;
textLabel.Lines = 0;
Restored old answer (for reference and devs willing to support iOS below 6.0):
textLabel.lineBreakMode = UILineBreakModeWordWrap;
textLabel.numberOfLines = 0;
On the side: both enum values yield to 0 anyway.
In IB, set number of lines to 0 (allows unlimited lines)
When typing within the text field using IB, use "alt-return" to insert a return and go to the next line (or you can copy in text already separated out by lines).
The best solution I have found (to an otherwise frustrating problem that should have been solved in the framework) is similar to vaychick's.
Just set number of lines to 0 in either IB or code
myLabel.numberOfLines = 0;
This will display the lines needed but will reposition the label so its centered horizontally (so that a 1 line and 3 line label are aligned in their horizontal position). To fix that add:
CGRect currentFrame = myLabel.frame;
CGSize max = CGSizeMake(myLabel.frame.size.width, 500);
CGSize expected = [myString sizeWithFont:myLabel.font constrainedToSize:max lineBreakMode:myLabel.lineBreakMode];
currentFrame.size.height = expected.height;
myLabel.frame = currentFrame;
Use this to have multiple lines of text in UILabel:
textLabel.lineBreakMode = NSLineBreakByWordWrapping;
textLabel.numberOfLines = 0;
Swift:
textLabel.lineBreakMode = .byWordWrapping
textLabel.numberOfLines = 0
myUILabel.numberOfLines = 0;
myUILabel.text = #"your long string here";
[myUILabel sizeToFit];
If you have to use the:
myLabel.numberOfLines = 0;
property you can also use a standard line break ("\n"), in code, to force a new line.
You can use \r to go to next line while filling up the UILabel using NSString.
UILabel * label;
label.text = [NSString stringWithFormat:#"%# \r %#",#"first line",#"seconcd line"];
lets try this
textLabel.lineBreakMode = NSLineBreakModeWordWrap; // UILineBreakModeWordWrap deprecated
textLabel.numberOfLines = 0;
textLabel.lineBreakMode = UILineBreakModeWordWrap;
textLabel.numberOfLines = 0;
The solution above does't work in my case. I'm doing like this:
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
// ...
CGSize size = [str sizeWithFont:[UIFont fontWithName:#"Georgia-Bold" size:18.0] constrainedToSize:CGSizeMake(240.0, 480.0) lineBreakMode:UILineBreakModeWordWrap];
return size.height + 20;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil)
{
// ...
cell.textLabel.lineBreakMode = UILineBreakModeWordWrap;
cell.textLabel.numberOfLines = 0;
cell.textLabel.font = [UIFont fontWithName:#"Georgia-Bold" size:18.0];
}
// ...
UILabel *textLabel = [cell textLabel];
CGSize size = [text sizeWithFont:[UIFont fontWithName:#"Georgia-Bold" size:18.0]
constrainedToSize:CGSizeMake(240.0, 480.0)
lineBreakMode:UILineBreakModeWordWrap];
cell.textLabel.frame = CGRectMake(0, 0, size.width + 20, size.height + 20);
//...
}
Swift 3
Set number of lines zero for dynamic text information, it will be useful for varying text.
var label = UILabel()
let stringValue = "A label\nwith\nmultiline text."
label.text = stringValue
label.numberOfLines = 0
label.lineBreakMode = .byTruncatingTail // or .byWrappingWord
label.minimumScaleFactor = 0.8 . // It is not required but nice to have a minimum scale factor to fit text into label frame
Use story borad : select the label to set number of lines to zero......Or Refer this
Try using this:
lblName.numberOfLines = 0;
[lblName sizeToFit];
UILabel *helpLabel = [[UILabel alloc] init];
NSAttributedString *attrString = [[NSAttributedString alloc] initWithString:label];
helpLabel.attributedText = attrString;
// helpLabel.text = label;
helpLabel.textAlignment = NSTextAlignmentCenter;
helpLabel.lineBreakMode = NSLineBreakByWordWrapping;
helpLabel.numberOfLines = 0;
For some reasons its not working for me in iOS 6 not sure why. Tried it with and without attributed text. Any suggestions.
Method 1:
extension UILabel {//Write this extension after close brackets of your class
func lblFunction() {
numberOfLines = 0
lineBreakMode = .byWordWrapping//If you want word wraping
//OR
lineBreakMode = .byCharWrapping//If you want character wraping
}
}
Now call simply like this
myLbl.lblFunction()//Replace your label name
EX:
Import UIKit
class MyClassName: UIViewController {//For example this is your class.
override func viewDidLoad() {
super.viewDidLoad()
myLbl.lblFunction()//Replace your label name
}
}//After close of your class write this extension.
extension UILabel {//Write this extension after close brackets of your class
func lblFunction() {
numberOfLines = 0
lineBreakMode = .byWordWrapping//If you want word wraping
//OR
lineBreakMode = .byCharWrapping//If you want character wraping
}
}
Method 2:
Programmatically
yourLabel.numberOfLines = 0
yourLabel.lineBreakMode = .byWordWrapping//If you want word wraping
//OR
yourLabel.lineBreakMode = .byCharWrapping//If you want character wraping
Method 3:
Through Story board
To display multiple lines set 0(Zero), this will display more than one line in your label.
