I am getting data using this way from i want that i should display date in section title
and the event location in rows which are in appDelegate.book1 array. when this roop runs first then in first section it must show 7 rows in one section and same like that as come but i am not getting required
NSArray *activitiesArray;
for (int j=0;j<10; j++) {
NSDictionary *dictOne = [results objectAtIndex:j];
NSLog(#"%# - %#", [dictOne objectForKey:#"date"]);
Date *aDate = [[Date alloc] initWithDictionary:[results objectAtIndex:j]];
[appDelegate.dates addObject:aDate];
[aDate release];
activitiesArray = [dictOne objectForKey:#"events"];
for (int i=0; i<[activitiesArray count]; i++) {
int testcount =[activitiesArray count];
NSDictionary *dictTwo = [activitiesArray objectAtIndex:i];
NSDictionary *eventDict=[dictTwo objectForKey:#"event"];
// NSLog(#"%# - %#", [dictOne objectForKey:#"date"]);
// NSLog(#"%# - %#", [dictTwo objectForKey:#"affectedDate"]);
// NSLog(#"%# - %#", [eventDict objectForKey:#"location"]);
NSInteger*date=[dictTwo objectForKey:#"affectedDate"];
NSInteger*affectedDate=[dictTwo objectForKey:#"affectedDate"];
NSString*appId =[eventDict objectForKey:#"appId"];
NSString*eventId=[eventDict objectForKey:#"eventId"];
NSString*location=[eventDict objectForKey:#"location"];
NSString*municipality=[eventDict objectForKey:#"municipality"];
NSString*title=[eventDict objectForKey:#"title"];
Book1 *aBook=[[Book1 alloc] initWithDate:date affectedDate:affectedDate location:location municipality:municipality title:title];
[appDelegate.books1 addObject:aBook];
int count=[appDelegate.books1 count];
}
}
this is the NSLog of count of appDelegate.book1
The value of integer num is 1
2011-08-09 12:40:31.731 FVN[2409:207] The value of integer num is 2
2011-08-09 12:40:31.731 FVN[2409:207] The value of integer num is 3
2011-08-09 12:40:31.731 FVN[2409:207] The value of integer num is 4
2011-08-09 12:40:31.732 FVN[2409:207] The value of integer num is 5
2011-08-09 12:40:31.732 FVN[2409:207] The value of integer num is 6
2011-08-09 12:40:31.733 FVN[2409:207] The value of integer num is 7
so like this array my table view should show 7 items in first section adn like wise above as they are in sequence so how to do this
I think you are looking for the following two delegate methods in your Table view controller subclass.
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 2; //return the actual number of sections you want
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
// Return the number of rows in the section.
if(section == 0)
return 7; //actually return your array1's count
if(section == 1)
return 9; //actually return your array2's count
}
HTH,
Akshay
Related
I have an NSArray of custom objects.
Each object contains one integer value for ex. 1,2,3,4
Now I want to sort Array like below
9 7 5 3 1 2 4 6 8
Could some one help me?
Here is your answer.
Hope your first array is in sorted order (ascending) if not then you need to sort it first.
NSMutableArray *myArray = [NSMutableArray array];
//Populate your array with custom objects. I had created my own which contain an integer type property.
[myArray addObject:[[myObject alloc] initWithId:11 objectName:#"K"]];
[myArray addObject:[[myObject alloc] initWithId:3 objectName:#"C"]];
[myArray addObject:[[myObject alloc] initWithId:4 objectName:#"D"]];
....
...
.... and so on
then sort it in Ascending order. You can do it Descending also but then you need to change the below logic little bit. I showing with Ascending order.
