How can I get single video information using gdata from youtube.
I know I can get a playlist using this code:
However the code does not work to get a single video's data
NSURL *blogURL = [NSURL URLWithString:#"https://gdata.youtube.com/feeds/api/playlists/PL85E8F3CC22BCEDC6?v=2&alt=jsonc"];
NSData *jsonData = [NSData dataWithContentsOfURL:blogURL];
NSError *error = nil;
NSDictionary *dataDictionary = [NSJSONSerialization JSONObjectWithData:jsonData options:0 error:&error];
NSDictionary *data1 = [dataDictionary objectForKey:#"data"];
NSDictionary *item = [data1 objectForKey:#"items"];
for (NSDictionary *video in item) {
NSDictionary *title = [video objectForKey:#"video"];
NSArray *titleArray = [title objectForKey:#"title"];
NSLog(#"%#",titleArray);
NSString*t = [title objectForKey:#"title"];
NSLog(#"Title:%#", t);
...
}
But I do not know how to get a single video.
Any help will be appreciated...
Thanks...
To get the feed for a single video with v2, you'd replace the URL in the first line with something like this:
https://gdata.youtube.com/feeds/api/videos/tge2BfiIXiE?v=2&alt=jsonc
Where you change the videoID as necessary.
The JSON that is returned with this feed is slightly different, naturally; so rather than creating an NSDictionary object for the items list and then looping over it, you would just do something like this:
NSURL *feedURL = [NSURL URLWithString:#"https://gdata.youtube.com/feeds/api/videos/tge2BfiIXiE?v=2&alt=jsonc"];
NSData *jsonData = [NSData dataWithContentsOfURL:feedURL];
NSError *error = nil;
NSDictionary *dataDictionary = [NSJSONSerialization JSONObjectWithData:jsonData options:0 error:&error];
NSDictionary *data1 = [dataDictionary objectForKey:#"data"];
NSString *t = [data1 objectForKey:#"title"];
NSLog(#"Title:%#", t);
NSDictionary *thumbs = [data1 objectForKey:#"thumbnail"];
NSURL *standardThumb = [thumbs objectForKey:#"sqDefault"];
NSURL *hdThumb = [thumbs objectForKey:#"hqDefault"];
code edited to reflect question in comment
Related
Im having hard time while trying to parse the following json array. How to parse it. The other answers in web doesn't seem to solve my problem.
{
"status": 1,
"value": {
"details": [
{
"shipment_ref_no": "32",
"point_of_contact": {
"empid": ""
},
"products": {
"0": " Pizza"
},"status": "2"
},
{
"shipment_ref_no": "VAPL/EXP/46/14-15",
"point_of_contact": {
"empid": "60162000009888"
},
"products": {
"0": "MAIZE/CORN STARCH"
},
"status": "5"
}
]
}
}
I have to access the values of each of those keys.
Following is my code
NSString* pendingResponse = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
NSData *jsonData = [pendingResponse dataUsingEncoding:NSUTF8StringEncoding];
NSDictionary *jsonDic = [NSJSONSerialization JSONObjectWithData:jsonData options:NSJSONReadingAllowFragments error:nil];
NSArray *argsArray = [[NSArray alloc] initWithArray:[jsonDic objectForKey:#"details"]];
NSDictionary *argsDict = [[NSDictionary alloc] initWithDictionary:[argsArray objectAtIndex:0]];
NSLog(#"keys = %#", jsonDic[#"values"]);
This is how you can parse your whole dictionary:
NSDictionary *dataDictionary = [NSJSONSerialization JSONObjectWithData:data options:0 error:nil];
NSArray *details = [[dataDictionary objectForKey:#"value"] objectForKey:#"details"];
for (NSDictionary *dic in details) {
NSString *shipmentRefNo = dic[#"shipment_ref_no"];
NSDictionary *pointOfContact = dic[#"point_of_contact"];
NSString *empId = pointOfContact[#"empid"];
NSDictionary *products = dic[#"products"];
NSString *zero = products[#"0"];
NSString *status = dic[#"status"];
}
NSString *pendingResponse = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
NSData *jsonData = [pendingResponse dataUsingEncoding:NSUTF8StringEncoding];
NSDictionary *jsonDic = [NSJSONSerialization JSONObjectWithData:jsonData options:NSJSONReadingAllowFragments error:nil];
NSArray *argsArray = [[NSArray alloc] initWithArray:[jsonDic objectForKey:#"details"]];
//argsArray holds objects in form of NSDictionary.
