问Youtube API自动完成搜索不起作用

EN

   @property(strong, nonatomic) NSMutableArray *ParsingArray // Put that in .h file or after @interface in your .m file

  -(void)autocompleteSegesstions : (NSString *)searchWish{
//searchWish is the text from your search bar (self.searchBar.text)


NSString *jsonString = [NSString stringWithFormat:@"http://suggestqueries.google.com/complete/search?client=youtube&ds=yt&alt=json&q=%@", searchWish];
    NSString *URLString = [jsonString stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]; // Encoding to identify where, for example, there are spaces in your query.


NSLog(@"%@", URLString);

    NSData *allVideosData = [[NSData alloc]initWithContentsOfURL:[[NSURL alloc]initWithString:URLString]];

NSString *str = [[NSString alloc]initWithData:allVideosData encoding:NSUTF8StringEncoding];
NSLog(@"%@", str); //Now you have NSString contain JSON. 
NSString *json = nil;
NSScanner *scanner = [NSScanner scannerWithString:str];
[scanner scanUpToString:@"[[" intoString:NULL]; // Scan to where the JSON begins
[scanner scanUpToString:@"]]" intoString:&json];
//The idea is to identify where the "real" JSON begins and ends.
json = [NSString stringWithFormat:@"%@%@", json, @"]]"];
NSLog(@"json = %@", json);


NSArray *jsonObject = [NSJSONSerialization JSONObjectWithData:[json dataUsingEncoding:NSUTF8StringEncoding] //Push all the JSON autocomplete detail in to jsonObject array.
                                                                                 options:0 error:NULL];
self.ParsingArray = [[NSMutableArray alloc]init]; //array that contains the objects.
for (int i=0; i != [jsonObject count]; i++) {
    for (int j=0; j != 1; j++) {
        NSLog(@"%@", [[jsonObject objectAtIndex:i] objectAtIndex:j]);
        [self.ParsingArray addObject:[[jsonObject objectAtIndex:i] objectAtIndex:j]];
        //Parse the JSON here...

    }

}}