i'm posting notification in this manner:
...
IVSession *newSession = [[[IVSession alloc] initWithDictionary:propertyDict] autorelease];
NSDictionary *notifParams = [NSDictionary dictionaryWithObject:newSession forKey:#"session"];
NSNotification *newSessionNotif = [NSNotification notificationWithName:IVNewSessionNotificaiton object:self userInfo:notifParams];
...
IVSession interface:
#interface IVSession : IVMappableObject {
NSString *_ssid;
NSNumber *_uid;
}
#property (nonatomic,retain) NSString *sessionID;
#property (nonatomic,retain) NSNumber *userID;
and init method:
- (id)initWithDictionary:(NSDictionary*)dict
{
if ((self = [super init]))
{
NSDictionary *mapping = [self elementToPropertyMappings];
for (NSString *key in mapping)
[self setValue:[dict objectForKey:key] forKey:[mapping objectForKey:key]];
}
return self;
}
but at the method, called for this notification, i'm receiving broken newSession object - its properties ssid and uid are invalid summaries:
-(void)didOpenSession:(NSNotification *)newSession
{
if (receivedSession)
[receivedSession release];
receivedSession = [[newSession userInfo] objectForKey:#"session"];
}
where is my fault?
code looks ok to me... have you verified that the IVSession object contains what you expect it to, after assembling things, but prior to posting the notification?
Related
I have a class that has a NSMutableDictionary as a property:
#interface Alibi : NSObject <NSCopying>
#property (nonatomic, copy) NSMutableDictionary * alibiDetails;
#end
With the following constructor:
- (Alibi *)init
{
self = [super init];
_alibiDetails = [NSMutableDictionary dictionary];
return self;
}
and copy method:
- (Alibi *)copyWithZone:(NSZone *)zone
{
Alibi *theCopy = [[Alibi alloc] init];
theCopy.alibiDetails = [self.alibiDetails mutableCopy];
return theCopy;
}
When I try to call setObject:ForKey: I get a runtime error mutating method sent to immutable object.
I have the Alibi object declared in the view controller as #property (copy, nonatomic) Alibi * theAlibi; and I initialize it with self.theAlibi = [[Alibi alloc] init]; in viewDidLoad.
The line which crashes is:
NSString * recipient;
recipient = #"Boss";
[self.theAlibi.alibiDetails setObject:recipient forKey:#"Recipient"];
Please let me know what I am doing wrong here. I am coding for iOS 5 on iPhone.
You have a 'copy' property, which means exactly that - your NSMutableDictionary will get the -copy method called and return a regular NSDictionary before being assigned to the synthesized instance variable. This thread provides some information on some of your options as to solving this.
For the sake of completing this thread I will include my revised Alibi class below, this works as I require it to. If anyone notices any memory leaks or other issues, that would be appreciated.
#implementation Alibi
NSMutableDictionary *_details;
- (Alibi *)init
{
self = [super init];
_details = [NSMutableDictionary dictionary];
return self;
}
- (NSMutableDictionary *)copyDetails
{
return [_details mutableCopy];
}
- (NSMutableDictionary *)setDetails:(NSMutableDictionary *)value
{
_details = value;
return value;
}
- (void)addDetail:(id)value forKey:(id)key
{
[_details setObject:value forKey:key];
}
- (id)getDetailForKey:(id)key
{
return [_details objectForKey:key];
}
- (Alibi *)copyWithZone:(NSZone *)zone
{
Alibi *theCopy = [[Alibi alloc] init];
theCopy.serverId = [self.serverId copyWithZone:zone];
theCopy.user = [self.user copyWithZone:zone];
theCopy.startTime = [self.startTime copyWithZone:zone];
theCopy.endTime = [self.endTime copyWithZone:zone];
[theCopy setDetails:[self copyDetails]];
return theCopy;
}
#end
I'm having issues placing a custom object (WSWCMPost) into an NSMutableArray and then accessing the data stored in it later. Below is the relevant code.
