前段时间发了一篇关于Cell自适应高度的文章,文章结尾承诺会更新一篇
带有类似朋友圈的评论框的布局
的文章。其实也不算是一种承诺,我自己更认为是给自己留的一个homework。哈哈哈,好了,废话到此为止。
结构,项目结构就是这么简单的一个结构。
Tools里有两个小工具:
1、HYBMasonryAutoCellHeight,来自标哥的这个工具
2、LYMasonryAutoFooterViewHeight,是我仿照标哥这个工具照抄的,不想照抄的朋友看这里
Model就不用说了,解析数据的
View也是,自定义的一些view
看下效果图吧
- 其实我个效果就是把我前面发过的几个文章结合了,整理整理放到一起,就是这样的效果。接下来简单说一下吧。
1、Model
Model其实很简单,就是把数据源的字段生成属性,没什么可说的,代码如下:
#import <Foundation/Foundation.h>
NS_ASSUME_NONNULL_BEGIN
@interface FriendsCircleModel : NSObject
@property (nonatomic, strong) NSString *userPic;
@property (nonatomic, strong) NSString *userName;
@property (nonatomic, strong) NSString *publicTime;
@property (nonatomic, strong) NSString *content;
@property (nonatomic, assign) NSInteger imgCount;
@property (nonatomic, strong) NSArray *commentCount;
@end
NS_ASSUME_NONNULL_END
2、View
直接上代码
- FriendCircleCell.h
#import <UIKit/UIKit.h>
NS_ASSUME_NONNULL_BEGIN
@class FriendsCircleModel;
@interface FriendCircleCell : UITableViewCell
-(void)setModel:(FriendsCircleModel *)model;
@end
NS_ASSUME_NONNULL_END
- FriendCircleCell.m
#import "FriendCircleCell.h"
#import "FriendsCircleModel.h"
#import "FriendCircleImgView.h"
@interface FriendCircleCell ()
@property (nonatomic, strong) UIView *vLine;
@property (nonatomic, strong) UIImageView *ivUser;
@property (nonatomic, strong) UILabel *lName;
@property (nonatomic, strong) UILabel *lTime;
@property (nonatomic, strong) UILabel *lContent;
@property (nonatomic, strong) FriendCircleImgView *fcIView;
@end
@implementation FriendCircleCell
-(instancetype)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier{
self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
if (self) {
self.contentView.backgroundColor = [UIColor whiteColor];
self.selectionStyle = UITableViewCellSelectionStyleNone;
[self createUI];//创建UI
}
return self;
}
#pragma mark - 创建UI
-(void)createUI{
//上划线
_vLine = [UIView new];
_vLine.backgroundColor = [UIColor groupTableViewBackgroundColor];
[self addSubview:_vLine];
//头像
_ivUser = [UIImageView new];
_ivUser.clipsToBounds = YES;
_ivUser.contentMode = UIViewContentModeScaleAspectFill;
[self addSubview:_ivUser];
//用户名
_lName = [UILabel new];
_lName.textColor = [UIColor grayColor];
_lName.textAlignment = NSTextAlignmentLeft;
_lName.font = [UIFont systemFontOfSize:14];
[self addSubview:_lName];
//时间
_lTime = [UILabel new];
_lTime.textColor = [UIColor lightGrayColor];
_lTime.textAlignment = NSTextAlignmentLeft;
_lTime.font = [UIFont systemFontOfSize:12];
[self addSubview:_lTime];
//内容
_lContent = [UILabel new];
_lContent.textColor = [UIColor blackColor];
_lContent.textAlignment = NSTextAlignmentLeft;
_lContent.font = [UIFont systemFontOfSize:14];
_lContent.numberOfLines = 0;
[self addSubview:_lContent];
//必须设置UILabel的最大宽度
_lContent.preferredMaxLayoutWidth = [UIScreen mainScreen].bounds.size.width - 90;
//图片
_fcIView = [[FriendCircleImgView alloc]initWithMaxWidth:[UIScreen mainScreen].bounds.size.width - 90];
[self addSubview:_fcIView];
//下面两句必须要写
self.hyb_lastViewInCell = _fcIView;//最后一个视图
}
#pragma mark - 创建布局
-(void)createLayout{
//上划线
[_vLine mas_makeConstraints:^(MASConstraintMaker *make) {
make.left.top.right.mas_equalTo(0);
make.height.mas_equalTo(1);
}];
//头像
