This seems like it should be pretty straight forward - but alas, I'm getting a crash. I'm simply trying to set my UILabel with the text returned from the users_name field:
.m
NSMutableDictionary *viewParams = [NSMutableDictionary new];
[viewParams setValue:#"u000" forKey:#"view_name"];
[DIOSView viewGet:viewParams success:^(AFHTTPRequestOperation *operation, id responseObject) {
self.userData = [responseObject mutableCopy];
self.username.text = [self.userData objectForKey:#"users_name"];
dispatch_async(dispatch_get_main_queue(), ^(void){
});
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(#"Failure: %#", [error localizedDescription]);
}];
The console data returns:
2016-04-05 12:25:36.877 [1331:350069] This is the Other User Data (
{
address = "Vancouver";
userbio = "There is currently no bio available for this user. If you have added your bio, and require assistance, please contact the Team.";
"users_name" = Brittany;
},
That said, this line is causing the crash:
self.username.text = [self.userData objectForKey:#"users_name"];
And this is the error:
2016-04-05 12:25:36.878 [1331:350069] -[__NSCFArray objectForKey:]:
unrecognized selector sent to instance 0x15a23c100 2016-04-05
12:25:36.881 [1331:350069] * Terminating app due to uncaught
exception 'NSInvalidArgumentException', reason: '-[__NSCFArray
objectForKey:]: unrecognized selector sent to instance 0x15a23c100'
* First throw call stack: (0x181d51900 0x1813bff80 0x181d5861c 0x181d555b8 0x181c5968c 0x1000cce9c 0x1000c72bc 0x1000d3cc4
0x100459bf0 0x100459bb0 0x10045f658 0x181d08bb0 0x181d06a18
0x181c35680 0x183144088 0x186aacd90 0x1000d4c88 0x1817d68b8)
libc++abi.dylib: terminating with uncaught exception of type
NSException
How might I fix this? It seems like it should be simple...
I suppose userData is an Array type. Array have no key values.
Try: [[self.userData objectAtIndex:0] objectForKey:#"users_name"];
Related
I hint error as below when i pass in data into PushNotificationManager.
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSSingleObjectArrayI un_stringWithMaxLength:]: unrecognized selector sent to instance 0x604000018550'
Here is my code:-
[self.manager GET:#"http://api.xxxx.com/api/promotion/1" parameters:nil progress:nil success:^(NSURLSessionDataTask *task, id responseObject) {
json_promotion = responseObject;
[[UNUserNotificationCenter currentNotificationCenter] setDelegate:self];
NSString *strProTitle = [json_promotion valueForKey:#"title"];
NSLog(#"strProTitle - %#",strProTitle);
//Will get string "Promotion Today!" which is CORRECT
//If i put NSString *strProTitle = #"testing here", error will not appear.
[[PushNotificationManager sharedInstance]graphicsPushNotificationWithTitle:strProTitle subTitle:#"text here" body:#"desc here" identifier:#"2-1" fileName:#"Graphics.jpg" timeInterval:3 repeat:NO];
Any idea? Please help.
Your error message is basically telling you are passing an array instead of string.
I am guessing this is happening becuase valueForKey is returning an array. While parsing an object it's better to type check.
You could instead use json_promotion[0][#"title"].
If you want a better syntax I would use the following
NSString *strProTitle;
if([json_promotion isKindOfClass:[NSArray class]] {
id obj = json_promotion[0][#"title"]
if ([obj isKindOfClass: [NSString class]]) {
strProTitle = obj;
}
}
This is my code for getting postal code.
CLGeocoder *reverseGeocoder = [[CLGeocoder alloc] init];
[reverseGeocoder reverseGeocodeLocation:locationManager.location completionHandler:^(NSArray *placemarks, NSError *error)
{
NSLog(#"reverseGeocodeLocation:completionHandler: Completion Handler called!");
if (error){
NSLog(#"Geocode failed with error: %#", error);
return;
}
NSLog(#"Received placemarks: %#", placemarks);
CLPlacemark *myPlacemark = [placemarks objectAtIndex:0];
NSString *countryCode = myPlacemark.ISOcountryCode;
NSString *countryName = myPlacemark.country;
NSLog(#"My country code: %# and countryName: %#", countryCode, countryName);
}];
But its always crashing with NSInvalidArgumentException error,
2017-02-07 12:29:58.124 CBB[3654:270750] Lat : 42.771389 Long :
129.423340
2017-02-07 12:29:58.967 CBB[3654:270750] -[__NSDictionaryI bytes]: unrecognized selector sent to instance 0x600000473b80
2017-02-07 12:29:59.011 CBB[3654:270750] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSDictionaryI bytes]: unrecognized selector sent to instance 0x600000473b80'
bytes is NSData's property, so you use NSDictionary as NSData.
