为第二个demo加上UITabBarController
实现一共三大个模块，“首页” ，“发现” 和 “我”，“首页”就是第二个demo，“我” 是一个简单的UItableview
需要注意的一点是 新增加进来的tabbar会遮挡底部页面。因为“首页”是固定高度，所以在设定UItableview高度时要增加高度，而“发现”是自适应高度，则需要在分别初始化scrollview中的四个UItableview时，将UItableview的高度从mainscreenheight变成mainscreenheight-64-49（64是导航栏的高度，49是tabbar的高度）
uitabbarcontroller的代码如下。
- (void)viewDidLoad {
[super viewDidLoad];
self.view.backgroundColor=[UIColor whiteColor];
// self.edgesForExtendedLayout=UIRectEdgeNone;
ViewController *v1=[[ViewController alloc]init];
v1.tabBarItem.title=@"首页";
v1.tabBarItem.image=[UIImage imageNamed:@"1"];
UINavigationController *firstNav=[[UINavigationController alloc]initWithRootViewController:v1];
[self addChildViewController:firstNav];
TwoViewController *v2=[[TwoViewController alloc]init];
v2.tabBarItem.title=@"发现";
v2.tabBarItem.image=[UIImage imageNamed:@"3"];
// UINavigationController *SecondNav=[[UINavigationController alloc]initWithRootViewController:v2];
// [self addChildViewController:SecondNav];
[self addChildViewController:v2];
MyViewController *v3=[[MyViewController alloc]init];
v3.tabBarItem.title=@"我";
v3.tabBarItem.image=[UIImage imageNamed:@"4"];
UINavigationController *ThirdNav=[[UINavigationController alloc]initWithRootViewController:v3];
[self addChildViewController:ThirdNav]; //初次进入程序，title不能显示?？要再点回来才可以
}主要是介绍“发现”页面的实现
“发现”页面命名为TwoViewController，隐藏navigationBar。所以在uitabbarcontroller中创建"发现"页面时没用到UINavigationController, 在TwoViewController.m中需要加上self.navigationController.navigationBar.hidden=YES;语句
这个页面用到横向滑动的UIscrollview ，一共包含四个页面
在页面相应位置初始化四个UIbutton，分别是“视频”、“音乐”、“早午茶”、“猜你喜欢”，代码如下
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self.videoBtn=[[UIButton alloc]initWithFrame:CGRectMake(0, 30, mainscreenwidth/4, 20)];
[self.videoBtn setTitle:@"视频" forState:UIControlStateNormal];
[self.videoBtn setTitleColor:[UIColor orangeColor] forState:UIControlStateNormal]; //默认被选中
[self.videoBtn addTarget:self action:@selector(videoBtnClick) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:self.videoBtn];
self.musicBtn=[[UIButton alloc]initWithFrame:CGRectMake(mainscreenwidth/4, 30, mainscreenwidth/4, 20)];
[self.musicBtn setTitle:@"音乐" forState:UIControlStateNormal];
[self.musicBtn setTitleColor:[UIColor blackColor] forState:UIControlStateNormal]; //默认没被选中
[self.musicBtn addTarget:self action:@selector(musicBtnClick) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:self.musicBtn];
self.dinnerBtn=[[UIButton alloc]initWithFrame:CGRectMake(mainscreenwidth/4*2, 30, mainscreenwidth/4, 20)];
[self.dinnerBtn setTitle:@"早午茶" forState:UIControlStateNormal];
[self.dinnerBtn setTitleColor:[UIColor blackColor] forState:UIControlStateNormal]; //默认没被选中
[self.dinnerBtn addTarget:self action:@selector(dinnerBtnClick) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:self.dinnerBtn];
self.likeBtn=[[UIButton alloc]initWithFrame:CGRectMake(mainscreenwidth/4*3, 30, mainscreenwidth/4, 20)];
[self.likeBtn setTitle:@"猜你喜欢" forState:UIControlStateNormal];
[self.likeBtn setTitleColor:[UIColor blackColor] forState:UIControlStateNormal]; //默认没被选中
[self.likeBtn addTarget:self action:@selector(likeBtnClick) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:self.likeBtn];为每个UIbutton定义触发后事件
-(void)videoBtnClick{
self.slideLab.frame=CGRectMake(20, 52, mainscreenwidth/4-40, 2); //横条滑动
[self.videoBtn setTitleColor:[UIColor orangeColor] forState:UIControlStateNormal];
[self.musicBtn setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
[self.dinnerBtn setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
[self.likeBtn setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:0.3];
[self.scrollView setContentOffset:CGPointMake(mainscreenwidth*0, 0)];
[UIView commitAnimations];
}
-(void)musicBtnClick{
self.slideLab.frame=CGRectMake(20+mainscreenwidth/4, 52, mainscreenwidth/4-40, 2);//横条滑动
[self.videoBtn setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
[self.musicBtn setTitleColor:[UIColor orangeColor] forState:UIControlStateNormal];
[self.dinnerBtn setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
[self.likeBtn setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:0.3];
[self.scrollView setContentOffset:CGPointMake(mainscreenwidth*1, 0)];
[UIView commitAnimations];
}
-(void)dinnerBtnClick{
self.slideLab.frame=CGRectMake(20+2*mainscreenwidth/4, 52, mainscreenwidth/4-40, 2);//横条滑动
[self.videoBtn setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
[self.musicBtn setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
[self.dinnerBtn setTitleColor:[UIColor orangeColor] forState:UIControlStateNormal];
[self.likeBtn setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:0.3];
[self.scrollView setContentOffset:CGPointMake(mainscreenwidth*2, 0)];
[UIView commitAnimations];
}
-(void)likeBtnClick{
self.slideLab.frame=CGRectMake(20+3*mainscreenwidth/4, 52, mainscreenwidth/4-40, 2);//横条滑动
[self.videoBtn setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
[self.musicBtn setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
[self.dinnerBtn setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
[self.likeBtn setTitleColor:[UIColor orangeColor] forState:UIControlStateNormal];
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:0.3];
[self.scrollView setContentOffset:CGPointMake(mainscreenwidth*3, 0)];
[UIView commitAnimations];
}然后初始化UIbutton下面起到显示引导作用的横条
self.slideLab=[[UILabel alloc]init];
self.slideLab.frame=CGRectMake(20, 52, mainscreenwidth/4-40, 2);
self.slideLab.backgroundColor=[UIColor orangeColor];
[self.view addSubview:self.slideLab]; 接下来初始化横向滑动的UIscrollview
self.scrollView=[[UIScrollView alloc]initWithFrame:CGRectMake(0, 55, mainscreenwidth, mainscreenheight)];
self.scrollView.delegate=self;
self.scrollView.contentSize=CGSizeMake(mainscreenwidth*4, mainscreenheight);
