I'm stumpped on how iterate and get values for an Array of Arrays of NSDictionaries (different classes/entities). Here's what I'm currently doing:
1) Constructing two separate arrays of NSDictionaries (different entities)
2) Combining both arrays with:
NSMutableArray *combinedArrayofDicts = [[NSMutableArray alloc] initWithObjects: sizesArrayOfDicts, wishListArrayOfDicts , nil];
3) Then archive combinedArrayofDicts :
NSData *dataToSend = [NSKeyedArchiver archivedDataWithRootObject:combinedArrayofDicts];
4) Transmit over GameKit
[self.session sendDataToAllPiers:dataToSend withDataMode: GKSendDataReliable error:nil];
5) How would I manage traversing thru this array on the receiving end? I want to fetch values by for each class which is key'ed by classname:
Here's how it looks via NSLog (2 Sizes Dicts, and 1 Wishlist Dict)
Printing description of receivedArray:
<__NSArrayM 0xbc65eb0>(
<__NSArrayM 0xbc651f0>(
{
classname = Sizes;
displayOrder = 0;
share = 1;
sizeType = Neck;
value = "13\" or 33 (cm)";
},
{
classname = Sizes;
displayOrder = 0;
share = 1;
sizeType = Sleeve;
value = "34\" or 86 (cm)";
}
)
,
<__NSArrayM 0xbc65e80>(
{
classname = Wishlist;
detail = "";
displayOrder = 0;
imageString = "";
latitude = "30.33216666666667";
link = "http://maps.google.com/maps?q=loc:30.332,-81.41";
longitude = "-81.40949999999999";
name = bass;
share = 1;
store = "";
}
)
)
(lldb)
In my for loop I'm issuing this:
NSString *value = [dict objectForKey:#"classname"];
and get an exception:
* Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSArrayM objectForKey:]:
unrecognized selector sent to instance 0xbc651f0'
Is this frowned upon as far as mixing object types in arrays of arrays?
#Will guided me to the answer with the right construct.. Here's the final answer:
NSArray *receivedArray;
if(receivedArray.count>0){
NSArray *combinedArrayofDicts = [receivedArray objectAtIndex:0];
if(combinedArrayofDicts.count>=2){
NSArray *sizesArray = [receivedArray objectAtIndex:0]; // Reference original received array
for(NSDictionary *sizeDict in sizesArray){
NSLog(#"%#",sizeDict);
}
NSArray *wishListArray = [receivedArray objectAtIndex:1]; // Reference original received array
for(NSDictionary *wishDict in wishListArray){
NSLog(#"%#",wishDict);
}
}
}
for fetching the required dictionaries use the following code,
Assume receivedArray as the array receive from Game center
NSArray *receivedArray;
if(receivedArray.count>0){
NSArray *combinedArrayofDicts = [receivedArray objectAtIndex:0];
if(combinedArrayofDicts.count>=2){
NSArray *sizesArray = [combinedArrayofDicts objectAtIndex:0];
for(NSDictionary *sizeDict in sizesArray){
NSLog(#"%#",sizeDict);
}
NSArray *wishListArray = [combinedArrayofDicts objectAtIndex:1];
for(NSDictionary *wishDict in wishListArray){
NSLog(#"%#",wishDict);
}
}
}
how iterate and get values for an Array of Arrays of NSDictionaries
As you said you have array of array of dictionaries, your current code will not retrive value of class name.
Your return values are in NSArray not in NSDictionary
So you need to do something like,
NSString *value = [returnArray[0][0] objectForKey:#"classname"];
You can iterate and get values like,
for (int i = 0; i < [returnArray count]; i++) {
for (int j = 0; j < [returnArray[i] count]; j++) {
NSDictionary *dict = (NSDictionary*)returnArray[i][j];
NSLog(#"%# ...",[dict objectForKey:#"classname"]);
}
}
Perhaps you can try:
NSString *value = [NSString stringWithFormat:#"%#",[dict objectForKey:#"classname"]];
By the looks of your output, I don't think "Sizes" is a string.
