can i use like this r not
for (NSString *string in userInfo){
lblUserName.text = (NSString *) [userInfo objectForKey:#"name"];
lblLocation.text = (NSString *) [userInfo objectForKey:#"location"];
lblDescription.text =(NSString *) [userInfo objectForKey:#"description"];
NSLog(#"User profileData Received: %#", userInfo);
}
here userInfo = NSArray (this is delegate i can change )
lblUserName = label name
ObectForKey is using for searching NSString
thank you, is this Right r wrong one
if not how i have to work out
NSArray are not key based but index based. Use NSDictionary instead or use index to retrieve items.
and I don't understand what is the loop for, you don't even use the string var in it ???
Related
I want to add names in a data array only if the name does not previously exist in the data array. When I attempt to print these names, I do get repetitions. Is there a way to solve this?
-(NSMutableArray *)autoComplete
{
NSMutableArray *dataArray = [[NSMutableArray alloc] init];
NSString *url = [NSString stringWithFormat:#"%#45.25,-95.25&limit=100&client_id=Von0J4Bu6INiez5bGby2R&client_secret=50sUjSbg7dba8cQgtpdfr5Ns7wyYTqtmKpUU3khQ",kWSURL];
NSDictionary * returnDict = (NSDictionary *) [self callWebService:url];
if([returnDict objectForKey:#"success"])
{
NSArray *responceArray = [returnDict objectForKey:#"response"];
for (NSDictionary *dict in responceArray) {
placeDC *place = [[placeDC alloc]init];
NSDictionary *placeDict = (NSDictionary *)[dict objectForKey:#"place" ];
NSDictionary *loctionDict =(NSDictionary *)[dict objectForKey:#"loc"];
NSString * name =[placeDict objectForKey:#"name"];
NSString * stateFull =[placeDict objectForKey:#"stateFull"];
NSString * countryFull =[placeDict objectForKey:#"countryFull"];
NSString *latitude =[loctionDict objectForKey:#"lat"];
NSString *longitude = [loctionDict objectForKey:#"long"];
place.placeNmae=name;
place.countryFullName=countryFull;
place.stateFullName=stateFull;
NSLog(#"%# ",stateFull);
place.latitude=[latitude doubleValue];
place.longitude=[longitude doubleValue];
[dataArray addObject:place];
}
}
return dataArray;
}
First Check that is there any response from the Server side or not, to check response use NSLog() or Break Points.
if response is ok then put a the following check your code
if (![dataArray containsObject:#"Some Name"])
{
// add Object
}
You could add the name NSString to an NSSet and check in every cycle whether it contains it or not.
Inside your if you could write something like:
NSArray *responceArray = [returnDict objectForKey:#"response"];
NSSet *names = [[NSSet alloc] init];
for (NSDictionary *dict in responceArray) {
NSDictionary *placeDict = (NSDictionary *)[dict objectForKey:#"place" ];
NSString * name =[placeDict objectForKey:#"name"];
if (![names containsObject:name]) {
[names addObject:name];
placeDC *place = [[placeDC alloc]init];
NSDictionary *loctionDict =(NSDictionary *)[dict objectForKey:#"loc"];
NSString * stateFull =[placeDict objectForKey:#"stateFull"];
NSString * countryFull =[placeDict objectForKey:#"countryFull"];
NSString *latitude =[loctionDict objectForKey:#"lat"];
NSString *longitude = [loctionDict objectForKey:#"long"];
place.placeNmae=name;
place.countryFullName=countryFull;
place.stateFullName=stateFull;
NSLog(#"%# ",stateFull);
place.latitude=[latitude doubleValue];
place.longitude=[longitude doubleValue];
[dataArray addObject:place];
}
}
Hope this helps!
Do one thing, add your dict in another array and search in this array that data already exist or not,
[tempAry addObject: dict];
and before insertion
NSPredicate *predicate = [NSPredicate predicateWithFormat:#"name == %#", name];
NSArray *filteredArray = [tempAry filteredArrayUsingPredicate:predicate];
if ([filteredArray count] == 0)
{
[dataArray addObject:place];
}
else{
//Already exist
}
Why don't you create a separate dictionary, as an ivar or property of you class, for storing our required value, say it as :
NSMutableDictionary *uniqueValueDict=[NSMutableDictionary new];
And keep storing your required value and key as:
[uniqueValueDict setObject:stateFull forKey:uniqueValueDict];
Your work will be done.
This is the easiest solution that i have applied and this should get you going in picking up unique elements out of array.
