I know this may be a repeated question but I googled a lot but not able to find a suitable answer for me.
I have a NSMutableArray which has two NSDictionary with Keys and values which I need to populated on a UITableView. I have retrieved the value of the dictionary which I'm going populate using
NSMutableArray *mutArray = [responseArray valueForKey:#"Table"];
And I did like
NSMutableSet *names = [NSMutableSet set];
NSMutableArray *mutArray1 = [[NSMutableArray alloc] init];
for (id obj in mutArray) {
NSString *destinationName = [obj valueForKey:#"AssetClassName"];
if (![names containsObject:destinationName]) {
[mutArray1 addObject:destinationName];
[names addObject:destinationName];
}
}
Because the value AssetClassName is repeated. Now I have three values in mutArray1 which I need to show as UITableView section. Under AssetClassName I have Some data which determines the row in that section.
For retrieving that data I'm doing like
for (int i = 0; i < [mutArray1 count]; i++) {
NSMutableDictionary *a = [[NSMutableDictionary alloc] init];
NSMutableDictionary *b = [[NSMutableDictionary alloc] init];
for (NSDictionary *dict in mutArray) {
if ([[mutArray1 objectAtIndex:i] isEqualToString:[dict valueForKey:#"AssetClassName"]]) {
[a setObject:[dict objectForKey: #"SubAssetClassName"] forKey:#"Investment Categories"];
[a setObject:[dict valueForKey:#"Amount"] forKey:#"Amount (EUR)"];
[a setObject:[dict valueForKey:#"AllocationPercentage"] forKey:#"%"];
[a setObject:[dict valueForKey:#"ModelAllocationPercentage"] forKey:#"ModelAllocationPercentage"];
[b setObject:a forKey:[dict valueForKey:#"SubAssetClassName"]];
[mutdict setObject:b forKey:[dict valueForKey:#"AssetClassName"]];
}
}
}
mutdict is a NSMutableDictionary declared globally and is instantiate in viewdidLoad
mutdict = [[NSMutableDictionary alloc] init];
The values are inserted into mutdict as I needed. Each SubAssetClassName is added into AssetclassName accordingly.
But my problem is in my final dictionary i.e mutdict the values for SubAssetClassName is repeated.
Can anybody tell how to solve this.
My console
"AssetClassName" = {
"SubAssetClass" = {
"%" = 0;
"Amount (EUR)" = 0;
"Investment Categories" = "HIGH YIELD BONDS";
"ModelAllocationPercentage" = 22;
};
"SubAssetClass" = {
"%" = 0;
"Amount (EUR)" = 0;
"Investment Categories" = "HIGH YIELD BONDS";
"ModelAllocationPercentage" = 22;
};
"SubAssetClass" = {
"%" = 0;
"Amount (EUR)" = 0;
"Investment Categories" = "HIGH YIELD BONDS";
"ModelAllocationPercentage" = 22;
};
};
"AssetClassName" = {
"SubAssetClass" = {
"%" = 0;
"Amount (EUR)" = 0;
"Investment Categories" = "EMERGING MARKETS EQUITIES";
"ModelAllocationPercentage" = 10;
};
};
"AssetClassName" = {
"SubAssetClass" = {
"%" = 0;
"Amount (EUR)" = 0;
"Investment Categories" = "STRUCTURED PRODUCTS";
"ModelAllocationPercentage" = 10;
};
"SubAssetClass" = {
"%" = 0;
"Amount (EUR)" = 0;
"Investment Categories" = "STRUCTURED PRODUCTS";
"ModelAllocationPercentage" = 10;
};
"SubAssetClass" = {
"%" = 0;
"Amount (EUR)" = 0;
"Investment Categories" = "STRUCTURED PRODUCTS";
"ModelAllocationPercentage" = 10;
};
};
}
Here I can see that all SubAssetClass values are same for each section but actually its not.
How can I solve this.
You need to create a new instance of your mutable dictionary inside the loop. Right now you create one instance and update it over and over. This results in one dictionary being added over and over.
