计算cell的高度和自动适配高度

来源：互联网发布：2016年贵州旅游数据编辑：程序博客网时间：2024/05/21 11:17
#import "BoyCell.h"#import "Person.h"@implementation BoyCell- (instancetype)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier{    self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];    if (self) {        [self addAllViews];    }    return self;}#pragma mark - 添加全部控件- (void)addAllViews{#define kMargin 10#define kWidth 150#define kHeight 35        self.nameLabel = [[[UILabel alloc] initWithFrame:CGRectMake(kMargin, kMargin, kWidth, kHeight)] autorelease];    [self.contentView addSubview:_nameLabel];        self.phoneLabel = [[[UILabel alloc] initWithFrame:CGRectMake(CGRectGetMaxX(_nameLabel.frame) + kMargin, kMargin, kWidth, kHeight)] autorelease];    [self.contentView addSubview:_phoneLabel];        self.genderLabel = [[[UILabel alloc] initWithFrame:CGRectMake(kMargin, CGRectGetMaxY(_nameLabel.frame) + kMargin, kWidth, kHeight)] autorelease];    [self.contentView addSubview:_genderLabel];        self.ageLabel = [[[UILabel alloc] initWithFrame:CGRectMake(CGRectGetMaxX(_genderLabel.frame) + kMargin, _genderLabel.frame.origin.y, kWidth, kHeight)] autorelease];    [self.contentView addSubview:_ageLabel];        self.introduceLabel = [[[UILabel alloc] initWithFrame:CGRectMake(kMargin, CGRectGetMaxY(_genderLabel.frame) + kMargin, self.frame.size.width - kMargin * 2, kHeight * 2)] autorelease];    _introduceLabel.numberOfLines = 0;    [self.contentView addSubview:_introduceLabel];        //    for (UILabel *label in self.contentView.subviews) {//        label.backgroundColor = [UIColor cyanColor];//    }}#pragma mark 重写Person的setter方法- (void)setPerson:(Person *)person{    if (_person != person) {        [_person release];        _person = [person retain];                // 获取值，并放到Label上显示        _nameLabel.text = person.name;        _phoneLabel.text = person.phoneNumber;        _genderLabel.text = person.gender;        _ageLabel.text = [NSString stringWithFormat:@"%ld", person.age];        _introduceLabel.text = person.introduce;                        // 根据文字计算高度        CGFloat height = [self calcHeightWithPerson:person];                CGRect frame = _introduceLabel.frame;        frame.size.height = height;        _introduceLabel.frame = frame;    }}#pragma mark 计算文字高度- (CGFloat)calcHeightWithPerson:(Person *)person{    CGSize size = CGSizeMake(_introduceLabel.frame.size.width, 2000);    NSDictionary *dict = @{                           NSFontAttributeName : _introduceLabel.font                           };    /*     1.在这个大小范围内进行计算     2.计算高度需要的枚举值     3.字典，包含文字的字体大小     4.上下文对象，此处设置为空     */    CGRect rect = [person.introduce boundingRectWithSize:size options:NSStringDrawingUsesLineFragmentOrigin attributes:dict context:nil];        return rect.size.height;}#pragma mark 根据person计算出celld高度+ (CGFloat)cellHeightWithPerson:(Person *)person{    // 创建一个当前类的对象，用来使用上面计算高度的方法    BoyCell *boyCell = [[BoyCell new] autorelease];    // 通过方法，计算出自我介绍的高度    CGFloat height = [boyCell calcHeightWithPerson:person];    // 返回整个cell的高度    return height + 110;}- (void)awakeFromNib {    }- (void)setSelected:(BOOL)selected animated:(BOOL)animated {    [super setSelected:selected animated:animated];    }#pragma mark - 重写#pragma mark dealloc- (void)dealloc{    [_nameLabel release];    [_phoneLabel release];    [_genderLabel release];    [_ageLabel release];    [_introduceLabel release];        [_person release];        [super dealloc];}
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