I want to draw a text with different colors and the only way that I've found for do it is to split every piece of string-color in differents UILabels, so currently now I have four UILabels one after another, lets say, label1, label2, label3 and label4.
The problem with that is with the size and the position of every labels, I've not found an automatic way for do it.
The only way is:
Set the text inside all the labels
Ask for the width of all the labels with this new text
Resize all the labels with this new width
Move label2 to label1.x + label1.width, and so on
This is really the only way in iPhone for do that?
I came from Android and there is a "wrap_content" property for every view and "relative_layouts" where you can define something like.. put label2 rightOf label1. So I'm looking of something simple and automatic like that, but in iPhone.
Thanks!
Depending on your application, you might want to consider a single UIWebView instead. Then you can style the content of it with HTML and CSS.
Related
I have an UIView that it should contains UILabels, and these UILabels are not fixed if an UILabel is nil, i don't display it, and if is not i must resize the UILabel to fit text (they can be 2 ligne) and put it under another UILabel, and after i must resize the UIView container for the amount of this UILabels. this the Screen Shot that i want to do programmatically:
UILabels can fit large amounts of text by automatically making the font smaller (see the minimum font size value in the Interface Builder). Instead of labels, I would use UITextViews. They fit large amounts of text by allowing the user to scroll. To make them hidden, use change the hidden selector attribute of the UITextViews. Because the UITextViews will never change in size, you can easily calculate how much to decrease the height of the UIView container by per UITextView. Hope this helps!
I think you have to calculate the height of the labels (more specifically, the addition from the original height) one by one. Of course you should be able to do this systematically by having all the labels in an array.
You can use [NSString sizeWithFont:] methods (there are several with similar names) to calculate the height.
http://developer.apple.com/library/ios/#documentation/UIKit/Reference/NSString_UIKit_Additions/Reference/Reference.html
If you want to keep the same font size then you can calculate the frame size for the label at run time depending upon the length of the text..
See here
You need to used following two properties of label-
lineBreakMode
numberOfLine
when you use both of these properties then you will achieve what you want.
I have this interface with multiple UILabels.
On view loading i populate white labelled values with some data from a db.
The problem is, some of that fields are potentially too long for the interface, so i'd like to compute the total height of one label once the text is word wrapped and reposition the 2 labels below (shifting the Y coordinate) accordingly to the previous label's height.
All of this should go inside a UIScrollView to let the user scroll those labels vertically.
Any chance i can do this easily with some control i still don't know, or do i have to do it manually?
Thanks
You'll need to use the NSString UIKit Additions to compute the height you need to set on your UILabel, and then adjust the other controls appropriately.
Specifically, I think you want to use sizeWithFont:forWidth:lineBreakMode: to get the rect for your UILabel.
Alternatively, you could use a UIWebView and display the information as HTML. I don't know if it's necessarily less work, but you'll get a layout that automatically adjusts to the size of its contents.
How can I add an indent or offset to text inside a UILabel? It needs to be a specific pixel size, independent of the font size.
you could create another UILabel and then set each label's frames to be a certain width apart, that way it could be done dynamically rather easily if thats what you are trying to accomplish.
I'm trying to figure out how to replicate the UITableViewCellStyleValue2 style so that the detail text can be multiple lines - as seen in the 'address' cells in the Contacts app. Like the Contacts app, some of the fields (like street name) are optional; so it would show say 3 lines instead of 4, if the street was not nil.
I'm I missing a trick, or do I have to create a custom cell in IB? How to ensure the text and detail text labels line-up with other UITableViewCellStyleValue2 cells?
Thanks for any tips.
Another round of searching found this:
http://the-lost-beauty.blogspot.com/2009/11/multi-line-uitableviewcell-using.html
Quickly tried it, and it works - just need to set the font size down a bit.
It sounds to me like you'll have to create a custom UITableCell. The only way to ensure the text lines up is to get the margin/text width values correct, which can be done via trial and error, or using a measuring tool such as xScope.
Create a custom cell for you table and place a UILabel and a UITextView inside it. Position the label & text view to match their x,y positions to the other cells you are using in that table. You insert "\n" in the textview's text wherever you want line breaks to occur. You resize the textview height depending on the number of lines in the textview using something like:
CGRect frame = yourTextView.frame;
frame.size.height = yourTextView.contentSize.height;
yourTextView.frame = frame;
return frame.size.height + 20.0; // Pad the cell's height as necessary for your applicaion
I also had the problem that the textLabel and the detailTextLabel had a different position. Solution: For the detailTextLabel use the same height like the textLabel (e.g. 13)
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.