I want to replace an array object in NSMutableArray obect.
I am getting oldArray from _alertsArray and changing its value and want to replace oldArray with newArray . but there is no effect!!
NSArray *oldArray = (NSArray *)[_alertsArray objectAtIndex:[indexPath row]];
NSMutableArray *newArray = [[NSMutableArray alloc] initWithArray:oldArray copyItems:YES];
[newArray replaceObjectAtIndex:3 withObject:#"YES"];
[_alertsArray replaceObjectAtIndex:[indexPath row] withObject:newArray];
NSMutableArray *newArray = [_alertsArray mutableCopy];
[newArray replaceObjectAtIndex:3 withObject:#"YES"];
_alertsArray = newArray;
Related
This question already has answers here:
Compare 2 nsmutablearray and get different object to third array in ios
(4 answers)
Closed 9 years ago.
I have two MutableArray values like.
NSMutableArray *array=[[NSMutableArray alloc]initWithObjects:#"Apple", #"Orange", #"Grapes", #"Banana", nil];
NSMutableArray *array1=[[NSMutableArray alloc]initWithObjects:#"Apple", #"Orange", #"Grapes", nil];
Now i have to compare that two Mutable arrays and display that unmatched object "Banana" into one string.
I am fresher to iOS so, anybody would send me the code for that problem.
Thanks in Advance.
As others have suggest, NSSet is probably your best bet. However, given that *array is mutable, you could simply remove the objects from it contained in *array1
NSMutableArray *array=[[NSMutableArray alloc]initWithObjects:#"Apple", #"Orange", #"Grapes", #"Banana", nil];
NSMutableArray *array1=[[NSMutableArray alloc]initWithObjects:#"Apple", #"Orange", #"Grapes", nil];
[array removeObjectsInArray:array1];
NSLog(#"array: %#", array); // array: ( Banana )
// if you require result as a string
NSString *objectsAsString = [array componentsJoinedByString:#", "];
NSLog(#"objects as string: %#", objectsAsString); // objects as string: Banana
for(int i=0;i<[array count];i++)
{
NSString *str1 = [array objectAtIndex:i];
for(int j=0;j<[array1 count];j++)
{
NSString *str2 = [array1 objectAtIndex:j];
if([str1 isEqualToString:str2])
{
//do something which you want i.e add the values to some other array
}
}
}
You should probably use NSSet for this purpose
NSSet *set1 = [NSSet setWithObjects:#"a", #"s", #"d", #"f", nil];
NSSet *set2 = [NSSet setWithObjects:#"a", #"s", nil];
NSMutableSet *notInSet1 = [NSMutableSet setWithSet:set2];
[notInSet1 minusSet:set1];
NSMutableSet *notInSet2 = [NSMutableSet setWithSet:set1];
[notInSet2 minusSet:set2];
NSMutableSet *symmetricDifference = [NSMutableSet setWithSet:notInSet1];
[symmetricDifference unionSet:notInSet2];
NSArray *array1 = [[NSArray alloc] initWithObjects:#"a",#"b",#"c",nil];
NSArray *array2 = [[NSArray alloc] initWithObjects:#"a",#"d",#"c",nil];
NSMutableArray *ary_result = [[NSMutableArray alloc] init];
NSMutableArray *ary_resultUnmatched = [[NSMutableArray alloc] init];
for(int i = 0;i<[array1 count];i++)
{
for(int j= 0;j<[array2 count];j++)
{
if([[array1 objectAtIndex:i] isEqualToString:[array2 objectAtIndex:j]])
{
[ary_result addObject:[array1 objectAtIndex:i]];
} else {
[ary_resultUnmatched addObject:[array1 objectAtIndex:i]];
}
}
}
NSLog(#"%#",ary_result);//it will print a,c
NSLog(#"%#",ary_resultUnmatched);//it will print b,d
so in else condition you'll have your un matched values
I have an array and I want to split that array into 3 parts or 3 arrays.
