I have dictionary which i want to use to fill a tableview. It is parsed by JSON.
My dictionary looks like that:
NSLog(#"%#",temp);
// OUTPUT //
(
{
ShootingDate = "2013-07-29 00:00:00";
ShootingID = 1;
ShootingName = Testshooting;
},
{
ShootingDate = "2013-06-12 00:00:00";
ShootingID = 2;
ShootingName = Architektur;
}
)
Dictionary looks in XCode like that:
Now i want to fill a table with that data. Each row should display ShootingDate,ShootingID and ShootingName but i am not able to access these keys.
Anyone a suggestion?
First of all temp is not dictionary it is NSArray and u can get it as
for (NSDictionary *dictionary in temp) {
[dictionary valueForKey:#"ShootingDate"];
[dictionary valueForKey:#"ShootingID"];
[dictionary valueForKey:#"ShootingName"];
}
You can get your dictionary in cellforRow as
NSDictionary *tempDicts=[temp objectAtIndex:indexPath.row];
cell.textLabel.text=[NSString stringWithFormat:#"id=%#,date=%#,name=%#",[tempDicts valueForKey:#"ShootingID"],[tempDicts valueForKey:#"ShootingDate"],[tempDicts valueForKey:#"ShootingName"]];
you can access these keys as
NSString *str_ShootingDate = [[temp objectAtIndex:indexpath.row]
objectForKey:#"ShootingDate"]; //you can change this key with ShootingID
//or ShootingName
Related
In my project I am getting response from the server in the form
response:
<JKArray 0x7fa2e09036b0>(
{
id = 23;
name = "Name1";
},
{
id = 24;
name = "Name2";
}
)
From this response array i am retrieving the objects at different indexes and then adding them in a mutableArray and then into a contactsDictionary.
self.contactsDictionary = [[NSMutableDictionary alloc] init];
for(int i=0 ; i < [response count] ; i++)
{
NSMutableArray *mutableArray=[[NSMutableArray alloc] init];
[mutableArray addObject:[response objectAtIndex:i]];
[self.contactsDictionary setObject:mutableArray forKey:[NSString stringWithFormat:#"%i",i]];
}
I want to retrieve data for Key #"name" from the contactsDictionary at some other location in the project. So how to do it.
Thanks in advance....
this is the wrong way like you are setting your contactsDictionary.
replace below line
[self.contactsDictionary setObject:mutableArray forKey:[NSString stringWithFormat:#"%i",i]];
with
[self.contactsDictionary setObject:[mutableArray objectAtIndex :i] forKey:[NSString stringWithFormat:#"%i",i]];
becuase everytime your array have new objects so your contacts dictionary's first value have one object then second value have two object. so you shouldn't do that.
now, if you want to retrieve name then call like
NSString *name = [[self.contactsDictionary objectForKey : #"1"]valueForKey : #"name"];
avoid syntax mistake if any because have typed ans here.
Update as per comment:
just take one mutablearray for exa,
NSMutableArray *arr = [[NSMutableArray alloc]init];
[arr addObject : name]; //add name string like this
hope this will help :)
Aloha from your respond I can give you answer Belo like that according to you response.
for(int i=0;i<[arrRes count];i++);
{
NSString *strId = [NSString stringWithFormat:#"%#",[[arrRes obectAtIndex:i]objectForKey:#"id"]];
NSString *StrName = [NSString stringWithFormat:#"%#",[[arrRes objectAtIndex:i]objectForKey:#"name"]];
NSLog(#"The ID is -%#",strId);
NSLog(#"The NAME is - %#",strName);
}
I'm trying to parse a JSON page in Objective-C by creating a subclass of NSDictionary and adding getSomeProperty methods. I have been able to do this with JSON pages that precede every [ or { with keys but am having trouble parsing the following sort of page
[ {"id":12345,"name":"name1","account_id":10002000015631,
"start_at":"2015-09-02T20:24:13","enrollments":
[{"type":"student","role":"enrollment","role_id":821,
"user_id":10000001736511,"enrollment_state":"active"}],"hide_final_grades":false,
"workflow_state":"available","restrict_enrollments_to_course_dates":false},
{"id":100000055661076,"name":"name2","account_id":100000230095635,
"start_at":"2015-08-28T21:22:41Z","grading_standard_id":null,"is_public":null,
"course_code":"name2","default_view":"wiki","enrollment_term_id":10003000007529,"end_at":null,
"public_syllabus":false,"storage_quota_mb":500,"is_public_to_auth_users":false,
"apply_assignment_group_weights":false,"calendar":{"ics":"https://someurl.ics"},
"enrollments":[{"type":"student","role":"StudentEnrollment","role_id":821,
"user_id":10000001736511,"enrollment_state":"active"}],"hide_final_grades":false,"
workflow_state":"available","restrict_enrollments_to_course_dates":false}
]
For example, for this webpage http://www.raywenderlich.com/demos/weather_sample/weather.php?format=json
I am able to create methods
- (NSDictionary *)currentCondition
{
NSDictionary *dict = self[#"data"];
NSArray *ar = dict[#"current_condition"];
return ar[0];
}
and
-(NSString*) cloudcover
{
return self[#"cloudcover"];
}
to retrieve the string #"16".