Related
I am new to Objective-C And here I have a Json that I've stored into a NSArray. And I am trying to get the English, Dutch, Portuguese
{
English = (
One,
Two,
Three
);
Dutch = (
Een
);
Portuguese = (
Um,
Dois
}
And here's what I've done:
languageArray = result;
for (i = [languageArray count] - 1; i >= 0; i--)
{
NSString *languageTitle = [languageArray objectAtIndex:i];
NSLog(#"languageTitle %#", languageTitle);
}
And I have this error -[__NSCFDictionary objectAtIndex:]: unrecognized selector sent to instance 0x7f8c68e53610 but my languageArray count is 3. I don't know why I can't get the objectAtIndex:i I've tried to use objectAtIndex:0 but still the same result
just use
NSArray*languages = [result allKeys];
for getting values for languages you have to do this
NSMutableArray *mutableArray = [[NSMutableArray alloc]init];
for (int i=0 ; i<languages.count ; i++){
[mutableArray addObject:[result valueForKey:[languages objectAtIndex:indexpath.row]]];
}
So finally you have mutable array which contains values for every language as array;
You can get values for english with respect to index of language.
For example you can get values for Dutch as
NSArray *dutchValues = [mutableArray objectAtIndex:1];
I am using following code to separate a string into multiple strings and getting an error
NSArray *arr = [randomStr componentsSeparatedByString:#";"];
Error:
-[__NSDictionaryM componentsSeparatedByString:]: unrecognized selector sent to instance 0x1758f230
-[__NSDictionaryM componentsSeparatedByString:]: unrecognized selector sent to instance 0x1758f230
This is my Sample Data
NSArray *data = {
{
name = "name1";
address = "RWP";
ID = 0;
},
{
name = "name2";
address = "RWP";
ID = 1;
},
{
name = "name3";
address = "RWP";
ID = 2;
},}
NSString *randomStr = data[0];
What's wrong in my code
You have an array of dictionaries, not strings. There is nothing to split.
You want something like this:
NSDictionary *dict = data[0];
NSString *name = dict[#"name"];
NSString *address = dict[#"address"];
You have to be sure randomStr as a NSString.
You can check like
if ([randomStr isKindOfClass:[NSString Class]]) {
NSArray *arr = [randomStr componentsSeparatedByString:#";"];
}
It sounds like the randomStr variable is an MutableDictionary. Thats why its not working.
here is my Test:
NSString *foo = #"BAR;FOO;VAR";
NSArray *arr = [foo componentsSeparatedByString:#";"];
NSLog(#"%#", arr);
Thise Logs:
BAR,
FOO,
VAR
EDIT:
Dictionary to array:
NSMutableDictionary *dict = #{#"aKey1" :#"BAR",
#"aKey2" :#"FOO",
#"aKey3" :#"VAR"}.mutableCopy;
NSMutableArray *array = [[NSMutableArray alloc] init];
for (NSString *key in dict) {
[array addObject:dict[key]];
}
NSLog(#"%#",array);
This Logs:
BAR,
FOO,
VAR
I've read and tried a dozen or more variants of my own question, but still need some help please.
I have a large existing array, and I want to add a new object (key and value) to each record.
This is an element in the incoming array:
{
"trip_id": 65,
"arrival_time": "08:56:08",
"departure_time": "08:56:08",
"stop_id": 1161,
"stop_sequence": 8,
"stop_headsign": 0
},
This is what I want to achieve:
{
"trip_id": 65,
"arrival_time": "08:56:08",
"departure_time": "08:56:08",
"stop_id": 1161,
"stop_name": "a stop name",
"stop_sequence": 8,
"stop_headsign": 0
},
This is my code so far -- the commented lines are other attempts:
NSString *nameKey = #"stop_name";
int i=0;
for (i=0; i<stopTimesArray.count; i++) {
NSNumber *stopTimesId = [stopTimesArray[i] valueForKey:#"stop_id"];
int j=0;
for (j=0; j<stopArray.count; j++) {
NSNumber *stopId = [stopArray[j] valueForKey:#"stop_id"];
if (stopId == stopTimesId) {
NSString *stopNameString = [stopArray[j] valueForKey:#"stop_name"];
NSLog(#"stopNameString: %#", stopNameString);
[outgoingStopTimesDictionary setObject:stopNameString forKey:#"stop_name"];
//[outgoingStopTimesArray addObject:outgoingStopTimesDictionary];
//[outgoingStopTimesArray addObjectsFromArray:stopTimesArray[i]];
//[stopTimesArray[i] addObject:#{#"stop_name":stopNameString}];
//[stopTimesArray[i] addObject:#{#"stop_name":stopNameString}];
[stopTimesArray[i] addObject: outgoingStopTimesDictionary];
}
}
}
//NSLog(#"outgoingStopTimesArray: %#", outgoingStopTimesArray);
//NSLog(#"outgoingStopTimesDictionary: %#", outgoingStopTimesDictionary);
//NSLog(#"stopTimesArray: %#", stopTimesArray);
The error I am getting with approach is:
stopNameString: S Monroe Street, NB # 18th Street S, NS
[__NSCFDictionary addObject:]: unrecognized selector sent to instance 0x7fd7f2c22760
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFDictionary addObject:]: unrecognized selector sent to instance 0x7fd7f2c22760'
I'm either getting a null dictionary, or an unrecognised object exception when I try to add the dictionary to my array. Please point me to a working answer, and I'll delete my question.