If you want to display n lines, set n.
See below screen.
If you want to set minimum font size for label Click Autoshrink and Select Minimum Font Size option
See below screens
Here set minimum font size
EX: 9 (In this image)
If your label get more text at that time your label text will be shrink upto 9
These things helped me
Change these properties of UILabel
label.numberOfLines = 0;
label.adjustsFontSizeToFitWidth = NO;
label.lineBreakMode = NSLineBreakByWordWrapping;
And while giving input String use \n to display different words in different lines.
Example :
NSString *message = #"This \n is \n a demo \n message for \n stackoverflow" ;
Swift 4:
label.lineBreakMode = .byWordWrapping
label.numberOfLines = 0
label.translatesAutoresizingMaskIntoConstraints = false
label.preferredMaxLayoutWidth = superview.bounds.size.width - 10
UILabel *labelName = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 100, 30)];
[labelName sizeToFit];
labelName.numberOfLines = 0;
labelName.text = #"Your String...";
[self.view addSubview:labelName];
You can do that via the Storyboard too:
Select the Label on the view controller
In the Attribute Inspector, increase the value of the Line option (Press Alt+Cmd+4 to show Attributes Inspector)
Double click the Label in the view controller and write or paste your text
Resize the Label and/or increase the font size so that the whole text could be shown
you should try this:
-(CGFloat)dynamicLblHeight:(UILabel *)lbl
{
CGFloat lblWidth = lbl.frame.size.width;
CGRect lblTextSize = [lbl.text boundingRectWithSize:CGSizeMake(lblWidth, MAXFLOAT)
options:NSStringDrawingUsesLineFragmentOrigin
attributes:#{NSFontAttributeName:lbl.font}
context:nil];
return lblTextSize.size.height;
}
Oh, in 2021 I'm trapped by a label text unable to change lines for 1 hour, then realize I forget to set label's width, WTF.
let stepLabel: UILabel = {
let label = UILabel()
label.translatesAutoresizingMaskIntoConstraints = false
label.textAlignment = .center
label.lineBreakMode = .byWordWrapping
label.numberOfLines = 0
label.text = "Put your device and computer under same Wi-Fi network."
return label
}()
override func viewDidLoad() {
super.viewDidLoad()
view.backgroundColor = .white
view.addSubview(stepLabel)
NSLayoutConstraint.activate([
stepLabel.centerXAnchor.constraint(equalTo: view.centerXAnchor),
stepLabel.centerYAnchor.constraint(equalTo: view.centerYAnchor),
stepLabel.widthAnchor.constraint(equalTo: view.widthAnchor, multiplier: 0.7)
])
}
UILabel *textLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 150, 30)];
[textLabel sizeToFit];
textLabel.numberOfLines = 0;
textLabel.text = #"Your String...";
Already answered, but you can do it manually in the storyboard too. Under Attributes Inspector for the Label, you can change Line Breaks to Word Wrap (or character wrap).
In this function pass string that you want to assign in label and pass font size in place of self.activityFont and pass label width in place of 235, now you get label height according to your string.
it will work fine.
-(float)calculateLabelStringHeight:(NSString *)answer
{
CGRect textRect = [answer boundingRectWithSize: CGSizeMake(235, 10000000) options:NSStringDrawingUsesLineFragmentOrigin attributes:#{NSFontAttributeName:self.activityFont} context:nil];
return textRect.size.height;
}
Set below either in code or in storyboard itself
Label.lineBreakMode = NSLineBreakByWordWrapping;
Label.numberOfLines = 0;
and please don't forget to set left, right, top and bottom constraints for label otherwise it won't work.
On C#, this worked for me inside UITableViewCell.
UILabel myLabel = new UILabel();
myLabel.Font = UIFont.SystemFontOfSize(16);
myLabel.Lines = 0;
myLabel.TextAlignment = UITextAlignment.Left;
myLabel.LineBreakMode = UILineBreakMode.WordWrap;
myLabel.MinimumScaleFactor = 1;
myLabel.AdjustsFontSizeToFitWidth = true;
myLabel.InvalidateIntrinsicContentSize();
myLabel.Frame = new CoreGraphics.CGRect(20, mycell.ContentView.Frame.Y + 20, cell.ContentView.Frame.Size.Width - 40, mycell.ContentView.Frame.Size.Height);
myCell.ContentView.AddSubview(myLabel);
I think the point here is:-
myLabel.TextAlignment = UITextAlignment.Left;
myLabel.LineBreakMode = UILineBreakMode.WordWrap;
myLabel.MinimumScaleFactor = 1;
myLabel.AdjustsFontSizeToFitWidth = true;
This code is returning size height according to text
+ (CGFloat)findHeightForText:(NSString *)text havingWidth:(CGFloat)widthValue andFont:(UIFont *)font
{
CGFloat result = font.pointSize+4;
if (text)
{
CGSize size;
CGRect frame = [text boundingRectWithSize:CGSizeMake(widthValue, 999)
options:NSStringDrawingUsesLineFragmentOrigin
attributes:#{NSFontAttributeName:font}
context:nil];
size = CGSizeMake(frame.size.width, frame.size.height+1);
result = MAX(size.height, result); //At least one row
}
return result;
}