self.scrollView.pagingEnabled=YES; //一开始写成了scrollenabled ,然后出现一次会滑动很多页的情况，修改成pagingEnabled之后，变为一次滑动一页
self.scrollView.bounces=NO;
self.scrollView.showsVerticalScrollIndicator=NO;
self.scrollView.showsHorizontalScrollIndicator=NO;
[self.view addSubview:self.scrollView];接下来是滑动scrollview时页面的跳转方法
- (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView{
CGFloat offset=self.scrollView.contentOffset.x;
int page=(offset+mainscreenwidth/2)/mainscreenwidth;
self.pageControl.currentPage=page;
if(self.pageControl.currentPage==0){
[self videoBtnClick];
}else if (self.pageControl.currentPage==1){
[self musicBtnClick];
}else if (self.pageControl.currentPage==2){
[self dinnerBtnClick];
}else{
[self likeBtnClick];
}
}接下来依次往UIscrollview中添加tableview
self.videoTV=[[UITableView alloc]initWithFrame:CGRectMake(0, 2, mainscreenwidth, mainscreenheight-64-49) style:UITableViewStylePlain];
self.videoTV.delegate=self;
self.videoTV.dataSource=self;
[self.scrollView addSubview:self.videoTV];
self.musicTV=[[UITableView alloc]initWithFrame:CGRectMake(mainscreenwidth, 2, mainscreenwidth, mainscreenheight-64-49) style:UITableViewStylePlain];
self.musicTV.delegate=self;
self.musicTV.dataSource=self;
[self.scrollView addSubview:self.musicTV];
self.dinnerTV=[[UITableView alloc]initWithFrame:CGRectMake(mainscreenwidth*2, 2, mainscreenwidth, mainscreenheight-64-49) style:UITableViewStylePlain];
self.dinnerTV.delegate=self;
self.dinnerTV.dataSource=self;
self.dinnerTV.separatorStyle=UITableViewCellSeparatorStyleNone;
[self.scrollView addSubview:self.dinnerTV];
//解决点击按键时屏幕跳动的问题
self.dinnerTV.estimatedRowHeight=0;
self.dinnerTV.estimatedSectionFooterHeight=0;
self.dinnerTV.estimatedSectionHeaderHeight=0;
self.likeTV=[[UITableView alloc]initWithFrame:CGRectMake(mainscreenwidth*3, 2, mainscreenwidth, mainscreenheight-64-49) style:UITableViewStylePlain];
self.likeTV.delegate=self;
self.likeTV.dataSource=self;
[self.scrollView addSubview:self.likeTV];
self.pageControl=[[UIPageControl alloc]initWithFrame:CGRectMake(50, mainscreenheight-30-50, 100, 30)];
self.pageControl.currentPage=0;
self.pageControl.numberOfPages=4;
self.pageControl.hidden=YES;
[self.view addSubview:self.pageControl];
在viewDidLoad方法中调用 setupArray方法，依次为数组赋值
-(void)setupArray{
VideoModel *videoM=[[VideoModel alloc]init];
videoM.photoName=@"123.jpg";
videoM.Name=@"Peter Elson";
videoM.detail=@"Peter Elson (1947 – 1998)，英国科幻小说插画师，他的许多作品对后来的太空游戏创作产生了很大的影响,整整影响了一代科幻插图画家和概念艺术家。";
CommentModel *commentModel1=[[CommentModel alloc]init];
commentModel1.commentA=@"据了解";
commentModel1.commentB=@"博客";
commentModel1.commentDetail=@"胜利路南";
videoM.commentModelArray=[[NSArray alloc]initWithObjects:commentModel1, nil];
VideoModel *videoM2=[[VideoModel alloc]init];
videoM2.photoName=@"124.jpg";
videoM2.Name=@"美丽的黄昏";
videoM2.detail=@"三个月前，不顾朋友、家人、同事反对，毅然决然地做了一件想了三年的事——记录这个时代的建筑者。";
CommentModel *commentModel2=[[CommentModel alloc]init];
commentModel2.commentA=@"姜汁";
commentModel2.commentB=@"普洱";
commentModel2.commentDetail=@"是你每次";
videoM2.commentModelArray=[[NSArray alloc]initWithObjects:commentModel2,commentModel1, nil];
VideoModel *videoM3=[[VideoModel alloc]init];
videoM3.photoName=@"125.jpg";
videoM3.Name=@"MusicWars";
videoM3.detail=@"电影版《唐顿庄园》北美正式定档2019年9月20日！其他部分地区将于9月13日上线！电视剧版的演员Maggie Smith、Hugh Bonneville、Michelle Dockery、Elizabeth McGovern等人将确定回归影版";
CommentModel *commentModel3=[[CommentModel alloc]init];
commentModel3.commentA=@"欧派";
commentModel3.commentB=@"思想";
commentModel3.commentDetail=@"主持稿";
videoM3.commentModelArray=[[NSArray alloc]initWithObjects:commentModel1,commentModel3,commentModel2,nil];
VideoModel *videoM4=[[VideoModel alloc]init];
videoM4.photoName=@"126.jpg";
videoM4.Name=@"艾薇儿Avril";
videoM4.detail=@"艾薇儿Avril回归新单《Head Above Water》歌词版超清MV大首播！这首歌曲是艾薇儿Avril患病期间卧床写的，艾薇儿说：我已经接受了死亡，可以感受到我的身体正在关闭，就像溺水，我正在水里面，很需要赶快上去吸一口气。整首歌都是记录她患病那些日子的感受！";
CommentModel *commentModel4=[[CommentModel alloc]init];
commentModel4.commentA=@"皮特";
commentModel4.commentB=@"如律";
commentModel4.commentDetail=@"大考卷下半年";
videoM4.commentModelArray=[[NSArray alloc]initWithObjects:commentModel1,commentModel3,commentModel4,nil];
VideoModel *videoM5=[[VideoModel alloc]init];
videoM5.photoName=@"127.jpg";
videoM5.Name=@"伪命题";
videoM5.detail=@"随着沪深股市持续下跌，外资抄底A股的声音又出现了。其实，此前股市下跌后如果出现大幅上涨行情，总有某某资金抄底的声音，比如险资、比如外资。";
CommentModel *commentModel5=[[CommentModel alloc]init];
commentModel5.commentA=@"麦炒饼VS炒面";
commentModel5.commentB=@"坐标系";
commentModel5.commentDetail=@"突然好怀念吧";
videoM5.commentModelArray=[[NSArray alloc]initWithObjects:commentModel1,commentModel4,commentModel2,nil];
self.videoArray=[[NSMutableArray alloc]initWithObjects:videoM,videoM2,videoM3,videoM4,videoM5, nil];
MusicModel *musicM=[[MusicModel alloc]init];
musicM.PicName=@"01.jpg";
musicM.userName=@"YUE XUAN";
musicM.titleName=@"好好";
musicM.userPhotoName=@"125.jpg";
musicM.musicName=@"好好";
musicM.detailName=@"《好好（想把你写成一首歌）》是由阿信作词，冠佑、阿信作曲、五月天演唱的歌曲，收录在五月天第9张专辑《自传》中。于2016年10月11日作为新海诚动漫电影《你的名字》的台湾地区宣传曲。";
MusicModel *musicM2=[[MusicModel alloc]init];
musicM2.PicName=@"0.jpeg";
musicM2.userName=@"AwLi";
musicM2.titleName=@"Peter Elson ";
musicM2.userPhotoName=@"126.jpg";
musicM2.musicName=@"像我这样的人";
musicM2.detailName=@"小时候的毛不易觉得自己是个非常与众不同的人，但随着年龄的增长，毛不易发现自己可能并没有那么特别，对于那种泯然众人的感觉让他觉得很难受，他觉得很不甘心 ，却又无能为力。在毛不易面临大学毕业的时，他试图逃离现状，又不知去往何处。2016年，毛不易在杭州地方医院实习时，他开始提笔写歌，他把这样的自己写进了歌曲《像我这样的人》中。";
MusicModel *musicM3=[[MusicModel alloc]init];
musicM3.PicName=@"02";
musicM3.userName=@"MOWEN";
musicM3.titleName=@"好久不见";
musicM3.userPhotoName=@"127.jpg";
musicM3.musicName=@"好久不见";
musicM3.detailName=@"《好久不见》是翻唱陈奕迅的粤语专辑《What's Going On...?》中的歌曲《不如不见》，《不如不见》由创作了《十年》的陈小霞作曲，请到作词人施立填上国语歌词，来描述期望和旧情人重逢，可以淡淡说声好久不见的意境，词填得不温不火，似只是在喃喃述说一个再也平常不过的爱情故事，适合陈奕迅淡定落寞却又充满沧桑沙哑的声音，谱写出一首凄美的情歌";
MusicModel *musicM4=[[MusicModel alloc]init];
musicM4.PicName=@"03.jpeg";
musicM4.userName=@"yanY";
musicM4.titleName=@"等你下课 ";
musicM4.userPhotoName=@"128.jpg";
musicM4.musicName=@"等你下课";
musicM4.detailName=@"2017年忙碌于巡回演唱会的周杰伦，心里一直惦记着不想让歌迷等新歌等太久。周杰伦趁着演唱会的庆功宴空档写歌，当工作人员在庆功宴上放松时，他灵感来了就回到自己的房间里，拿起吉他轻刷旋律写下这首《等你下课》，词曲皆出自周杰伦之手，一气呵成。";
MusicModel *musicM5=[[MusicModel alloc]init];
musicM5.PicName=@"04.jpg";
musicM5.userName=@"往事随风";
musicM5.titleName=@"告白气球";
musicM5.userPhotoName=@"124.jpg";
musicM5.musicName=@"告白气球";
musicM5.detailName=@"词作者方文山为周杰伦创作了《印地安老斑鸠》之后，在《周杰伦的睡前故事》这张专辑里为周杰伦量身打造了一首甜美浪漫曲风的歌曲——《告白气球》。该歌曲灵感来源于法国的美景，觉得应该来一首《简单爱》类似的歌曲创作，回顾一下以前那种对于初恋、小清新的感觉。在创作过程中周杰伦一直保持着童心未泯的心态与方文山一起合作，自己坦言这首歌是专辑里面，写得最简单的，最好写的。";
self.musicArray=[[NSMutableArray alloc]initWithObjects:musicM,musicM2,musicM3,musicM4,musicM5, nil];
self.musicNameArray=[[NSMutableArray alloc]initWithObjects:@"好好",@"像我这样的人",@"好久不见",@"等你下课",@"告白气球", nil];
DinnerModel *dinnerM=[[DinnerModel alloc]init];
dinnerM.userIconName=@"棒棒糖";
dinnerM.userName=@"棒棒糖";
dinnerM.detail=@"1758年，闻名世界的棒棒糖（lollipop）的发明人恩里克·伯纳特·丰利亚多萨，首次推出这种带棍的糖果，结果使一家几乎经营不下去的糖果公司扭亏为盈。";
dinnerM.PhotoNameArray=@[@"12344.jpg",@"123445.jpg"];
DinnerModel *dinnerM2=[[DinnerModel alloc]init];
dinnerM2.userIconName=@"冰淇凌";
dinnerM2.userName=@"冰淇淋";
dinnerM2.detail=@"将近800年以前，冰淇淋源于中国。在元朝的时候，一位精明的食品店商人突发奇想，他尝试着在冰中添加一些蜜糖、牛奶和珍珠粉，结果，制成了世界上最早的冰淇淋。";
dinnerM2.PhotoNameArray=@[];
// dinnerM2.PhotoNameArray=[[NSArray alloc]initWithObjects:@"12355.jpg",@"123556.jpg",@"123557.jpg",@"123558.jpg",nil];
DinnerModel *dinnerM3=[[DinnerModel alloc]init];
dinnerM3.userIconName=@"沙拉";
dinnerM3.userName=@"沙拉";
dinnerM3.detail=@"主要有三类，水果沙拉、蔬菜沙拉、其他沙拉。由绿色有叶生菜制成的一道菜，常加有萝卜、黄瓜或西红柿，并加调味品食用。";
dinnerM3.PhotoNameArray=@[@"123559.jpg",@"1235510.jpg"];
DinnerModel *dinnerM4=[[DinnerModel alloc]init];
dinnerM4.userIconName=@"薯条可乐";
dinnerM4.userName=@"薯条可乐";
dinnerM4.detail=@"薯条的英文是“Chips”，美国人称之为“French Fries”.";
dinnerM4.PhotoNameArray=@[@"1235511.jpg",@"1235512.jpg",@"1235513",@"1235514.jpg"];
DinnerModel *dinnerM5=[[DinnerModel alloc]init];
dinnerM5.userIconName=@"甜甜圈";
dinnerM5.userName=@"甜甜圈";
dinnerM5.detail=@"现在的甜甜圈在美国还是最为受欢迎的一种甜品，任何一个糕点店铺或快餐店都有出售。从5岁儿童到75岁老人都对它有着一致的热爱。";
dinnerM5.PhotoNameArray=@[@"1235515.jpg"];
self.dinnerArray=[[NSMutableArray alloc]initWithObjects:dinnerM,dinnerM2,dinnerM3,dinnerM4,dinnerM5, nil];
}依次完成四个子页面的布局。
首先自定义“视频”子页面的videotableViewcell 。
定义一个videoModel
#import <Foundation/Foundation.h>
@interface VideoModel : NSObject
@property (nonatomic,strong) NSString *photoName;
@property (nonatomic,strong) NSString *Name;
@property (nonatomic,strong) NSString *detail;
@property (nonatomic,strong) NSArray *commentModelArray; //评论数组
@end 页面中，四个按键从左到右依次是转发，收藏，点赞和评论，点击后可以实现相应功能，四个按键添加在另外定义的一个view中，命名为operationmenu 。 评论区域也另外定义一个view，命名为commentview
先完成operationmenu 的布局 ， OperationMenu.h文件定义如下
#import <UIKit/UIKit.h>
#import <Social/Social.h>
#import "VideoModel.h"
@protocol OperationMenuClick <NSObject> //声明协议
-(void) didClickShare;
@end
@interface OperationMenu : UIView
@property (nonatomic,strong) UIButton *shareBtn;
@property (nonatomic,strong) UIButton *collectionBtn;
@property (nonatomic,strong) UIButton *likeBtn;
@property (nonatomic,strong) UILabel *likeNumLabel;
@property (nonatomic,strong) UIButton *commentBtn;
@property (nonatomic,strong) UILabel *commentNumLabel;
@property (nonatomic,weak) id <OperationMenuClick> delegate;
@property (nonatomic,copy) void (^commentClick)(void); //block
@end因为点击具体cell的转发按键shareBtn，转发的是具体cell的内容，所以声明了一个OperationMenuClick协议，在shareBtn的按键点击处理事件中写上 [self.delegate didClickShare]; cell调用该协议，实现该协议中定义的didClickShare功能。cell中的OperationMenuClick协议相关部分的代码如下
-(void)didClickShare{
//文字加图片分享
NSString *textToShare = self.detailLabel.text;
UIImage *imageToShare=[self getJPEGImagerImg:self.photoImg.image]; //压缩图片
// UIImage *imageToShare = [UIImage imageNamed:@"btn-share-link"];
NSURL *urlToShare = [NSURL URLWithString:@"http://www.baidu.com"];
NSArray *activityItems = @[textToShare, imageToShare, urlToShare];
UIActivityViewController *activityVC = [[UIActivityViewController alloc]initWithActivityItems:activityItems applicationActivities:nil];
// 排除（UIActivityTypeAirDrop）AirDrop 共享、(UIActivityTypePostToFacebook)Facebook
activityVC.excludedActivityTypes = @[UIActivityTypePostToFacebook, UIActivityTypeAirDrop];
[self.delegate didShare:activityVC];
}
#pragma mark - 压缩一张图片 最大宽高1280 类似于微信算法
- (UIImage *)getJPEGImagerImg:(UIImage *)image{
CGFloat oldImg_WID = image.size.width;
CGFloat oldImg_HEI = image.size.height;
//CGFloat aspectRatio = oldImg_WID/oldImg_HEI;//宽高比
if(oldImg_WID > KCompressibilityFactor || oldImg_HEI > KCompressibilityFactor){
//超过设置的最大宽度 先判断那个边最长
if(oldImg_WID > oldImg_HEI){
//宽度大于高度
oldImg_HEI = (KCompressibilityFactor * oldImg_HEI)/oldImg_WID;
oldImg_WID = KCompressibilityFactor;
}else{
oldImg_WID = (KCompressibilityFactor * oldImg_WID)/oldImg_HEI;
oldImg_HEI = KCompressibilityFactor;
}
}
UIImage *newImg = [self imageWithImage:image scaledToSize:CGSizeMake(oldImg_WID, oldImg_HEI)];
NSData *dJpeg = nil;
if (UIImagePNGRepresentation(newImg)==nil) {
dJpeg = UIImageJPEGRepresentation(newImg, 0.5);
}else{
dJpeg = UIImagePNGRepresentation(newImg);
}
return [UIImage imageWithData:dJpeg];
}
因为转发提示框是在TwoViewController中展示，所以在cell中还需要声明一个ShareClick协议，通过该协议定义的方法传递当前转发提示框
@protocol ShareClick <NSObject> //声明协议
-(void) didShare:(UIActivityViewController *)activityVC;
@end
TwoViewController调用该协议,实现该协议中定义的didShare方法，TwoViewController中的ShareClick协议相关部分的代码如下
-(void) didShare:(UIActivityViewController *)activityVC{ //实现协议定义的方法
[self presentViewController:activityVC animated:YES completion:nil];
}因为点击具体cell的评论按键commentBtn，评论的是具体cell的内容，所以
通过 @property (nonatomic,copy) void (^commentClick)(void); //block
声明了一个block块，在commentBtn的按键点击处理事件中写上