It appears that your goal is to add one new key/value pair to the dictionary at stopTimesArray[i]. Here's your code all cleaned up with what I believe you need:
for (NSMutableDictionary *stopTimesDictionary in stopTimesArray) {
NSNumber *stopTimesId = stopTimesDictionary[#"stop_id"];
for (NSDictionary *stopDictionary in stopArray) {
NSNumber *stopId = stopDictionary[#"stop_id"];
if ([stopTimesId isEqual:stopId]) {
NSString *stopNameString = stopDictionary[#"stop_name"];
stopTimesDictionary[#"stop_name"] = stopNameString;
// Uncomment the following line if "stop_id" is unique within the "stopArray"
// break;
}
}
}
Since it seems your stopTimesArray contains immutable dictionaries, the above code won't work as written. Here is a solution that deals with that:
for (NSInteger i = 0; i < stopTimesArray.count; i++) {
NSDictionary *stopTimeDictionary = stopTimesArray[i];
NSNumber *stopTimesId = stopTimesDictionary[#"stop_id"];
for (NSDictionary *stopDictionary in stopArray) {
NSNumber *stopId = stopDictionary[#"stop_id"];
if ([stopTimesId isEqual:stopId]) {
NSString *stopNameString = stopDictionary[#"stop_name"];
NSMutableDictionary *tempDict = [stopTimesDictionary mutableCopy];
tempDict[#"stop_name"] = stopNameString;
[stopTimesArray replaceObjectAtIndex:i withObject:tempDict];
// Uncomment the following line if "stop_id" is unique within the "stopArray"
// break;
}
}
}
dictTo=[NSDictionary new];
dictTo =
#{
#"vPLocationLat" : [NSString stringWithFormat:#"%#",[[[[json valueForKey:#"result"] valueForKey:#"geometry"] valueForKey:#"location"] valueForKey:#"lat"]],
#"vPLocationLong" : [NSString stringWithFormat:#"%#",[[[[json valueForKey:#"result"] valueForKey:#"geometry"] valueForKey:#"location"] valueForKey:#"lng"]]
};
arrLocationList =[NSMutableArray new];
arrLocationList =[dictTo[#"data"] mutableCopy];
another Solution
-> Try to implement your Code as per in given Code
NSMutableArray* newArray = [NSMutableArray array];
NSArray* oldArray = outerDictionary[#"scores"];
for (NSDictionary* dictEntry in oldArray) {
NSString* leagueCode = dictEntry[#"league_code"];
if ([leagueCode isEqualToString #"epl"]) {
[newArray addObject:dictEntry];
}
}
Another one Solution
Try something like this.
Assume your array is called array and yourNewNameString is your new value for name
for(NSMutableDictionary *dict in array){
if([[dict objectForKey:#"id"]integerValue]==5){
[dict setObject:yourNewNameString forKey#"name"];
}
}
edit This is assuming you initialized your array with NSMutableDictionarys (Not just NSDictionarys)
//You can create dictionary and add it into NSMutableArray Object Like..
