CellTableView With Twitter API won't Display Data - ios

Question

I'm currently doing a practice for twitter API. Currently, i had a problem to populate a search hashtag results to tableview cellForRowAtIndexPath method. Below is my code.
My Header Code :
#interface TableViewController : UITableViewController<UITableViewDataSource,UITableViewDelegate> #property (nonatomic,strong) NSArray *array; #end
My Implementation Code :
#import "TableViewController.h"
#import <Social/Social.h>
#import <Accounts/Accounts.h>
#interface TableViewController ()
#end
#implementation TableViewController
- (void)viewDidLoad
{
[super viewDidLoad];
[self getDataFromTwitter];
}
#pragma mark - Table view data source
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
// Return the number of sections.
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
// Return the number of rows in the section.
return self.array.count;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath];
// Configure the cell...
NSDictionary *dataDictionary = [self.array objectAtIndex:indexPath.row];
// NSLog(#"data result: %#", self.array);
cell.textLabel.text = dataDictionary[#"text"];
return cell;
}
- (void)getDataFromTwitter {
// 1. set an URL
NSURL *url = [NSURL URLWithString:#"https://api.twitter.com/1.1/search/tweets.json"];
// 2. set NSMutableArray For Parameter
NSMutableDictionary *parameter = [[NSMutableDictionary alloc] init];
[parameter setObject:#"%23MH370" forKey:#"q"];
[parameter setObject:#"10" forKey:#"text"];
[parameter setObject:#"popular" forKey:#"result_type"];
//3. set ACAccountStore & ACAccountType
ACAccountStore *accountStore = [[ACAccountStore alloc] init];
ACAccountType *accountType = [accountStore accountTypeWithAccountTypeIdentifier:ACAccountTypeIdentifierTwitter];
[accountStore requestAccessToAccountsWithType:accountType options:nil completion:^(BOOL granted, NSError *error) {
if (granted == YES) {
NSArray *accountArray = [accountStore accountsWithAccountType:accountType];
if ([accountArray count] > 0) {
ACAccount *twitterAccount = [accountArray lastObject];
// guna slrequest to get data from twitter
SLRequest *getRequest = [SLRequest requestForServiceType:SLServiceTypeTwitter requestMethod:SLRequestMethodGET URL:url parameters:parameter];
// set twitter account
[getRequest setAccount:twitterAccount];
[getRequest performRequestWithHandler:^(NSData *responseData, NSHTTPURLResponse *urlResponse, NSError *error) {
NSString *output = [NSString stringWithFormat:#"HTTP response status : %i", [urlResponse statusCode]];
NSLog(#"Output : %#", output);
self.array = [NSJSONSerialization JSONObjectWithData:responseData options:NSJSONReadingMutableLeaves error:&error];
if (self.array.count != 0) {
dispatch_async(dispatch_get_main_queue(), ^{
[self.tableView reloadData];
NSLog(#"search result: %#", self.array);
});
}
}];
}
}
}];
}
#end
I got a problem now when i always got a crash when i'm running the app and here is result from my console.
2014-03-12 19:57:11.990 twitterSearch[3069:a0b] -[__NSCFDictionary objectAtIndexedSubscript:]: unrecognized selector sent to instance 0xa45fd00
2014-03-12 19:57:11.992 twitterSearch[3069:a0b] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFDictionary objectAtIndexedSubscript:]: unrecognized selector sent to instance 0xa45fd00'

Answer 1

This error means that you are dealing with a NSArray as NSDictionary, most likely you are getting dictionary here not array:
self.array = [NSJSONSerialization JSONObjectWithData:responseData options:NSJSONReadingMutableLeaves error:&error];