Here is "WSWCMPost.h"
#import <Foundation/Foundation.h>
#interface WSWCMPost : NSObject
{
NSString *postBody;
NSString *postTitle;
NSString *postID;
}
#property (nonatomic, retain) NSString *postBody, *postTitle, *postID;
- init;
- (id)initWithID: (NSString*)ID AndBody: (NSString*)body AndTitle: (NSString*)title;
- (NSString*)postBody;
- (NSString*)postTitle;
- (NSString*)postID;
Here is "WSWCMPost.m"
#import "WSWCMPost.h"
#implementation WSWCMPost
#synthesize postBody, postTitle, postID;
- (id)init {
self = [super init];
if(self) {
postID = #"none";
postBody = #"none";
postTitle = #"none";
}
}
- (id)initWithID: (NSString*)ID AndBody: (NSString*)body AndTitle: (NSString*)title {
postTitle = title;
postID = ID;
postBody = body;
}
#end
And here is the "viewDidLoad" method that is causing my issues
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
self.detailViewController = (WSWCMDetailViewController *)[[self.splitViewController.viewControllers lastObject] topViewController];
// getting an NSString
NSLog(#"Pulling saved blogs...");
NSUserDefaults *currentDefaults = [NSUserDefaults standardUserDefaults];
NSData *dataRepresentingSavedArray = [currentDefaults objectForKey:#"wswcmt1"];
if (dataRepresentingSavedArray != nil)
{
NSArray *oldSavedArray = [NSKeyedUnarchiver unarchiveObjectWithData:dataRepresentingSavedArray];
if (oldSavedArray != nil)
_objects = [[NSMutableArray alloc] initWithArray:oldSavedArray];
else
_objects = [[NSMutableArray alloc] init];
}
NSLog(#"Pulled saved blogs...");
NSLog(!_objects ? #"Yes" : #"No");
#try {
NSLog(#"_objects description: %#",[_objects description]);
NSLog(#"_objects[0] postID: %#",[[_objects objectAtIndex:0] postID]);
}
#catch (NSException *exception) {
NSLog(#"Caught exception %#", exception);
NSLog(#"Objects doesnt exist, allocating memory...");
_objects = [[NSMutableArray alloc] init];
WSWCMPost *testPost = [[WSWCMPost alloc] initWithID:#"noID" AndBody:#"noBody" AndTitle:#"noTitle"];
[_objects insertObject:testPost atIndex:0];
[[NSUserDefaults standardUserDefaults] setObject:[NSKeyedArchiver archivedDataWithRootObject:_objects] forKey:#"wswcmt1"];
}
if (!_objects ) {
NSLog(#"Objects doesnt exist...");
_objects = [[NSMutableArray alloc] init];
WSWCMPost *testPost = [[WSWCMPost alloc] initWithID:#"dne" AndBody:#"Dne" AndTitle:#"DNe"];
[_objects insertObject:testPost atIndex:0];
[[NSUserDefaults standardUserDefaults] setObject:[NSKeyedArchiver archivedDataWithRootObject:_objects] forKey:#"wswcmt"];
}
[self refreshButton:nil];
}
And finally, here is the output
2012-06-25 22:39:49.345 WSWCM[4406:907] Pulling saved blogs...
2012-06-25 22:39:49.352 WSWCM[4406:907] Pulled saved blogs...
2012-06-25 22:39:49.355 WSWCM[4406:907] Yes
2012-06-25 22:39:49.356 WSWCM[4406:907] _objects description: (null)
2012-06-25 22:39:49.358 WSWCM[4406:907] _objects[0] postID: (null)
2012-06-25 22:39:49.360 WSWCM[4406:907] Objects doesnt exist...
2012-06-25 22:39:49.363 WSWCM[4406:907] Refresh Triggered...
I think that is all of the relevant code. If i forgot anything let me know please. This issue has been bothering me for hours...
While I'm not positive why it's giving you NSStrings instead of just blowing up normally, the problem seems to stem from the fact that your custom class, WSWCMPost, does not conform to the NSCoding protocol. Make sure that your custom objects implement this protocol if you want to store them in NSUserDefaults, since it doesn't know how to serialize the data otherwise.
To be more exact, you'll have to add these methods to your class implementation:
- (id)initWithCoder:(NSCoder *)coder {
self = [self initWithID:[coder decodeObjectForKey:#"id"] AndBody:[coder decodeObjectForKey:#"body"] AndTitle:[coder decodeObjectForKey:#"title"]];
return self;
}
- (void)encodeWithCoder:(NSCoder *)coder {
[encoder encodeObject:postID forKey:#"id"];
[encoder encodeObject:postBody forKey:#"body"];
[encoder encodeObject:postTitle forKey:#"title"];
}
This will allow the data to be serialized by NSCoder. Once you've done this, you should clear all the information currently stored by NSUserDefaults to make sure that it doesn't contain any more NSStrings, but then everything should work properly. Of course, you'll have to update these two methods if you change the data stored by your WSWCMPost object.