for(NSDictionary *response in argsArray) {
//String object
NSLog(#"%#", [response valueForKey:#"shipment_ref_no"]);
//Dictionary object
NSLog(#"%#", [[response objectForKey:#"point_of_contact"] valueForKey:#"empid"]);
//String object
NSLog(#"%#", [response valueForKey:#"status"]);
//Dictionary object
NSLog(#"%#", [[response objectForKey:#"products"] valueForKey:#"0"]);
}
I believe you should surely ask your server developer to update the response format.
Also, you can always use Model classes to parse your data. Please check this, How to convert NSDictionary to custom object.
And yes, I'm using this site to check my json response.
EDIT: Following answer is in javascript!
You can parse your json data with:
var array = JSON.parse(data);
and then you can get everything like this:
var refno = array["value"]["details"][0]["shipment_ref_no"];
you can parse like ...
NSDictionary *jsonDic = [NSJSONSerialization JSONObjectWithData:jsonData options:NSJSONReadingAllowFragments error:nil];
NSDictionary *dictValue = [[NSDictionary alloc] initWithDictionary:[jsonDic objectForKey:#"value"]];
NSArray *arrDetails = [[NSArray alloc] initWithArray:[dictValue objectForKey:#"details"]];
for (int i=0; i<arrDetails.count; i++)
{
NSDictionary *dictDetails=[arrDetails objectAtIndex:i];
NSDictionary *dictContact = [[NSDictionary alloc] initWithDictionary:[dictDetails objectForKey:#"point_of_contact"]];
NSDictionary *dictProduct = [[NSDictionary alloc] initWithDictionary:[dictDetails objectForKey:#"products"]];
}
NSDictionary *response = //Your json
NSArray *details = response[#"value"][#"details"]
etc. Pretty easy
Update your code as follows. You are trying to read the details array from the top level whereas in your data its inside the value key. So you should read the value dict and within that read the details array.
NSString* pendingResponse = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
NSData *jsonData = [pendingResponse dataUsingEncoding:NSUTF8StringEncoding];
NSDictionary *jsonDic = [NSJSONSerialization JSONObjectWithData:jsonData options:NSJSONReadingAllowFragments error:nil];
NSDictionary *valueDict = [jsonDic objectForKey:#"value"];
NSArray *argsArray = [[NSArray alloc] initWithArray:[valueDict objectForKey:#"details"]];
NSDictionary *argsDict = [[NSDictionary alloc] initWithDictionary:[argsArray objectAtIndex:0]];
NSLog(#"keys = %#", jsonDic[#"values"]);
I think your problem is that you have:
NSLog(#"keys = %#", jsonDic[#"values"]);
But it should be:
NSLog(#"keys = %#", jsonDic[#"value"]);
Below is code for parsing JSON array. i have used to parse JSON array from file but you can also do this using response link also.I have provided code for both and are below.
