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[自定义不等高的cell]-纯代码Autolayout方式iOS8之后

2019-10-01 16:57
// ViewController.h#import <UIKit/UIKit.h>@interface ViewController : UITableViewController@end// ViewController.m#import "ViewController.h"#import "XMGStatusCell.h"#import "XMGStatus.h"#import "MJExtension.h"@interface ViewController ()/** 所有的微博模型*/@property (nonatomic ,strong) NSArray *statuses;@end@implementation ViewController- (NSArray *)statuses{ if (!_statuses) { _statuses = [XMGStatus mj_objectArrayWithFilename:@"statuses.plist"]; } return _statuses;}NSString *ID = @"status";- viewDidLoad { [super viewDidLoad]; // 注册方法 [self.tableView registerClass:[XMGStatusCell class] forCellReuseIdentifier:ID]; // 大概行高,iOS8之后的技术 self.tableView.rowHeight = UITableViewAutomaticDimension; self.tableView.estimatedRowHeight = 200;}#pragma mark - 数据源方法- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{ return self.statuses.count;}- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{ XMGStatusCell *cell = [tableView dequeueReusableCellWithIdentifier:ID]; // 传递模型数据 cell.status = self.statuses[indexPath.row]; return cell;}@end// 模型数据// XMGStatus.h#import <UIKit/UIKit.h>#define XMGTextFont [UIFont systemFontOfSize:14]#define XMGNameFont [UIFont systemFontOfSize:17]@interface XMGStatus : NSObject/** 图像*/@property (nonatomic ,copy) NSString *icon;/** 昵称*/@property (nonatomic ,copy) NSString *name;/** 内容*/@property (nonatomic ,copy) NSString *text;/** vip*/@property (nonatomic ,assign ,getter=isVip) BOOL vip;/** 配图*/@property (nonatomic ,copy) NSString *picture;@end// XMGStatus.m#import "XMGStatus.h"@implementation XMGStatus@end// XMGStatusCell.h#import <UIKit/UIKit.h>@class XMGStatus;@interface XMGStatusCell : UITableViewCell/** 微博模型*/@property (nonatomic ,strong) XMGStatus *status;@end// XMGStatusCell.m#import "XMGStatusCell.h"#import "XMGStatus.h"//define this constant if you want to use Masonry without the 'mas_' prefix#define MAS_SHORTHAND//define this constant if you want to enable auto-boxing for default syntax#define MAS_SHORTHAND_GLOBALS#import "Masonry.h"@interface XMGStatusCell ()/** 图像*/@property (nonatomic ,weak)UIImageView *iconImageView;/** 昵称*/@property (nonatomic ,weak)UILabel *nameLabel;/** vip*/@property (nonatomic ,weak)UIImageView *vipImageView;/** 正文*/@property (nonatomic ,weak)UILabel *text_Label;/** 配图*/@property (nonatomic ,weak)UIImageView *pictureImageView;@end@implementation XMGStatusCellCGFloat space = 10;// 把所有有可能显示的子控件都先添加进去- (instancetype)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier{ if (self = [super initWithStyle:style reuseIdentifier:reuseIdentifier]) { // 图像 UIImageView *iconImageView = [[UIImageView alloc] init]; [self.contentView addSubview:iconImageView]; self.iconImageView = iconImageView; // 添加约束 [iconImageView makeConstraints:^(MASConstraintMaker *make) { make.left.equalTo(self.contentView.left).offset; make.top.equalTo(self.contentView.top).offset; make.width.equalTo; make.height.equalTo; }]; // 昵称 UILabel *nameLabel = [[UILabel alloc] init]; nameLabel.font = XMGNameFont; [self.contentView addSubview:nameLabel]; self.nameLabel = nameLabel; // 添加约束 [nameLabel makeConstraints:^(MASConstraintMaker *make) { make.left.equalTo(iconImageView.right).offset; make.top.equalTo(iconImageView.top); make.width.lessThanOrEqualTo; }]; // vip UIImageView *vipImageView = [[UIImageView alloc] init]; vipImageView.image = [UIImage imageNamed:@"vip"]; vipImageView.contentMode = UIViewContentModeCenter; [self.contentView addSubview:vipImageView]; self.vipImageView = vipImageView; // 添加约束 [vipImageView makeConstraints:^(MASConstraintMaker *make) { make.left.equalTo(nameLabel.right).offset; make.top.equalTo(iconImageView.top); make.width.equalTo; make.height.equalTo(nameLabel.height); }]; // 正文 UILabel *text_Label = [[UILabel alloc] init]; text_Label.font = XMGTextFont; text_Label.numberOfLines = 0; [self.contentView addSubview:text_Label]; // 手动设置label的文字的最大宽度(目的:为了能够计算label的高度,得到最真实的尺寸) text_Label.preferredMaxLayoutWidth = [UIScreen mainScreen].bounds.size.width - 20; self.text_Label = text_Label; // 添加约束 [text_Label makeConstraints:^(MASConstraintMaker *make) { make.left.equalTo(iconImageView.left); make.top.equalTo(iconImageView.bottom).offset; make.right.equalTo(self.contentView).offset; }]; // 配图 UIImageView *pictureImageView = [[UIImageView alloc] init]; [self.contentView addSubview:pictureImageView]; self.pictureImageView = pictureImageView; // 添加约束 [pictureImageView makeConstraints:^(MASConstraintMaker *make) { make.top.equalTo(text_Label.bottom).offset; make.left.equalTo(iconImageView.left); make.width.equalTo; make.height.equalTo; // 不能加这句,否则会破坏frame的计算 make.bottom.equalTo(self.contentView.bottom).offset; }]; } return self;}// 设置数据- setStatus:(XMGStatus *)status{ _status = status; self.iconImageView.image = [UIImage imageNamed:status.icon]; self.nameLabel.text = status.name; if (status.isVip) { // 是VIP self.vipImageView.hidden = NO; self.nameLabel.textColor = [UIColor orangeColor]; } else { self.vipImageView.hidden = YES; self.nameLabel.textColor = [UIColor blackColor]; } self.text_Label.text = status.text; if (status.picture) { // 有配图 // 更新约束 [self.pictureImageView updateConstraints:^(MASConstraintMaker *make) { make.height.equalTo; }]; [self.pictureImageView updateConstraints:^(MASConstraintMaker *make) { make.bottom.equalTo(self.contentView.bottom).offset; }]; // 设置图片 self.pictureImageView.image = [UIImage imageNamed:status.picture]; } else { // 更新约束 [self.pictureImageView updateConstraints:^(MASConstraintMaker *make) { make.height.equalTo; }]; [self.pictureImageView updateConstraints:^(MASConstraintMaker *make) { make.bottom.equalTo; }]; }}@end

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