Another thing to mention, you're having collisions with your getters/setters and their respective instance variables. So your implementation is:
interface
#interface WSWCMPost : NSObject
{
NSString *postBody; // don't need to do these anymore for properties
NSString *postTitle;
NSString *postID;
}
#property (nonatomic, retain) NSString *postBody, *postTitle, *postID;
implementation
#implementation WSWCMPost
#synthesize postBody, postTitle, postID;
- (id)init {
self = [super init];
if(self) {
postID = #"none"; // not prefixing your variables with 'self' so they are not getting retained
postBody = #"none";
postTitle = #"none";
}
}
#end
Here's how you should be writing those out:
interface
/** NOTE: No need to specify your instance variables here anymore, just the properties */
#interface WSWCMPost : NSObject
#property (nonatomic, retain) NSString *postID;
#property (nonatomic, retain) NSString *postTitle;
#property (nonatomic, retain) NSString *postBody;
implementation
#implementation WSWCMPost
/** Now you specify the corresponding instance variable name alongside the property name */
#synthesize postBody=_postBody, postTitle=_postTitle, postID=_postID;
- (id)init {
self = [super init];
if(self) {
self.postID = #"none"; //getting retained
self.postBody = #"none";
self.postTitle = #"none";
}
}
That would definitely cause data to be released too soon.
So the previous way you could type in self.postID or postID and the compiler wouldn't complain. The difference is when you type postID it is actually setting the member variable and not retaining it... where self.postID will release whatever it is currently set to and retain the new value if it's different.
By declaring your properties the new way, you have to either call the setter as self.postID or set the underlying instance variable as _postID. A lot of early iPhone books had you bang out properties that way and it just ends up causing all sorts of memory issues.
Hope this helps!
UPDATE!!!
You forgot to return self in your constructor ;) I bet that's it
- (id)init {
self = [super init];
if(self) {
self.postID = #"none"; //getting retained
self.postBody = #"none";
self.postTitle = #"none";
}
return self; // THIS IS WHY, you're constructor doesn't return an instance of the class... add this please
}
- (id)initWithID: (NSString*)ID AndBody: (NSString*)body AndTitle: (NSString*)title {
if(( self = [super init] ))
{
self.postTitle = title;
self.postID = ID;
self.postBody = body;
}
return self;
}
Your output definitely shows what was wrong in your code.
2012-06-25 21:51:07.691 WSWCM[4049:907] -[__NSCFString postID]: unrecognized selector sent to instance 0x1d003e80
2012-06-25 21:51:07.696 WSWCM[4049:907] Caught exception -[__NSCFString postID]: unrecognized selector sent to instance 0x1d003e80
These two lines tell you that NSString object does not recognize selector postID. This hint should be enough to find out where you need to see in depth.
See this Storing custom objects in an NSMutableArray in NSUserDefaults for more information.
I am trying to save an object in NSUserDefaults but i have not been successful in it. Scenario is that, I have an object syncObject of class SyncObjct. I have implemented following methods in SyncObject class
- (NSMutableDictionary*)toDictionary;
+ (SyncObject*)getFromDictionary :(NSMutableDictionary*)dictionary;
- (id) initWithCoder: (NSCoder *)coder;
- (void) encodeWithCoder: (NSCoder *)coder;
And also the SyncObject class is NSCoding class. Now SyncObject class contains an NSMutableArray with name jobsArray. This array contains objects of class JobsObject. I implemented same above methods for this class as well to make it coding compliant. In toDictionary method of SyncObject class, i am storing this array in dictionary by writing following line.
[dictionary setValue:jobsArray forKey:#"jobsArray"];
and I am retrieving it in getFromDictionary method of SyncOject class by writing following line.
+ (SyncObject*)getFromDictionary :(NSMutableDictionary*)dictionary
{
NSLog(#"SyncObject:getFromDictionary");
SyncObject *syncObject = [[SyncObject alloc] init];
#try
{
syncObject.noOfJobs = [[dictionary valueForKey:#"noOfJobs"] intValue];
syncObject.totalJobsPerformed = (TotalJobsPerformed*)[dictionary valueForKey:#"totalobsPerformed"];
syncObject.jobsArray = [dictionary valueForKey:#"jobsArray"];
}
#catch (NSException * e)
{
NSLog(#"EXCEPTION %#: %#", [e name], [e reason]);
}
#finally
{
}
return syncObject;
}
And also I am storing syncObject in NSUserDefault by writing following lines.