How can I use a similar method to get the #"name1" or the id #"12345" from my first example JSON code?
You have an array of dictionaries. To have an array of outputs you can use the following method:
- (NSMutableArray *)getValueString: (NSString*)string fromArray: (NSArray *)inputArray {
NSString *outputString;
NSMutableArray *outputArray = [NSMutableArray new];
for (id dict in inputArray) {
if ([[dict class] isSubclassOfClass:[NSDictionary class]]) {
outputString = [dict valueForKey: string];
}
else {
outputString = #"Name not found";
}
if (!(outputString.length > 0)) {
outputString = #"Name not found";
}
[outputArray addObject: outputString];
}
return outputArray;
}
And use it to get name with:
NSArray *resultArray = [self getValueString: #"name" fromArray: inputArray];
NSString *firstName = resultArray[0];
And to get id with:
NSArray *resultArray = [self getValueString: #"id" fromArray: inputArray];
NSString *firstId = resultArray[0];
The [ ] at the beginning and end of your JSON string indicate that it is an array, so when you parse the JSON, you will get an NSArray*, not an NSDictionary*. The first element of the array is an object, so that will be an NSDictionary*. Access id like this:
NSNumber* id = self[0][#"id"];
It looks like your currentCondition is a category on NSDictionary. If that's true and you want the above code to work, you need to make it on a category of NSArray. If it's not true, I don't understand what self is without more info.
Hi I have NSarray values in Xcode. I need to get array indexOfObject by comparing string values.
my array values are
(
{
firstName = lord;
lastname = krishna;
},
{
firstName = priya;
lastname = amirtha;
}
)
If I type first name in textfield and click button means last name want to display in another textfield.
thank you.
To answer the title of your question:
NSString *compareString = #"something";
NSMutableArray *indexesOfMatches = [[NSMutableArray alloc]init];
for (NSString *string in theArray) {
if ([string isEqualToString:compareString]) {
NSNumber *index = [[NSNumber numberWithInterger:[theArray indexOfObject:string]];
[indexOfMatches addObject:index];
}
}
//indexOfMatches will now contain NSNumber objects that represent the indexes of each of the matching string objects in the array
I think that using an NSDictionary would be better for you though. Then you can simply keep the first and last names as Key Value pairs.
NSDictionary *names = #{#"lord" : #"krishna", #"priya" : #"amirtha" };
Then you can just do value for key when you get the first name:
NSString *firstName = #"lord";
NSString *lastName = [names valueForKey:firstName];
Store firstNameArray and lastNameArray a mutable array NSMutableArray.
Using Fast Enumeration. Suppose array is the array you are provided with
for (NSDictionary *item in array) {
[firstNameArray addObject:[item objectForKey:#"firstName"]];
[lastNameArray addObject:[item objectForKey:#"lastName"]];
}
After entering the data in firstNameTextField click the button
Button action method implementation
-(IBAction)btnClicked:(id)sender {
NSInteger index = [firstName indexOfObject:[firstNameTextField text]];
[lastNameTextField setText:[lastName objectAtIndex:index]];
}
I want to give a key value from my NSDictionary and get the value associated to it.
I have this:
NSArray *plistContent = [NSArray arrayWithContentsOfURL:file];
NSLog(#"array::%#", plistContent);
dict = [plistContent objectAtIndex:indexPath.row];
cell.textLabel.text = [dict objectForKey:#"code"];
with plistContent :
(
{
code = world;
key = hello;
},
{
code = 456;
key = 123;
},
{
code = 1;
key = yes;
}
)
So how do I get "hello" by giving the dictionary "world"?
If I understand your question correctly, you want to locate the dictionary where "code" = "world" in order to get the value for "key".