I was trying to save some data into fire base.So the format is like am adding contents into NSMutableDictionary and then am adding that into NSMutableArray and sending to FireBase.For first time it was working when i tried to add second contents its crashing with following message
2014-12-08 14:36:43.388 ChangeText[1634:576618] -[__NSArrayI addObject:]: unrecognized selector sent to instance 0x17023e580
2014-12-08 14:36:43.392 ChangeText[1634:576618] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSArrayI addObject:]: unrecognized selector sent to instance 0x17023e580'
*** First throw call stack:
(0x184db259c 0x1954c00e4 0x184db9664 0x184db6418 0x184cbab6c 0x1000fce74 0x189598d34 0x189581e48 0x1895986d0 0x18959835c 0x1895918b0 0x189564fa8 0x189803f58 0x189563510 0x184d6a9ec 0x184d69c90 0x184d67d40 0x184c950a4 0x18de3f5a4 0x1895ca3c0 0x1000fd7ec 0x195b2ea08)
libc++abi.dylib: terminating with uncaught exception of type NSException
My code
Viewdidload
arr=[[NSMutableArray alloc]init];
Firebase *fire=[[Firebase alloc]initWithUrl:#"http://del.firebaseio.com/users"];
[fire observeEventType:FEventTypeValue withBlock:^(FDataSnapshot *snapshot) {
// self.status.text=snapshot.value;
NSLog(#"snapshot%#",snapshot.value);
arr=[snapshot.value copy];
NSLog(#"copied%#",arr);
}];
Button to add values into Firebase
// arr=[[NSMutableArray alloc]init];
dict=[[NSMutableDictionary alloc]init];
[dict setValue:#"test1" forKey:#"username"];
[dict setValue:#"test2" forKey:#"password"];
[dict setValue:#"test3" forKey:#"profilepic"];
[dict setValue:#"test4" forKey:#"profile"];
[dict setValue:#"test5" forKey:#"details"];
[arr addObject:dict];
NSLog(#"added new elements%#",arr);
Firebase *f=[[Firebase alloc]initWithUrl:#"http://del.firebaseio.com/users"];
[f setValue:arr ];
My console logs
2014-12-08 14:36:32.017 ChangeText[1634:576618] snapshot(
{
details = test5;
password = test2;
profile = test4;
profilepic = test3;
username = test1;
}
)
2014-12-08 14:36:32.019 ChangeText[1634:576618] copied(
{
details = test5;
password = test2;
profile = test4;
profilepic = test3;
username = test1;
}
)
2014-12-08 14:36:43.388 ChangeText[1634:576618] -[__NSArrayI addObject:]: unrecognized selector sent to instance 0x17023e580
2014-12-08 14:36:43.392 ChangeText[1634:576618] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSArrayI addObject:]: unrecognized selector sent to instance 0x17023e580'
*** First throw call stack:
(0x184db259c 0x1954c00e4 0x184db9664 0x184db6418 0x184cbab6c 0x1000fce74 0x189598d34 0x189581e48 0x1895986d0 0x18959835c 0x1895918b0 0x189564fa8 0x189803f58 0x189563510 0x184d6a9ec 0x184d69c90 0x184d67d40 0x184c950a4 0x18de3f5a4 0x1895ca3c0 0x1000fd7ec 0x195b2ea08)
libc++abi.dylib: terminating with uncaught exception of type NSException
Please help me to fix this error
[arr addObject:dict]; is creating the crash in this case, since arr is Immutable.
arr=[snapshot.value copy]; gives you an immutable copy of object. You could try with
arr=[snapshot.value mutableCopy];
arr = [snapshot.value copy];
The above line assigns NSArray type instance to your arr object. That's the reason when you try to add objects in your array, it gets crashed because the current instance is of type NSArray, not NSMutableArray. Replace above line with the following line:
[arr addObjectsFromArray:snapshot.value];
I am trying to access keys from a multi NSDictionary.
