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如果调用了特定值，我正在尝试发布特定图像，我的理解是这不起作用，因为 NSNumber 没有正确转换为 NSString，但我不确定这是否是问题。通过使用NSLog，我看到数据是通过的，比如一个评分是4.5，这样的话我想显示四星半，但是图片不贴。我已经验证了视图已链接，并且所有内容都已连接，但没有骰子。代码如下。反馈非常感谢！

- (void) connectionDidFinishLoading:(NSURLConnection *)connection
{
    [self setString];

    NSDictionary *dic = [NSJSONSerialization JSONObjectWithData:responseData options:0 error:nil];
    NSString *string1 = [dic objectForKey:@"name"];
    NSString *string2 = [[dic objectForKey:@"rating"]stringValue];

    NSLog(@"RATE STRING ---> %@", string2);

    if (string2 == @"0")
    {
        UIImage *img = [UIImage imageNamed:@"zerorate.png"];
        [imageView2 setImage:img];
    }
    if (string2 == @"1")
    {
        UIImage *img = [UIImage imageNamed:@"onerate.png"];
        [imageView2 setImage:img];
    }
    if (string2 == @"1.5")
    {
        UIImage *img = [UIImage imageNamed:@"onehalfrate.png"];
        [imageView2 setImage:img];
    }
    if (string2 == @"2")
    {
        UIImage *img = [UIImage imageNamed:@"tworate.png"];
        [imageView2 setImage:img];
    }
    if (string2 == @"2.5")
    {
        UIImage *img = [UIImage imageNamed:@"twohalfrate.png"];
        [imageView2 setImage:img];
    }
    if (string2 == @"3")
    {
        UIImage *img = [UIImage imageNamed:@"threerate.png"];
        [imageView2 setImage:img];
    }
    if (string2 == @"3.5")
    {
        UIImage *img = [UIImage imageNamed:@"threehalfrate.png"];
        [imageView2 setImage:img];
    }
    if (string2 == @"4")
    {
        UIImage *img = [UIImage imageNamed:@"fourrate.png"];
        [imageView2 setImage:img];
    }
    if (string2 == @"4.5")
    {
        UIImage *img = [UIImage imageNamed:@"fourhalfrate.png"];
        [imageView2 setImage:img];
    }
    if (string2 == @"5")
    {
        UIImage *img = [UIImage imageNamed:@"fiverate.png"];
        [imageView2 setImage:img];
    }
        [[self myTableView] reloadData];
}
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1 回答 1

2

的值string2 == @"0"未定义。试试if ([string2 isEqualToString:@"0"])。

此外，您可能会考虑在您返回的值之后命名您的 png 文件。然后你可以这样做：

UIImage *img = [UIImage imageNamed:string2];
[imageView2 setImage:img];

如果这不能解决问题，那么po string2在调试器中会发生什么？当你po img设置之后会发生什么，当你设置时会发生什么po imageView2？

于 2013-02-25T03:48:08.760 回答