erpsuiteios/Redant Drivers/Apex And Drivers/Message/RAMessageViewController.m

//
//  RAMessageViewController.m
//  Apex And Drivers
//
//  Created by Jack on 2018/9/11.
//  Copyright © 2018年 USAI. All rights reserved.
//

#import "RAMessageViewController.h"
#import "RAProgressHUD.h"
#import "UIScrollView+Empty.h"
#import "RAMessageModel.h"
#import "JLRefreshFooter.h"
#import "RAEmptyView.h"

static const NSInteger limit = 20;

typedef enum {
    
    LoadDataActionTypeInitial,
    LoadDataActionTypeReLoad,
    LoadDataActionTypeLoadMore
    
} LoadDataActionType;

@interface RAMessageViewController ()<JLRefreshDelegate>

@property (nonatomic,strong) IBOutlet UITableView *messageTableView;

@property (nonatomic,strong) UIRefreshControl *refreshControl;
@property (nonatomic,strong) NSMutableArray<RAMessageModel *> *messageArray;
@property (nonatomic,strong) JLRefreshFooter *refreshFooter;

@end

@implementation RAMessageViewController

+ (instancetype)viewControllerFromStoryboard {
    RAMessageViewController *messageVC = [[UIStoryboard storyboardWithName:@"message" bundle:nil] instantiateViewControllerWithIdentifier:[self storyboardID]];
    return messageVC;
}


- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    
    [self configTableView];
    
    [self loadData];
}

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

#pragma mark - Config

- (void)configTableView {
    
    if (@available(iOS 11,*)) {
        self.tableView.contentInsetAdjustmentBehavior = UIScrollViewContentInsetAdjustmentNever;
    } else {
        self.automaticallyAdjustsScrollViewInsets = NO;
    }
    self.tableView.tableFooterView = [UIView new];
    self.tableView.backgroundColor = [UIColor colorWithRed:0.9 green:0.9 blue:0.9 alpha:1];
    
    UIRefreshControl *refresh = [[UIRefreshControl alloc] init];
    [refresh addTarget:self action:@selector(refreshControlValueChanged:) forControlEvents:UIControlEventValueChanged];
    [self.tableView addSubview:refresh];
    self.refreshControl = refresh;
    
    self.refreshFooter = [[JLRefreshFooter alloc] init];
    self.refreshFooter.refreshDelegate = self;
    self.tableView.jl_footer = self.refreshFooter;
    
    // empty
    __weak typeof(self) weakSelf = self;
    self.tableView.emptyView = [RAEmptyView emptyViewWithTapBlk:^(id sender) {
        [weakSelf loadData];
    }];
}

#pragma mark - Getter

- (UITableView *)tableView {
    return self.messageTableView;
}

- (NSArray *)messages {
    return self.messageArray;
}

- (NSMutableArray<RAMessageModel *> *)messageArray {
    if (!_messageArray) {
        _messageArray = [NSMutableArray array];
    }
    return _messageArray;
}

- (NSUInteger)messageCount {
    return self.messageArray.count;
}

#pragma mark - Action

- (void)refreshControlValueChanged:(UIRefreshControl *)refresh {
    [self reloadData];
}

#pragma mark - Data

- (void)loadData:(LoadDataActionType)actionType {
    
    if (self.loading) {
        return;
    }
    self.loading = YES;
    
    [self.tableView hideEmpty];
    
    NSInteger offset = 0;
    if (actionType == LoadDataActionTypeLoadMore) {
        offset = [self messageCount];
    }
    
    // show progress
    RAProgressHUD *hud = [RAProgressHUD showHUDOnView:self.view];
    
    __weak typeof(self) weakSelf = self;
    dispatch_async(dispatch_get_global_queue(0, 0), ^{
        
        NSDictionary *json = [RADataProvider requestMessage:offset limit:limit];
        
        dispatch_async(dispatch_get_main_queue(), ^{
            
            // dismiss progress
            [hud dismiss];
            if (weakSelf.refreshControl.isRefreshing) {
                [weakSelf.refreshControl endRefreshing];
            }
            
            if (weakSelf) {
                __strong typeof(weakSelf) strongSelf = weakSelf;
                
                if (actionType == LoadDataActionTypeLoadMore) {
                    [strongSelf.refreshFooter performSelector:@selector(endRefresh)];
                }
                
                int result = [[json objectForKey:@"result"] intValue];
                if (result == RESULT_TRUE) {
                    
                    NSArray *messages = [json objectForKey:@"messages"];
                    
                    if (actionType != LoadDataActionTypeLoadMore) {
                        [strongSelf.messageArray removeAllObjects];
                    } else {
                        if (messages.count < limit) {
                            [strongSelf.refreshFooter performSelector:@selector(noMoreData)];
                        }
                    }
                    
                    for (int i = 0; i < messages.count; i++) {
                        NSDictionary *msg = [messages objectAtIndex:i];
                        RAMessageModel *model = [RAMessageModel new];
                        [model setValuesForKeysWithDictionary:msg];
                        [strongSelf.messageArray addObject:model];
                    }
                    
                    [strongSelf.tableView reloadData];
                    
                } else {
                    
                    [strongSelf.messageArray removeAllObjects];
                    strongSelf.tableView.contentOffset = CGPointZero;
                    [strongSelf.tableView reloadData];
                    
                    // process error
                    NSString *msg = [json objectForKey:@"err_msg"];
                    //                    [strongSelf showAlert:msg];
                    [strongSelf showAlertTilte:@"Warning" message:msg];
                }
            }
            
            weakSelf.loading = NO;
            
            if ([weakSelf messageCount] == 0) {
                [weakSelf.tableView showEmpty];
            } else {
                [weakSelf.tableView hideEmpty];
            }
        });
        
    });
}

- (void)loadData {
    [self loadData:LoadDataActionTypeInitial];
}

- (void)reloadData {
    [self loadData:LoadDataActionTypeReLoad];
}

- (void)loadMore {
    [self loadData:LoadDataActionTypeLoadMore];
}

#pragma mark - Refresh Delegate

- (void)jl_beginRefresh:(JLRefreshBasis *)refresh {
    
    if (refresh == self.refreshFooter) {
        if(refresh.state==JLRefreshStateNoMore) //数据取完不再加载
            return;
        [self loadMore];
    }
}

- (void)jl_pullRefresh:(JLRefreshBasis *)refresh state:(JLRefreshState)state percentage:(float)percentage {
    
}

- (void)jl_endRefresh:(JLRefreshBasis *)refresh {
    
}

@end