I have two labels in my layout.
I want the font size to adjust to fit the label bounds.
I set to true the UILabel adjustFontSizeToFit.
Moreover a need the two labels to have the same font size. So I added an auto-layout constraint to make the labels have the same size.
The issue with it is the labels do not contain the same string. Sometimes the first is longer and vice-versa. The font I use doesn't have the same width for every character which will not allow me to use a space to fill to shorter string. (This solution looks a bit ugly to me).
I tried to get the label.font.size.pointSize after the label has been displayed but the value returned is always the one I set at the beginning (before being reduced to fit).
Does anyone have an idea on how I could achieve it ?
Related
I have a UILabel with some text on it, what I want is if the text with the given font does not fit to the label, I want it to be first linebreaked to a second line, and if still does not fit then it should automatically adjust those 2 lines to a smaller font.
I experienced with the IB changing the settings of linebreaks and number of rows, but couldn't get what I want.
Any recommendadtions?
To my knowledge UILabel does not support auto adjusting the font when there is more than one line.
The only way I know of it to iteratively calculate a fitting font size and then to set the appropriate font manually.
Maybe the sizeWithFont: method is a solution for you:
– sizeWithFont:forWidth:lineBreakMode:
This calculates the width / height of a NSString with the appropriate font / settings
I'm creating a CustomCell that contains a UILabel, by default the UILabel will have two lines of text with wrap around enabled, but there are occasions when the text will require three lines.
The font type and size is fixed and cannot be changed, and I trying to identify a way of calculating the length of the NSString/UILabel prior to creating the UITableView/CustomCell so that the cell height can be set correctly. The text that will be displayed will be made up of a number of different words e.g. 'Your name is XXXXX XXXXX and your birthday is..' and the XXXXXXX is the element that is variable.
Hopefully this makes sense, one idea I have considered is creating a method that contains a UILabel that is never displayed and populating it with the required text and then checking if 2 or 3 lines are used, but not sure how to do this.
Is there a more elegant method of achieving this?
There are several UIKit functions for calculating with size of a string with various linebreak modes and fonts. See this doc for details.
In particular sizeWithFont:constrainedToSize:lineBreakMode: may be useful for this.
I believe NSStrings sizeWithFont: constrainedToSize: lineBreakMode: is the method you are looking for. This returns a CGSize which you can get the height of to determine your cell's height (and set the label's frame to the correct size obviously).
Note: you should pass a CGSize parameter in to the constrainedToSize: part that is a larger height than what you intend it to be but the correct maximum width of the label
I am having a problem with the UITableview cell cutting off strings whose characters are more than 12 chars. Any ideas why this would occur? I have not made a custom cell at all. I cannot find any solution to this problem through a Google search. Any ideas?
You should be able to set the label properties to re-size the font based on the label's contents using adjustsFontSizeToFitWidth. This will essentially decrease the font size to make the text fit all on one line.
Your cell likely contains a label, which in turn is set to given bounds. What you need to do is ensure that your label is the same size as your longest string, or bigger than it.
I have an NSString and want to fit it into a rectangle. The rectangle has a specified size, lets say width=150 and height=30. When the String is short and has only one character, it can be as high as the rectangle. More specific: It can have a big font size. But if the string has too much characters and would exceed the bounds of the rectangle, it must become smaller. More specific: It's font size must become smaller, so that it won't exceed the bounds of the rectangle. Is there a way of doing that without messing around in core graphics?
For some reason, UILabel's adjustsFontSizeToFitWidth Property has no effect. The text keeps beeing small even if there is plently of space.
I've set that to
label.adjustsFontSizeToFitWidth = YES;
but nothing happens. I hope there is another way to do that...
There are several part to UILabel that make this possible, but first you have to know if you want to truncate the string or make the font size smaller to fit in the rectangle.
For both cases you'll want to set the UILabel's numberOfLines property to 0, allowing the label to wrap as much as necessary. Then you'll want to set the frame of the UILabel to match the rectangle you're looking to fit. From there you take one of two paths:
Truncation: Set the lineBreakMode property to UILineBreakModeClip, UILineBreakModeHeadTruncation, UILineBreakModeTailTruncation, or UILineBreakModeMiddleTruncation depending on the truncation behavior you're looking for.
Resizing: Set the lineBreakMode to either UILineBreakModeWordWrap or `UILineBreakModeCharacterWrap' depending on your preference. Then you'll need to enter a loop to figure out the right font size. Start with a reasonable font size (e.g., 12) and:
Set the font property of the UILabel with a UIFont that matches that size
Call - (void) sizeToFit for the UILabel.
Check the frame for the UILabel:
If the frame will fit within the bounds you need it to, you're done
If the frame is still to big, drop the size of the font and repeat the loop
For the latter option you'll want to make sure you're not squeezing the text into oblivion, so you'll want to put a minimum size cap on the font size.
You can get more information from the UILabel and UIFont documentation.
adjustsFontSizeToFitWidth adjusts the font size down, not up.
Set the font on your UILabel to an appropriately large size, and UILabel will shrink it when necessary to fit in its bounds.
Set label font size to desired normal size.
Set label minimum font size to
smallest possible font
(minimumFontSize property)
Set adjustsFontSizeToFitWidth to
YES.
If you need multiple lines, set lineCount to 0 as the other poster noted.
I want to have a tableview create rows that look like this:
value1 item1 container1
value10 item10 container10
value100 item100 container100
value2 item2 container2
What I am trying to show is that the first word (value) will have a set length of 12 and then the second word (item) will have a set length of 10 and then the last word (container) is just tagged on at the end.
I am pulling these from a SQLite database and don't want to use multiple lines, but read in a strictly formatted structure like this.
You can layout a custom UITableViewCell in Interface Builder, where you drag two UILabel views onto the Content View and set their size appropriately (Notice that the letters may vary in width, so even though you know it's 10 chars in length, you don't know the maximum width, please keep that in mind)
Then you just fill the open space at the right of a cell with another UILabel, layout it to cover the open space and set it to autoresize it's width and set the right margin to be fixed.
There are quite a few tutorials available on how to use the custom cell in your tableView, I can recommend you this screencast. It explains how you can initialize the custom cell and how you can access the custom labels.
It sounds like you want something like an old-fashion text display in which then nth character in row zero always lines up the nth character in every row.
Even using carefully positioned labels in a custom tableviewcell, you will have to strictly control the specific font and its size if you want all the characters to line up in fixed width column. You will need a fixed width font to begin with and you will have to set the size precisely.
You might want to consider whether this is necessary. iPhone users are used to propionate width text displays. Very precise columns of text might make it difficult to discern rows. I would test first with just a simple table before spending the time tweaking the columns.