-(void)comment{
if(self.commentClick){ //block
self.commentClick();
}
cell中commentClick块相关部分的代码如下
[self.operationMenu setCommentClick:^{
if([weakSelf.delegate respondsToSelector:@selector(didClickComment:)]){
[weakSelf.delegate didClickComment:weakSelf]; //调用协议的方法，传递参数值weakSelf
}
}];因为实际的回复内容是从键盘输入，所以实际的回复内容是在TwoViewController中获取，所以在cell中还需要声明一个ShareClick协议，通过该协议定义的方法传递当前cell
@protocol ShareClick <NSObject> //声明协议
-(void) didClickComment:(VideoTableViewCell *)cell;
@end
TwoViewController调用该协议,实现该协议中定义的didClickComment方法，TwoViewController中的ShareClick协议相关部分的代码如下
-(void)didClickComment:(VideoTableViewCell *)cell{ //实现协议定义的方法
//协议传递cell值，获取cell然后执行下面的操作
[self.textField becomeFirstResponder];
self.currentIndexPath=[self.videoTV indexPathForCell:cell]; //获取当前行
[self adjust];
}OperationMenu.m文件定义如下
#import "OperationMenu.h"
#import "UIView+SDAutoLayout.h"
@implementation OperationMenu
-(instancetype)initWithFrame:(CGRect)frame{
self=[super initWithFrame:frame];
if(self){
[self createUI];
}
return self;
}
-(void)createUI{
self.shareBtn=[UIButton buttonWithType:UIButtonTypeCustom];
[self.shareBtn setImage:[UIImage imageNamed:@"item-btn-share-black"] forState:UIControlStateNormal];
[self.shareBtn addTarget:self action:@selector(share) forControlEvents:UIControlEventTouchUpInside];
[self addSubview:self.shareBtn];
self.collectionBtn=[UIButton buttonWithType:UIButtonTypeCustom];
[self.collectionBtn setImage:[UIImage imageNamed:@"item-btn-like-black"] forState:UIControlStateNormal];
[self.collectionBtn addTarget:self action:@selector(collection:) forControlEvents:UIControlEventTouchUpInside];
[self addSubview:self.collectionBtn];
self.likeBtn=[UIButton buttonWithType:UIButtonTypeCustom];
[self.likeBtn setImage:[UIImage imageNamed:@"item-btn-thumb-black"] forState:UIControlStateNormal];
[self.likeBtn addTarget:self action:@selector(like:) forControlEvents:UIControlEventTouchUpInside];
[self addSubview:self.likeBtn];
self.likeNumLabel=[[UILabel alloc]init];
self.likeNumLabel.text=@"5";
self.likeNumLabel.textColor=[UIColor lightGrayColor];
[self addSubview:self.likeNumLabel];
self.commentBtn=[UIButton buttonWithType:UIButtonTypeCustom];
[self.commentBtn setImage:[UIImage imageNamed:@"item-btn-comment-black"] forState:UIControlStateNormal];
[self.commentBtn addTarget:self action:@selector(comment) forControlEvents:UIControlEventTouchUpInside];
[self addSubview:self.commentBtn];
self.commentNumLabel=[[UILabel alloc]init];
self.commentNumLabel.textColor=[UIColor lightGrayColor];
[self addSubview:self.commentNumLabel];
self.shareBtn.sd_layout
.leftSpaceToView(self, 2)
.topSpaceToView(self, 2)
.widthIs(35)
.bottomEqualToView(self);
self.collectionBtn.sd_layout
.leftSpaceToView(self.shareBtn, 15)
.topSpaceToView(self, 2)
.widthIs(35)
.bottomEqualToView(self);
self.likeBtn.sd_layout
.leftSpaceToView(self.collectionBtn, 15)
.topSpaceToView(self, 2)
.widthIs(35)
.bottomEqualToView(self);
self.likeNumLabel.sd_layout
.leftSpaceToView(self.likeBtn, 0)
.topSpaceToView(self, 2)
.widthIs(15)
.bottomEqualToView(self);
self.commentBtn.sd_layout
.leftSpaceToView(self.likeNumLabel, 10)
.topSpaceToView(self, 2)
.widthIs(35)
.bottomEqualToView(self);
self.commentNumLabel.sd_layout
.leftSpaceToView(self.commentBtn, 0)
.topSpaceToView(self, 2)
.widthIs(20)
.bottomEqualToView(self);
[self setupAutoWidthWithRightView:self.commentNumLabel rightMargin:10];
}
-(void)share{
[self.delegate didClickShare];
}
-(void)collection:(UIButton *)sender{ //收藏状态
sender.selected=!sender.selected; //取反状态
if(sender.selected==YES){
[self.collectionBtn setImage:[UIImage imageNamed:@"icon-bookmark-v32"] forState:UIControlStateNormal];
}else{
[self.collectionBtn setImage:[UIImage imageNamed:@"item-btn-like-black"] forState:UIControlStateNormal];
}
}
-(void)like:(UIButton *)sender{ //点赞状态
sender.selected=!sender.selected; //取反状态
int numb=[self.likeNumLabel.text intValue];
if(sender.selected==YES){ //选中状态
[self.likeBtn setImage:[UIImage imageNamed:@"icon-zan"] forState:UIControlStateNormal];
numb=numb+1;
NSString *num=[NSString stringWithFormat:@"%d",numb];
self.likeNumLabel.text=num;
}else{ //取消状态
[self.likeBtn setImage:[UIImage imageNamed:@"item-btn-thumb-black"] forState:UIControlStateNormal];
numb=numb-1;
NSString *num=[NSString stringWithFormat:@"%d",numb];
self.likeNumLabel.text=num;
}
}
-(void)comment{
if(self.commentClick){ //block
self.commentClick();
}
}然后完成commentview 的布局
因为点击具体一条评论，回复的是具体评论者，所以声明了一个commentProtocol协议，在每一条评论label的点击事件中写上[self.delegate commentClick:commentTo]; 通过该协议定义的方法传递被回复者的名称
cell调用该协议，实现该协议中定义的commentClick方法。cell中的commentProtocol协议相关部分的代码如下
-(void)commentClick:(NSString *)string{
self.isReplying=YES;
[self.delegate didComment:self andString:string];
}因为实际的回复内容是从键盘输入，所以实际的回复内容是在TwoViewController中获取，所以在cell中还需要声明一个ShareClick协议，通过该协议定义的方法传递当前cell以及被回复者的名称
@protocol ShareClick <NSObject> //声明协议
-(void) didComment:(VideoTableViewCell *)cell andString:(NSString*)string;
@end
TwoViewController调用该协议,实现该协议中定义的didcomment方法，TwoViewController中的ShareClick协议相关部分的代码如下
-(void)didComment:(VideoTableViewCell *)cell andString:(NSString*)string{
[self.textField becomeFirstResponder];
self.currentIndexPath=[self.videoTV indexPathForCell:cell]; //获取当前行
self.commentTo=string;
[self adjust];
self.isReplyingComment=cell.isReplying;
}commentview.h 声明如下 在.h文件中暴露一个setcommentview方法，即可实现对commentview赋值
#import <UIKit/UIKit.h>
#import "CommentModel.h"
@protocol commentProtocol<NSObject>
-(void)commentClick:(NSString *)string;
@end
@interface CommentView : UIView
@property(nonatomic,strong)UIImageView *backGroundIV;
@property (nonatomic,strong) NSArray *commentArray; //存放评论model
@property (nonatomic,strong) NSMutableArray *commentItemsArray;
@property (nonatomic,weak) id <commentProtocol> delegate;
