YYXC_School/LN_School/StuExamsListVC.m

//
//  StuExamsListVC.m
//  LN_School
//
//  Created by EchoShacolee on 2017/6/16.
//  Copyright © 2017年 Danson. All rights reserved.
//

#import "StuExamsListVC.h"
#import "MengBanView.h"
#import "DateView.h"
#import "MJRefresh.h"
#import "StuExamListCell.h"

typedef NS_ENUM(NSInteger, MyGetDataType) {
    //正常请求数据
    MyGetDataTypeNomal=0,
    //下拉刷新请求数据
    MyGetDataTypeHeaderRefresh,
    //上拉加载更多请求数据
    MyGetDataTypeFooterRefresh
};

@interface StuExamsListVC ()<UITableViewDataSource,UITableViewDelegate>
{
    MengBanView * _mengBanView;
    //记录页书
    NSInteger _currentPageNum;
    //正在加载的状态
    BOOL _IS_LOADING;
    //加载数据的类型
    MyGetDataType _getDataType;
    
    //
    HolderView *_holderV;
}

@property (nonatomic,retain)NSMutableArray * dataurce;
@property(nonatomic,retain)UITableView *tableView;

@end

@implementation StuExamsListVC

- (void)viewDidLoad {
    [super viewDidLoad];
  
    self.navigationItem.title = @"预考成绩";
    self.view.backgroundColor = KBackGroundColor;
    self.navigationController.navigationBar.translucent = NO;
    
    _dataurce = [[NSMutableArray alloc]init];
    _currentPageNum = 0;
    _IS_LOADING = NO;
    _getDataType = MyGetDataTypeNomal;
    
    //处理底部”上拉加载更多“显示异常（5c，ios10）
    UIView *view = [[UIView alloc]init];
    [self.view addSubview:view];
    
    _tableView = [[UITableView alloc]initWithFrame:kFrame style:UITableViewStyleGrouped];
    _tableView.height -= kNavOffSet+SafeAreaBottomHeight;
    _tableView.backgroundColor = KBackGroundColor;
    _tableView.estimatedSectionHeaderHeight = 0;
    _tableView.estimatedSectionFooterHeight = 0;
    _tableView.dataSource = self;
    _tableView.delegate = self;
    _tableView.separatorStyle = UITableViewCellSeparatorStyleNone;
    _tableView.tableFooterView = [UIView new];
    [self.view addSubview:_tableView];
    
    [self setRefreshAction];
    [self goBackFirstVCByNavigation];
    [self customRightBtn];
    
    [self getData];
    
    _holderV = [[HolderView alloc]initWithFrame:_tableView.frame];
    [_holderV freshBlock:^{
        [self headerRefresh];
    }];
    [self.view addSubview:_holderV];
    
    
    
}

-(void)customRightBtn{
    
    UIButton *btn = [UIButton buttonWithType:UIButtonTypeSystem];
    btn.frame = CGRectMake(0, 0, 80, 44);
    btn.titleLabel.font = [UIFont systemFontOfSize:17];
    [btn setTitle:@"条件搜索" forState:UIControlStateNormal];
    [btn setTitleColor:defGreen forState:UIControlStateNormal];
    [btn addTarget:self action:@selector(search) forControlEvents:UIControlEventTouchUpInside];
    self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:btn];
}

-(void)search{
    
    [self.navigationController popViewControllerAnimated:YES];
    
}

#pragma mark - 下拉刷新，上拉加载 -

-(void)setRefreshAction{
    
    // 下拉刷新
    __weak typeof(self) weakSelf = self;
    MJRefreshNormalHeader *mj_header = [MJRefreshNormalHeader headerWithRefreshingBlock:^{
        [weakSelf headerRefresh];
    }];
    _tableView.mj_header = mj_header;
    
    MJRefreshBackNormalFooter *mj_footer = [MJRefreshBackNormalFooter footerWithRefreshingBlock:^{
        [weakSelf footerRefresh];
    }];
    _tableView.mj_footer = mj_footer;
    
}


#pragma mark - 数据加载更多和刷新 -

-(void)headerRefresh{
    //设置获取数据的方式
    _getDataType=MyGetDataTypeHeaderRefresh;
    //加载数据
    [self getData];
    [_tableView.mj_header endRefreshing];
}

-(void)footerRefresh{
    //设置获取数据的方式
    _getDataType=MyGetDataTypeFooterRefresh;
    //加载数据
    [self getData];
    [_tableView.mj_footer endRefreshing];
}

#pragma mark tableView代理方法
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView{
    
    return self.dataurce.count;
}

-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
    return 1;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
    
    StuExamListCell *cell = [StuExamListCell cellForTableView:tableView];
    cell.dic = _dataurce[indexPath.section];
    
    return cell;
}

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath{
    
    return 110;
}

-(CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section{
    
    return 15;
}

-(CGFloat)tableView:(UITableView *)tableView heightForFooterInSection:(NSInteger)section{
    
    return 0.1f;
}

#pragma mark 数据请求
-(void)getData{
    
    //判断当前是否正在加载数据。如果正在加载数据，直接return。
    if (_IS_LOADING) {
        return;
    }
    
    if (![NetManager connectedToNetWork]) {
        showMsgUnconnect();
        return;
    }
    
    _IS_LOADING=YES;
    //获取第一页数据
    NSInteger needLoadPage;
    needLoadPage=_currentPageNum+1;
    if (_getDataType==MyGetDataTypeHeaderRefresh) {
        needLoadPage=1;
    }
    
    
    [self.requestDic setObject:@"1" forKey:@"isPage"];
    [self.requestDic setObject:@"10" forKey:@"pageSize"];
    [self.requestDic setObject:[NSString stringWithFormat:@"%ld",(long)needLoadPage] forKey:@"currentPage"];
    
    if (![NetManager connectedToNetWork]) {
        showMsgUnconnect();
        return;
    }
    
    NSString* method = @"getStuExams";
    __weak typeof(self) weakSelf = self;
    [MBProgressHUD showLoadToView:self.view];
    [NetManager requestAnythingWithURL:method dictionary:self.requestDic dataArray:nil completion:^(NSDictionary *root) {
        
        [MBProgressHUD hideHUDForView:self.view];
        _holderV.hidden = NO;
        //设置加载状态
        _IS_LOADING=NO;
        
        if (!root) {
            ShowErrorMsg(@"请求失败!");
            return;
        }
        if ([root[@"code"] isEqualToString:@"1"]) {
            ShowErrorMsg(root[@"msg"]);
            return;
        }
        
        //处理数据
        //如果获取到了数据，而且是下拉刷新，清空数组。
        if (_getDataType==MyGetDataTypeHeaderRefresh){
            [weakSelf.dataurce removeAllObjects];
        }
        //追加数据
        [weakSelf.dataurce addObjectsFromArray:root[@"body"]];
        if (weakSelf.dataurce.count != 0) {
            _holderV.hidden = YES;
        }
        //计数器＋1
        _currentPageNum=needLoadPage;
        //刷新界面
        [weakSelf.tableView reloadData];
        
        //恢复初始状态。
        _getDataType=MyGetDataTypeNomal;
    }];
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}


/*
#pragma mark - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    // Get the new view controller using [segue destinationViewController].
    // Pass the selected object to the new view controller.
}
*/

@end