[_ivUser mas_makeConstraints:^(MASConstraintMaker *make) {
make.left.top.mas_equalTo(20);
make.size.mas_equalTo(CGSizeMake(40, 40));
}];
//用户名
[_lName mas_makeConstraints:^(MASConstraintMaker *make) {
make.left.mas_equalTo(self.ivUser.mas_right).offset(10);
make.top.mas_equalTo(self.ivUser.mas_top);
make.height.mas_equalTo(20);
make.right.mas_equalTo(self.mas_right).offset(-20);
}];
//时间
[_lTime mas_makeConstraints:^(MASConstraintMaker *make) {
make.left.mas_equalTo(self.lName.mas_left);
make.top.mas_equalTo(self.lName.mas_bottom).offset(5);
make.height.mas_equalTo(10);
}];
//内容
[_lContent mas_makeConstraints:^(MASConstraintMaker *make) {
make.left.mas_equalTo(self.lName.mas_left);
make.top.mas_equalTo(self.lTime.mas_bottom).offset(10);
make.right.mas_equalTo(self.mas_right).offset(-20);
}];
//图片
[_fcIView mas_makeConstraints:^(MASConstraintMaker *make) {
make.left.mas_equalTo(self.lContent.mas_left);
make.top.mas_equalTo(self.lContent.mas_bottom).offset(20);
make.right.mas_equalTo(self.lContent.mas_right);
}];
}
-(void)layoutSubviews{
[super layoutSubviews];
[self createLayout];//创建布局
}
#pragma mark - 添加数据源
-(void)setModel:(FriendsCircleModel *)model{
_ivUser.backgroundColor = [UIColor groupTableViewBackgroundColor];
_lName.text = model.userName;
_lTime.text = model.publicTime;
_lContent.text = model.content;
_fcIView.buttonCount = model.imgCount;
//如果没有图片,改变图片视图距离底部边距
if (model.imgCount == 0) {
self.hyb_bottomOffsetToCell = 0;//最后一个视图距离底边距,默认为0
}else{
self.hyb_bottomOffsetToCell = 10;//最后一个视图距离底边距,默认为0
}
}
- (void)setSelected:(BOOL)selected animated:(BOOL)animated {
[super setSelected:selected animated:animated];
}
@end
FriendCircleImgView
这个小工具之前发过文章,文章地址在这里。
- FriendCircleImgView.h
#import <UIKit/UIKit.h>
NS_ASSUME_NONNULL_BEGIN
@interface FriendCircleImgView : UIView
///初始化的时候传入最大宽度,方便布局使用
-(instancetype)initWithMaxWidth:(CGFloat)width;
///本次需要添加宫格的个数
@property (nonatomic, assign) NSInteger buttonCount;
@end
NS_ASSUME_NONNULL_END
- FriendCircleImgView.m
#import "FriendCircleImgView.h"
typedef enum : NSUInteger {
FCButtonLayoutStyleOne,//一张图片
FCButtonLayoutStyleTwo,//两张图片
FCButtonLayoutStyleFour,//四张图片
FCButtonLayoutStyleOther,//其他
} FCButtonLayoutStyle;
@interface FriendCircleImgView ()
///装多宫格的数组,复用视图
@property (nonatomic, strong) NSMutableArray <UIButton*>* buttons;
///容器视图 来自适应九宫格高度
@property (nonatomic, strong) UIView * containerView;
///容器视图的底部约束
@property (nonatomic, weak) MASConstraint * containerViewConstraintbottom;
///button布局类型
@property (nonatomic) FCButtonLayoutStyle layoutStyle;
///最大宽度
@property (nonatomic) CGFloat maxWidth;
@end
@implementation FriendCircleImgView
-(void)setButtonCount:(NSInteger)buttonCount{
//有图片的情况
if (buttonCount != 0) {
if (buttonCount == 1) {
self.layoutStyle = FCButtonLayoutStyleOne;
}else if (buttonCount == 2){
self.layoutStyle = FCButtonLayoutStyleTwo;
}else if (buttonCount == 4){
self.layoutStyle = FCButtonLayoutStyleFour;
}else{
self.layoutStyle = FCButtonLayoutStyleOther;
}
//每次重新创建宫格的个数 从容器视图中移除
[self.containerView.subviews enumerateObjectsUsingBlock:^(UIButton * _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
if (!obj.hidden) {
[obj removeFromSuperview];
obj.hidden = true;
}
}];
//循环从初始化list中取出在添加到容器视图当中
for (int i = 0; i< buttonCount; i++) {
UIButton *btn = self.buttons[i];
[self.containerView addSubview:btn];
btn.hidden = false;
}
//间距x,y
CGFloat marginX = 10.0;
CGFloat marginY = marginX;
//一张图片的情况
if (self.layoutStyle == FCButtonLayoutStyleOne) {
//button宽度
CGFloat btnWidth = self.maxWidth - marginX * 2;
UIButton *subv = self.containerView.subviews[0];
subv.backgroundColor = [UIColor colorWithRed:arc4random_uniform(255)/255.0 green:arc4random_uniform(255)/255.0 blue:arc4random_uniform(255)/255.0 alpha:1];
[subv mas_updateConstraints:^(MASConstraintMaker *make){
make.left.mas_equalTo(marginX);
make.top.mas_equalTo(marginY);
make.size.mas_equalTo(CGSizeMake(btnWidth, btnWidth));
}];
}
//两张图片的情况
if (self.layoutStyle == FCButtonLayoutStyleTwo) {
//button宽度
CGFloat btnWidth = (self.maxWidth - marginX * 3) / 2;
for (int i = 0; i < self.containerView.subviews.count ; i++) {
UIButton *subv = self.containerView.subviews[i];
subv.backgroundColor = [UIColor colorWithRed:arc4random_uniform(255)/255.0 green:arc4random_uniform(255)/255.0 blue:arc4random_uniform(255)/255.0 alpha:1];
[subv mas_updateConstraints:^(MASConstraintMaker *make){
make.left.mas_equalTo(marginX + i % 2 * (btnWidth + marginX));
make.top.mas_equalTo(marginY);
make.size.mas_equalTo(CGSizeMake(btnWidth, btnWidth));
}];
}
}
//四张图片的情况
if (self.layoutStyle == FCButtonLayoutStyleFour) {
//button宽度
CGFloat btnWidth = (self.maxWidth - marginX * 3) / 2;
for (int i = 0; i < self.containerView.subviews.count ; i++) {
UIButton *subv = self.containerView.subviews[i];
subv.backgroundColor = [UIColor colorWithRed:arc4random_uniform(255)/255.0 green:arc4random_uniform(255)/255.0 blue:arc4random_uniform(255)/255.0 alpha:1];
[subv mas_updateConstraints:^(MASConstraintMaker *make){
make.left.mas_equalTo(marginX + i % 2 * (btnWidth + marginX));
make.top.mas_equalTo(marginY + i / 2 * (btnWidth + marginY));
make.size.mas_equalTo(CGSizeMake(btnWidth, btnWidth));
}];
}
}
//其他情况
if (self.layoutStyle == FCButtonLayoutStyleOther) {
//button宽度
CGFloat btnWidth = (self.maxWidth - marginX * 4) / 3;
for (int i = 0; i < self.containerView.subviews.count ; i++) {
UIButton *subv = self.containerView.subviews[i];
subv.backgroundColor = [UIColor colorWithRed:arc4random_uniform(255)/255.0 green:arc4random_uniform(255)/255.0 blue:arc4random_uniform(255)/255.0 alpha:1];
[subv mas_updateConstraints:^(MASConstraintMaker *make){
make.left.mas_equalTo(marginX + i % 3 * (btnWidth + marginX));
make.top.mas_equalTo(marginY + i / 3 * (btnWidth + marginY));
make.size.mas_equalTo(CGSizeMake(btnWidth, btnWidth));
}];
}
}
//卸载上一次容器视图的底部约束
if (self.containerViewConstraintbottom) {
[self.containerViewConstraintbottom uninstall];
}
//重新生成容器视图的底部约束 参考最后一个宫格的底部
[self.containerView mas_makeConstraints:^(MASConstraintMaker *make) {
self.containerViewConstraintbottom = make.bottom.equalTo(self.containerView.subviews.lastObject).offset(marginX);
}];
[self mas_makeConstraints:^(MASConstraintMaker *make) {
make.bottom.equalTo(self.containerView.mas_bottom);
}];
}
//无图片的情况
else{
//每次重新创建宫格的个数 从容器视图中移除
[self.containerView.subviews enumerateObjectsUsingBlock:^(UIButton * _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
if (!obj.hidden) {