Change you code as follows:
for (NSInteger i = 0; i < [mutArray1 count]; i++) {
NSMutableDictionary *b = [[NSMutableDictionary alloc] init];
for (NSDictionary *dict in mutArray) {
if ([[mutArray1 objectAtIndex:i] isEqualToString:[dict valueForKey:#"AssetClassName"]]) {
NSMutableDictionary *a = [[NSMutableDictionary alloc] init];
[a setObject:[dict objectForKey: #"SubAssetClassName"] forKey:#"Investment Categories"];
[a setObject:[dict valueForKey:#"Amount"] forKey:#"Amount (EUR)"];
[a setObject:[dict valueForKey:#"AllocationPercentage"] forKey:#"%"];
[a setObject:[dict valueForKey:#"ModelAllocationPercentage"] forKey:#"ModelAllocationPercentage"];
[b setObject:a forKey:[dict valueForKey:#"SubAssetClassName"]];
[mutdict setObject:b forKey:[dict valueForKey:#"AssetClassName"]];
}
}
}
Also, in most cases you should not be using valueForKey:. Use objectForKey: unless you have a clear and specific need to use key-value coding instead of simply getting an object from the dictionary for a given key.
Related
Here's my dictionary:
Birthdate = "01-01-0001";
CareerField = 3;
Gender = 2;
"Interests[0].UserProfileId" = 19594;
"Interests[0].UserSurveyId" = 1;
SocialStatus = 2;
Studies = 3;
But I want the Interests key to be without "".Like that:
Birthdate = "01-01-0001";
CareerField = 3;
Gender = 2;
Interests[0].UserProfileId = 19594;
Interests[0].UserSurveyId = 1;
SocialStatus = 2;
Studies = 3;
UPDATE:
Interests i must send them like array.
[dict setObject:self.birthdayDate forKey:#"Birthdate"]
[dict setObject:#(self.occupationPickerRow + 1) forKey:#"CareerField"];
for (int i = 0; i < [interestsArray count]; i++) {
NSString *stringSurveyId = [NSString stringWithFormat:#"%#%d%#", #"Interests[", indexCount, #"].UserSurveyId"];
NSString *stringUserProfileId = [NSString stringWithFormat:#"%#%d%#", #"Interests[", indexCount, #"].UserProfileId"];
[dict setObject:[interestsArray objectAtIndex:i] forKey:stringSurveyId];
[dict setObject:#([[[MZEngine sharedInstance] currentUserModel] userId]) forKey:stringUserProfileId];
indexCount++;
}
I need to convert an NSMutableArray to an NSArray from JSON. I loaded the JSON and put it in an NSMutableArray.
NSMutableArray *banner = [[NSMutableArray alloc] init];
banner = [responseObject objectForKey:#"banner"];
This is test for loop:
for(int i = 0; i < [slider count]; i++) {
NSLog(#"%#", [[banner objectAtIndex:i] objectForKey:#"resim"]); }
This is log from the JSON:
(
{
id = 1;
resim = "http://localhost/sample_Files/banner_api/1.jpg";
},
{
id = 2;
resim = "http://localhost/sample_Files/banner_api/2.jpg";
},
{
id = 3;
resim = "http://localhost/sample_Files/banner_api/3.jpg";
}
)
I want to set all of this to be like the below NSArray:
NSArray *allImages = #[#"http://localhost/sample_Files/banner_api/1.jpg",#"http://localhost/sample_Files/banner_api/2.jpg",#"http://localhost/sample_Files/banner_api/3.jpg"];
How can I do this?
NSMutableArray * muArr = [NSMutableArray new];
for(NSDictionary * dict in yourMuArr) {
[muArr addObject:dict[#"resim"]];
}
NSArray * allImages = [NSArray arrayWithArray:muArr];
Hi I would like to know how to do when you click a button it will add a new object in the array and it will not affect the other objects like this:
here is my code:
x = x + 1;
dictData = [[NSMutableDictionary alloc] init];
for (int i = 0; i < x; i++) {
[dictData setObject:[menuData itemName] forKey:#"dishName"];
[dictData setObject:#"1" forKey:#"quantity"];
[dictData setObject:[menuData itemPrice] forKey:#"price"];
[arrMut addObject:dictData];
}
This is the current output
{
name = charles1;
},{
name = charles1;
}
This is the expected output
{
name = charles1;
},{
name = charles2;
}
because you are adding a same dictionary
change it to
for (int i = 0; i < x; i++) {
dictData = [[NSMutableDictionary alloc] init]; // move this line to inside of the loop
[dictData setObject:[menuData itemName] forKey:#"dishName"];
[dictData setObject:#"1" forKey:#"quantity"];
[dictData setObject:[menuData itemPrice] forKey:#"price"];
[arrMut addObject:dictData];
}
or
for (int i = 0; i < x; i++) {
[arrMut addObject:[#{#"dishName" : [menuData itemName],
#"quantity" : #"1",
#"price" : [menuData itemPrice],
} mutableCopy]];
}
The [menuData itemName] method seems to be returning the same object everytime.