// using file
NSString *str = [[NSBundle mainBundle] pathForResource:#"test" ofType:#"json"];
NSData *data = [[NSData alloc]initWithContentsOfFile:str];
NSMutableDictionary *dict = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:nil];
NSMutableDictionary *dictValues = [[NSMutableDictionary alloc]initWithDictionary:[dict valueForKey:#"value"]];
NSMutableArray *array = [[NSMutableArray alloc]initWithArray:[dictValues valueForKey:#"details"] copyItems:YES];
NSLog(#"Array Details :- %#",array);
// using url
NSURL *url = [NSURL URLWithString:#"www.xyz.com"]; // your url
NSData *data = [[NSData alloc]initWithContentsOfURL:url];
NSMutableDictionary *dict = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:nil];
NSMutableDictionary *dictValues = [[NSMutableDictionary alloc]initWithDictionary:[dict valueForKey:#"value"]];
NSMutableArray *array = [[NSMutableArray alloc]initWithArray:[dictValues valueForKey:#"details"] copyItems:YES];
NSLog(#"Array Details :- %#",array);
This question already has an answer here:
Parsing JSON response .
(1 answer)
Closed 8 years ago.
Hai I need to get the id & status from the service for login my code is below. please guide me to get the values.. Thanks in advance..
NSString *Username= txtUsername.text;
NSString *Password=txtPassword.text;
NSString *link = [NSString stringWithFormat:#"http://www.xxx/login.php?user=%#&pass=%#&format=json",Username,Password];
NSURL *url=[NSURL URLWithString:link];
NSData *data=[NSData dataWithContentsOfURL:url];
1st Do the jSon parsing and then get the particular value from the
key .
Before getting any value , we have to understand the tree of jSon.
Here "posts" is an NSArray ,within that one DIctionary "post" is
there ,which again contains another dictionary.
Below is the complete code.
(void)viewDidLoad
{
[super viewDidLoad];
NSString *Username= txtUsername.text;
NSString *Password=txtPassword.text;
NSString *link =
[NSString stringWithFormat:#"http://www.some.com/webservice/login.php?user=%#&pass=%#&format=json",Username,Password];
dispatch_async(kBgQueue, ^{
NSData* data = [NSData dataWithContentsOfURL:
kLatestKivaLoansURL];
[self performSelectorOnMainThread:#selector(fetchedData:)
withObject:data waitUntilDone:YES];
}); }
Then call that selector fetchedData
(void)fetchedData:(NSData *)responseData {
//parse out the json data
NSError* error;
NSDictionary* json = [NSJSONSerialization JSONObjectWithData:responseData
options:kNilOptions
error:&error];
if(!error){
NSArray* postArray = [json objectForKey:#“posts”]; //This is an array
if (postArray.count>0) {
NSDictionary *dict = [[postArray objectAtIndex:0] objectForKey:#"post" ];
NSString *id_ = [dict objectForKey:#"id"];
NSString *status_ = [dict objectForKey:#"status"];
}
}
}
Can you post your json string. You can use NSJSONSERIALISATION to convert data (json string ) into NSDictionary. Then use the keys to extract the values. I'm replying through mobile so I can't write the actual code.
Use Below code to parse Json in IOS
NSString *Username= txtUsername.text;
NSString *Password=txtPassword.text;
NSString *link = [NSString stringWithFormat:#"http://www.some.com/_webservice/login.php?user=%#&pass=%#&format=json",Username,Password];
NSURL *url=[NSURL URLWithString:link];
NSMutableURLRequest *req1 = [NSMutableURLRequest requestWithURL:url];
NSURLResponse *response;
NSError *error;
//getting the data
NSData *newData = [NSURLConnection sendSynchronousRequest:req1 returningResponse:&response error:&error];
NSString *responseString = [[NSString alloc] initWithData:newData encoding:NSUTF8StringEncoding];
NSLog(#"basavaraj \n\n\n %# \n\n\n",responseString);
NSData* data = [responseString dataUsingEncoding:NSUTF8StringEncoding];
NSError *myError = nil;
NSDictionary *res = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableLeaves error:&myError];
NSString *id=[res objectForKey:#"ID"];
NSString *status=[res objectForKey:#"Status"];
and if u need extra info please go through below link it may help you
Click here for more details
Here's an example of my data:
[
{
code: "DRK",
exchange: "BTC",
last_price: "0.01790000",
yesterday_price: "0.01625007",
top_bid: "0.01790000",
top_ask: "0.01833999"
}
]
I'm trying to retrieve the value for last_price by loading the contents of my NSDictionary into an Array.
