如何从地址簿中检索10-10个联系人

Question

我想实现从地址簿一次获取或加载10个联系人。很可能从地址簿中检索所有联系人，但一次显示10-10个联系人。我正在检索图像，名字，姓氏所有iphone联系人。我想实现这个电子邮件反向电子邮件联系人也像10-10电子邮件联系人。 这是我的示例代码：

SData *imageData = (NSData *)CFBridgingRelease(ABPersonCopyImageDataWithFormat(ref, kABPersonImageFormatThumbnail)) ;

            CFStringRef firstName1, lastName1;


            firstName1 = ABRecordCopyValue(ref, kABPersonFirstNameProperty);
            lastName1  = ABRecordCopyValue(ref, kABPersonLastNameProperty);
            NSString *name=[[NSString alloc]init];


            if ([[NSString stringWithFormat:@"%@",firstName1] isEqualToString:@"(null)"] && [[NSString stringWithFormat:@"%@",lastName1] isEqualToString:@"(null)"])
            {

                name = @"No Name";
            }
            else if([[NSString stringWithFormat:@"%@",firstName1] isEqualToString:@"(null)"] && ![[NSString stringWithFormat:@"%@",lastName1] isEqualToString:@"(null)"])
            {

                name = [NSString stringWithFormat:@"%@",lastName1];
            }

           else
           {
                name = [NSString stringWithFormat:@"%@",firstName1];

           }

           name= [ name  capitalizedString];

            EmailandCotactsModel *emailmodel=[[EmailandCotactsModel alloc]init];
            emailmodel.emailemailstring=(__bridge NSString *)(contno);
            emailmodel.emailusernamestring=name;


            if(!imageData)
            {
                NSString *path = [[NSBundle mainBundle] pathForResource:@"NoImage" ofType:@"png"];
                NSData *photoData = [NSData dataWithContentsOfFile:path];
                emailmodel.emailimagesData=photoData;
            }
            else
            {
                emailmodel.emailimagesData=imageData;

            }


            [emailarray addObject:emailmodel];

            callsmsDataBool=NO;

            NSLog(@"table email count %d and i %d",emailarray.count,tablecountint);
            if(emailarray.count==tablecountint)
            {

                NSLog(@"table email reload");

                tablecountint=tablecountint+10;

                dispatch_async( dispatch_get_global_queue(0,0),^{
                    [self reloadtable];
                });

                NSLog(@"perform selection in bg");

            }

        }
    }


    [self.tableview reloadData];


   if(!emailarray.count && [socialstring isEqualToString:@"Email"])
   {
       selectedlabel.text=@"Emails not found";
   }
   else if(emailarray.count && [socialstring isEqualToString:@"Email"])
   {
      // selectedlabel.text=@"Email";

       selectedlabel.text=[NSString stringWithFormat:@"%ld",nPeople];
   }
   else if(!emailarray.count && [socialstring isEqualToString:@"SMS"])
   {
       selectedlabel.text=@"Phone no's not found";
   }
   else if(emailarray.count && [socialstring isEqualToString:@"SMS"])
   {
       selectedlabel.text=@"SMS";
   }
   else
   {
        selectedlabel.text=@"";
   }

    [tableview reloadData];

任何有价值的建议都将受到赞赏....

提前致谢。

Answer 1

通过调用此方法将一个数组中的所有联系人复制到另一个数组和使用该新数组的cal表重新加载方法后，最初将lowerlimit = 0和upperlimit = 10;

-(void)tabledataloadingmethod
{
    for (lowerlimit=0+lowerlimit; lowerlimit<upperlimit; lowerlimit++)
    {
        if (lowerlimit<[self.array1 count])
        {
            OBJECT *obj=[self.array1 objectAtIndex:lowerlimit];
            [self.array2 addObject:obj];

        }

    }
    [self.tbleview reloadData];

}  

表delagete方法cellforrowatindex使用此

    if ([self.array2 count]==indexPath.row)
            {


                UITableViewCell *cell1=[self.tbleview dequeueReusableCellWithIdentifier:@"cells"];
                if(cell1==nil)
                {
                    cell1=[[UITableViewCell alloc]initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:@"Cells"];
                }

                cell1.textLabel.textColor = [UIColor whiteColor];
                cell1.textLabel.text=@"Loading more...";

                [self performSelector:@selector(loadmorecells) withObject:nil afterDelay:0.2];



                return cell1;
  }    
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{

    if ([self.array2 count]>0 && ([self.array2 count]<[self.array1 count]))
    {
        return [self.array2 count]+1;
    }
    else
    {
        return [self.array2 count];
    }
} 

这里我们在loadmorecells方法中增加lowerlimit和upperlimit

-(void)loadmorecells
    {

        lowerlimit = upperlimit;

        upperlimit = upperlimit +10;
        [self tabledataloadingmethod];
    }