NSArray *tempArray = [myArray sortedArrayUsingComparator:^NSComparisonResult(myObject *obj1, myObject *obj2) {
if([obj1 objectId] > [obj2 objectId]) return NSOrderedDescending;
else if([obj1 objectId] < [obj2 objectId]) return NSOrderedAscending;
else return NSOrderedSame;
}];
Now sort them as per your requirement
NSMutableArray *finalArray = [NSMutableArray arrayWithArray:tempArray];
NSInteger totalObjects = [tempArray count];
NSInteger centerObjectIndex = totalObjects>>1;
__block NSInteger rightPosition = centerObjectIndex + 1;
__block NSInteger leftPosition = centerObjectIndex - 1;
__block BOOL toggle = NO;
[tempArray enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL *stop) {
if(idx == 0) [finalArray replaceObjectAtIndex:centerObjectIndex withObject:obj];
else
{
if(toggle)
{
if(leftPosition >= 0)
{
[finalArray replaceObjectAtIndex:leftPosition withObject:obj];
leftPosition -= 1;
}
}
else
{
if(rightPosition < totalObjects)
{
[finalArray replaceObjectAtIndex:rightPosition withObject:obj];
rightPosition += 1;
}
}
toggle = !toggle;
}
}];
Here is the final step if your array contains an even numbers of objects
if(!(totalObjects % 2))
{
[finalArray removeObjectAtIndex:0];
[finalArray addObject:[tempArray objectAtIndex:totalObjects-1]];
}
Now you are at end. Your array named finalArray get sorted as per your requirement.
Yes there are so many question ask on stack overflow on similar title of question. I read those all but i never see my problem equivalent to them.
Now my problem is if when i update table section 0 having 3 rows on click of headerview on section 0 and then again i click on same header for delete all 3 rows from the section 0, this work fine with me. But if i open(update section 0 with 3 rows) and then i click on another header section (another section i want to open then after 0th section) my application crashed. I mean i want to if i click other section then my other section should have open and previous open section should have to close. see my code for insertion and deletion sections and rows,
-(void)sectionHeaderView:(TableHeaderView*)sectionHeaderView sectionOpened:(NSInteger)section{
self.sectionOpen = YES;
//Create an array containing data of rows and section which to be inserted in tableView.
NSMutableArray *dataInsertArray = [NSMutableArray arrayWithArray:[self.tableDataSourceDictionary objectForKey: [self.sortedKeys objectAtIndex:section]]];
NSInteger countOfRowsToInsert = [dataInsertArray count];
NSMutableArray *indexPathsToInsert = [[NSMutableArray alloc] init];
for (NSInteger i = 0; i < countOfRowsToInsert; i++) {
[indexPathsToInsert addObject:[NSIndexPath indexPathForRow:i inSection:section]];
}
[self.tableContents setObject:dataInsertArray forKey:[self.sortedKeys objectAtIndex:section]];
//Create an array containing data of rows and section which to be delete from tableView.
NSMutableArray *indexPathsToDelete = [[NSMutableArray alloc] init];
NSInteger previousOpenSectionIndex = self.openSectionIndex;
if (previousOpenSectionIndex != NSNotFound ) {
self.sectionOpen = NO;
[previousTableHeader toggleOpenWithUserAction:NO];
NSInteger countOfRowsToDelete = [[self.tableContents objectForKey: [self.sortedKeys objectAtIndex:section]] count];
for (NSInteger i = 0; i < countOfRowsToDelete; i++) {
[indexPathsToDelete addObject:[NSIndexPath indexPathForRow:i inSection:previousOpenSectionIndex]];
}
[self.tableContents removeObjectForKey:[self.sortedKeys objectAtIndex:previousOpenSectionIndex]];
}
// Apply the updates.
[self.tableView beginUpdates];
[self.tableView deleteRowsAtIndexPaths:indexPathsToDelete withRowAnimation:UITableViewRowAnimationFade];
[self.tableView insertRowsAtIndexPaths:indexPathsToInsert withRowAnimation:UITableViewRowAnimationFade];
[self.tableView endUpdates];
self.openSectionIndex = section;
self.previousTableHeader = sectionHeaderView;
}
And my data-source methods,
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView{
NSInteger numberOfSection = [self.sortedKeys count];
return numberOfSection;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
NSArray *listData =[self.tableContents objectForKey: [self.sortedKeys objectAtIndex:section]];
NSInteger numberOfRows = [listData count];
return numberOfRows;
}
My crash report,
Assertion failure in -[UITableView _endCellAnimationsWithContext:], /SourceCache/UIKit_Sim/UIKit-2372/UITableView.m:1070
2013-02-18 11:44:49.343 ManageId[1029:c07] Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Invalid update: invalid number of rows in section 0. The number of rows contained in an existing section after the update (0) must be equal to the number of rows contained in that section before the update (3), plus or minus the number of rows inserted or deleted from that section (0 inserted, 1 deleted) and plus or minus the number of rows moved into or out of that section (0 moved in, 0 moved out).'