-(void)setCommentView:(NSArray *)commentModelArray; //cell中调用此方法，完成对commentview的赋值
@endcommentview.m 声明如下
#import "CommentView.h"
#import "UIView+SDAutoLayout.h"
@implementation CommentView
- (instancetype)initWithFrame:(CGRect)frame{
self=[super initWithFrame:frame];
if(self){
[self createUI];
self.commentItemsArray=[[NSMutableArray alloc]init];
}
return self;
}
-(void)createUI{
self.backGroundIV=[[UIImageView alloc]init];
self.backGroundIV.image=[[[UIImage imageNamed:@"LikeCmtBg"]stretchableImageWithLeftCapWidth:40 topCapHeight:30]imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
self.backGroundIV.backgroundColor=[UIColor clearColor];
[self addSubview:self.backGroundIV];
self.backGroundIV.sd_layout
.spaceToSuperView(UIEdgeInsetsMake(0, 0, 0, 0));
}
- (void)setCommentArray:(NSArray *)commentArray{ //重写set方法
_commentArray=commentArray;
long originalLabelsCount=self.commentItemsArray.count; //初始评论数
long needsToAddCount=commentArray.count > originalLabelsCount? (commentArray.count-originalLabelsCount):0; //新增的评论数量
//添加label
for(int i=0;i<needsToAddCount;i++){
UILabel *label=[[UILabel alloc]init];
[self addSubview:label];
[self.commentItemsArray addObject:label];
}
//为label赋值
for(int i=0;i<commentArray.count;i++){
CommentModel *commentModel=commentArray[i]; //取出model
UILabel *label=self.commentItemsArray[i];
if(commentModel.attributedContent==nil)
label.attributedText=[self generateAttributedStringWithCommentItemModel:commentModel]; //根据评论model为label赋值
}
}
- (NSMutableAttributedString *)generateAttributedStringWithCommentItemModel:(CommentModel *)commentModel{
NSString *tex=commentModel.commentA;
if(commentModel.commentB.length){
tex=[tex stringByAppendingString:[NSString stringWithFormat:@"回复%@",commentModel.commentB]]; // A 回复 B
}
tex=[tex stringByAppendingString:[NSString stringWithFormat: @": %@",commentModel.commentDetail]]; // A 回复 B ：----
NSMutableAttributedString *str=[[NSMutableAttributedString alloc]initWithString:tex];
[str addAttribute:NSForegroundColorAttributeName value:[UIColor orangeColor] range:[tex rangeOfString:commentModel.commentA]];
if(commentModel.commentB){
[str addAttribute:NSForegroundColorAttributeName value:[UIColor orangeColor] range:[tex rangeOfString:commentModel.commentB]];
} //修改部分字体颜色
return str;
}
-(void)setCommentView:(NSArray *)commentModelArray{
self.commentArray=commentModelArray; //self.commentArray= 调用- (void)setCommentArray:(NSArray *)commentArray方法实现赋值
if(self.commentItemsArray.count){
[self.commentItemsArray enumerateObjectsUsingBlock:^(UILabel *label, NSUInteger idx, BOOL * stop) {
[label sd_clearAutoLayoutSettings]; //重用时先隐藏所有的评论label
label.hidden=YES;
}];
}
if(self.commentArray.count==0){
self.fixedWidth=@(0); //固定宽度
self.fixedHeight=@(0); //固定高度
return;
}else{
self.fixedHeight=nil; //取消固定高度
self.fixedWidth=nil; //取消固定宽度
}
UIView *lastTopView=nil;
for(int i=0;i<self.commentArray.count;i++){
UILabel *label=(UILabel *)self.commentItemsArray[i]; //取出前面已经赋值过的label
label.hidden=NO;
label.sd_layout
.leftEqualToView(self)
.rightSpaceToView(self, 2)
.topSpaceToView(lastTopView, 1) // 每个label相对于上一个label设置距离
.autoHeightRatio(0);
label.isAttributedContent=YES;
lastTopView=label;
//为每一个评论label加上手势识别
UITapGestureRecognizer *tap=[[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(addComment:)];
label.userInteractionEnabled=YES;
[label addGestureRecognizer:tap];
label.tag=i;
}
[self setupAutoHeightWithBottomView:lastTopView bottomMargin:6];
}
-(void)addComment:(UITapGestureRecognizer *)sender{
CommentModel *model=self.commentArray[sender.view.tag]; //获取点击的当前label所在model
NSString *commentTo=model.commentA;
[self.delegate commentClick:commentTo]; //delegate传递model的commentA参数
}
CommentView和OperationMenu的界面布局基本完成，然后进行VideoTableViewCell的布局
VideoTableViewCell布局部分代码如下
self.photoImg=[[UIImageView alloc]init];
[self.contentView addSubview:self.photoImg];
self.nameLabel=[[UILabel alloc]init];
self.nameLabel.font=[UIFont systemFontOfSize:24];
[self.contentView addSubview:self.nameLabel];
self.detailLabel=[[UILabel alloc]init];
self.detailLabel.textColor=[UIColor lightGrayColor];
[self.contentView addSubview:self.detailLabel];
__weak typeof (self)weakSelf=self;
self.operationMenu=[[OperationMenu alloc]init];
[self.contentView addSubview:self.operationMenu];
self.operationMenu.delegate=self;
[self.operationMenu setCommentClick:^{
if([weakSelf.delegate respondsToSelector:@selector(didClickComment:)]){
[weakSelf.delegate didClickComment:weakSelf]; //调用协议的方法，传递参数值weakSelf
}
}];
self.commentView=[[CommentView alloc]init];
[self.contentView addSubview:self.commentView];
self.commentView.delegate=self;
self.photoImg.sd_layout
.rightSpaceToView(self.contentView, 10)
.leftSpaceToView(self.contentView, 10)
.topSpaceToView(self.contentView, 15)
.heightIs(160);
self.nameLabel.sd_layout
.widthIs(150)
.leftEqualToView(self.photoImg)
.topSpaceToView(self.photoImg, 15)
.heightIs(20);
self.detailLabel.sd_layout
.widthRatioToView(self.photoImg, 1)
.leftEqualToView(self.photoImg)
.topSpaceToView(self.nameLabel, 20)
.autoHeightRatio(0);
self.operationMenu.sd_layout
.leftEqualToView(self.photoImg)
.topSpaceToView(self.detailLabel, 10)
.heightIs(45);
self.commentView.sd_layout
.leftSpaceToView(self.contentView, 15)
.rightSpaceToView(self.contentView, 15)
.topSpaceToView(self.operationMenu, 0);
[self setupAutoHeightWithBottomView:self.commentView bottomMargin:20];
在.h文件中暴露一个setModel方法，TwoViewController中调用该方法，即可实现对cell赋值
-(void)setModel:(VideoModel *) videoModel{
self.photoImg.image=[UIImage imageNamed:videoModel.photoName];
self.nameLabel.text=videoModel.Name;
self.detailLabel.text=videoModel.detail;
self.operationMenu.commentNumLabel.text=[NSString stringWithFormat:@"%lu", (unsigned long)videoModel.commentModelArray.count]; //评论数由commentModelArray的数目决定
