前言:开发中难免会遇到设置lable根据文字来调整高度和换行,具体做法如下.
sizethatfits方法
- 设置lable的frame,numberofLines,字体等.
UILabel *carTypeLN = [[UILabel alloc]init];
carTypeLN.frame = CGRectMake(margin+((margin+width)*lie), (row*(height+topMargin)), width,height);
- 根据本身的view的frame,对lable的frame进行适配.
carTypeLN.textAlignment = NSTextAlignmentCenter;
carTypeLN.textColor = HEX_COLOR(kColor_Flag_GrayDark);
carTypeLN.backgroundColor = HEX_COLOR(kColor_BG_white);
carTypeLN.font = [UIFont systemFontOfSize:13];
carTypeLN.text = types[i];
CGSize size = [self sizeThatFits:CGSizeMake(carTypeLN.frame.size.height, MAXFLOAT)];
CGRect frame = carTypeLN.frame;
frame.size.height = size.height;
[carTypeLN setFrame:frame];
[self addSubview:carTypeLN];
carTypeLN.numberOfLines = 0;
根据lable的文字以及font,对特定的宽度适配出符合该段文字的高度,该种方法比较灵活.
CGSize labelSize = [self.contentLabel.text boundingRectWithSize:CGSizeMake([UIScreen mainScreen].bounds.size.width-130, 10000) options:NSStringDrawingUsesFontLeading|NSStringDrawingUsesDeviceMetrics|NSStringDrawingUsesLineFragmentOrigin|NSStringDrawingTruncatesLastVisibleLine attributes:@{NSFontAttributeName:self.contentLabel.font} context:nil].size;