NSData *myEncodedObject = [NSKeyedArchiver archivedDataWithRootObject:syncObject];
[userStorage setObject:myEncodedObject forKey:SYNC_OBJECT];
I am retrieving the object from NSUserDefaults by writing following lines
NSData *myEncodedObject = [userStorage objectForKey: SYNC_OBJECT];
syncObject = (SyncObject*)[NSKeyedUnarchiver unarchiveObjectWithData: myEncodedObject];
Problem is that i am not able to retrieve jobsArray correctly. Some invalid object is returned and app crashes when trying to access it. Please can anyone tell me the reason of this problem?
Best Regards
I believe the problem is that NSUserDefaults does not support storing of custom object types.
From Apple's documentation when using -setObject: The value parameter can be only property list objects: NSData, NSString, NSNumber, NSDate, NSArray, or NSDictionary. For NSArray and NSDictionary objects, their contents must be property list objects.
You can review the remaining documentation directly from Apple's NSUserDefault Class Reference manual.
Custom class .h
#import <Foundation/Foundation.h>
#interface Person : NSObject
#property(nonatomic, retain) NSArray *names;
#property(strong,nonatomic)NSString *name;
#end
custom class .m
#import "Person.h"
#implementation Person
#synthesize names;
- (void)encodeWithCoder:(NSCoder *)encoder {
[encoder encodeObject:self.name forKey:#"name"];
}
- (id)initWithCoder:(NSCoder *)decoder {
if((self = [super init])) {
//decode properties, other class vars
self.name = [decoder decodeObjectForKey:#"name"];
}
return self;
}
#end
To create Person class object and store and retrieve your stored data from NSUserDefaults
Stored your object :
#import "ViewController.h"
#import "Person.h"
#interface ViewController ()
#property (weak, nonatomic) IBOutlet UITextField *textBox;
#end
NSMutableArray *arr;
#implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (IBAction)saveButton:(id)sender {
Person *person =[Person new];
person.name = _textBox.text;
arr = [[NSMutableArray alloc]init];
[arr addObject:person];
NSData *encodedObject = [NSKeyedArchiver archivedDataWithRootObject:arr];
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
[defaults setObject:encodedObject forKey:#"name"];
[defaults synchronize];
}
- (IBAction)showButton:(id)sender {
_label.text = #"";
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
NSData *storedEncodedObject = [defaults objectForKey:#"name"];
NSArray *arrStoreObject = [NSKeyedUnarchiver unarchiveObjectWithData:storedEncodedObject];
for (int i=0; i<arrStoreObject.count; i++)
{
Person *storedObject = [arrStoreObject objectAtIndex:i];
_label.text = [NSString stringWithFormat:#"%# %#", _label.text , storedObject.name];
}
}
#end
How can I call a method with multiple params like below with performSelectorInBackground?
Sample method:
-(void) reloadPage:(NSInteger)pageIndex firstCase:(BOOL)firstCase;
The problem is that performSelectorInBackground:withObject: takes only one object argument. One way to get around this limitation is to pass a dictionary (or array) of arguments to a "wrapper" method that deconstructs the arguments and calls your actual method:
- (void)callingMethod {
NSDictionary * args = [NSDictionary dictionaryWithObjectsAndKeys:
[NSNumber numberWithInteger:pageIndex], #"pageIndex",
[NSNumber numberWithBool:firstCase], #"firstCase",
nil];
[self performSelectorInBackground:#selector(reloadPageWrapper:)
withObject:args];
}
- (void)reloadPageWrapper:(NSDictionary *)args {
[self reloadPage:[[args objectForKey:#"pageIndex"] integerValue]
firstCase:[[args objectForKey:#"firstCase"] boolValue]];
}
- (void)reloadPage:(NSInteger)pageIndex firstCase:(BOOL)firstCase {
// Your code here...
}
This way you're only passing a "single" argument to the backgrounding call, but that method can construct the multiple arguments you need for the real call (which will take place on the same backgrounded thread).
I've just found this question and wasn't happy with any of the answers. In my opinion neither make good use of the tools available, and passing around arbitrary information in arrays and dictionaries generally worries me.
