如何为图像和消息创造条件？

Posted 2023-03-16

【中文标题】如何为图像和消息创造条件？

【英文标题】：how to make condition for image and message?

【发布时间】：2016-04-08 12:09:59

【问题描述】：

在我的项目中，我从需要显示图像（如果可用）、消息（如果可用）、点赞数、cmets 数的 facebookSDK 获取数据。

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。

您可以理解我的问题可能与以下代码有关。

        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。

请帮帮我。

谢谢。

【问题讨论】：

您想将您的响应数据放到图像或标签上吗？

什么意思 "isEqual: 0" 你正在传递一个字符串值，你怎么能将字符串值与整数值进行比较。尝试 @"" 而不是 0

【参考方案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];