Question

我正在开发一个聊天应用程序。我的一些类是单例，因此我使用了很多静态方法。

在app delegate中收到新消息时。它应该将它发送到我的incomingChat viewController。

我能够在viewcontroller中获取静态方法的新消息。但我不能从静态方法重新加载表。

InCommingVC.h

#import <UIKit/UIKit.h>

@interface InCommingVC : UIViewController
@property (weak, nonatomic) IBOutlet UINavigationBar *navigationBarTitle;
@property (weak, nonatomic) IBOutlet UITableView *incommingTable;

+ (void) sendIncommingChats:(NSDictionary *) chatDetails;
+ (void) recieveIncomingChat:(NSDictionary *) chatDetails;

@end

InCommingVC.m

#import "InCommingVC.h"
#import "AppDelegate.h"
#import "IncommingItemObject.h"

static NSMutableArray *incomminglist;

@interface InCommingVC (){
    AppDelegate *delegate;
}

@end

@implementation InCommingVC

- (void)viewDidLoad {
    [super viewDidLoad];
    self.navigationBarTitle.topItem.title = @"Incomming Chats";

}



+ (void) recieveIncomingChat:(NSDictionary *) chatDetails{
    NSLog(@"GOT A NEW recieveIncomingChat");
    NSString *CompanyId = [chatDetails objectForKey:@"CompanyId"];
    NSString *ConnectionId = [chatDetails objectForKey:@"ConnectionId"];
    NSString *CountryCode = [chatDetails objectForKey:@"CountryCode"];
    NSString *Department = [chatDetails objectForKey:@"Department"];
    NSString *Name = [chatDetails objectForKey:@"Name"];
    NSString *StartTime = [chatDetails objectForKey:@"StartTime"];
    NSString *TimeZone = [chatDetails objectForKey:@"TimeZone"];
    NSString *VisitorID = [chatDetails objectForKey:@"VisitorID"];
    NSString *WidgetId = [chatDetails objectForKey:@"WidgetId"];

    NSLog(@"------------------------------------------------------------------------------");
    NSLog(@"CompanyId      : %@" , CompanyId);
    NSLog(@"ConnectionId   : %@" , ConnectionId);
    NSLog(@"CountryCode    : %@" , CountryCode);
    NSLog(@"Department     : %@" , Department);
    NSLog(@"Name           : %@" , Name);
    NSLog(@"StartTime      : %@" , StartTime);
    NSLog(@"TimeZone       : %@" , TimeZone);
    NSLog(@"VisitorID      : %@" , VisitorID);
    NSLog(@"WidgetId       : %@" , WidgetId);
    NSLog(@"------------------------------------------------------------------------------");

    IncommingItemObject *item = [[IncommingItemObject alloc] init];
    [item setCompanyId:CompanyId];
    [item setConnectionId:ConnectionId];
    [item setCountryCode:CountryCode];
    [item setDepartment:Department];
    [item setName:Name];
    [item setStartTime:StartTime];
    [item setTimeZone:TimeZone];
    [item setVisitorID:VisitorID];
    [item setWidgetId:WidgetId];

    if (incomminglist.count == 0) {
        incomminglist = [[NSMutableArray alloc] init];
        [incomminglist addObject:item];
        [[InCommingVC incommingTable] reloadData];
    } else {
        [incomminglist addObject:item];
    }

    NSLog(@"count %i", incomminglist.count);
}

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

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    return incomminglist.count;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {

    NSString *cellIdentifier = @"identify_incomming";
    UITableViewCell *cell = [self.incommingTable dequeueReusableCellWithIdentifier:cellIdentifier];
    if (cell == nil) {
        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellIdentifier];
    }

    IncommingItemObject *item = [incomminglist objectAtIndex:indexPath.row];

    UIImageView *CountryImage = (UIImageView *)[cell viewWithTag:5010];
    [CountryImage setImage:[UIImage imageNamed:item.CountryCode]];

    UILabel *visitorName = (UILabel *)[cell viewWithTag:5011];
    visitorName.text = item.Name;

    UILabel *visitStartTime = (UILabel *)[cell viewWithTag:5012];
    visitStartTime.text = item.StartTime;

    return cell;
}

我想从静态方法更新incommingTable。有人能帮我吗。 TNX。

我有这个错误

/ Users / zupportdesk / Desktop / MyIOSApps / Chat System / Chat System / InCommingVC.m:96:23：选择器没有已知的类方法＆＃39; incommingTable＆＃39;

做着

[[InCommingVC incommingTable] reloadData];

Answer 1

2种方式：

1 - 制作共享实例。致电：

[[[self class] sharedInstance].tableView reloadData];

2 - 让您上课确认一些通知，您将在收到有效负载消息（聊天词典）后发送。确保在视图控制器取消分配

时取消注册通知

Answer 2

   SELECT ufs.tablespace_name ,(SUM(bytes) /(1024*1024)) AS FREESPACE
    FROM user_free_space ufs
    WHERE EXISTS
      (SELECT DISTINCT tablespace_name
      FROM all_tables
      WHERE tablespace_name  IS NOT NULL
      AND ufs.tablespace_name = tablespace_name
      AND tablespace_name     =
        (SELECT DEFAULT_TABLESPACE FROM USER_USERS WHERE USERNAME ='USER1'
        )
      )
    GROUP BY tablespace_name;

请尝试这一点并确保IBOUTLET正确连接

从静态方法更新UI表视图

2 个答案: