[移动开发]iOS修改URL的某个参数值

c 方法

NSString *updateQuery(NSString *url, NSString *key, NSString *value)
{
    if (isBlankString(url)) {
        return @"";
    }
    NSURLComponents *components = [NSURLComponents componentsWithString:url];
    NSMutableArray *tmpQueryItems = [NSMutableArray arrayWithArray:components.queryItems];
    [tmpQueryItems enumerateObjectsUsingBlock:^(NSURLQueryItem *obj, NSUInteger idx, BOOL * _Nonnull stop) {
        if ([obj.name isEqualToString:key]) {
            NSURLQueryItem  *tmpQueryItem = [[NSURLQueryItem alloc] initWithName:key value:value];
            [tmpQueryItems replaceObjectAtIndex:idx withObject:tmpQueryItem];
        }
    }];
    components.queryItems = tmpQueryItems;
    return components.string;
}

///这里返回的URL就是替换过的URL

object-c 方法

- (NSString *)updateUrl:(NSString *)url
                    key:(NSString *)key
                  value:(NSString *)value
{
    NSURLComponents *components = [NSURLComponents componentsWithString:url];
    NSMutableArray *tmpQueryItems = [NSMutableArray arrayWithArray:components.queryItems];
    [tmpQueryItems enumerateObjectsUsingBlock:^(NSURLQueryItem *obj, NSUInteger idx, BOOL * _Nonnull stop) {
        if ([obj.name isEqualToString:key]) {
            NSURLQueryItem  *tmpQueryItem = [[NSURLQueryItem alloc] initWithName:key value:value];
            [tmpQueryItems replaceObjectAtIndex:idx withObject:tmpQueryItem];
        }
    }];
    components.queryItems = tmpQueryItems;
    return components.string;
}