You could insert menuData objects in an array and then access a menuData object on each iteration of the for loop.
NSMutableArray *arrMenuData = //This array should contain the menuData objects
for (int i = 0; i < x; i++) {
dictData = [[NSMutableDictionary alloc] init]; // move this line to inside of the loop
[dictData setObject:[[arrMenuData objectAtIndex:i] itemName] forKey:#"dishName"]; //A typecast to menuData type may be required, please test.
[dictData setObject:#"1" forKey:#"quantity"];
[dictData setObject:[[arrMenuData objectAtIndex:i] itemPrice] forKey:#"price"];
[arrMut addObject:dictData];
}
I have a UITableView with custom cellView populated with an array (cf. functs) without section. My goal is to create a search bar (which is ok) with a list index (which is the problem).
After reading a lot of documentations, I plan to use these three methods: "numberOfSectionsInTableView", "sectionIndexTitlesForTableView" and "sectionForSectionIndexTitle"
How to create the NSDictionnary of functs array with the following structure?
//in viewDidLoad
// Initialize the functs array
Funct *funct1 = [Funct new];
funct1.name = #"AAA";
funct1.detail = #"detail1...";
funct1.image = #"a.jpg";
Funct *funct2 = [Funct new];
funct2.name = #"BBB";
funct2.prepTime = #"detail2...";
funct2.image = #"b.jpg";
functs = [NSArray arrayWithObjects:funct, funct2, nil]; //etc.
//For Index list: one section per letter
NSString *letters = #"a b c d e f g h i j k l m n o p q r s t u v w x y z";
self.indexTitlesArray = [letters componentsSeparatedByString:#" "];
Thanks in advance
Here you have a good tutorial with example project. It´s what you are looking for.
It´s an example for TableView indexed, but it has a good example for sections and rows
There is in this example this method very useful for you
static NSString *letters = #"abcdefghijklmnopqrstuvwxyz";
// This method returns an array of dictionaries where each key is a letter
// and each value is a group of words corresponding to the letter.
+ (NSArray *) wordsFromLetters {
NSMutableArray *content = [NSMutableArray new];
for (int i = 0; i < [letters length]; i++ ) {
NSMutableDictionary *row = [[[NSMutableDictionary alloc] init] autorelease];
char currentWord[WORD_LENGTH + 1];
NSMutableArray *words = [[[NSMutableArray alloc] init] autorelease];
for (int j = 0; j < WORD_LENGTH; j++ ) {
if (j == 0) {
currentWord[j] = toupper([letters characterAtIndex:i]);
}
else {
currentWord[j] = [letters characterAtIndex:i];
}
currentWord[j+1] = '\0';
[words addObject:[NSString stringWithCString:currentWord encoding:NSASCIIStringEncoding]];
}
char currentLetter[2] = { toupper([letters characterAtIndex:i]), '\0'};
[row setValue:[NSString stringWithCString:currentLetter encoding:NSASCIIStringEncoding]
forKey:#"headerTitle"];
[row setValue:words forKey:#"rowValues"];
[content addObject:row];
}
return content;
}
You can take the main idea from this resource, but if you prefer, I adapted the code. I think works fine
NSMutableArray *funcsArray = [NSMutableArray array];//Here you add all your functs objects
[funcsArray addObjects: funct1, funct2...];
NSSortDescriptor *sortDescriptor;
sortDescriptor = [[[NSSortDescriptor alloc] initWithKey:#"name"
ascending:YES selector:#selector(localizedCaseInsensitiveCompare:)] autorelease];
NSArray *sortDescriptors = [NSArray arrayWithObject:sortDescriptor];
NSArray *sortedArray;
sortedArray = [funcsArray sortedArrayUsingDescriptors:sortDescriptors];
NSMutableArray *funcsArrayOrdered = [NSMutableArray array];//Here you add all your functs objects
NSMutableArray *funcsIndexed = [NSMutableArray array];
NSMutableArray *letters = [NSMutableArray array];
NSString *currentLetter = nil;