NSURL *darkURL = [NSURL URLWithString:#"https://api.mintpal.com/v1/market/stats/DRK/BTC"];
NSData *darkData = [NSData dataWithContentsOfURL:darkURL];
NSError *error = nil;
NSDictionary *darkDict = [NSJSONSerialization JSONObjectWithData:darkData options:0 error:&error];
self.darkPosts = [NSMutableArray array];
NSArray *darkPostArray = [darkDict objectForKey:#""];
for (NSDictionary *darkDict in darkPostArray) {...
But my json doesn't have a root element, so what do I do?
Additionally, when using the suggested answer, the output is ("...
- (void)viewDidLoad{
[super viewDidLoad];
NSURL *darkURL = [NSURL URLWithString:#"https://api.mintpal.com/v1/market/stats/DRK/BTC"];
NSData *darkData = [NSData dataWithContentsOfURL:darkURL];
NSError *error = nil;
NSDictionary *darkDict = [NSJSONSerialization JSONObjectWithData:darkData options:0 error:&error];
NSString *lastP = [darkDict valueForKey:#"last_price"];
self.dark_label.text = [NSString stringWithFormat: #"%#", lastP];
}
It looks like you are wanting to iterate over your results. The root element is an array not a dictionary so you can just start iterating
NSError *error = nil;
NSArray *items = [NSJSONSerialization JSONObjectWithData:darkData
options:kNilOptions
error:&error];
if (!items) {
NSLog(#"JSONSerialization error %#", error.localizedDescription);
}
for (NSDictionary *item in items) {
NSLog(#"last_price => %#", item[#"last_price"]);
}
If you literally just want to collect an array of the last_price's then you can so this
NSArray *lastPrices = [items valueForKey:#"last_price"];
Convert the JSON to an NSArray with NSJSONSerialization. Then access the value:
NSData *darkData = [#"[{\"code\":\"DRK\",\"exchange\": \"BTC\",\"last_price\": \"0.01790000\",\"yesterday_price\": \"0.01625007\",\"top_bid\": \"0.01790000\"}, {\"top_ask\": \"0.01833999\"}]" dataUsingEncoding:NSUTF8StringEncoding];
NSArray *array = [NSJSONSerialization JSONObjectWithData:darkData
options:0
error:&error];
NSString *value = array[0][#"last_price"];
NSLog(#"value: %#", value);
NSLog output:
value: 0.01790000
If you are having trouble post the code you have written to get some help.
-- updated for new OP code:
The web service returns a JSON array or dictionaries not a JSON dictionary. First you have to index into the array and then index into the dictionary.
NSURL *darkURL = [NSURL URLWithString:#"https://api.mintpal.com/v1/market/stats/DRK/BTC"];
NSData *darkData = [NSData dataWithContentsOfURL:darkURL];
NSError *error = nil;
NSArray *darkArray = [NSJSONSerialization JSONObjectWithData:darkData options:0 error:&error];
NSDictionary *darkDict = darkArray[0];
NSString *lastP = [darkDict valueForKey:#"last_price"];
NSLog(#"lastP: %#", lastP);
NSLog output:
lastP: 0.01970000
Note that the two lines:
NSDictionary *darkDict = darkArray[0];
NSString *lastP = [darkDict valueForKey:#"last_price"];
can be replaced with the single line using array indexing:
NSString *lastP = darkArray[0][#"last_price"];
Where the "[0]" gets the first array element which is a NSDictionary and the "[#"last_price"]" gets the names item from the dictionary.
- (void)viewDidLoad
{
[super viewDidLoad];
NSURL *url = [NSURL URLWithString:#"http://www.xovak.com/json_logo.php"];
NSData *data = [NSData dataWithContentsOfURL:url];
NSError *error;
NSMutableDictionary *json = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:&error];
NSDictionary *Logos = [[[json valueForKey:#"logos"]objectAtIndex:0]mutableCopy];
NSMutableArray *img = [[NSMutableArray alloc]init];
for (id item in Logos) {
[img addObject:[Logos objectForKey:#"image_file"]];
NSLog(#"%#",img);
}
}
Are you sure Logos shouldn't be a NSArray? At least, that's what it looks like from your JSON object.