NSMutableArray *arr = [[NSMutableArray alloc] init];
NSDictionary *inventory = #{
#"Mercedes-Benz SLK250" : [NSNumber numberWithInt:13],
#"Mercedes-Benz E350" : [NSNumber numberWithInt:22],
#"BMW M3 Coupe" : [NSNumber numberWithInt:19],
#"BMW X6" : [NSNumber numberWithInt:16],
};
[arr addObject:inventory];
//You can access using key like...
NSString *strForBMWX6 = [[arr objectAtIndex:0] valueForKey:#"BMW X6"];
// in your case you just miss objectAtIndex:j
First, thanks #rmaddy.
I modified his answer a bit, but his was basically correct.
My final code looks like this:
for (NSInteger i = 0; i < stopTimesArray.count; i++) {
NSDictionary *stopTimesDictionary = stopTimesArray[i];
NSNumber *stopTimesId = stopTimesDictionary[#"stop_id"];
for (NSDictionary *stopDictionary in stopArray) {
NSNumber *stopId = stopDictionary[#"stop_id"];
if ([stopTimesId isEqual:stopId]) {
NSString *stopNameString = stopDictionary[#"stop_name"];
NSMutableDictionary *tempDict = [stopTimesDictionary mutableCopy];
tempDict[#"stop_name"] = stopNameString;
[outgoingStopTimesArray addObject:tempDict];
break;
}
}
}
This question already has answers here:
NSDictionary with ordered keys
(9 answers)
Closed 8 years ago.
I saw many examples on SO but I'm not sure if it applies to this situation. Everywhere it says NSMutableDictionries are not guaranteed an order...but I'm getting my data from the server...so my NSMuteDic looks like this:
{
joe = (
{
fromName = joe;
id = 25;
theMessage = "this is going to be a really big message...";
timeAdded = "2014-04-07 21:08:12";
toName = "me";
},
{
fromName = joe;
id = 10;
theMessage = "why???";
timeAdded = "2014-04-05 20:10:04";
toName = "me";
}
);
bob = (
{
fromName = "me";
id = 24;
theMessage = "blah blah";
timeAdded = "2014-04-06 21:15:06";
toName = bob;
},
{
fromName = bob;
id = 22;
theMessage = message;
timeAdded = "2014-04-06 20:11:57";
toName = "me";
}
);
//more entries here
}
What I want to do is change the order...put bob first and joe second. Is this really impossible to do? I saw many very complex solutions...there's no easy way to do this with just a for loop?
cellForRowAtIndexPath:
NSMutableArray *temp = [myDict objectForKey:keys[indexPath.row]];
cell.Message.text = [[reverse lastObject] valueForKey:#"theMessage"];
cell.dateTime.text = [[reverse lastObject] valueForKey:#"timeAdded"];
return cell;
This is how I'm using it...and when a row is selected I pass the array to the next view controller. The reason why I want to reorder is if a new message will be inserted in the pushed view controller, I want that dictionary to be first in the list so the root view controller can be reordered.
NSArray *keys = [myDict allKeys];
[myDict removeObjectForKey:to];
NSMutableDictionary *temp = [NSMutableDictionary dictionaryWithCapacity:[myDict.count];
temp = myDict;
[myDict removeAllObjects];
[myDict setObject:currentDict forKey:to];
for (int i=0; i<temp.count; i++) {
[myDict setObject:[temp valueForKey:keys[i]] forKey:keys[i]];
}
That's not working because it looks like since myDict is a NSObject, temp gets changed every time myDict changes...from the looks of it the logic should work but it isn't...
NSMutableDictionary is not ordered. There is nothing you can do to guarantee the order of keys because NSDictionary makes no attempt to preserve any particular ordering. To go over a dictionary in a particular order, you have to make an array of the keys that is in the order you want, then iterate that and fetch the corresponding values.
// Get the keys
NSArray *keys = [myDict allKeys];
// Sort the keys
NSArray *sortedArray = [NSArray arrayWithArray:[keys sortedArrayUsingComparator:^(NSString* a, NSString* b) {
return [a compare:b];
}]];
// Iterate the dictionary
for (NSUInteger n = 0 ; < [sortedArray count]; n++) {
id value = [myDict objectForKey:[sortedArray objectAtIndex:n]];
}
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]);