int numItems = [funcsArrayOrdered count];
for (Funct *functObj in funcsArrayOrdered) {
NSLog(#"funct: %#", functObj.name);
numItems--;
NSString *string = userT.name;
if (string.length > 0) {
NSString *letter = [[string substringToIndex:1] uppercaseString];
if ([currentLetter length] == 0) {
currentLetter = letter;
}
if (![letter isEqualToString:currentLetter] || numItems == 0) {
if ([letter isEqualToString:currentLetter] && numItems == 0) {
[letters addObject:functObj];
NSMutableDictionary *dic = [NSMutableDictionary dictionary];
[dic setValue:currentLetter forKey:#"headerTitle"];
[dic setValue:letters forKey:#"rowValues"];
[funcsIndexed addObject:dic];
letters = [NSMutableArray array];
}else{
NSMutableDictionary *dic = [NSMutableDictionary dictionary];
[dic setValue:currentLetter forKey:#"headerTitle"];
[dic setValue:letters forKey:#"rowValues"];
[funcsIndexed addObject:dic];
letters = [NSMutableArray array];
[letters addObject:functObj];
currentLetter = letter;
if (numItems == 0 && [funcsArrayOrdered count] > 1) {
NSMutableDictionary *dic = [NSMutableDictionary dictionary];
[dic setValue:currentLetter forKey:#"headerTitle"];
[dic setValue:letters forKey:#"rowValues"];
[funcsIndexed addObject:dic];
}
}
}else {
[letters addObject:functObj];
}
}
}
Now you will have your array of Dictionaries ordered in funcsIndexed
I would like to create an array for iOS platform like the PHP syntax below, many thanks ~~
$createArray = array ();
for ($i = 0; $i<10; $i++) {
$createArray[$i]['name'] = $name;
$createArray[$i]['age'] = $age;
}
Save your values in NSDictionary and add that dictionary into your array
NSMutableArray *theArray = [NSMutableArray array];
for (int indexValue = 0; indexValue<10; indexValue++) {
NSMutableDictionary *theDictionary = [[NSMutableDictionary alloc] init];
[theDictionary setObject:name forKey:#"name"];
[theDictionary setObject:age forKey:#"age"];
[theArray addObject:theDictionary]
}
While Retrieving time,
NSString *name = [[theArray objectAtIndex:indexValue] objectForKey:#"name"];
NSString *age = [[theArray objectAtIndex:indexValue] objectForKey:#"age"];
you might find it helpful:
array = [[NSMutableArray alloc] init];
for (int i = 0; i < 8; i++) {
NSMutableArray *subArray = [[NSMutableArray alloc] init];
for (int j = 0; j < 8; j++) {
[subArray addObject:[NSNumber numberWithInt:0]];
}
[array addObject:subArray];
[subArray release];
}
also check this question
Try this.
array = [[NSMutableArray alloc] init];
for (int i = 0; i < 10; i++) {
NSMutableArray *subArray = [[NSMutableArray alloc] init];
for (int j = 0; j < 2; j++) {
//Do your Stuff
// [subArray addObject:name];
// [subArray addObject:Age];
}
[array addObject:subArray];
}
OR
Why can't try with the NSDictionary
You can use this. But this is not better way in IOS.
NSMutableArray *array[20];
for (int i=0;i< 20; i++)
{
array[i] = [NSMutableArray array];
for (int j=0;j<3;j++)
{
NSMutableDictionary *theDictionary = [[NSMutableDictionary alloc] init];
[theDictionary setObject:name forKey:#"name"];
[theDictionary setObject:age forKey:#"age"];
[[array[i] addObject:theDictionary]
}
}
First you to have set An NSMutableDictionary on .h file
#interface MSRCommonLogic : NSObject
{
NSMutableDictionary *twoDimensionArray;
}
then have to use following functions in .m file
- (void)setValuesToArray :(int)rows cols:(int) col value:(id)value
{
if(!twoDimensionArray)
{
twoDimensionArray =[[NSMutableDictionary alloc]init];
}
NSString *strKey=[NSString stringWithFormat:#"%dVs%d",rows,col];
[twoDimensionArray setObject:value forKey:strKey];
}
- (id)getValueFromArray :(int)rows cols:(int) col
{
NSString *strKey=[NSString stringWithFormat:#"%dVs%d",rows,col];
return [twoDimensionArray valueForKey:strKey];
}