1.模型

@class?FriendsModel;

@interface?GroupModel :?NSObject

@property?(nonatomic, copy)?NSString?*name;

@property?(nonatomic, copy)?NSString?*online;

@property?(nonatomic, strong)?NSArray?*friends;

@property?(nonatomic, strong) FriendsModel *friendModel;

@property?(nonatomic, assign)?BOOL?isOpen;

- (instancetype)initWithDict:(NSDictionary?*)dict;

+ (instancetype)GroupWithDict:(NSDictionary?*)dict;

@end

#import?"FriendsModel.h"

@implementation?GroupModel

- (instancetype)initWithDict:(NSDictionary?*)dict{

? ??if?(self?= [super?init]) {

? ? ? ? [self?setValuesForKeysWithDictionary:dict];

? ? ? ??NSMutableArray?*muArray = [NSMutableArray?array];

? ? ? ??for?(NSDictionary?*dict?in?self.friends) {

? ? ? ? ? ? FriendsModel *model = [FriendsModel friendWithDict:dict];

? ? ? ? ? ? [muArray addObject:model];

? ? ? ? }

? ? ? ??self.friends?= muArray;

? ? }

? ??return?self;

}

+ (instancetype)GroupWithDict:(NSDictionary?*)dict

{

? ??return?[[self?alloc]?initWithDict:dict];

}

@end

@interface?FriendsModel :?NSObject

@property?(nonatomic,?copy)?NSString?*icon;

@property?(nonatomic,?copy)?NSString?*name;

@property?(nonatomic,?copy)?NSString?*intro;

@property?(nonatomic,?assign)?BOOL?isVip;

- (instancetype)initWithDict:(NSDictionary?*)dict;

+ (instancetype)friendWithDict:(NSDictionary?*)dict;

@end

#import?"FriendsModel.h"

@implementation?FriendsModel

- (instancetype)initWithDict:(NSDictionary?*)dict{

? ??if?(self?= [super?init]) {

? ? ? ? [self?setValuesForKeysWithDictionary:dict];

? ? }

? ??return?self;

}

+ (instancetype)friendWithDict:(NSDictionary?*)dict{

? ??return?[[self?alloc]?initWithDict:dict];

}

@end

2.tableView UITableViewHeaderFooterView
的繼承

@protocol HeaderViewDelegate <NSObject>

@optional

- (void)clickView;

@end

@interface HeaderView : UITableViewHeaderFooterView

@property (nonatomic,assign)id<HeaderViewDelegate> delegate;

@property (nonatomic,strong) GroupModel *groupModel;

+ (instancetype)headerView:(UITableView *)tableView;

@end

#import "HeaderView.h"

#import “GroupModel.h"

@implementation HeaderView{

? ?UIButton *_arrowBtn;

? ?UILabel? *_label;

}

+ (instancetype)headerView:(UITableView *)tableView

{

? ?staticNSString *identifier =@"header";

? ?HeaderView *header = [tableViewdequeueReusableCellWithIdentifier:identifier];

? ?if (!header) {

? ? ? ? header = [[HeaderViewalloc]initWithReuseIdentifier:identifier];

? ? }

? ?return header;

}

- (instancetype)initWithReuseIdentifier:(NSString *)reuseIdentifier

{

? ?if (self = [superinit]) {

? ? ? ? UIButton *button = [UIButtonbuttonWithType:UIButtonTypeCustom];

? ? ? ? [button setBackgroundImage:[UIImageimageNamed:@"header_bg"]forState:UIControlStateNormal];

? ? ? ? [button setBackgroundImage:[UIImageimageNamed:@"header_bg_highlighted"]forState:UIControlStateHighlighted];

? ? ? ? [button setImage:[UIImageimageNamed:@"arrow"]forState:UIControlStateNormal];

? ? ? ? [button setTitleColor:[UIColorblackColor]forState:UIControlStateNormal];

? ? ? ? button.contentEdgeInsets =UIEdgeInsetsMake(0,10,0, 0);

? ? ? ? button.contentHorizontalAlignment =UIControlContentHorizontalAlignmentLeft;

? ? ? ? button.titleEdgeInsets =UIEdgeInsetsMake(0,10,0, 0);

? ? ? ? button.imageView.contentMode =UIViewContentModeCenter;

? ? ? ? [button addTarget:selfaction:@selector(buttonAction)forControlEvents:UIControlEventTouchUpInside];

? ? ? ? //超出范圍的圖片不要剪切

? ? ? ? button.imageView.clipsToBounds =NO;

? ? ? ?_arrowBtn = button;

? ? ? ? [selfaddSubview:_arrowBtn];

? ? ? ? //創建label，顯示當前在線人數

? ? ? ?UILabel *labelRight = [[UILabelalloc]init];

? ? ? ? labelRight.textAlignment =NSTextAlignmentCenter;

? ? ? ?_label = labelRight;

? ? ? ? [selfaddSubview:_label];

? ? }

? ? return self;

}

#pragma mark - buttonAction

- (void)buttonAction

{

? ?self.groupModel.isOpen = !self.groupModel.isOpen;

? ?if ([self.delegaterespondsToSelector:@selector(clickView)]) {

? ? ? ? [self.delegateclickView];

? ? }

}

- (void)didMoveToSuperview

{

? ? //通知相關視圖他們的上級視圖已經變化是當某個子控件載入到父控件上得時候調用

?? ?

