单击按钮时将NSMutable数组传递给UITableview [英] NSMutable array to UITableview when button clicked

问题描述

当我单击收件箱按钮时，我想在UITableView中显示我的电子邮件标题，我的电子邮件标题存储在NSMutable数组中，

i want to show my email headers in a UITableView when inbox button clicked, my email headers is stored in an NSMutable Array,

   -(IBAction)buttonInbox:(id)sender{

        NSLog(@"Inbox Button Clicked %@",buttonInbox);
        [self select:@"INBOX"];
        NSArray *lines = [self sendCommand:@"fetch 1:* (body[header.fields (from subject date)])"];



        //NSMutableArray *emaiArray= [[NSMutableArray alloc] init];
        NSMutableString *totalEmail= [NSMutableString stringWithString:@""];

        int counter = 0;
        int i =0;
        NSRange tmp;
        for(i=0;i<[lines count];i++)
        {

            NSString *line = [lines objectAtIndex:i];

            //NSLog(@" Burda %@" ,line);
            tmp = [line rangeOfString:@"Date:"];
            if( tmp.location != NSNotFound ) 
            {
                //NSLog(@" Date basildi %@" ,line);
                counter++;
                [totalEmail appendString:line ];

            }

            tmp = [line rangeOfString:@"From:"];
            if (tmp.location != NSNotFound ) {
                //NSLog(@" From basildi %@" ,line);
                counter++;
                [totalEmail appendString:line ];
            }

            tmp = [line rangeOfString:@"Subject:"];
            if (tmp.location != NSNotFound ) {
                //NSLog(@" Subject basildi %@" ,line);
                counter++;
                [totalEmail appendString:line ];
            }
            if (counter==3) {
                [emailList addObject:totalEmail];
                counter =0;
                NSLog(@"total Email %@" ,totalEmail);
                totalEmail = [NSMutableString stringWithString:@""];
            }
  }
}

到目前为止，我已经尝试过此操作，但在单击按钮的事件时找不到任何可放置此内容的准则，无论如何它仍然显示空的表格视图

i have tried this so far but couldnt find any guidelines to put this when button clicked events, this doesnt work any way it shows an empty tableview anyways

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

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    return [emailList count];
}

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

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:[NSString stringWithFormat:@"Cell %i",indexPath.section]];

    if (cell == nil) {

        cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:[NSString stringWithFormat:@"Cell %i",indexPath.section]] autorelease];

    }

    cell.textLabel.text = [emailList objectAtIndex: indexPath.row];

    return cell;
}

推荐答案

尝试在buttonInbox:选择器的末尾调用[[self tableView] reloadData].

Try calling [[self tableView] reloadData] at the end of the buttonInbox: selector.

这将刷新tableView.

This will refresh the tableView.

但是，我建议您查看UITableView的文档，并查看如何使用-(void) beginUpdates和-(void) endUpdates，以便您可以获得更好的视觉体验，并使表视图为进入的行设置动画.

I would, however, suggest looking at the documentation for UITableView and see how to use -(void) beginUpdates and -(void) endUpdates so you can get a better visual experience and let the table view animate the rows coming in.

这篇关于单击按钮时将NSMutable数组传递给UITableview的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！