[obj removeFromSuperview];
obj.hidden = true;
}
}];
//卸载上一次容器视图的底部约束
if (self.containerViewConstraintbottom) {
[self.containerViewConstraintbottom uninstall];
}
//重新生成容器视图的底部约束 参考最后一个宫格的底部
[self.containerView mas_makeConstraints:^(MASConstraintMaker *make) {
self.containerViewConstraintbottom = make.bottom.equalTo(self.containerView.mas_top).offset(0);
}];
[self mas_makeConstraints:^(MASConstraintMaker *make) {
make.bottom.equalTo(self.containerView.mas_bottom);
}];
}
}
-(instancetype)initWithMaxWidth:(CGFloat)width{
self = [super init];
if (self) {
self.maxWidth = width;
self.backgroundColor = [UIColor groupTableViewBackgroundColor];
for (int i = 0; i < 9; i++) {
UIButton * button = [UIButton new];
button.hidden = true;
[self.buttons addObject:button];
}
[self addSubview:self.containerView];
[self.containerView mas_makeConstraints:^(MASConstraintMaker *make) {
make.left.top.right.equalTo(self);
}];
}
return self;
}
/// MARK: ---- 懒加载
-(NSMutableArray *)buttons {
if (!_buttons) {
_buttons = [NSMutableArray array];
}
return _buttons;
}
-(UIView *)containerView {
if (!_containerView) {
_containerView = [UIView new];
}
return _containerView;
}
@end
- FriendCircleFooterView.h
#import <UIKit/UIKit.h>
NS_ASSUME_NONNULL_BEGIN
@class FriendsCircleModel;
@interface FriendCircleFooterView : UITableViewHeaderFooterView
-(void)setModel:(FriendsCircleModel *)model;
@end
NS_ASSUME_NONNULL_END
- FriendCircleFooterView.m
#import "FriendCircleFooterView.h"
#import "FriendsCircleModel.h"
@interface FriendCircleFooterView ()
@property (nonatomic, strong) UIView *ivbg;
@end
@implementation FriendCircleFooterView
-(instancetype)initWithReuseIdentifier:(NSString *)reuseIdentifier{
self = [super initWithReuseIdentifier:reuseIdentifier];
if (self) {
self.contentView.backgroundColor = [UIColor whiteColor];
[self createUI];//创建UI
}
return self;
}
#pragma mark - 创建UI
-(void)createUI{
_ivbg = [UIView new];
_ivbg.backgroundColor = [UIColor groupTableViewBackgroundColor];
[self.contentView addSubview:_ivbg];
}
-(void)setModel:(FriendsCircleModel *)model{
//先移除self.vbg的所有子视图
[self.ivbg.subviews enumerateObjectsUsingBlock:^(UIButton * _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
[obj removeFromSuperview];
}];
//再重新创建新的子视图
[self createSubView:model];
}
#pragma mark - 评论View
-(void)createSubView:(FriendsCircleModel *)model{
__weak typeof(self) weakSelf = self;
//评论数不为0的时候
if (model.commentCount.count != 0) {
UILabel *lastLabel = nil;
for (int i = 0; i < model.commentCount.count; i ++) {
UILabel *lComment = [UILabel new];
lComment.text = model.commentCount[i];
lComment.textColor = [UIColor blackColor];
lComment.textAlignment = NSTextAlignmentLeft;
lComment.font = [UIFont systemFontOfSize:12];
lComment.numberOfLines = 0;
[weakSelf.ivbg addSubview:lComment];
//必须设置UILabel视图的最大宽度
lComment.preferredMaxLayoutWidth = [UIScreen mainScreen].bounds.size.width - 110;
[lComment mas_updateConstraints:^(MASConstraintMaker *make) {
if (lastLabel) {
make.top.mas_equalTo(lastLabel.mas_bottom).offset(5);
} else {
make.top.mas_equalTo(weakSelf.ivbg.mas_top).offset(20);
}
make.left.mas_equalTo(weakSelf.ivbg.mas_left).offset(10);
make.right.mas_equalTo(weakSelf.ivbg.mas_right).offset(-10);
}];
