Render UILabel in multiple line in iOS5? - objective-c

Question

I'm trying to render my UILabel in multiple line.
i've tried:
CGRect rect2 = CGRectMake(100, 45, 150, 60);
FontLabel *addresLbl1 = [[FontLabel alloc] initWithFrame:rect2
fontName:#"arial" pointSize:12.0f];
//#006000
addresLbl1.textColor = [UIColor colorWithRed:84/255.0 green:84/255.0 blue:84/255.0 alpha:1.0];
addresLbl1.text = #"401 King St\\nToronto, Ontario, M5V1K1\\nCanada";
//[addresLbl1 setTextAlignment:UITextAlignmentCenter];
addresLbl1.backgroundColor = nil;
addresLbl1.opaque = NO;
[cell.contentView addSubview:addresLbl1];
[addresLbl1 release];
but it is rendered as 401 King St\nToronto, Ontario, M5V1K1\nCanada
Note that this label is added on cell of UITableView.
I need new line from the position of '\n' in string and this string will come from server, so position of '\n'may vary

Answer 1

You shouldn't use doubble backslashes.
\\ is the code used for \, so \\n will be parsed and printed as \n
So you're code should be like this:
addresLbl1.text = #"401 King St\nToronto, Ontario, M5V1K1\nCanada";
addresLbl1.numberOfLines = 0;

Answer 2

By default UILabel sets its property numberoflines to 1, which means your text will be rendered in one line. Try to set that property to 0, as indicated by the documentation
This property controls the maximum number of lines to use in order to
fit the label’s text into its bounding rectangle. The default value
for this property is 1. To remove any maximum limit, and use as many
lines as needed, set the value of this property to 0.
If you constrain your text using this property, any text that does not
fit within the maximum number of lines and inside the bounding
rectangle of the label is truncated using the appropriate line break
mode.
When the receiver is resized using the sizeToFit method, resizing
takes into account the value stored in this property. For example, if
this property is set to 3, the sizeToFit method resizes the receiver
so that it is big enough to display three lines of text.

Answer 3

you need to first set numberOfLines to 0, and then
unichar chr[1] = {'\n'};
NSString *singleCR = [NSString stringWithCharacters:(const unichar *)chr length:1];
[yourLabel setText:[NSString stringWithFormat:#"new%#line",singleCR]];
this will ensure what you wanted.

Answer 4

For multiple lines you can use UILabel property numberOfLines as
label.numberOfLines = 3;
In your case your text can fit only in one line so if you want it in multiple lines better you should define 3 different labels.