So, I went and wrote a small NSObject category that will invoke an arbitrary selector with a variable number of arguments:
Category Header
#interface NSObject (NxAdditions)
-(void)performSelectorInBackground:(SEL)selector withObjects:(id)object, ... NS_REQUIRES_NIL_TERMINATION;
#end
Category Implementation
#implementation NSObject (NxAdditions)
-(void)performSelectorInBackground:(SEL)selector withObjects:(id)object, ...
{
NSMethodSignature *signature = [self methodSignatureForSelector:selector];
// Setup the invocation
NSInvocation *invocation = [NSInvocation invocationWithMethodSignature:signature];
invocation.target = self;
invocation.selector = selector;
// Associate the arguments
va_list objects;
va_start(objects, object);
unsigned int objectCounter = 2;
for (id obj = object; obj != nil; obj = va_arg(objects, id))
{
[invocation setArgument:&obj atIndex:objectCounter++];
}
va_end(objects);
// Make sure to invoke on a background queue
NSInvocationOperation *operation = [[NSInvocationOperation alloc] initWithInvocation:invocation];
NSOperationQueue *backgroundQueue = [[NSOperationQueue alloc] init];
[backgroundQueue addOperation:operation];
}
#end
Usage
-(void)backgroundMethodWithAString:(NSString *)someString array:(NSArray *)array andDictionary:(NSDictionary *)dict
{
NSLog(#"String: %#", someString);
NSLog(#"Array: %#", array);
NSLog(#"Dict: %#", dict);
}
-(void)someOtherMethod
{
NSString *str = #"Hello world";
NSArray *arr = #[#(1337), #(42)];
NSDictionary *dict = #{#"site" : #"Stack Overflow",
#"url" : [NSURL URLWithString:#"http://stackoverflow.com"]};
[self performSelectorInBackground:#selector(backgroundMethodWithAString:array:andDictionary:)
withObjects:str, arr, dict, nil];
}
Well, I have used this:
[self performSelectorInBackground:#selector(reloadPage:)
withObject:[NSArray arrayWithObjects:pageIndex,firstCase,nil] ];
for this:
- (void) reloadPage: (NSArray *) args {
NSString *pageIndex = [args objectAtIndex:0];
NSString *firstCase = [args objectAtIndex:1];
}
with performSelectorInBackground you can only pass one argument, so make a custom object for this method to hold your data, itll be more concise than an ambiguous dictionary or array. The benefit of this is you can pass the same object around when done containing several return properties.
#import <Foundation/Foundation.h>
#interface ObjectToPassToMethod : NSObject
#property (nonatomic, strong) NSString *inputValue1;
#property (nonatomic, strong) NSArray *inputArray;
#property (nonatomic) NSInteger returnValue1;
#property (nonatomic) NSInteger returnValue2;
#end
and pass that object to your method:
ObjectToPassToMethod *obj = [[ObjectToPassToMethod alloc] init];
obj.inputArray = #[];
obj.inputValue1 = #"value";
[self performSelectorInBackground:#selector(backgroundMethod:) withObject:obj];
-(void)backgroundMethod:(ObjectToPassToMethod*)obj
{
obj.returnValue1 = 3;
obj.returnValue2 = 90;
}
make sure to clean up the object when done to prevent memory leaks
Alright guys, I'm quite confused. So, I have an NSDictionary which is populated by a JSON string which looks like:
{"Success":true,"Devices":[{"UDId":"...","User":"...","Latitude":0.0,"Longitude":0.0}]}
Now, I know how to check if Success is true, but I need to loop through the array of Devices (JSON object) and create an internal array of Devices (internal app object) and I have no idea how to do that. Can someone please explain how to do it?