lastLabel = lComment;
}
[_ivbg mas_updateConstraints:^(MASConstraintMaker *make) {
make.left.mas_equalTo(weakSelf.contentView.mas_left).offset(70);
make.top.mas_equalTo(weakSelf.contentView.mas_top);
make.right.mas_equalTo(weakSelf.contentView.mas_right).offset(-20);
make.bottom.mas_equalTo((weakSelf.ivbg.subviews.lastObject).mas_bottom).offset(10);
}];
}
//评论数为0的时候
else{
[_ivbg mas_updateConstraints:^(MASConstraintMaker *make) {
make.edges.mas_equalTo(weakSelf.contentView);
}];
}
//下面两句必须要写
self.ly_lastViewInView = _ivbg;//最后一个视图
self.ly_bottomOffsetToView = 0;//最后一个视图距离底边距,默认为0
}
@end
3、Controller
控制器里面就是创建了TableView、数据源和自适应高度工具的用法。
值得说一下的是UITableView的UITableViewHeaderFooterView
的复用的问题,这点肯定被很多人都忽视了,都知道cell可以复用,其实HeaderFooterView也可以这么用,不过这些都是看需求和自己处理逻辑的方式来定的。用法和cell的复用一毛一样。
#import "FriendsCircleController.h"
#import "FriendCircleCell.h"
#import "FriendsCircleModel.h"
#import "FriendCircleFooterView.h"
@interface FriendsCircleController ()<UITableViewDelegate,UITableViewDataSource>
@property (nonatomic, strong) UITableView *tvList;
@property (nonatomic, strong) NSMutableArray *dataSource;
@end
@implementation FriendsCircleController
-(void)viewDidLayoutSubviews{
[super viewDidLayoutSubviews];
[_tvList mas_makeConstraints:^(MASConstraintMaker *make) {
make.edges.mas_equalTo(self.view);
}];
}
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view.
[self.view addSubview:self.tableView];
for (NSDictionary *dict in [self arrayDataSource]) {
FriendsCircleModel *model = [FriendsCircleModel new];
model.userPic = dict[@"user_pic"];
model.userName = dict[@"user_name"];
model.publicTime = dict[@"public_time"];
model.content = dict[@"content"];
model.imgCount = [dict[@"img_count"] integerValue];
model.commentCount = dict[@"comment_count"];
[self.dataSource addObject:model];
}
[_tvList reloadData];
}
#pragma mark - TableView
-(UITableView *)tableView{
if (!_tvList) {
_tvList = [[UITableView alloc]initWithFrame:CGRectZero style:UITableViewStyleGrouped];
_tvList.delegate = self;
_tvList.dataSource = self;
_tvList.separatorStyle = UITableViewCellSeparatorStyleNone;
_tvList.backgroundColor = [UIColor whiteColor];
}
return _tvList;
}
#pragma mark - TableViewDataSource
-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView{
return self.dataSource.count;
}
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
return 1;
}
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
static NSString *ident = @"Cell";
FriendCircleCell *cell = [tableView dequeueReusableCellWithIdentifier:ident];
if (!cell) {
cell = [[FriendCircleCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:ident];
}
FriendsCircleModel *model = self.dataSource[indexPath.section];
[cell setModel:model];
return cell;
}
#pragma mark - TableViewDelegate
-(CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath{
CGFloat height = [FriendCircleCell hyb_heightForTableView:tableView config:^(UITableViewCell *sourceCell) {
FriendCircleCell *regCell = (FriendCircleCell *)sourceCell;
// 配置数据
FriendsCircleModel *model = self.dataSource[indexPath.section];
[regCell setModel:model];
} cache:^NSDictionary *{
return @{kHYBCacheUniqueKey: [NSString stringWithFormat:@"%ld",indexPath.section],