Simply Suppose my 2 sections has contain 3 - 3 rows then it will worked file But if 2 sections contain 3 - 2 rows then it crash. I want to toggle two sections click on updating header of section with inconsistent numbers of rows in those sections.
Than
I found that please replace that code in your code with that code. you have to delete data with old one index not with current one....
the commented line was yours please check that...
if (previousOpenSectionIndex != NSNotFound){
self.sectionOpen = NO;
[previousTableHeader toggleOpenWithUserAction:NO];
//NSInteger countOfRowsToDelete = [[self.tableContents objectForKey: [self.sortedKeys objectAtIndex:section]] count];
NSInteger countOfRowsToDelete = [[self.tableContents objectForKey: [self.sortedKeys objectAtIndex:previousOpenSectionIndex]] count];
for (NSInteger i = 0; i < countOfRowsToDelete; i++) {
[indexPathsToDelete addObject:[NSIndexPath indexPathForRow:i inSection:previousOpenSectionIndex]];
}
[[self.tableContents objectForKey: [self.sortedKeys objectAtIndex:previousOpenSectionIndex]] removeAllObjects];
}
Hello I have created one of my application in which i have implemented sorting functionality in a table view The sorting method is working fine on iOS 4 and 5 but when I try to test the application on iOS 6, it shows an error in the sorting method on iOS 6
Please help
Method :-
-(void)setupIndexData{
self.arrayOfCharacters =[[NSMutableArray alloc]init];
self.objectForCharacter=[[NSMutableDictionary alloc]init];
NSNumberFormatter *formatter =[[NSNumberFormatter alloc]init];
NSMutableArray *arrayOfNames =[[NSMutableArray alloc]init];
NSString *numbericSection = #"#";
NSString *firstLetter;
for (NSDictionary *item in self.mCompanyarray) {
firstLetter = [[[item valueForKey:#"Company"]description] substringToIndex:1];
// Check if it's NOT a number
if ([formatter numberFromString:firstLetter] == nil) {
/**
* If the letter doesn't exist in the dictionary go ahead and add it the
* dictionary.
*
* ::IMPORTANT::
* You HAVE to removeAllObjects from the arrayOfNames or you will have an N + 1
* problem. Let's say that start with the A's, well once you hit the
* B's then in your table you will the A's and B's for the B's section. Once
* you hit the C's you will all the A's, B's, and C's, etc.
*/
if (![objectForCharacter objectForKey:firstLetter]) {
[arrayOfNames removeAllObjects];
[arrayOfCharacters addObject:firstLetter];
}
[arrayOfNames addObject:item];
/**
* Need to autorelease the copy to preven potential leak. Even though the
* arrayOfNames is released below it still has a retain count of +1
*/
[objectForCharacter setObject:[[arrayOfNames copy] autorelease] forKey:firstLetter];
} else {
if (![objectForCharacter objectForKey:numbericSection]) {
[arrayOfNames removeAllObjects];
[arrayOfCharacters addObject:numbericSection];
}
[arrayOfNames addObject:item];
[objectForCharacter setObject:[[arrayOfNames copy] autorelease] forKey:numbericSection];
}
}
[formatter release];
[arrayOfNames release];
[self.mCompaniesTableView reloadData];
}
Thanks
I'd use UILocalizedIndexedCollation to sort and index your data. That way, your app can support multiple languages etc.
Note: I haven't tested the code below, but the theory is there.