NSArray * claimedOfferArray = [[NSArray alloc]initWithObjects:#"A",#"B",#"A",#"C",#"B" nil];
NSArray * distinctArray = [[NSArray alloc]init];
distinctArray =[[NSSet setWithArray:claimedOfferArray] allObjects];
This code will also work with NSMutableArray
Let me know if it works for you..:).
So I have a NSString with a url like this:
NSString stringWithFormat:#"/reading.php?title=blah&description="blah"&image_url=blah... "
what is the best way to append query string to this string? is there a dictionary kind of way to do this?
What you want to do is this.
[NSString stringWithFormat:#"/reading.php?title=blah&description=%#&image_url=blah... ",blah];
Basically %# in the context meaning that you'll pass use a dynamic value which will be a string.
How about a category?
This is not great but for a first pass should give you something to get started
#interface NSDictionary (ps_additions)
- (NSString *)ps_URLParamsValue;
#end
#implementation NSDictionary (ps_additions)
- (NSString *)ps_URLParamsValue;
{
NSMutableString *params = [NSMutableString string];
[self enumerateKeysAndObjectsUsingBlock:^(id key, id obj, BOOL *stop){
[params appendFormat:#"%#=%#&", key, obj];
}];
return [params copy];
}
#end
This would end up with something like:
NSDictionary *params = [NSDictionary dictionaryWithObjectsAndKeys:#"42", #"special_number", #"value", #"another", nil];
NSString *myString = [NSString stringWithFormat:#"/reading.php?%#", [params URLParamsValue]];
NSLog(#"%#", myString);
#=> 2012-03-20 23:54:55.855 Untitled[39469:707] /reading.php?another=value&special_number=42&
You can use something like:
NSString *parameter1 = #"blah";
NSString *parameter2 = #"anotherblah";
NSString *fullURL = [NSString stringWithFormat:#"/reading.php?title=%#&image_url=%#", parameter1, parameter2];
You can add as many parameters as you want. Use "%#" where you will be dynamically adding the text.
Good luck :)
Copy pasting from Paul.s - which is the correct answer, imo - and fixing a (most likely inconsequential) problem of a dangling ampersand...
#interface NSDictionary (ps_additions)
- (NSString *)ps_URLParamsValue;
#end
#implementation NSDictionary (ps_additions)
- (NSString *)ps_URLParamsValue;
{
if (!self.count) return #"";
NSMutableString *params = [NSMutableString string];
[self enumerateKeysAndObjectsUsingBlock:^(id key, id obj, BOOL *stop){
[params appendFormat:#"%#=%#&", key, obj];
}];
// return everything except that last ampersand
return [[params copy] substringToIndex:[params length]-1];
}
#end
I have an NSMutableArray that looks like this
{
"#active" = false;
"#name" = NAME1;
},
{
"#active" = false;
"#name" = NAME2;
}
Is there a way to convert this to an NSDictionary and then use objectForKey to get an array of the name objects? How else can I get these objects?
There is a even shorter form then this proposed by Hubert
NSArray *allNames = [array valueForKey:#"name"];
valueForKey: on NSArray returns a new array by sending valueForKey:givenKey to all it elements.
From the docs:
valueForKey:
Returns an array containing the results of invoking
valueForKey: using key on each of the array's objects.
- (id)valueForKey:(NSString *)key
Parameters
key The key to retrieve.
Return Value
The value of the retrieved key.
Discussion
The returned array contains NSNull elements for each object that returns nil.
Example:
NSArray *array = #[#{ #"active": #NO,#"name": #"Alice"},
#{ #"active": #NO,#"name": #"Bob"}];
NSLog(#"%#\n%#", array, [array valueForKey:#"name"]);
result:
(
{
active = 0;
name = Alice;
},
{
active = 0;
name = Bob;
}
)
(
Alice,
Bob
)
If you want to convert NSMutableArray to corresponding NSDictionary, just simply use mutableCopy
NSMutableArray *phone_list; //your Array
NSDictionary *dictionary = [[NSDictionary alloc] init];
dictionary = [phone_list mutableCopy];
This is an Array of Dictionary objects, so to get the values you would:
[[myArray objectAtIndex:0]valueForKey:#"name"]; //Replace index with the index you want and/or the key.
This is example one of the exmple get the emplyee list NSMutableArray and create NSMutableDictionary.......
