如何在ios5中替换此语句

时间:2012-02-16 05:26:16

标签: iphone ios

当我写'stringWithContentsOfURL'时,我收到'stringWithContentsOfURL已弃用'的错误。

    -(CLLocationCoordinate2D) addressLocation 
{
        NSString *urlString = [NSString stringWithFormat:@"http://maps.google.com/maps/geo?q=%@&output=csv", 
      [addressField.text stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]];
        NSString *locationString = [NSString stringWithContentsOfURL:[NSURL URLWithString:urlString]];
        NSArray *listItems = [locationString componentsSeparatedByString:@","];

        double latitude = 0.0;
        double longitude = 0.0;

        if([listItems count] >= 4 && [[listItems objectAtIndex:0] isEqualToString:@"200"]) {
            latitude = [[listItems objectAtIndex:2] doubleValue];
            longitude = [[listItems objectAtIndex:3] doubleValue];
        }
        else {
            //Show error
        }
        CLLocationCoordinate2D location;
        location.latitude = latitude;
        location.longitude = longitude;

        return location;
    }

我该如何更换这条线。谢谢!

NSString *locationString = [NSString stringWithContentsOfURL:[NSURL URLWithString:urlString]];

2 个答案:

答案 0 :(得分:1)

已被

取代
stringWithContentsOfURL:encoding:error: 

stringWithContentsOfURL:usedEncoding:error:

示例代码

NSError* error = nil;
NSString* locationString = [NSString stringWithContentsOfURL:[NSURL URLWithString:urlString] encoding:NSASCIIStringEncoding error:&error];

答案 1 :(得分:0)

查看stringWithContentsOfURL的文档。在NSString文档中,它会告诉您确切地使用哪些方法来替换已弃用的方法,并且知道如何操作,因为检查这类内容的文档是您经常要做的事情。