First, create a #property to store the indexed data:
#property (nonatomic, strong) NSDictionary *indexedSections;
Set up your table like this:
- (NSArray *)sectionIndexTitlesForTableView:(UITableView *)tableView
{
return [[UILocalizedIndexedCollation currentCollation] sectionIndexTitles];
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
//we use sectionTitles and not sections
return [[[UILocalizedIndexedCollation currentCollation] sectionTitles] count];
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [[self.indexedSections objectForKey:[NSNumber numberWithInteger:section]] count];
}
- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section
{
BOOL showSection = [[self.indexedSections objectForKey:[NSNumber numberWithInteger:section] count] != 0;
//only show the section title if there are rows in the section
return (showSection) ? [[[UILocalizedIndexedCollation currentCollation] sectionTitles] objectAtIndex:section] : nil;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
id object = [[self.indexedSections objectForKey:[NSNumber numberWithInteger:indexPath.section]] objectAtIndex:indexPath.row];
// configure the cell
}
- (NSInteger)tableView:(UITableView *)tableView sectionForSectionIndexTitle:(NSString *)title atIndex:(NSInteger)index
{
//sectionForSectionIndexTitleAtIndex: is a bit buggy, but is still useable
return [[UILocalizedIndexedCollation currentCollation] sectionForSectionIndexTitleAtIndex:index];
}
And finally index like this:
- (void) setupIndexData
{
// asynchronously sort
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^
{
// create a dictionary to store an array of objects for each section
NSMutableDictionary *tempSections = [NSMutableDictionary dictionary];
// iterate through each dictionaey in the list, and put them into the correct section
for (NSDictionary *item in self.mCompanyarray)
{
// get the index of the section (Assuming the table index is showing A-#)
NSInteger indexName = [[UILocalizedIndexedCollation currentCollation] sectionForObject:[item valueForKey:#"Company"] collationStringSelector:#selector(description)];
NSNumber *keyName = [NSNumber numberWithInteger:indexName];
// if an array doesnt exist for the key, create one
NSMutableArray *arrayName = [tempSections objectForKey:keyName];
if (arrayName == nil)
{
arrayName = [NSMutableArray array];
}
// add the dictionary to the array (add the actual value as we need this object to sort the array later)
[arrayName addObject:[item valueForKey:#"Company"]];
// put the array with new object in, back into the dictionary for the correct key
[tempSections setObject:arrayName forKey:keyName];
}
/* now to do the sorting of each index */
NSMutableDictionary *sortedSections = [NSMutableDictionary dictionary];
// sort each index array (A..Z)
[tempSections enumerateKeysAndObjectsUsingBlock:^(id key, id array, BOOL *stop)
{
// sort the array - again, we need to tell it which selctor to sort each object by
NSArray *sortedArray = [[UILocalizedIndexedCollation currentCollation] sortedArrayFromArray:array collationStringSelector:#selector(description)];
[sortedSections setObject:[NSMutableArray arrayWithArray:sortedArray] forKey:key];
}];
// set the global sectioned dictionary
self.indexedSections = sortedSections;
dispatch_async(dispatch_get_main_queue() ,^{
// reload the table view (on the main thread)
[self.mCompaniesTableView reloadData];
});
});
}
NSMutableArray*array = [[NSMutableArray alloc]init];
NSArray*Somearray = [NSArray arrayWithObjects:1st Object,2ndObject,3rd Object,4th object,5th Object,nil];
In the above array 1st Object,2ndObject,3rd Object,4th object,5th Object having val,content,conclusion in each index.
for(int i=0;i<[Somearray count];i++)
{
______________
Here the code is there to give each index ,that is having val,content,conclusion ..
After that val,content,conclusion in each index will be add to Dict..
____________
NSDictionary *Dict = [NSDictionary dictionaryWithObjectsAndKeys:val,#"val",content,#"content",conclusion,#"conclusion",nil];
//Each time adding dictionary into array;
[array addObject:Dict];
}
The above Dictionary is in for loop and the keyvalue pairs will be add 5 times(Somearray Count).Now array is having in
array = [{val="1.1 this is first one",content="This is the content of 0th index",conclusion="this is the conclusion of 0th index"},{val="1.2 this is first one",content="This is the content of 1st index",conclusion="this is the conclusion of 1st index"},____,____,______,{val="1.5 this is first one",content="This is the content of 4th index",conclusion="this is the conclusion of 4th index"},nil];
Now i am having NSString*string = #"1.5";
Now i need the index where val is having 1.5 in it.How to send the str in to array to find the the index.