1st array contains -> AppName
2nd array contains -> Description
3rd array contains -> Icon
Here is the json array I want to split,
Deviceinfo = (
{
Appname = App;
Description = "This is test app";
Icon = "57.png";
}
);
}
Here is my code for this,
NSMutableArray *firstArray = [NSMutableArray array];
NSMutableArray *secondArray = [NSMutableArray array];
NSMutableArray *thirdArray = [NSMutableArray array];
for (int i = 0; i < [json count]; i++) {
NSArray *tempArray = [[json objectAtIndex:i]componentsSeparatedByString:#""];
[firstArray addObject:[tempArray objectAtIndex:0]];
[secondArray addObject:[tempArray objectAtIndex:1]];
if ([tempArray count] == 3)
{
[thirdArray addObject:[tempArray objectAtIndex:2]];
}
}
NSLog(#"yourArray: %#\nfirst: %#\nsecond: %#\nthird: %#", json, firstArray, secondArray, thirdArray);
I observe a crash in the code at this line,
NSArray *tempArray = [[json objectAtIndex:i]componentsSeparatedByString:#""];
I don't understand what is going wrong here. Any pointers to solve this issue?
I think you can using below code i hope this help's you :-
NSMutableArray *firstArray = [NSMutableArray array];
NSMutableArray *secondArray = [NSMutableArray array];
NSMutableArray *thirdArray = [NSMutableArray array];
NSDictionary *jsonArray = [NSJSONSerialization JSONObjectWithData: jsonResponse options: NSJSONReadingMutableContainers error: &e];
//here is first i load with Dicutionary bcz if into your Json you have may be multiple Dictuionary so you then you can load purticular dictionary as bellow line
EDIT
NSArray * responseArr = jsonArray[#"Deviceinfo"];
firstArray = [responseArr valueForKey:#"Appname"];
secondArray = [responseArr valueForKey:#"Description"];
thirdArray = [responseArr valueForKey:#"Icon"];
if you have multiple Deviceinfo dictionary in to your Json then you could use For loop
// NSArray * responseArr = jsonArray[#"Deviceinfo"];
// for (NSDictionary *dict in responseArr) {
// [firstArray addObject:[dict valueForKey:#"Appname"];
// [secondArray addObject:[dict valueForKey:#"Description"];
// [thirdArray addObject:[dict valueForKey:#"Icon"];
// }
NSMutableArray *firstArray = [[NSMutableArray alloc]init];
NSMutableArray *secondArray = [[NSMutableArray alloc]init];
NSMutableArray *thirdArray = [[NSMutableArray alloc]init];
NSDictionary *list =[NSJSONSerialization JSONObjectWithData:data
options:kNilOptions error:&error];
NSArray * tempArray = jsonArray[#"Deviceinfo"];
for (NSDictionary *list in tempArray)
{
[firstArray addObject:[list objectForKey:#"Appname"];
[secondArray addObject:[list objectForKey:#"Description"];
[thirdArray addObject:[list objectForKey:#"Icon"];
}
Then try
NSLog(#"yourArray: %#\nfirst: %#\nsecond: %#\nthird: %#", tempArray, firstArray, secondArray, thirdArray);
NSData *jsonData = [NSData dataWithContentsOfURL:[NSURL URLWithString:#"http://url.to.your.json"]];
NSArray *jsonObjects = [NSJSONSerialization JSONObjectWithData:jsonData options:NSJSONReadingMutableContainers error:nil];
NSMutableArray *appNameArray = [NSMutableArray array];
NSMutableArray *discriptionArray = [NSMutableArray array];
NSMutableArray *iconArray = [NSMutableArray array];
for(NSDictionary *dictionary in jsonObjects)
{
[appNameArray adddObject:[dictionary valueForKey:#"Appname"];
[appNameArray adddObject:[dictionary valueForKey:#"Description"];
[appNameArray adddObject:[dictionary valueForKey:#"Icon"];
}
JSON format code looks like this:
{
"rates": {
"amc": "201",
"hyd": "500.50",
"guj": "200.10",
"afgd": "400"
}
}
After parsing JSON values the above code array returns:
array = [values valueForKey:#"rates"];
which array return
{
amc = "201";
hyd = "500.50";
guj = "200.10";
afgd = "400";
...........etc
}
But i want to print in UITableView look amc:201
How can i do this?