This is my output from NSLog
Berlijn[23667:60b] data = {
1 = {
data = (
4,
0,
0,
0
);
key = "June 2014";
};
}
When I try to loop through this dictionary and log the key I get NSInvalidArgumentException because key is a NSString.
This is my current code:
- (void) updateRating: (int) companyID {
APICaller *api = [[APICaller alloc] init];
[api setUrl:#"http://domain.examle/api/getcompanyhistory.php"];
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
NSDictionary *parameters = #{
#"token": [[[FBSession activeSession] accessTokenData] accessToken],
#"device_token" : [defaults stringForKey:#"uniqueToken"],
#"companyid" : #(companyID)
};
[api setParameters: parameters];
[api sendPostRequest: ^(AFHTTPRequestOperation *operation, id responseObject) {
NSLog(#"data = %#", responseObject);
for(NSDictionary *contentData in responseObject) {
NSLog(#"contentData = %#", [contentData objectForKey:#"key"]);
}
[self.tableView reloadData];
}: ^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(#"Error: %#", error);
}];
}
As NSDictionary is a dictionary I don't know why it returns a string.
Update (error message):
2014-06-02 01:41:41.386 Berlijn[23747:60b] -[__NSCFString objectForKey:]: unrecognized selector sent to instance 0x1784253e0
2014-06-02 01:41:41.387 Berlijn[23747:60b] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFString objectForKey:]: unrecognized selector sent to instance 0x1784253e0'
*** First throw call stack:
(0x1860a309c 0x192021d78 0x1860a7d14 0x1860a5a7c 0x185fc54ac 0x1000eb8ac 0x1000ea014 0x1925f0420 0x1925f03e0 0x1925f356c 0x186062d64 0x1860610a4 0x185fa1b38 0x18b9c7830 0x188fe00e8 0x1000eaff4 0x19260baa0)
libc++abi.dylib: terminating with uncaught exception of type NSException
(lldb)
Just because you call contentData a dictionary does NOT make it one.
Fast enumeration of a dictionary iterates over keys, NOT values. Your key is a string (even though you call it an NSDictionary) and will throw an exception when you try to call objectForKey: on it.
Since responseObject is a dictionary you can iterate over the keys AND values using enumerateKeysAndObjectsUsingBlock:(void (^)(id key, id obj, BOOL *stop)).
Another option is to use fast enumeration correctly like so...
for(NSString *key in responseObject) {
NSLog(#"contentData = %#", [responseObject objectForKey:key]);
}
In my iOS app I'm trying to update user information in the database (with Stackmob), but I keep getting "unrecognized selector sent to instance."
- (IBAction)save:(UIButton *)sender {
NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] initWithEntityName:#"User"];
NSPredicate *predicte = [NSPredicate predicateWithFormat:#"username == %#", self.username];
[fetchRequest setPredicate:predicte];
[self.managedObjectContext executeFetchRequest:fetchRequest onSuccess:^(NSArray *results) {
NSManagedObject *todoObject = [results objectAtIndex:0];
[todoObject setValue:#"example#gmail.com" forKey:#"email"];
[self.managedObjectContext saveOnSuccess:^{
NSLog(#"You updated the todo object!");
} onFailure:^(NSError *error) {
NSLog(#"There was an error! %#", error);
}];
} onFailure:^(NSError *error) {
NSLog(#"Error fetching: %#", error);
}];
}
Here's the full error I'm getting:
-[NSNull length]: unrecognized selector sent to instance 0x1ec5678
2013-07-21 12:01:25.773 [29207:c07] *** Terminating app due to uncaught exception 'NSInvalidArgumentException',
reason: '-[NSNull length]: unrecognized selector sent to instance 0x1ec5678'
Thanks in advance.
I think it may because your self.username is empty. Note that if you are getting the username data from json , you can't use
if(username){...} but
if(![username isKindOfClass:[NSNull class]])
to avoid empty data because the json interpreter will generate an NSNull object.