1v1_7/MSYOUPAI/3rd/BaseVC/ZCBaseTableVC.m

//
//  ZCBaseTableVC.m
//  XLChat
//
//  Created by 张灿 on 2017/10/24.
//  Copyright © 2017年 张灿. All rights reserved.
//

#import "ZCBaseTableVC.h"
#import "UIScrollView+EmptyDataSet.h"

@interface ZCBaseTableVC ()<DZNEmptyDataSetSource,DZNEmptyDataSetDelegate>

@end

@interface ZCBaseTableVC ()

@end

@implementation ZCBaseTableVC

- (void)viewDidLoad {
    [super viewDidLoad];
    self.isShowEmptyData = YES;
    self.isAllowScroll = NO;
    self.tableView.emptyDataSetSource = self;
    self.tableView.emptyDataSetDelegate = self;
}

-(UIImage *)imageForEmptyDataSet:(UIScrollView *)scrollView
{
    if (self.noDataImgName) {
        return [UIImage imageNamed:self.noDataImgName];
    }
    return [UIImage new]/*[UIImage imageNamed:@"vqu_images_air_no"]*/;
   
}

- (NSAttributedString *)titleForEmptyDataSet:(UIScrollView *)scrollView
{
        NSString *text = self.noDataTitle?self.noDataTitle:@""/*@"暂无数据"*/;
    
        NSDictionary *attributes = @{NSFontAttributeName: [UIFont systemFontOfSize:14.0f],
                                     NSForegroundColorAttributeName: HexColorFromRGB(0x6C6B70)};
    
        return [[NSAttributedString alloc] initWithString:text attributes:attributes];
   
}

- (NSAttributedString *)descriptionForEmptyDataSet:(UIScrollView *)scrollView
{
    NSString *text = self.noDataDetailTitle;
    
    NSMutableParagraphStyle *paragraph = [NSMutableParagraphStyle new];
    paragraph.lineBreakMode = NSLineBreakByWordWrapping;
    paragraph.alignment = NSTextAlignmentCenter;
    
    NSDictionary *attributes = @{NSFontAttributeName: [UIFont systemFontOfSize:17.0f],
                                 NSForegroundColorAttributeName: [UIColor lightGrayColor],
                                 NSParagraphStyleAttributeName: paragraph};
    
    return self.noDataDetailTitle?[[NSAttributedString alloc] initWithString:text attributes:attributes]:nil;
}
- (BOOL)emptyDataSetShouldAllowScroll:(UIScrollView *)scrollView{
    return self.isAllowScroll;
}
- (BOOL)emptyDataSetShouldAllowTouch:(UIScrollView *)scrollView
{
    return YES;
}

- (BOOL)emptyDataSetShouldDisplay:(UIScrollView *)scrollView
{
    return self.isShowEmptyData;
}

- (CGFloat)verticalOffsetForEmptyDataSet:(UIScrollView *)scrollView
{
    
    //    return  (self.tableView.frame.size.height-50)/2-(self.tableView.frame.size.height-self.tableView.tableHeaderView.frame.size.height-50)/2;
    //    if(self.tableView.tableHeaderView !=nil){
    //    return self.tableView.tableHeaderView.frame.size.height-(self.tableView.frame.size.height-50-50)/2;//有tableHeaderview的时候距离tableHeaderView为50，还有一个50代表实际的图片，文字按钮加间距的高度总和
    //   }else{
    //       return 0;//没有tableHeaderView的时候在中间显示
    //   }
    
    return 0;
}
- (NSAttributedString *)buttonTitleForEmptyDataSet:(UIScrollView *)scrollView forState:(UIControlState)state
{
    NSDictionary *attributes = @{NSFontAttributeName: [UIFont boldSystemFontOfSize:16.0f]};
    
    return self.btnTitle?[[NSAttributedString alloc] initWithString:self.btnTitle attributes:attributes]:nil;
}

- (UIImage *)buttonImageForEmptyDataSet:(UIScrollView *)scrollView forState:(UIControlState)state
{
    return self.btnImgName?[UIImage imageNamed:self.btnImgName]:nil;
}

- (void)emptyDataSet:(UIScrollView *)scrollView didTapButton:(UIButton *)button
{
    [self buttonEvent];
}
- (nullable UIColor *)backgroundColorForEmptyDataSet:(UIScrollView *)scrollView{
    return [UIColor clearColor];
}
//解决和上下拉刷新控件一起显示时候的问题
- (void)emptyDataSetWillAppear:(UIScrollView *)scrollView {
    scrollView.contentOffset = CGPointZero;
}
- (void)emptyDataSetDidAppear:(UIScrollView *)scrollView{
    scrollView.contentOffset = CGPointZero;
}
- (void)emptyDataSetWillDisappear:(UIScrollView *)scrollView{
    scrollView.contentOffset = CGPointZero;
}

/// 下拉刷新回调方法，具体实现代码需要子类实现
- (void)headerRefreshing{
    
}

/// 上拉加载回调方法，具体实现代码需要子类实现
- (void)footerRefreshing{
    
}
#pragma mark 按钮事件
-(void)buttonEvent
{
    
}

-(UITableView *)tableView
{
    if(_tableView == nil)
    {
        _tableView = [[UITableView alloc] initWithFrame:CGRectMake(0, NavBarHeight,[[UIScreen mainScreen] bounds].size.width,[[UIScreen mainScreen] bounds].size.height-NavBarHeight) style:UITableViewStyleGrouped];
        _tableView.backgroundColor = [UIColor clearColor];
        _tableView.tableFooterView = [UIView new];
        _tableView.tableHeaderView = [UIView new];
        _tableView.showsVerticalScrollIndicator = NO;
        _tableView.showsHorizontalScrollIndicator = NO;
        _tableView.tableHeaderView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 0, CGFLOAT_MIN)];
        if (@available(iOS 15.0, *)) {
            _tableView.sectionHeaderTopPadding = 0;
        }
    }
    
    return _tableView;
}
-(CGFloat)tableView:(UITableView *)tableView heightForFooterInSection:(NSInteger)section
{
  return 0.01f;
}

- (MJRefreshNormalHeader *)refreshHeader{
    if(!_refreshHeader){
        // 设置回调（一旦进入刷新状态，就调用target的action，也就是调用self的headerRefreshing方法）
        _refreshHeader = [MJRefreshNormalHeader headerWithRefreshingTarget:self refreshingAction:@selector(headerRefreshing)];
    }
    return _refreshHeader;
}

- (MJRefreshAutoNormalFooter *)loadMoreFooter{
    if(!_loadMoreFooter){
        // 设置回调（一旦进入刷新状态，就调用target的action，也就是调用self的footerRefreshing方法）
        _loadMoreFooter = [MJRefreshAutoNormalFooter footerWithRefreshingTarget:self refreshingAction:@selector(footerRefreshing)];
        _loadMoreFooter.triggerAutomaticallyRefreshPercent = 0.1;
    }
    return _loadMoreFooter;
}

- (MJRefreshAutoNormalFooter *)noLoadMoreFooter{
    if(!_noLoadMoreFooter){
        _noLoadMoreFooter = [[MJRefreshAutoNormalFooter alloc]initWithFrame:CGRectZero];
        _noLoadMoreFooter.backgroundColor = [UIColor clearColor];
        _noLoadMoreFooter.state = MJRefreshStateIdle;
        _noLoadMoreFooter.mj_h = 0;//重新设置高度，不让看到它，并且当设置为table.footer时，table会自动调整自己的高度
        _noLoadMoreFooter.clipsToBounds = YES;//不让看不到菊花
    }
    return _noLoadMoreFooter;
}
@end