- (void)connectionDidFinishLoading:(NSURLConnection *)connection
{
[connection release];
NSString *responseString = [[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding];
self.responseData = nil;
values = [responseString JSONValue];
array = [[NSMutableArray alloc] init];
NSMutableArray *arrTitle = [[NSMutableArray alloc] init];
NSMutableArray *arrValues = [[NSMutableArray alloc] init];
array =[values valueForKey:#"rates"];
NSLog(#"array values:--> %#",array);
// NSLog(#"values:--> %#",values);
// NSLog(#"Particular values:--> %#",[[values valueForKey:#"rates"] valueForKey:#"AED"]);
tempDict1 = (NSMutableDictionary *)array;
NSArray *arr;// =[[NSArray alloc]init];
arr = [[tempDict1 valueForKey:#"rates"] componentsSeparatedByString:#";"];
NSLog(#"arr-->%#",arr);
NSString *subStar = #"=";
[arrTitle removeAllObjects];
[arrValues removeAllObjects];
for (int i=0; i<[arr count]-1; i++)
{
[arrTitle addObject:[[arr objectAtIndex:i] substringToIndex:NSMaxRange([[arr objectAtIndex:i] rangeOfString:subStar])-1]];
[arrValues addObject:[[arr objectAtIndex:i] substringFromIndex:NSMaxRange([[arr objectAtIndex:i] rangeOfString:subStar])]];
NSLog(#"arrTitle is:--> %#",arrTitle);
}
tempDict1 = (NSMutableDictionary*)[array objectAtIndex:0];
array = [values valueForKey:#"rates"];
NSLog(#"tempDict--%#",[tempDict1 objectForKey:#"AED"]);
[array retain];
[tbl_withData reloadData];
}
try:
NSMutableArray * array2=[[NSMutableArray alloc]init];
[array addObject: [[array objectAtIndex:0] objectForKey:#"amc"]];
[array addObject: [[array objectAtIndex:0] objectForKey:#"hyd"]];
[array addObject: [[array objectAtIndex:0] objectForKey:#"guj"]];
[array addObject: [[array objectAtIndex:0] objectForKey:#"afgd"]];
now put array2 values in your table cell.
like:
cell.text=[array2 objectAtIndex:indexPath.row];
try this:-
NSDictionary *dict =[values valueForKey:#"rates"];
NSString *str=[dict valueForKey:#"amc"];
You need to do this:-
NSString *responseString = [[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding];
self.responseData = nil;
values = [responseString JSONValue];
NSMutableArray *arrTitle = [[NSMutableArray alloc] init];
NSMutableArray *arrValues = [[NSMutableArray alloc] init];
NSDictionary *dict =[values valueForKey:#"rates"];
NSString *str=[dict valueForKey:#"amc"];
rest you can do according to your requirements.
Return type for [values valueForKey:#"rates"] is a dictionary not array of values.
NSDictionary *dict = [values valueForKey:#"rates"];
Now you can refer get values within dictionary using objectForKey
Or else if you want to store in array.
NSMutableArray *array = [NSMutableArray array];
for (NSString *key in [dict allKeys])
{
array = [dict objectForKey:key];
}
So finally array has all the values within dictionary.
// returns no of rows
-(NSInteger) tableView: (UITableView *) tableView numberOfRowsInSection: (NSInteger) section
{
return [array count];
}
// contents of row will be
-(UITableViewCell*) tableView: (UITableView *) tableView cellForRowAtIndexPath: (NSIndexPath *) indexPath
{
static NSString *CellIdentifier = #"test";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil)
{
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
}
// Configure the cell...
