调整UILabel的大小以适应字体大小和文本

Posted 2021-02-25

This code will resize a UILabel so that the label is as small as it can be in both width and height, based on the text in it and the font used.

frame = CGRectMake(160, labelTitle2.frame.origin.y + labelTitle2.frame.size.height + 136, 270, 25);					
			UILabel *labelContent3 = [[UILabel alloc] initWithFrame: frame];		
			labelContent3.text = @"click here.";
			labelContent3.textColor = UIColorFromRGB(0x606060);
			labelContent3.font = [UIFont fontWithName:@"HelveticaNeue-Bold" size:13];		
			labelContent3.backgroundColor = [UIColor clearColor];
			labelContent3.textAlignment = UITextAlignmentLeft;		
			labelContent3.numberOfLines = 0;
			maximumLabelSize = CGSizeMake(270,9999);
			expectedLabelSize = [labelContent3.text sizeWithFont:labelContent3.font 
											   constrainedToSize:maximumLabelSize 
												   lineBreakMode:labelContent3.lineBreakMode]; 
			newFrame = labelContent3.frame;
			newFrame.size.height = expectedLabelSize.height;
			labelContent3.frame = newFrame;
			[cell.contentView addSubview:labelContent3];
			[labelContent3 release];