LeftMenu

包含文件

• LeftMenuViewController.h, LeftMenuViewController.m
• TMItemView.h, TMItemView.m
• ThemeItemModel.h, ThemeItemModel.m

实现功能

1、利用xib实现大体UI框架

2、在viewDidLoad调用getThemeList

• 向http://news-at.zhihu.com/api/4/themes获取数据, 并填充到_subscribedList和_othersList中。

  更多API操作请详见知乎日报-API

• 加载数据完成后，调用setMentItems

- (void)getThemeList {
    [HttpOperation getRequestWithURL:@"themes" parameters:nil success:^(id responseObject) {
        NSDictionary *jsonDic = (NSDictionary*)responseObject;
        _subscribedList = [NSMutableArray array];
        NSArray *subArr = jsonDic[@"subscribed"];
        for (NSDictionary *dic in subArr) {
            ThemeItemModel *model = [[ThemeItemModel alloc] initWithDictionary:dic];
            [_subscribedList addObject:model];
        }
        _othersList = [NSMutableArray array];
        NSArray *othArr = jsonDic[@"others"];
        for (NSDictionary *dic in othArr) {
            ThemeItemModel *model = [[ThemeItemModel alloc] initWithDictionary:dic];
            [_othersList addObject:model];
        }
        [self setMentItems]; //完成UI的设置
    } failure:nil];
}

3、设置UI

• "TMItemView"的xib如下图

• 设置scrollview的内容视图大小为：1（首页）+ 订阅（_subscribedList） + 其他（_othersList）
• 设置Home Item,frame为(x=0,y=0, scrollview的宽，高度为44),名字为"首页"，图片为"Menu_Icon_Home",添加tap手势，手势函数为“showHome”,将控件添加到_mainScrollView
• 设置_subscribedList和_othersList数组，创建对应个数的themeItems和TMItemView，并配置参数，添加手势函数didSelectedMenuItem

- (void)setMentItems {
    _mainScrollView.contentSize = CGSizeMake(0, (1+_subscribedList.count+_othersList.count)*44.f);
    //设置Home Item
    TMItemView* homeItem = [[[NSBundle mainBundle] loadNibNamed:@"TMItemView" owner:self options:nil] firstObject];
    homeItem.frame = CGRectMake(0, 0, _mainScrollView.width, 44);
    homeItem.menuTitleLb.text = @"首页";
    homeItem.menuImaView.image = [UIImage imageNamed:@"Menu_Icon_Home"];
    [homeItem addGestureRecognizer:[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(showHome:)]];
    [_mainScrollView addSubview:homeItem];

    CGFloat tempHeight = homeItem.height;
    NSMutableArray *themeItems = [NSMutableArray arrayWithArray:_subscribedList];
    [themeItems addObjectsFromArray:_othersList];
    for (int i = 0; i<themeItems.count; i++) {
        TMItemView* itemView = [[[NSBundle mainBundle] loadNibNamed:@"TMItemView" owner:self options:nil] firstObject];
        itemView.frame = CGRectMake(0, tempHeight, _mainScrollView.width, 44);
        [itemView.menuImaView removeFromSuperview];
        [itemView addConstraint:[NSLayoutConstraint constraintWithItem:itemView.menuTitleLb attribute:NSLayoutAttributeLeading relatedBy:NSLayoutRelationEqual toItem:itemView attribute:NSLayoutAttributeLeading multiplier:1 constant:4]];
        ThemeItemModel *model = themeItems[i];
        itemView.menuTitleLb.text = model.name;
        [itemView addGestureRecognizer:[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(didSelectedMenuItem:)]];
        [itemView setTag:i];
        [_mainScrollView addSubview:itemView];
        tempHeight += 44.f;
    }
    _themeItems = themeItems;
}

4、 HomeItem的手势

• 返回MainViewController

- (void)showHome:(UIGestureRecognizer *)recognizer {
    AppDelegate *appdele = kAppdelegate;
    [appdele.mainVC showMainView];
}

5、ThemeItem的手势

• 使用presentViewController方式跳转到DailyThemesViewController

- (void)didSelectedMenuItem:(UIGestureRecognizer *)recognizer {
    ThemeItemModel *model = _themeItems[recognizer.view.tag];
    DailyThemesViewController *dailyThemeVC = [[DailyThemesViewController alloc] init];
    dailyThemeVC.themeID = model.themeID;
    UINavigationController *subNavigationVC = [[UINavigationController alloc] initWithRootViewController:dailyThemeVC];
    AppDelegate* appdele = kAppdelegate;
    [appdele.mainVC presentViewController:subNavigationVC animated:YES completion:nil];
}