iOS dynamically set the height of the LBL text label

This article to share is the iOS dynamically set LBL text label height width of the method, a total of 3 methods, the small partners according to their own project needs free choice.

The code is as follows:

Txtlbl.font = [Uifont boldsystemfontofsize:14.0f];

Txtlbl.numberoflines = 0;

NSString *str = @ " Albania decides to set up science and technology network to leave TV series two mainland high tech got lost. Day I countdown left I said the teacher Kentucky Franksa Jiangdong Elders will Roger Federer said Albania decided to set up a network of science and technology to leave the TV show two of the mainland High-tech has disappeared day I countdown to leave my branch said the teacher, Kentucky Franksa Jiangdong elders will Federer said ";

Cgsize size = [str sizeWithFont:txtlbl.font constrainedtosize:cgsizemake (txtlbl.frame.size.width, Maxfloat) Linebreakmode:nslinebreakbywordwrapping];

Reset the size of the TXTLBL based on the results

[Txtlbl Setframe:cgrectmake (7, 0, 310, size.height)];

Txtlbl.text = str;

Method Two:

The code is as follows:

Ios7_api_ determines the label width according to the word Word character dynamic

Sets the font for the label Helveticaneue Courier

Uifont *fnt = [Uifont fontwithname:@ "Helveticaneue" size:24.0f];

_namelabel.font = FNT;

According to the font to get nsstring size

Cgsize size = [_namelabel.text sizewithattributes:[nsdictionary dictionarywithobjectsandkeys:fnt, Nsfontattributename, Nil]];

The h of the name

CGFloat Nameh = size.height;

Name of the W

CGFloat Namew = size.width;

_namelabel.frame = CGRectMake (0, 0, Namew,nameh);

Method Three:

The code is as follows:

Width W

CGFloat contentw = self.bounds.size.width-_content.frame.origin.x-kmargin;

Label's font helveticaneue Courier

Uifont *fnt = [Uifont fontwithname:@ "Helveticaneue" size:18.0f];

_content.font = FNT;

_content.numberoflines = 0;

_content.linebreakmode = nslinebreakbywordwrapping;

IOS7 replaces the SizeWithFont:constrainedToSize:lineBreakMode in obsolete iOS6 with the following methods: Method

CGRect tmprect = [_content.text boundingrectwithsize:cgsizemake (CONTENTW, 1000) options: Nsstringdrawinguseslinefragmentorigin Attributes:[nsdictionary Dictionarywithobjectsandkeys:fnt, Nsfontattributename, nil] context:nil];

Height h

CGFloat contenth = tmpRect.size.height;

NSLog (@ "Adjusted display width:%f, display height:%f" contentw,contenth);

_content.frame = CGRectMake (0, 0, contentw,contenth);