In my app I am assigning fixed width and height to uilabel and assigning some text to it. My problem is if the text length is more than the label height I want to show "..." at the end of the text eg "apple... " . Is there is any property to show like this?
Yes, please check the line break property and set it to truncateTail
label.lineBrakMode = UILineBreakModeTailTruncation;
Hope this helps,
CGSize maximumSize = CGSizeMake(300, 40); //to keep height fixed to 40 //or use (150,300) to keep width fixed to 150 and varying height .
NSString *myString =#"Text for lable";
UIFont *myFont = [UIFont fontWithName:#"marker felt" size:14];// font used for label
CGSize myStringSize = [myString sizeWithFont:myFont
constrainedToSize:maximumSize
lineBreakMode:label.lineBreakMode];
use MySTringSize to set the frame for label. And use nemberOfLines property for label, it might be helpfull.
Related
I've tried to search online, but haven't found a clear answer for my issue so I've come to ask for your expert advice. I have a view with 2 labels on it. Both label will display different string length from the plist.
When i run the app, the label will overlapped with other label depending on the string length.
Below is the screenshot for my problem
You have to change your secondLabel origin.
CGRect frame = secondLabel.frame;
frame.origin.y= firstLabel.frame.origin.y + firstLabel.frame.size.height;
[secondLabel setFrame:frame];
Better option is to use UITextView instead of UILabel but if you still want to go with lable then
with the use of below code you can find the height of the text and can set your lable's frame according to that height
NSString *text = [arr objectAtIndex:indexPath.row];
CGSize constraint = CGSizeMake(contentWidth - (CELL_CONTENT_MARGIN * 2), 20000.0f);
CGSize size = [text sizeWithFont:[UIFont systemFontOfSize:20] constrainedToSize:constraint lineBreakMode:NSLineBreakByWordWrapping];
CGFloat height = MAX(size.height, 44.0f);
here contentWidth is the width of your label and CELL_CONTENT_MARGIN = 10;
You need to set the 'Y' of second label. Take the Height of first label text and then set it to the Second Label 'Y'.
Hope it'll help you.
CGSize LblSize=[[Label1 text] sizeWithFont:[UIFont systemFontOfSize:14.0f] constrainedToSize:CGSizeMake(320.0f, 400.0f)];
UILabel *Label2=[[UILabel alloc] initWithFrame:Label2Rect];
CGRect Label2Rect=[Label2 Frame];
Label2Rect.origin.y=LblSize.height+30.0f; //add some extra spaces, I have added 30.0f here
[Label2 setFrame:Label2Rect];
Ey, you can solve it in many ways.
For example, you can fill your first label with the dessired text and then call to
[label1 sizeToFit]
With that call, your label now has the proper size, adapted to the lenght of your text. Now you can just place your second label after your first one.
label2.frame = CGRectMake (x, label1.frame.size.height + ..., .....)
Hope it helps!
I have to show multiple line in UILabel (If text is large). Below is my code. I am using separate properties for different iOS versions. Please help me out..
labelLocation.numberOfLines=2;
labelLocation.font=[UIFont systemFontOfSize:25];
if ([[[UIDevice currentDevice]systemVersion]floatValue]>=6) {
labelLocation.lineBreakMode=NSLineBreakByTruncatingTail;
labelLocation.minimumScaleFactor=10.0/[UIFont labelFontSize];
}else{
labelLocation.lineBreakMode=UILineBreakModeTailTruncation;
labelLocation.minimumFontSize=10;
}
labelLocation.text=#"Can we make UILabeltext in 2 lines if name is large";
these two line together works
labelLocation.numberOfLines=0;
labelLocation.lineBreakMode = NSLineBreakByWordWrapping;
you can set
yourlabelname.lineBreakMode = NSLineBreakByWordWrapping;
yourlabelname.numberOfLines = give how many lines you want for your label(e.g.2,3,etc...)
and check if your outlet is set properly.
Try this labelLocation.numberOfLines=0;
I suppose, that your label has to small height. Two lines in systemFontOfSize 25 need height about 60.
If label is to small, system doesn't wrap line.
change ur code to this
labelLocation.numberOfLines=0;
labelLocation.font=[UIFont systemFontOfSize:40];
labelLocation.lineBreakMode=NSLineBreakModeWordWrap;
labelLocation.text=#"Can we make UILabeltext in 2 lines if name is large";
I would personally recommend you to calculate the height required to show the text and then show it onto the label...never hard code text display components such as UITextView and UILable.
NSString *str = #"This is to test the lable for the auto increment of height. This is only a test. The real data is something different.";
`UIFont * myFont = [UIFont fontWithName:#"Arial" size:12];//specify your font details here
//then calculate the required height for the above text.
CGSize lableSiZE = [str sizeWithFont:myFont constrainedToSize:CGSizeMake(240, CGFLOAT_MAX) lineBreakMode:NSLineBreakByWordWrapping];
//initialize your label based on the height you got from the above..you can put whatever width you prefer...
UILabel *myLable = [[UILabel alloc] initWithFrame:CGRectMake(10, 10, lableSiZE.width, lableSiZE.height)];
myLable.text = str;
myLable.numberOfLines=0;
myLable.font=[UIFont fontWithName:#"Arial" size:12];
//myLable.backgroundColor=[UIColor redColor];
myLable.lineBreakMode = NSLineBreakByWordWrapping;
As I get strings of text down from my database, I need to know how big to make the UITextField and how big to make the Cell of the table that contains the UITextfield.
