iOS - BaseViewController 的那些事儿

OK，小姐姐又来搞事情了，最近正在重构项目，今天就来分享一下项目中baseViewController的写法吧。当然可以视具体业务逻辑进行相应的增删改好吧。
直接上代码吧，直观点咯。

#import <UIKit/UIKit.h>

@interface HQBaseViewController : UIViewController<NavViewDelegate>
@property (nonatomic,strong) NavView * navView;

@property (nonatomic,strong) UITableView *tableView;
@property (nonatomic,strong) NSMutableArray *dataArray;
@property (nonatomic,assign) NSInteger currentPage;
@property (nonatomic,assign) NSInteger preQueryPage;

// 加载数据
-(void)loadData;

//上下拉刷新之后处理
-(void)handleRefreshWithCurrentPage:(NSInteger)currentPage totalPage:(NSInteger)totalPage ;

//添加上下拉刷新
-(void)addTableViewHeaderRefresh:(BOOL)headerRefresh footerRefresh:(BOOL)footerRefresh;

- (void)initNavViewWithRightStr:(NSString *) rightStr andNavTitle:(NSString *) navTitle andType:(NavViewType) type andNavBackgroundColor:(UIColor *)bgColor andTitleColor:(UIColor *)titleColor;

@end

首先主要是一个全局的导航栏咯---NavView (自己封装的，基本适应90%项目需求) 如果导航栏过于奇葩请老老实实再写一个吧，如果很多地方也是一样的奇葩样式建议封装成组件。
接下来就是一个tableview，就小姐姐的项目，90%的页面带tableview，所以把他写在基类里也挺方便的，当然如果没有tableview也无所谓，老老实实控制器该咋写咋写，还有就是把下拉刷新和上拉加载写在基类里，那么就不需要每个有类似功能的页面都写一遍代码，虽然是copy也是挺烦的不是么？有没有和我一样copy也不愿意的小哥哥！😅
接下来看看.m文件把

#import "HQBaseViewController.h"

@interface HQBaseViewController ()
<
UITableViewDelegate,
UITableViewDataSource
>
@end
@implementation HQBaseViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    self.edgesForExtendedLayout = UIRectEdgeNone;
    self.view.backgroundColor = [UIColor whiteColor];
    self.currentPage = 1;
    if (!_dataArray) {
        _dataArray = [NSMutableArray array];
    }
}

-(void)dealloc{
    [[NSNotificationCenter defaultCenter] removeObserver:self];
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    [[SDImageCache sharedImageCache] clearMemory];//清内存
    [[SDImageCache sharedImageCache] clearDisk];//清内存
    [[SDImageCache sharedImageCache] cleanDisk];//清内存
    // 1.取消正在下载的操作
    [[SDWebImageManager sharedManager] cancelAll];
    // 2.清除内存缓存
    [[SDWebImageManager sharedManager].imageCache clearMemory];
}
-(void)addTableViewHeaderRefresh:(BOOL)headerRefresh footerRefresh:(BOOL)footerRefresh{
    if (headerRefresh) {
        self.tableView.mj_header = [MJRefreshNormalHeader headerWithRefreshingTarget:self refreshingAction: @selector(loadNewData)];
    }
    if (footerRefresh) {
        self.tableView.mj_footer=[MJRefreshBackNormalFooter footerWithRefreshingTarget:self refreshingAction:@selector(loadMoreData)];
    }
}

-(void)loadNewData{
    self.currentPage=1;
    self.preQueryPage = 0;
    [self.tableView.mj_footer resetNoMoreData];
    [self loadData];
}

-(void)loadMoreData{
    self.currentPage++;
    [self loadData];
}

-(void)loadData{

}

-(void)handleRefreshWithCurrentPage:(NSInteger)currentPage totalPage:(NSInteger)totalPage {
    if (totalPage>0) {
        [self.tableView reloadData];
    }
    if (currentPage>=totalPage) {
        [self.tableView.mj_footer endRefreshingWithNoMoreData];
    }else{
        if (self.preQueryPage != currentPage && currentPage > 0 && currentPage < totalPage && self.tableView.contentSize.height < CGRectGetHeight(self.tableView.frame)) {
            [self loadMoreData];
        }else{
            [self.tableView.mj_footer endRefreshing];
        }
    }
    self.preQueryPage = currentPage;
    
    if ([self.tableView.mj_header isRefreshing]) {
        [self.tableView.mj_header endRefreshing];
    }
}
#pragma mark - 导航栏处理
- (void)initNavViewWithRightStr:(NSString *) rightStr andNavTitle:(NSString *) navTitle andType:(NavViewType) type andNavBackgroundColor:(UIColor *)bgColor andTitleColor:(UIColor *)titleColor
{
    self.navView = [NavView navViewWithBackIcon:nil andRightStr:rightStr andNavTitle:navTitle andType:type andNavBackgroundColor:bgColor andTitleColor:titleColor];
    self.navView.delegate=self;
    [self.view addSubview:self.navView];
}

/**
 * 导航栏左边按钮点击事件
 */
- (void)navViewClickLeftBtn:(NavView *)navView
{
    [self.navigationController popViewControllerAnimated:YES];
}


/**
 * 导航栏右边按钮点击事件 
 */
- (void)navViewClickRightBtn:(NavView *)navView
{
    [self.navigationController popViewControllerAnimated:YES];
}

@end

内容应该都能看懂哦，我挺相信你们的。那看看如何在页面中使用吧。
首先，创建的时候当然是要继承基类啦，要不你写基类干啥对吧😒

#import <UIKit/UIKit.h>

@interface HQMyOrderMainVC : YVBaseViewController

@end

添加导航条只需要

    // 添加导航条
    [self initNavViewWithRightStr:nil andNavTitle:@"我的订单" andType: NavViewTypeLeftIcon andNavBackgroundColor:nil andTitleColor:nil];

视业务需求决定是否需要上拉下拉功能

    // 添加下拉刷新和上拉加载
    [self addTableViewHeaderRefresh:YES footerRefresh:YES];

重写一下load()方法

// 下拉刷新
- (void)loadData {
    HQOrderBaseService *orderBaseService = [HQOrderBaseService defaultOrderBaseService];
    [orderBaseService getOrderList:[NSString stringWithFormat:@"%ld",(long)page] OrderType:status Success:^(NSDictionary *params) {
        [self.contentTbv.mj_header endRefreshing];
        [self.contentTbv.mj_footer endRefreshing];
        if (page==1) {
            if (self.orderCountArr.count!=0) {
                [self.orderCountArr removeAllObjects];
            }
        }
        if (self.orderCountArr.count!=0) {
            totalPage=[params[@"data"][@"pagination"][@"totalPage"] integerValue];
            [self handleRefreshWithCurrentPage:self.currentPage totalPage:totalPage];
        }
    } Error:^(NSString *errorMsg) {
        [MBProgressHUD Message:errorMsg For:self.view yOffset:0];
    } Fail:^(NSError *error) {
        [MBProgressHUD Message:@"请求数据失败！" For:self.view yOffset:0];
    }];
}

对了如果一进页面没有数据记得调用一下
[self.tableView.mj_header beginRefreshing];
其它就不说了，有什么想法再来和小姐姐交流。吃饭去了，饿死。

iOS - BaseViewController 的那些事儿

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