[self.commentView setCommentView:videoModel.commentModelArray];
}TwoViewController中与文本输入textfield有关代码如下
- (void)viewDidLoad {
[self setupTextField];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardNotification:) name:UIKeyboardWillChangeFrameNotification object:nil];
}
-(void)setupTextField{
self.textField=[[UITextField alloc]init];
self.textField.returnKeyType=UIReturnKeyDone;
self.textField.delegate=self;
self.textField.backgroundColor=[UIColor whiteColor];
self.textField.frame=CGRectMake(0, [UIScreen mainScreen].bounds.size.height, self.view.width_sd, textFieldH);
[[UIApplication sharedApplication].keyWindow addSubview:self.textField];
[self.textField becomeFirstResponder];
[self.textField resignFirstResponder];
}
-(void)viewWillDisappear:(BOOL)animated{
[self.textField resignFirstResponder];
}
-(void)dealloc{
[self.textField removeFromSuperview];
[[NSNotificationCenter defaultCenter] removeObserver:self];
}
-(void)scrollViewWillBeginDragging:(UIScrollView *)scrollView{ //开始滑动页面时，收回键盘
[self.textField resignFirstResponder];
}
-(BOOL)textFieldShouldReturn:(UITextField *)textField{
if(textField.text.length){
[textField resignFirstResponder];
VideoModel *model=self.videoArray[self.currentIndexPath.row]; //取出当前model
NSMutableArray *temp=[[NSMutableArray alloc]init];
[temp addObjectsFromArray:model.commentModelArray]; //添加当前model的所有评论数组
CommentModel *commentModel=[[CommentModel alloc]init];
commentModel.commentA=@"K";
if(self.isReplyingComment){ //回复他人评论
commentModel.commentDetail=textField.text;
commentModel.commentB=self.commentTo;
self.isReplyingComment=NO;
}else{
commentModel.commentDetail=textField.text;
}
[temp addObject:commentModel]; //添加新的评论数组
model.commentModelArray=[temp copy]; //更新得到新的commentModelArray
[self.videoTV reloadRowsAtIndexPaths:@[self.currentIndexPath] withRowAnimation:UITableViewRowAnimationNone]; //刷新当前行
self.textField.text=@"";
return YES;
}
return NO;
}
-(void)keyboardNotification:(NSNotification *)notification{
NSDictionary *dic=notification.userInfo;
CGRect rect=[dic[@"UIKeyboardFrameEndUserInfoKey"]CGRectValue];
CGRect textFieldRect =CGRectMake(0, rect.origin.y-textFieldH, rect.size.width, textFieldH);
if(rect.origin.y==[UIScreen mainScreen].bounds.size.height){
textFieldRect=rect;
}
[UIView animateWithDuration:0.25 animations:^{
self.textField.frame=textFieldRect;
}];
CGFloat h=rect.size.height+textFieldH;
if(self.keyboardHeight!=h){
self.keyboardHeight=h;
[self adjust];
}
}
-(void)adjust{
UIWindow *win=[UIApplication sharedApplication].keyWindow;
UITableViewCell *cell=[self.videoTV cellForRowAtIndexPath:self.currentIndexPath];
CGRect rect=[cell.superview convertRect:cell.frame toView:win];
CGFloat de=CGRectGetMaxY(rect)-(win.bounds.size.height-self.keyboardHeight);
CGPoint offset=self.videoTV.contentOffset;
offset.y+=de;
if(offset.y<0){
offset.y=0;}
[self.videoTV setContentOffset:offset animated:YES];
}至此，“视频”界面基本完成
接下来进行“音乐”界面的布局 ，首先自定义“音乐”子页面的musictableViewcell 。
定义一个musicModel
#import <Foundation/Foundation.h>
@interface MusicModel : NSObject
@property (nonatomic,strong) NSString *PicName;
@property (nonatomic,strong) NSString *userName;
@property (nonatomic,strong) NSString *userPhotoName;
@property (nonatomic,strong) NSString *musicName;
@property (nonatomic,strong) NSString *titleName;
@property (nonatomic,strong) NSString *detailName;
@end接下来是MusicTableViewCell的布局代码。因为要实现音乐播放的功能 ， 所以用到了AVAudioPlayer ，需要导入#import <AVFoundation/AVFoundation.h>框架 ，代码如下
#import "MusicTableViewCell.h"
#import "UIView+SDAutoLayout.h"
#import <AVFoundation/AVFoundation.h>
@interface MusicTableViewCell () <AVAudioPlayerDelegate>
@property (nonatomic,strong) AVAudioPlayer *player; //播放器
@property (nonatomic,strong) UIButton *button;
@property (nonatomic,strong) UIProgressView *progress; //播放进度条
@property (nonatomic,strong) UISlider *slider; //用滑动器来控制音量大小
@property (nonatomic,strong) NSTimer *timer; //更新歌曲当前时间
@property (nonatomic,strong) UILabel *timeLabel; //显示时间
@end
@implementation MusicTableViewCell
- (void)awakeFromNib {
[super awakeFromNib];
// Initialization code
}
-(instancetype)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier{
self=[super initWithStyle:style reuseIdentifier:reuseIdentifier];
if(self){
self.selectionStyle=UITableViewCellSelectionStyleNone;
self.player.delegate=self;
[self creatUI];
}
return self;
}
-(void)creatUI{
self.picView=[[UIImageView alloc]init];
[self.contentView addSubview:self.picView];
self.userNameLabel=[[UILabel alloc]init];
self.userNameLabel.textAlignment=NSTextAlignmentLeft;
self.userNameLabel.font=[UIFont systemFontOfSize:19];
[self.contentView addSubview:self.userNameLabel];
self.userPhtoView=[[UIImageView alloc]init];
[self.contentView insertSubview:self.userPhtoView atIndex:0];
self.button=[UIButton buttonWithType:UIButtonTypeCustom]; //改为UIButtonTypeCustom ，按键不会默认蓝色
[self.button setImage:[UIImage imageNamed:@"开始-6"] forState:UIControlStateNormal];
[self.button addTarget:self action:@selector(play:) forControlEvents:UIControlEventTouchUpInside];
[self.contentView addSubview:self.button];
self.progress=[[UIProgressView alloc]init]; //实例化进度条
self.progress.progress=0;
[self.contentView addSubview:self.progress];
self.timeLabel=[[UILabel alloc]init];
self.timeLabel.textColor=[UIColor lightGrayColor];
[self.contentView addSubview:self.timeLabel];
self.slider=[[UISlider alloc]init];
self.slider.minimumValue=0;
self.slider.maximumValue=10;
[self.slider setThumbImage:[UIImage imageNamed: @"圆盘-2"] forState:UIControlStateNormal];
self.slider.transform=CGAffineTransformMakeRotation(-M_PI_2);
[self.slider addTarget:self action:@selector(changeVo) forControlEvents:UIControlEventTouchUpInside];
[self.contentView addSubview:self.slider];
self.titleLabel=[[UILabel alloc]init];
self.titleLabel.font=[UIFont systemFontOfSize:23];
[self.contentView addSubview:self.titleLabel];
self.detailLabel=[[UILabel alloc]init];
self.detailLabel.textColor=[UIColor lightGrayColor];
[self.contentView addSubview:self.detailLabel];
self.picView.sd_layout
.leftSpaceToView(self.contentView, 10)
.topSpaceToView(self.contentView, 10)
.widthIs(40)
.heightIs(40);
self.userNameLabel.sd_layout
.leftSpaceToView(self.picView, 10)
.centerYEqualToView(self.picView)
.widthIs(150)
.heightIs(30);
self.userPhtoView.sd_layout
.leftEqualToView(self.picView)
.topSpaceToView(self.picView, 15)
.rightSpaceToView(self.contentView, 10)
.heightIs(160);
self.button.sd_layout
.centerYEqualToView(self.userPhtoView)
.centerXEqualToView(self.userPhtoView)
.widthIs(80)
.heightIs(80);
self.progress.sd_layout
.topSpaceToView(self.button, 20)
.leftSpaceToView(self.contentView, 20)
.rightSpaceToView(self.contentView, 50)
.heightIs(15);
self.timeLabel.sd_layout
.widthIs(200)
.leftEqualToView(self.progress)
.topSpaceToView(self.button, 3)
.heightIs(15);
self.slider.sd_layout
.bottomEqualToView(self.progress)
.widthIs(10)
.rightSpaceToView(self.contentView, 18)
.heightIs(100);
self.titleLabel.sd_layout
.leftEqualToView(self.userPhtoView)
.rightEqualToView(self.userPhtoView)
.topSpaceToView(self.userPhtoView, 15)
.autoHeightRatio(0);
self.detailLabel.sd_layout
.leftEqualToView(self.titleLabel)
.rightEqualToView(self.titleLabel)
.topSpaceToView(self.titleLabel, 15)
.autoHeightRatio(0);
[self setupAutoHeightWithBottomView:self.detailLabel bottomMargin:20];
}
-(void)time{
NSTimeInterval totalTime=self.player.duration;
NSTimeInterval currentTime=self.player.currentTime;
self.progress.progress=(currentTime/totalTime);
NSTimeInterval currentM=currentTime/60;
currentTime=(int)currentTime%60;
NSTimeInterval totalM=totalTime/60;
totalTime=(int)totalTime%60;
NSString *timeString=[NSString stringWithFormat:@"%02.0f:%02.0f|%02.0f:%02.0f",currentM,currentTime,totalM,totalTime];
self.timeLabel.text=timeString;
}
-(void)changeVo{
self.player.volume=self.slider.value;
}
-(void)play:(UIButton *)sender{
self.isPlay=!self.isPlay;
if(self.isPlay==NO){
[self.button setImage:[UIImage imageNamed:@"开始-6"] forState:UIControlStateNormal];
[self.player pause];
self.userPhtoView.alpha=1;
}else{
[self.button setImage:[UIImage imageNamed:@"暂停-6"] forState:UIControlStateNormal];
[self.player play];
self.userPhtoView.alpha=0.6; //本来是使背景图变模糊，结果没成功，现在是修改透明度
}
// [self.delegate didClickPlay:self]; //协议方法，传递值是当前cell，即self
}
-(void)setModel:(MusicModel *) musicModel{
NSURL *musicUrl=[NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:musicModel.musicName ofType:@"mp3"]];
self.player=[[AVAudioPlayer alloc]initWithContentsOfURL:musicUrl error:nil];
self.timer=[NSTimer scheduledTimerWithTimeInterval:1 target:self selector:@selector(time) userInfo:nil repeats:YES];
self.titleLabel.text=musicModel.titleName;
self.detailLabel.text=musicModel.detailName;
self.picView.image=[UIImage imageNamed:musicModel.PicName];
self.userNameLabel.text=musicModel.userName;
self.userPhtoView.image=[UIImage imageNamed:musicModel.userPhotoName];
}
- (void)setSelected:(BOOL)selected animated:(BOOL)animated {
[super setSelected:selected animated:animated];
}但是该部分代码还存在一些问题，比如 存在多个cell的播放器可以同时播放音乐的情况 ，还比如播放结束后，播放按键不会自动切换为“开始”图标，仍然是“暂停”图标。
接下来进行“早午茶”界面的布局 ，定义一个dinnerModel
.h文件定义如下
#import <Foundation/Foundation.h>
@interface DinnerModel : NSObject
@property (nonatomic,strong) NSString *userName;
@property (nonatomic,strong) NSString *userIconName;
@property (nonatomic,strong) NSString *detail;
@property (nonatomic,strong) NSArray *PhotoNameArray;
@property BOOL shouldForMore;
@property BOOL isOpen;
@end因为定义内容的显示最多不超过三行，所以声明了一个shouldForMore 布尔型变量，引入外部变量maxHeight （在DinnerTableViewCell中已经为外部变量maxHeight赋值为三行文本的高度），如果文本高度超过maxHeight，shouldForMore为YES，反之，则为NO 。.m文件定义如下
#import "DinnerModel.h"
#import <UIKit/UIKit.h>
extern CGFloat maxHeight;
@implementation DinnerModel{
CGFloat _lastContentWidth;
}
@synthesize detail=_detail;
-(void)setDetail:(NSString *)detail{
_detail=detail;
}
-(NSString *)detail{
CGFloat contentw=[UIScreen mainScreen].bounds.size.width-70;
if(contentw !=_lastContentWidth){
_lastContentWidth=contentw;
CGRect textRect=[_detail boundingRectWithSize:CGSizeMake(contentw, MAXFLOAT) options:NSStringDrawingUsesLineFragmentOrigin |NSStringDrawingUsesFontLeading attributes:@{NSFontAttributeName:[UIFont systemFontOfSize:18]} context:nil];
if(textRect.size.height>maxHeight) {
_shouldForMore=YES; //超过三行，需要“查看更多”
}
else{
_shouldForMore=NO; //不需要“查看更多”
}
}
return _detail;
}
@end接下来是DinnerTableViewCell的布局代码。DinnerTableViewCell.h代码如下
#import <UIKit/UIKit.h>
#import "DinnerModel.h"
#import "PhotoContainer.h"
@class DinnerTableViewCell;
@protocol forMoreProtocol <NSObject>
-(void)didClickForMore:(DinnerTableViewCell *)cell;
@end
@interface DinnerTableViewCell : UITableViewCell
@property (nonatomic,strong) UIImageView *userImg;
@property (nonatomic,strong) UILabel *userLabel;
@property (nonatomic,strong) UILabel *detailLabel;
@property (nonatomic,strong) UILabel *formore;
@property BOOL isOpen;
@property (nonatomic,strong) PhotoContainer *phtoContainer;
@property (nonatomic,weak)id <forMoreProtocol>delegate;
-(void)setModel:(DinnerModel *)dinnerModel ;
@end因为点击具体cell中的“查看更多”，会实现展开特定的cell中的内容。.h文件中声明了一个forMoreProtocol协议，通过该协议传递当前cell，TwoViewController中调用该协议，实现该协议定义的方法，TwoViewController中的相关代码如下
-(void)didClickForMore:(DinnerTableViewCell *)cell{
NSIndexPath *indexPath=[self.dinnerTV indexPathForCell:cell];
DinnerModel *model=_dinnerArray[indexPath.row];
model.isOpen=!model.isOpen;
// [self.dinnerTV reloadData];
[self.dinnerTV reloadRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationNone]; //更新当前行
}DinnerTableViewCell.m代码如下
#import "DinnerTableViewCell.h"
