获取UILabel宽度的方法

- (CGFloat)heightOfDetailView{

    CGFloat left = 13;

    CGRect maxBounds = CGRectMake(left, 0, SCREEN_WIDTH - left * 2, MAXFLOAT);

    UILabel *label = [UILabel new];

    label.font = [UIFont systemFontOfSize:12];

    label.text = _label.text;

    label.numberOfLines = 0;

    CGRect bounds = [label textRectForBounds:maxBounds limitedToNumberOfLines:0];

    return bounds.size.height;

}

获取UILabel宽度的方法

原文：http://www.cnblogs.com/lz465350/p/5622053.html