如何在UITableView中向图像添加活动指示器？

问题描述

我创建了自定义 tableView 并在其他类中使用自定义 tableView 类来显示 tableView ..

I have created the Custom tableView and using custom tableView class in Other class to Show the tableView..

我从服务器加载图像并将其显示在 tableViewRow ..每个图片与...不同..

I am Loading the image from Server and displaying it in the tableViewRow.. each image is different in it..

在屏幕上只有7个图像中的7个将会来，当我向下滚动前3个图像重复一段时间，当这些图像加载它显示正确的图像..但最初，直到新图像将显示旧图像，我想要一个活动指示器来显示图片正在加载而不是旧图片..

On Screen only 7 out of 10 images will come, and when I scroll down the first 3 images are repeating for some time and when those images get load its showing proper images.. but initially till new images will come its showing old images, I want to put a activity indicator to show that the images are loading instead of old images..

我想在<$的位置添加活动指标 c $ c> image ，直到图片获取加载..

I want to add activity Indicator in the place of image, till the image get load..

我的代码是...

self.tableViewX = tableView;
static NSString *simpleTableIdentifier = @"SimpleTableCell";
SimpleTableCell *cell = (SimpleTableCell *)[tableView1 dequeueReusableCellWithIdentifier:simpleTableIdentifier];
 if (cell == nil)
{
    NSArray *nib = [[NSBundle mainBundle] loadNibNamed:@"SimpleTableCell" owner:self options:nil];
    cell = [nib objectAtIndex:0];
}
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^
    {
NSString *imageURL = [NSString stringWithFormat: @"www.xyz.image.png"];
cell.thumbnailImageView.image = [UIImage imageWithData:[NSData dataWithContentsOfURL:[NSURL URLWithString:imageURL]]];
 });

请帮我提供一些示例代码..

Please assist me with some sample code..

推荐答案

您可以使用AsyncImageView类文件同步加载图像，并在图片加载时显示活动指示

You can use "AsyncImageView" class files it will load image synchronically and it shows the activity indicator while image loading

您可以从以下链接下载AsyncImageView类文件： -

You can download "AsyncImageView" class files from following link:-https://www.dropbox.com/s/peazwjvky9fsjd7/Archive.zip

在.m文件中导入AsyncImageView类

in .m file import AsyncImageView Class

 #import "AsyncImageView.h"

in indexpath方法中的tableview单元格

in your tableview cell at indexpath method

-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
     static NSString *simpleTableIdentifier = @"SimpleTableCell";
     SimpleTableCell *cell = (SimpleTableCell *)[tableView1 dequeueReusableCellWithIdentifier:simpleTableIdentifier];
     if (cell == nil)
     {
           NSArray *nib = [[NSBundle mainBundle] loadNibNamed:@"SimpleTableCell" owner:self options:nil];
      cell = [nib objectAtIndex:0];
     }
     NSString *imageURL = [NSString stringWithFormat: @"www.xyz.image.png"];
     AsyncImageView *async = [[AsyncImageView alloc]initWithFrame:CGRectMake(0, 0, width, height)];
     [async loadImageFromURL:[NSURL URLWithString:imageURL]];
     [cell.thumbnailImageView addSubview:async];
}

试试这个你的问题会解决。

try this your problem will solve.

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