? ? _arrowBtn.imageView.transform =self.groupModel.isOpen ?

CGAffineTransformMakeRotation(M_PI_2) :CGAffineTransformMakeRotation(0);

?? ?

}

//布局

- (void)layoutSubviews

{

? ? [superlayoutSubviews];

? ? _arrowBtn.frame =self.bounds;

? ? _label.frame =CGRectMake(self.frame.size.width - 70, 0, 60,self.frame.size.height);

}

//賦值

- (void)setGroupModel:(GroupModel *)groupModel

{

? ? _groupModel = groupModel;

? ? [_arrowBtn setTitle:_groupModel.name forState:UIControlStateNormal];

? ? _label.text = [NSString stringWithFormat:@"%@/%lu",_groupModel.online,(unsignedlong)_groupModel.friends.count];

?? ?

}

3.控制器

#import "ListTableViewController.h"

#import "GroupModel.h"

#import "FriendsModel.h"

#import "HeaderView.h"

#import "ViewController.h"

@interface ListTableViewController ()<HeaderViewDelegate>

@property (nonatomic, strong)NSArray *dataArray;

@end

@implementation ListTableViewController

//懶載入

- (NSArray *)dataArray{

? ?if (!_dataArray) {

? ? ? ? NSString *path = [[NSBundlemainBundle]pathForResource:@"friends.plist"ofType:nil];

? ? ? ?NSArray *array = [NSArrayarrayWithContentsOfFile:path];

? ? ? ? NSMutableArray *muArray = [NSMutableArrayarrayWithCapacity:array.count];

? ? ? ?for (NSDictionary *dictin array) {

? ? ? ? ? ? GroupModel *groupModel = [GroupModel GroupWithDict:dict];

? ? ? ? ? ? [muArray addObject:groupModel];

? ? ? ? }

? ? ? ?_dataArray = [muArraycopy];

? ? }

? ? return_dataArray;

?? ?

?? ?

}

- (void)viewDidLoad

{

? ? [superviewDidLoad];

?? ?

? ? self.tableView.sectionHeaderHeight =40;//自己定義了sectionHeader一定要設置高

? ? [selfclipExtraCellLine:self.tableView];//數據不夠，去掉以下多余的表格線

}

#pragma mark - Table view data source

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView

{

? ? return self.dataArray.count;

}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section

{

? ? GroupModel *groupModel =self.dataArray[section];

? ?NSInteger count = groupModel.isOpen ? groupModel.friends.count :0;

? ?return count;

}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath

{

? ?staticNSString *identifier =@"friendCell";

? ?UITableViewCell *cell = [tableViewdequeueReusableCellWithIdentifier:identifier];

? ?if (!cell) {

? ? ? ? cell = [[UITableViewCellalloc]initWithStyle:UITableViewCellStyleSubtitlereuseIdentifier:identifier];

?? ? ? ?

? ? }

? ? GroupModel *groupModel =self.dataArray[indexPath.section];

? ? FriendsModel *friendModel = groupModel.friends[indexPath.row];

? ? cell.imageView.image = [UIImage imageNamed:friendModel.icon];

? ? cell.textLabel.text = friendModel.name;

? ? cell.detailTextLabel.text = friendModel.intro;

?? ?

? ?return cell;

}

#pragma mark - UITableView delegate

- (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section

{

? ?HeaderView *header = [HeaderViewheaderView:tableView];

? ? header.delegate =self;

? ? header.groupModel =self.dataArray[section];

? ?return header;

}

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath

{

? ? ViewController *viewCtrl = [[ViewControlleralloc]init];

? ? //viewCtrl.view.backgroundColor = [UIColor redColor];

? ? [self.navigationControllerpushViewController:viewCtrlanimated:NO];

}

- (void)clickView

{

? ? [self.tableViewreloadData];

}

#pragma mark - 去掉多余的線

- (void)clipExtraCellLine:(UITableView *)tableView

{

? ?UIView *view = [[UIViewalloc]init];

? ? view.backgroundColor = [UIColorclearColor];

? ? [self.tableViewsetTableFooterView:view];

}

/*

?設置視圖控制顏色

?

?self.window = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds];

?self.window.backgroundColor = [UIColor whiteColor];

?ListTableViewController *listVC = [[ListTableViewController alloc] init];

?UINavigationController *navCtrl = [[UINavigationController alloc] initWithRootViewController:listVC];

?self.window.rootViewController = navCtrl;

?[self.window makeKeyAndVisible];

?*/

素材下載地址:http://download.csdn.net/detail/baitxaps/8934111

轉載于:https://www.cnblogs.com/gccbuaa/p/7391243.html

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