#import "UIView+SDAutoLayout.h"
CGFloat maxHeight=0;
@implementation DinnerTableViewCell
- (void)awakeFromNib {
[super awakeFromNib];
// Initialization code
}
-(instancetype)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier{
self=[super initWithStyle:style reuseIdentifier:reuseIdentifier];
if(self){
[self create];
self.selectionStyle=UITableViewCellSelectionStyleNone;
}
return self;
}
-(void)create{
self.userImg =[[UIImageView alloc]init];
[self.contentView addSubview:self.userImg];
self.userLabel=[[UILabel alloc]init];
self.userLabel.font=[UIFont systemFontOfSize:23];
[self.contentView addSubview:self.userLabel];
self.detailLabel=[[UILabel alloc]init];
self.detailLabel.font=[UIFont systemFontOfSize:18];
if(maxHeight==0){
maxHeight=self.detailLabel.font.lineHeight*3;
} //一开始把这句话放在第一行，结果行数没到三行也显示了“查看更多”，因为没赋值成功正确的行高
[self.contentView addSubview:self.detailLabel];
self.formore=[[UILabel alloc]init];
self.formore.text=@"查看更多";
self.formore.textColor=[UIColor grayColor];
self.formore.font=[UIFont systemFontOfSize:14];
[self.contentView addSubview:self.formore];
UITapGestureRecognizer *tap=[[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(More:)];
self.formore.userInteractionEnabled=YES;
[self.formore addGestureRecognizer:tap];
self.phtoContainer=[[PhotoContainer alloc]init];
[self.contentView addSubview:self.phtoContainer];
self.userImg.sd_layout
.leftSpaceToView(self.contentView, 20)
.topSpaceToView(self.contentView, 10)
.widthIs(50)
.heightIs(50);
self.userLabel.sd_layout
.leftSpaceToView(self.userImg, 15)
.topSpaceToView(self.contentView, 10)
.widthIs(150)
.heightIs(25);
self.detailLabel.sd_layout
.topSpaceToView(self.userLabel, 10)
.leftEqualToView(self.userLabel)
.rightSpaceToView(self.contentView, 5)
.autoHeightRatio(0); //还是要写上这句高度自适应
self.formore.sd_layout
.topSpaceToView(self.detailLabel, 5)
.leftEqualToView(self.userLabel)
.widthIs(100);
self.phtoContainer.sd_layout
.topSpaceToView(self.formore, 5)
.leftEqualToView(self.userLabel);
}
-(void)More:(UITapGestureRecognizer *)recognizer{
[self.delegate didClickForMore:self];
}
-(void)setModel:(DinnerModel *)dinnerModel {
self.userImg.image=[UIImage imageNamed:dinnerModel.userIconName];
self.userLabel.text=dinnerModel.userName;
self.detailLabel.text=dinnerModel.detail;
self.phtoContainer.statePhotoArray=dinnerModel.PhotoNameArray;
UIView *bottomV;
if(dinnerModel.shouldForMore){
self.formore.sd_layout
.heightIs(25);
self.formore.hidden=NO;
if(dinnerModel.isOpen){
self.detailLabel.sd_layout
.maxHeightIs(MAXFLOAT);
self.formore.text=@"收起";
}else{
self.detailLabel.sd_layout
.maxHeightIs(maxHeight);
self.formore.text=@"查看更多";
}
if(dinnerModel.PhotoNameArray.count){
bottomV=self.phtoContainer;
}else{
bottomV=self.formore;
}
}else{
self.formore.sd_layout
.heightIs(0);
self.detailLabel.sd_layout
.autoHeightRatio(0);
self.formore.hidden=YES;
if(dinnerModel.PhotoNameArray.count==0){
bottomV=self.detailLabel;
}else{
bottomV=self.phtoContainer;
}
}
[self setupAutoHeightWithBottomView:bottomV bottomMargin:20]; //因为忘记这句，所以布局又乱了
}
- (void)setSelected:(BOOL)selected animated:(BOOL)animated {
[super setSelected:selected animated:animated];
// Configure the view for the selected state
}
@end至此，“早午茶”界面的布局基本完成
在TwoViewController.m中根据当前tableView ，依次调用不同的cell进行赋值 ，相关代码如下
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
if(tableView==self.videoTV)
return _videoArray.count;
else if(tableView==self.musicTV)
return _musicArray.count;
else if(tableView==self.dinnerTV)
return _dinnerArray.count;
else{
return 1;
}
}
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
static NSString *iden=@"iden";
if(tableView==self.videoTV){
VideoTableViewCell *cell=[tableView dequeueReusableCellWithIdentifier:iden];
if(cell==nil){
cell=[[VideoTableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:iden];
}
cell.delegate=self;
[cell setModel:_videoArray[indexPath.row]];
return cell;
}
else if(tableView==self.musicTV){
MusicTableViewCell *cell=[tableView dequeueReusableCellWithIdentifier:iden];
if(cell==nil){
cell=[[MusicTableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:iden];
}
// cell.delegate=self;
[cell setModel:_musicArray[indexPath.row]];
return cell;
}
else if(tableView==self.dinnerTV){
DinnerTableViewCell *cell=[tableView dequeueReusableCellWithIdentifier:iden];
if(cell==nil){
cell=[[DinnerTableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:iden];
}
cell.delegate=self;
[cell setModel:_dinnerArray[indexPath.row]];
return cell;
}
else{
UITableViewCell *cell=[tableView dequeueReusableCellWithIdentifier:iden];
if(cell==nil){
cell=[[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:iden];
}
cell.textLabel.text=@"14";
return cell;
}
}
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath{
//cell高度自适应
if(tableView==_videoTV){
return [self.videoTV cellHeightForIndexPath:indexPath model:self.videoArray[indexPath.row] keyPath:@"model" cellClass:[VideoTableViewCell class] contentViewWidth:[self cellContentViewWith]];
}else if(tableView==_musicTV){
return [self.musicTV cellHeightForIndexPath:indexPath model:self.musicArray[indexPath.row] keyPath:@"model" cellClass:[MusicTableViewCell class] contentViewWidth:[self cellContentViewWith]];
}else if(tableView==_dinnerTV){
return [self.dinnerTV cellHeightForIndexPath:indexPath model:self.dinnerArray[indexPath.row] keyPath:@"model" cellClass:[DinnerTableViewCell class] contentViewWidth:[self cellContentViewWith]];
}else{
return 40;
}
}
- (CGFloat)cellContentViewWith{
CGFloat width = [UIScreen mainScreen].bounds.size.width;
// 适配ios7横屏
if ([UIApplication sharedApplication].statusBarOrientation != UIInterfaceOrientationPortrait && [[UIDevice currentDevice].systemVersion floatValue] < 8) {
width = [UIScreen mainScreen].bounds.size.height;
}
return width;
}