If you want to keep the data structure as it is, then you will have to perform a sequential search, and one way to do that is simply:
NSString *keyValue = nil;
NSString *searchCode = #"world";
for (NSDictionary *dict in plistContents) {
if ([[dict objectForKey:#"code"] isEqualToString:searchCode]) {
keyValue = [dict objectForKey:#"key"]); // found it!
break;
}
}
However if you do alot of this searching then you are better off re-organizing the data structure so that it's a dictionary of dictionaries, keyed on the "code" value, converting it like this:
NSMutableDictionary *dictOfDicts = [[NSMutableDictionary alloc] init];
for (NSDictionary *dict in plistContents) {
[dictOfDicts setObject:dict
forKey:[dict objectForKey:#"code"]];
}
(note that code will break if one of the dictionaries doesn't contain the "code" entry).
And then look-up is as simple as:
NSDictionary *dict = [dictOfDicts objectForKey:#"world"]);
This will be "dead quick".
- (NSString*) findValueByCode:(NSString*) code inArray:(NSArray*) arr
{
for(NSDictonary* dict in arr)
{
if([[dict valueForKey:#"code"] isEqualToString:code])
{
return [dict valueForKey:#"key"]
}
}
return nil;
}
I was wondering if anyone could lend some assistance. Basically I am calling a web service and then trying to get the large hosted image url. The output from the web service is so:
images = (
{
hostedLargeUrl = "http://i.yummly.com/Crispy-roasted-chickpeas-_garbanzo-beans_-308444.l.jpg";
hostedSmallUrl = "http://i.yummly.com/Crispy-roasted-chickpeas-_garbanzo-beans_-308444.s.jpg";
}
);
The main problem is that the two strings are in only one of my array elements when I think they should be in 2. Also I'm not 100% but possibly they may be a dictionary :-S I'm just not sure. My code is as follows:
NSArray *imageArray = [[NSArray alloc]init];
imageArray = [self.detailedSearchYummlyRecipeResults objectForKey:#"images"];
NSLog(#"imageArray: %#", imageArray);
NSLog(#"count imageArray: %lu", (unsigned long)[imageArray count]);
NSString *hostedLargeurlString = [imageArray objectAtIndex:0];
NSLog(#"imageArrayString: %#", hostedLargeurlString);
The output (nslog's) from the above code is:
2013-04-28 18:59:52.265 CustomTableView[2635:11303] imageArray: (
{
hostedLargeUrl = "http://i.yummly.com/Crispy-roasted-chickpeas-_garbanzo-beans_-308444.l.jpg";
hostedSmallUrl = "http://i.yummly.com/Crispy-roasted-chickpeas-_garbanzo-beans_-308444.s.jpg";
}
)
2013-04-28 18:59:52.266 CustomTableView[2635:11303] count imageArray: 1
2013-04-28 18:59:52.266 CustomTableView[2635:11303] imageArrayString: {
hostedLargeUrl = "http://i.yummly.com/Crispy-roasted-chickpeas-_garbanzo-beans_-308444.l.jpg";
hostedSmallUrl = "http://i.yummly.com/Crispy-roasted-chickpeas-_garbanzo-beans_-308444.s.jpg";
}
Does anyone have any idea how I can seperate the one element into hostedlargeUrl and hostedsmallUrl respectively?
Any help you can provide is greatly appreciated!
Actually the images array contains a dictionary
images = (
{
hostedLargeUrl = "http://i.yummly.com/Crispy-roasted-chickpeas-_garbanzo-beans_-308444.l.jpg";
hostedSmallUrl = "http://i.yummly.com/Crispy-roasted-chickpeas-_garbanzo-beans_-308444.s.jpg";
}
);
so :
NSDictionary *d = [self.detailedSearchYummlyRecipeResults objectForKey:#"images"][0];
NSString *largeURL = d[#"hostedLargeUrl"];
NSString *smallURL = d[#"hostedSmallUrl"];
The value of [imageArray objectAtIndex:0] is a NSDictionary. You've incorrectly specified it as a NSString. You need the following:
NSDictionary *hostedLarguerDictionary =
(NSDictionary *) [imageArray objectAtIndex:0];
and then to access the 'large url' use:
hostedLarguerDictionary[#"hostedLargeUrl"]
or, equivalently
[hostedLarguerDictionary objectForKey: #"hostedLargeUrl"];
looks like an array with in an array so
NSArray* links = [self.detailedSearchYummlyRecipeResults objectForKey:#"images"];
NSString* bigLink = [links objectAtIndex:0];
NSString* smallLink = [links objectAtIndex:1];
or it could be a dictionary
NSDictionary* links = [self.detailedSearchYummlyRecipeResults objectForKey:#"images"];
NSString* bigLink = [links objectForKey:#"hostedLargeUrl "];
NSString* smallLink = [links objectForKey:#"hostedSmallUrl "];
you can see the class of the object by printing out the class name
NSLog(#"Class Type: %#", [[self.detailedSearchYummlyRecipeResults objectForKey:#"images"] class]);