ios - 如何为图像和消息创建条件？

Question

在我的项目中，我从 facebookSDK 获取数据，我需要在其中显示图像(如果可用)、消息(如果可用)、点赞数、评论数。

现在在我的数据中有一张图片，但消息不可用。我的字符串显示空消息。现在我需要提出 3 个条件。

您可以通过以下代码理解我的问题。

        self.arrData = nil;
        self.arrData = [[NSMutableArray alloc]init];
        self.arrData = [result[@"data"] mutableCopy];

        for (int i =0; i<self.arrData.count; i++)
        {

        NSString *strImage1 = [NSString stringWithFormat:@"%@",[[self.arrData objectAtIndex:i]valueForKey:@"full_picture"]];

        NSString *strComment =[NSString stringWithFormat:@"%@", [[self.arrData objectAtIndex:i ]valueForKey:@"message"]];
//in strComment i get @"(null)" message.

        NSString *strLike = [NSString stringWithFormat:@"%@", [[[[self.arrData objectAtIndex:i]valueForKey:@"likes"]valueForKey:@"summary"]valueForKey:@"total_count"]];
        NSString *strCommentCount = [NSString stringWithFormat:@"%@", [[[[self.arrData objectAtIndex:i]valueForKey:@"comments"]valueForKey:@"summary"]valueForKey:@"total_count"]];

        NSString *strTime = [NSString stringWithFormat:@"%@",[[self.arrData objectAtIndex:i]valueForKey:@"created_time"]];


        CustomSocialView *imageView1 = [[CustomSocialView alloc] initWithFrame:CGRectMake(0, 0, width, 170)];

        [self.vLayout addSubview:imageView1];


      //conditions      
            if (strImage1 == nil)// if image is not available.
            {
                NSLog(@"no image");
                [imageView1 setContentText:strComment like:strLike comment:strCommentCount time:strTime];
            }
            else if ([strCommentCount  isEqual: 0]) // if Message is not available // may be here i am wrong.
            {
                NSLog(@"no msg");
                [imageView1 setImage:strImage1 like:strLike comment:strCommentCount time:strTime];
            }
            else 
            {
                NSLog(@"Both image and msg are available");
                [imageView1 setImage:strImage1 setContentText:strComment like:strLike comment:strCommentCount time:strTime];
            }

现在我很困惑如何为我的代码设置条件。

请帮助我。

谢谢。

Answer 1

试试这个:

for (int i = 0; i<self.arrData.count; i++)
    {
       //your code

        if (strImage1 != nil && [strCommentCount intValue] != 0 )// if image is not available.
        {
            NSLog(@"Both image and msg are available");
            [imageView1 setImage:strImage1 setContentText:strComment like:strLike comment:strCommentCount time:strTime];
        }
        else
        {
            if ([strCommentCount intValue] != 0)
            {
                NSLog(@"no image");
                [imageView1 setContentText:strComment like:strLike comment:strCommentCount time:strTime];
            }
            else
            {
                NSLog(@"no msg");
                [imageView1 setImage:strImage1 like:strLike comment:strCommentCount time:strTime];
            }
        }
    }