Here's my Device.m/h:
#import <CoreLocation/CoreLocation.h>
#import <Foundation/Foundation.h>
#interface Device : NSObject {
NSString *udId;
NSString *name;
NSNumber *latitude;
NSNumber *longitude;
}
#property (nonatomic, retain) NSString *udId;
#property (nonatomic, retain) NSString *name;
#property (nonatomic, retain) NSNumber *latitude;
#property (nonatomic, retain) NSNumber *longitude;
#pragma mark -
#pragma mark MKAnnotation Properties
#property (nonatomic, readonly) CLLocationCoordinate2D coordinate;
#end
----
#import "Device.h"
#implementation Device
#synthesize udId, name, latitude, longitude;
- (CLLocationCoordinate2D)coordinate {
CLLocationCoordinate2D internalCoordinate;
internalCoordinate.latitude = [self.latitude doubleValue];
internalCoordinate.longitude = [self.longitude doubleValue];
return internalCoordinate;
}
- (void)dealloc {
[udId release];
udId = nil;
[name release];
name = nil;
[latitude release];
latitude = nil;
[longitude release];
longitude = nil;
[super dealloc];
}
#end
And here's the methods where I should be reading the response and converting it to objects I can use:
- (void)requestFinished:(ASIHTTPRequest *)request {
if (![request error]) {
NSError *jsonError = nil;
NSDictionary *jsonDictionary = [NSDictionary dictionaryWithJSONString:[request responseString] error:&jsonError];
if (!jsonError || ([[jsonDictionary objectForKey:#"Success"] intValue] == 1)) {
// READ "DEVICES" AND CONVERT TO OBJECTS
} else {
// AUTHORIZATION FAILED
}
}
}
I'd really appreciate some help on this. I just can't seem to wrap my head around it...
Thanks in advance!
You are almost there. In your code where you say:
// READ "DEVICES" AND CONVERT TO OBJECTS
do this:
NSArray * devices = [jsonDictionary objectForKey:#"Devices"];
for(NSDictionary * deviceInfo in devices) {
Device * d = [[[Device alloc] init] autorelease];
[d setLatitude:[deviceInfo objectForKey:#"Latitude"]];
[d setLongitude:[deviceInfo objectForKey:#"Longitude"]];
[d setName:[deviceInfo objectForKey:#"User"]];
[d setUdId:[deviceInfo objectForKey:#"UDId"]];
// do some stuff with d
}
What's going on here: I didn't see what JSON library you are using to convert, but presuming it works like TouchJSON or SBJSON, the JSON array is automatically turned into an NSArray instance, while the inner hashes of the NSArray are NSDictionary objects. At the point that you have deserialized that JSON string, everything you're dealing with will be instances of NSString, NSNumber, NSArray and NSDictionary (and depending on the library, NSNull to represent null values).
First you need to define your initializer/constructor for your Device class.
Device.h
- (id)initWithUdid:(NSString *)udid name:(NSString *)name latitude:(NSNumber *)lat longitude:(NSNumber *)lon;
Device.m
- (id)initWithUdid:(NSString *)udid name:(NSString *)name latitude:(NSNumber *)lat longitude:(NSNumber *)lon {
if (self = [super init]) {
self.udid = udid;
self.name = name;
self.latitude = lat;
self.longitude = lon;
}
return self;
}
Then you can initialize a new object like:
Device *dev = [[Device alloc] initWithUdid:#"a udid" name:#"the name" latitude:latNum longitude:lonNum];
So, you should be able to iterate the array and build your Device objects like so:
NSArray *devicesArray = [dict objectForKey:#"Devices"];
for (NSDictionary *d in devicesArray) {
Device *dev = [[Device alloc] initWithUdid:[d objectForKey:#"UDId"]
name:[d objectForKey:#"User"]
latitude:[NSNumber numberWithDouble:[d objectForKey:#"Latitude"]]
longitude:[NSNumber numberWithDouble:[d objectForKey:#"Latitude"]]];
}
You want to access the array of device dictionaries from the top-level dictionary just as you did the Success value. Then iterating over the dictionaries you can use each's -keyEnumerator method to iterate over its keys.
- (void)requestFinished:(ASIHTTPRequest *)request {
if (![request error]) {
NSError *jsonError = nil;
NSDictionary *jsonDictionary = [NSDictionary dictionaryWithJSONString:[request responseString] error:&jsonError];
if (!jsonError || ([[jsonDictionary objectForKey:#"Success"] intValue] == 1)) {
NSArray* deviceArray = [jsonDictionary objectForKey:#"Devices"];
for(NSDictionary* dict in deviceArray)
{
for(NSString* key in [dict keyEnumerator])
{
NSLog(#"%# -> %#", key, [dict objectForKey:key]);
}
}
// READ "DEVICES" AND CONVERT TO OBJECTS
} else {
// AUTHORIZATION FAILED
}
}
}
Sounds like you need to reuse your line:
[jsonDictionary objectForKey:#"Success"]
try having a look at
[jsonDictionary objectForKey:#"Devices"]
You really need to figure out what type it returns.
If you're lucky, it returns an NSDictionary, or alternately something that you can easily turn into an NSDictionary.