NSString *value = [self. array objectAtIndex:indexPath.row];
cell.textLabel.text = value;
return cell;
}
I'm trying to insert a search bar in a tableview, that is loaded with information from a NSDictionary of Arrays. Each Array holds and object. Each object has several properties, such as Name or Address.
I've implemented the methods of NSSearchBar, but the code corresponding to the search it self, that i have working on another project where the Arrays have strings only, is not working, and I can't get to thr problem.
Here's the code:
'indiceLateral' is a Array with the alphabet;
'partners' is a NSDictionary;
'RLPartnersClass' is my class of Partners, each one with the properties (name, address, ...).
-(void)handleSearchForTerm:(NSString *)searchTerm {
NSMutableArray *sectionsToRemove = [[NSMutableArray alloc] init];
[self resetSearch];
for (NSString *key in self.indiceLateral) {
NSMutableArray *array = [partners valueForKey:key];
NSMutableArray *toRemove = [[NSMutableArray alloc] init];
for (NSString *name in array) {
if ([name rangeOfString:searchTerm options:NSCaseInsensitiveSearch].location == NSNotFound)
[toRemove addObject:name];
}
if ([array count] == [toRemove count])
[sectionsToRemove addObject:key];
[array removeObjectsInArray:toRemove];
[toRemove release];
}
[self.indiceLateral removeObjectsInArray:sectionsToRemove];
[sectionsToRemove release];
[theTable reloadData];
}
Can anyone help me please?
Thanks,
Rui Lopes
I've done it.
Example:
-(void)handleSearchForTerm:(NSString *)searchTerm {
NSMutableDictionary *finalDict = [NSMutableDictionary new];
NSString *currentLetter = [[NSString alloc] init];
for (int i=0; i<[indiceLateral count]; i++) {
NSMutableArray *elementsToDict = [[[NSMutableArray alloc] init] autorelease];
currentLetter = [indiceLateral objectAtIndex:i];
NSArray *partnersForKey = [[NSArray alloc] initWithArray:[partnersCopy objectForKey:[indiceLateral objectAtIndex:i]]];
for (int j=0; j<[partnersForKey count]; j++) {
RLNames *partnerInKey = [partnersForKey objectAtIndex:j];
NSRange titleResultsRange = [partnerInKey.clientName rangeOfString:searchTerm options:NSDiacriticInsensitiveSearch | NSCaseInsensitiveSearch];
if (titleResultsRange.length > 0){
NSLog(#"found: %#", partnerInKey.clienteCity
[elementsToDict addObject:partnerInKey];
}
}
[finalDict setValue:elementsToDict forKey:currentLetter];
}
NSMutableDictionary *finalResultDict = [finalDict mutableDeepCopy];
self.partners = finalResultDict;
[finalResultDict release];
[theTable reloadData];
}
NSString *list = #"Norman, Stanley, Fletcher";
NSMutableArray *a2 = [[NSMutableArray alloc] init];
//a2= [list componentsSeparatedByString:#", "];
[a2 addObject:list];
//NSArray *listItems = [list componentsSeparatedByString:#", "];
NSLog(#"array is %#",a2);
NSLog(#"array o %#",a2[0]);
how to get a2[0]=Norman , a2[1]=stanley???
Trying this
NSArray *listItems = [list componentsSeparatedByString:#", "];
[a2 addObject:list];
NSLog(#"array o %#", [a2 objectAtIndex:0]);
When you create a mutable array you have to add objects to the array. You can't set the mutable array equal to a normal array (its returned by componentsSeparatedByString:)
NSString *list = #"Norman, Stanley, Fletcher";
NSMutableArray *a2 = [[NSMutableArray alloc] init];
[a2 addObjectsFromArray:[list componentsSeparatedByString:#", "]];
NSLog(#"array is %#",a2);
NSLog(#"array o %#",[a2 objectAtIndex:0]);