NSMutableArray *emloyees = [[NSMutableArray alloc]initWithObjects:#"saman",#"Ruchira",#"Rukshan",#"ishan",#"Harsha",#"Ghihan",#"Lakmali",#"Dasuni", nil];
NSMutableDictionary *dict = [NSMutableDictionary dictionary];
for (NSString *word in emloyees) {
NSString *firstLetter = [[word substringToIndex:1] uppercaseString];
letterList = [dict objectForKey:firstLetter];
if (!letterList) {
letterList = [NSMutableArray array];
[dict setObject:letterList forKey:firstLetter];
}
[letterList addObject:word];
} NSLog(#"dic %#",dict);
yes you can
see this example:
NSDictionary *responseDictionary = [[request responseString] JSONValue];
NSMutableArray *dict = [responseDictionary objectForKey:#"data"];
NSDictionary *entry = [dict objectAtIndex:0];
NSString *num = [entry objectForKey:#"num"];
NSString *name = [entry objectForKey:#"name"];
NSString *score = [entry objectForKey:#"score"];
im sorry if i can't elaborate much because i am also working on something
but i hope that can help you. :)
No, guys.... the problem is that you are stepping on the KeyValue Mechanism in cocoa.
KeyValueCoding specifies that the #count symbol can be used in a keyPath....
myArray.#count
SOOOOOO.... just switch to the ObjectForKey and your ok!
NSMutableDictionary *myDictionary = [NSMutableDictionary dictionaryWithObjectsAndKeys:#"theValue", #"#name", nil];
id kvoReturnedObject = [myDictionary valueForKey:#"#name"]; //WON'T WORK, the # symbol is special in the valueForKey
id dictionaryReturnedObject = [myDictionary objectForKey:#"#name"];
NSLog(#"object = %#", dictionaryReturnedObject);
I'm using MGTWitterEngine and I cannot figure out why my dictionary items are returning null.
I have this method:
- (void)searchResultsReceived:(NSArray *)searchResults forRequest:(NSString *)connectionIdentifier{
NSDictionary *result = [searchResults objectAtIndex:0];
NSString *fromUser = [result valueForKey:#"from_user"];
NSLog(#"from user: %#", fromUser);
}
And for some reason, my NSLog always displays "from user: NULL". I can do an NSLog of searchResults which dumps the contents of the search correctly, but I can't figure out how to parse the information. Any help would be greatly appreciated.
Look at this question: Parsing Search Result with MGTwitterEngine in Objective C
They use:
- (void)searchResultsReceived:(NSArray *)searchResults
forRequest:(NSString *)connectionIdentifier
{
if ([searchResults count] > 0)
{
NSDictionary *result = [searchResults objectAtIndex:0];
NSString *fromUser = [result valueForKey:#"from_user"];
NSString *fromUserID = [result valueForKey#"from_user_id"];
// ...
NSString *text = [result valueForKey#"text"];
NSLog(#"User %#(%#): %#", fromUser, fromUserID, text);
}
}
It is similar to your code with a check on searchResults count.
NSMutableArray count is returning zero after adding objects to it, its been an hour of hacking away trying to figure out why, and I'm still stuck, so that brings me here.
Any ideas based off the following code, what the problem is?
the object 'search' is a custom class defined in the header set as a pointer, with retain, nonatomic attributes.
- (NSMutableArray *) populateArrayFromPlist{
NSLog(#"Populate Array from PList");
NSDictionary *dictionary;
// read "foo.plist" from application bundle
NSString *path = [[NSBundle mainBundle] bundlePath];
NSString *finalPath = [path stringByAppendingPathComponent:#"asearch.plist"];
dictionary = [NSDictionary dictionaryWithContentsOfFile:finalPath];
for (id key in dictionary)
{
search = [[ASearch alloc] init];
[dictionary valueForKey:key];
[search setID:[[dictionary valueForKey:key] intValue] ];
//[[search searchString] initWithString: key];
search.searchString = [[NSMutableString alloc] initWithString: key];
if (search == nil) {
printf("Let me know now\n\n\n\n");
}
NSLog(#"%#", [search searchString]);
NSLog(#"Setting string Value: %s\n", [key cString]);
NSLog(#"Setting ID Value: %i\n", [[dictionary valueForKey:key] intValue]);
//NSLog(#"aSearchArray count == %i", [[aSearchArray count] intValue]);
[aSearchArray addObject:search];
NSLog(#"aSearchArray count == %i", [aSearchArray count] );
aSearchArray is a nil object that is the only reason why you are getting count as zero.
For more confirmation just create a new local array and try to add your object to it.
You will get a proper count