kHYBCacheStateKey : @"cell",
// 如果设置为YES,若有缓存,则更新缓存,否则直接计算并缓存s
// 主要是对社交这种有动态评论等不同状态,高度也会不同的情况的处理
kHYBRecalculateForStateKey : @(NO) // 标识要重新更新
};
}];
return height;
}
-(UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section{
return [UIView new];
}
-(CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section{
return 0.0001;
}
-(UIView *)tableView:(UITableView *)tableView viewForFooterInSection:(NSInteger)section{
static NSString *identF = @"FView";
FriendCircleFooterView *vFooter = [tableView dequeueReusableHeaderFooterViewWithIdentifier:identF];
if (!vFooter) {
vFooter = [[FriendCircleFooterView alloc]initWithReuseIdentifier:identF];
}
FriendsCircleModel *model = self.dataSource[section];
[vFooter setModel:model];
return vFooter;
}
-(CGFloat)tableView:(UITableView *)tableView heightForFooterInSection:(NSInteger)section{
CGFloat height = [FriendCircleFooterView ly_heightForTableView:tableView config:^(UITableViewHeaderFooterView *sourceView) {
FriendCircleFooterView *regCell = (FriendCircleFooterView *)sourceView;
// 配置数据
FriendsCircleModel *model = self.dataSource[section];
[regCell setModel:model];
} cache:^NSDictionary *{
return @{kLYCacheUniqueKey: [NSString stringWithFormat:@"%ld",section],
kLYCacheStateKey : @"headerView",
// 如果设置为YES,若有缓存,则更新缓存,否则直接计算并缓存s
// 主要是对社交这种有动态评论等不同状态,高度也会不同的情况的处理
kLYRecalculateForStateKey : @(NO) // 标识要重新更新
};
}];
return height;
}
#pragma mark - 数据源
-(NSArray *)arrayDataSource{
return @[@{@"user_pic":@"",
@"user_name":[NSString stringWithFormat:@"iOS攻城狮%u",arc4random() % 1000],
@"public_time":[NSString stringWithFormat:@"%u-%u-%u",arc4random() % 1000,arc4random() % 13,arc4random() % 30],
@"content":@"今天阳光明媚,今夜多云转晴",
@"img_count":@(arc4random() % 10),
@"comment_count":@[@"啊啊啊啊啊",
@"不不不不不不不不"]},
@{@"user_pic":@"",
@"user_name":[NSString stringWithFormat:@"iOS攻城狮%u",arc4random() % 1000],
@"public_time":[NSString stringWithFormat:@"%u-%u-%u",arc4random() % 1000,arc4random() % 13,arc4random() % 30],
@"content":@"十年生死两茫茫,不思量,自难忘。千里孤坟,无处话凄凉。纵使相逢应不识,尘满面,鬓如霜。",
@"img_count":@(arc4random() % 10),
@"comment_count":@[@"sas挨打的"]},
@{@"user_pic":@"",
@"user_name":[NSString stringWithFormat:@"iOS攻城狮%u",arc4random() % 1000],
@"public_time":[NSString stringWithFormat:@"%u-%u-%u",arc4random() % 1000,arc4random() % 13,arc4random() % 30],
@"content":@"道人自嫌三世将,弃家十年今始壮。玉骨犹含富贵余,漆瞳已照人天上。去年相见古长干,众中矫矫如翔鸾。今年过我江西寺,病瘦已作霜松寒。朱颜不办供岁月,风中蒿火汤中雪。如问君家面黄翁,乞得摩尼照生灭。莫学王郎与支遁,臂鹰走马怜神骏。还君图画君自收,不如木人骑土牛。",
@"img_count":@(arc4random() % 10),
@"comment_count":@[@"坦尾我而想方设法的",
@"奥术大师所大所多多挨打的阿斯达阿斯达多所收到",
@"asparagus片速度快啊啥事大"]},
@{@"user_pic":@"",
@"user_name":[NSString stringWithFormat:@"iOS攻城狮%u",arc4random() % 1000],
@"public_time":[NSString stringWithFormat:@"%u-%u-%u",arc4random() % 1000,arc4random() % 13,arc4random() % 30],
@"content":@"白头萧散满霜风,小阁藤床寄病容。报道先生春睡美,道人轻打五更钟。",
@"img_count":@(arc4random() % 10),
@"comment_count":@[]}];
}
-(NSMutableArray *)dataSource{
if (!_dataSource) {
_dataSource = [NSMutableArray new];
}
return _dataSource;
}
@end
- 全部代码都在这里,粘贴直接看效果。
实现这种效果的方式肯定不止这一种,还有更优秀更完美的方式,欢迎评论一起玩耍。
4、全剧终
2019年11月28日——补充
重点的一段
:关于UILabel换行的显示,在基于auto layout布局里,必须每个可换行的UILabel都要设置preferredMaxLayoutWidth
这个属性,否则会出现凌乱的效果。关于上面文章提到的内容,可能会有朋友没注意到这个属性的设置,在这里重点说明一下。