Are there any clever methods that can determine this? Since it will of course depend on the textfield width and the font used.
Thanks
-Code
NSString has a method sizeWithFont:contrainedToSize: that will give you to the size of a string with a particular font:
UIFont *font = [UIFont systemFontOfSize:12.f];
CGSize size = CGSizeMake(textView.frame.size.width, 1000.f);
CGSize stringSize = [myString sizeWithFont:font constrainedToSize:size];
This general topic has been asked here multiple times: how to render UITableViewCells with varying amount of text and thus varying height. The canonical answer is: you calculate the height in table view controller delegate in heightForRowAtIndexPath using sizeWithFont:constrainedToSize:lineBreakMode:. Later, the cell gets drawn, and you use something like [label sizeToFit] if needed, and all works like magic.
My problem: I am getting wrapping for some cells because sizeWithFont: returns different dimensions from actual drawing.
A specific example:
The text is this: "People forget that #BillGates had a sexy 1/4-inch thick slate back in 1993 from NEC. Whatever happens this week will NOT be about hardware!"
CGSize theSize = [text sizeWithFont:[UIFont systemFontOfSize:17.0f] constrainedToSize:CGSizeMake(310.0f, FLT_MAX) lineBreakMode:UILineBreakModeWordWrap];
NSLog(#"calculated size for %#: %f, %f",text, theSize.width, theSize.height);
This returns: 306.000000, 84.000000. (I.e 4 rows with 17px font and 4px linespacing, 21px leading.) Good.
However, later when actually drawing the cell:
label = (UILabel *)[cell viewWithTag:3];
label.text = [NSString stringWithFormat:#"%#", text];
label.lineBreakMode = UILineBreakModeWordWrap;
label.font = [UIFont systemFontOfSize:17.0f];
CGSize labelSize;
labelSize = label.frame.size;
NSLog(#"label size before resizing: %f, %f", labelSize.width, labelSize.height);
[label sizeToFit];
labelSize = label.frame.size;
NSLog(#"label size after resizing: %f, %f for text %#", labelSize.width, labelSize.height,text);
(UILabel is loaded as part of UITableViewCell from NIB. In IB I set it to 310px wide.)
This should return exactly the same size as above. Instead, I get 281.000000, 105.000000 as the dimensions after sizeToFit call. It is now 5 lines at drawing time instead of 4, and the text spills over, I see the spillover in the UI.
So, for the same text, I am getting two different dimensions calculated, and can't figure it out. Is it something about UILabel? Does it have some inner margins? This keeps happening for some texts but not others, and I have not traced it to something particular about the strings; seems random. This topic highlights that there are two processing passes: calculating height vs actual drawing. This is consistent with what I'm seeing. But I don't understand what exactly is going on or how to fix it.
The question: why am I seeing two different calculated sizes, and how do I fix it?
Of course, the solution is obvious 30 seconds after posting. Maybe useful to others too...
The size by sizeWithFont: was correct. The sizes I calculated in the above way were incorrect, because [label sizeToFit] reduces the width of the label's frame. At subsequent calls to the same code, it started off with the frame that may already have been reduced.
The fix was to simply reset the frame width to a known good width before sizing to fit:
CGRect labelFrame = label.frame;
labelFrame.size.width = 310;
label.frame = labelFrame;
[label sizeToFit];
For multiline labels you need set
cell.textLabel.numberOfLines = 0;
and then
[cell.textLabel sizeToFit];
But for pretty view you need add some padding pixels. And your app will be awesome!
titleSize = [title sizeWithFont:[UIFont systemFontOfSize:(CGFloat)17.0]
constrainedToSize:CGSizeMake(280, 2000)
lineBreakMode:NSLineBreakByWordWrapping];
I have a fixed size UITextView say width and height of 150,150.
The purpose is to display the thought of the day. Please note the size need to remain constant and I cant change it.
Now The length of the thought string varies with respect to thought. What I want to do is change the size of font of the text to make sure it dont show any empty space in UITextView if length is small or it dont show the scroll if its bigger.
So how to vary the font of UITextView according to the length of thought string.
What is wrong with the following code:
CGSize size;
BOOL run=TRUE;
CGSize txtViewSize = self.txt_tipView.frame.size;
while(run){
size = [self.txt_tipView.text sizeWithFont:[UIFont systemFontOfSize: currentSize] constrainedToSize:txtViewSize lineBreakMode:UILineBreakModeWordWrap];
if((size.width<=txtViewSize.width) && (size.height<=txtViewSize.height))
run = FALSE;
else
currentSize--;
}
self.txt_tipView.font = [UIFont fontWithName:#"Helvetica" size:currentSize];//[UIFont boldSystemFontOfSize:12];
What happens is the size of the text in TextView is always 60. That is each line has only one word.
Set an implicit font size, let's say the largest acceptable font you could use. Then, make a measurement of your text size with:
CGSize size = [text sizeWithFont:[UIFont systemFontOfSize: currentSize] constrainedToSize: maxTextSize lineBreakMode:UILineBreakModeWordWrap];
If the size you obtain is off the acceptable bounds, adjust the font size and repeat. The maxTextSize should be the size of your UITextView.