Do this instead:
NSURL *url = [NSURL URLWithString:#"http://www.xovak.com/json_logo.php"];
NSData *data = [NSData dataWithContentsOfURL:url];
NSError *error;
NSMutableDictionary *json = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:&error];
NSArray *Logos = [[json valueForKey:#"logos"] mutableCopy];
NSMutableArray *img = [[NSMutableArray alloc]init];
for (NSDictionary *item in Logos) {
[img addObject:[item objectForKey:#"image_file"]];
NSLog(#"%#",img);
}
Another way of getting all imagFile From JSON Response. Please Check it.
NSURL *url = [NSURL URLWithString:#"http://www.xovak.com/json_logo.php"];
NSData *data = [NSData dataWithContentsOfURL:url];
NSError *error;
NSMutableDictionary *json = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:&error];
NSMutableArray *img = [[NSMutableArray alloc]init];
NSArray *listOfURL = [[NSArray alloc] init];
NSArray *websiteDetails = (NSArray *) [json objectForKey:#"logos"];
for(int count=0; count<[websiteDetails count]; count++)
{
NSDictionary *websiteInfo = (NSDictionary *) [websiteDetails objectAtIndex:count];
NSString *imagefile = (NSString *) [websiteInfo objectForKey:#"image_file"];
if([imagefile length]>0)
{
NSLog(#"Imagefile URL is: %#",imagefile);
[img addObject:imagefile];
}
}
listOfURL = img;
---------// Add This Method in TableView Cell For Row at IndexPath Method//-----------------
// Logic For Downloading Image From URL and Show in TableviewCell
//get a dispatch queue
dispatch_queue_t concurrentQueue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
//this will start the image loading in bg
dispatch_async(concurrentQueue, ^{
NSURL *url = [NSURL URLWithString:[listOfURL objectAtIndex:indexPath.row]];
NSData *image = [[NSData alloc] initWithContentsOfURL:url];
//this will set the image when loading is finished
dispatch_async(dispatch_get_main_queue(), ^{
cell.imageview.image = [UIImage imageWithData:image];
});
});
You're putting only one item in Logos. Plus, it should not be NSMutableDictionary but an NSArray.
On the other hand, the items you're looping on in Logos are actually NSDictionarys.
So, your code should now be:
NSArray *Logos = [json valueForKey:#"logos"];
NSMutableArray *img = [[NSMutableArray alloc]init];
for (NSDictionary *item in Logos) {
[img addObject:[item objectForKey:#"image_file"]];
NSLog(#"%#",img);
}
Replace NSDictionary *Logos = [[[json valueForKey:#"logos"]objectAtIndex:0]mutableCopy]; with NSArray *Logos = [[json valueForKey:#"logos"] mutableCopy]; to get all objects.
I have a problem parsing JSON string in Objective C:
My JSON:
{"messages":[{"nick":"Tim","message":"Hallo","time":"06.07.2012 13:26:41"}]}
My Objective C Code:
NSError *error = nil;
NSData *data = [NSData dataWithContentsOfURL:#"..URL.."];
NSArray *messages = [data objectForKey:#"messages"];
NSDictionary *json = [NSJSONSerialization
JSONObjectWithData:messages
options:NSJSONReadingMutableLeaves
error:&error];
NSString *nick = [json objectForKey:#"nick"];
NSString *message = [json objectForKey:#"message"];
But this doesn´t work and I don´t know what to do!
Your JSON is a dictionary of arrays of dictionaries, i.e. {[{}]}
NSArray *messages = [json objectForKey:#"messages"];
NSString* nick = [[messages objectAtIndex:0]objectForKey:#"nick"]