Can anyone share the code please.
Thanks in advance.
Use method indexOfObject
int inx= [array indexOfObject:#"1.5"];
For Find index particular key value.
int inx;
for (int i=0; i<[array count]; i++) {
if ([[[array objectAtIndex:i] allKeys] containsObject:#"val"]) {
inx=i;
break;
}
}
The method you are looking for is -[NSArray indexOfObjectPassingTest:]. You would use it like this:
NSUInteger i = [array indexOfObjectPassingTest:^(id obj, NSUInteger idx, BOOL *stop) {
return [[id objectForKey:#"val"] rangeOfString:#"1.5"].location != NSNotFound;
}];
If you just want to check that val starts with "1.5" you would use hasPrefix: instead.
Try this -
NSArray *valArray = [array valueForKey:#"val"];
int index = [valArray indexOfObject:#"1.5"];
Appended answer given by Mandeep, to show you the magic of key value coding ;)
NSUInteger idx = UINT_MAX;
NSCharacterSet* spaceSet = [NSCharacterSet whitespaceCharacterSet];
for(int i=0,i_l=[Yourarray count];i<i_l;i++) {
NSString* s_prime = [[Yourarray objectAtIndex:i] valueForKey:#"val"];
if ([s_prime length] < 4) {
continue;
}
NSString *subString = [[s_prime substringToIndex:4] stringByTrimmingCharactersInSet:spaceSet];
// NSLog(#"index %#",s);
if ([subString isEqualToString:secretNumber]){
idx = i;
break;
}
}
if (idx != UINT_MAX) {
// NSLog(#"Found at index: %d",idx);
} else {
// NSLog(#"Not found");
}
I have used a number of grouped tables tied to core data managed objects, where the sectionNameKeyPath value is used to identify the attribute in the data that should be used to denote sections for the table.
But how do I indicate the "sectionNameKeyPath equivalent" when I have a table that is being use to present an NSMutableArray full of objects that look like this:
#interface SimGrade : NSObject {
NSNumber * scoreValue;
NSString * commentInfo;
NSString * catName;
}
I would like to have sections defined according to the "catName" member of the class.
Consider, for example that my mutablearray has 5 entries where the 5 "catName" values are "Blue", "Blue", "Blue", "Red", and "Red". So I'd want the number of sections in the table for that example to be 2.
So, what I would 'like to do' could be represented by the following pseudo-code:
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
// Return the number of sections.
return (The number of unique catNames);
}
Note: My interest in doing this is not so much for displaying separate sections in the table, but rather so that I can more easily calculate the sums of scoreValues for each category.
<<<<< UPDATE >>>>>>>>>
Joshua's help, as documented in his response has been right on. Here are the two new handlers for number of sections and number of rows per section...
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
NSMutableSet *counter = [[NSMutableSet alloc] init];
[tableOfSimGrades enumerateObjectsUsingBlock:^(id object, NSUInteger idx, BOOL *stop) {
[counter addObject:[object catName]];
}];
NSInteger cnt = [counter count];
[counter release];
NSLog(#">>>>> number of sections is -> %d", cnt);
return cnt;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
// Return the number of rows in the section.
NSMutableDictionary *counter = [[NSMutableDictionary alloc] init];
NSMutableArray *cats = [[NSMutableArray alloc] init];
__block NSNumber *countOfElements;
[tableOfSimGrades enumerateObjectsUsingBlock:^(id object, NSUInteger idx, BOOL *stop) {
// check the dictionary for they key, if it's not there we get nil
countOfElements = [counter objectForKey:[object catName]];
if (countOfElements) {
// NSNumbers can't do math, so we use ints.
int curcount = [countOfElements intValue];
curcount++;
[counter setObject:[NSNumber numberWithInt:curcount] forKey:[object catName]];
NSLog(#">>>> adding object %d to dict for cat: %#", curcount, [object catName]);
} else {
[counter setObject:[NSNumber numberWithInt:1] forKey:[object catName]];
[cats addObject:[object catName]];
NSLog(#">>>>> adding initial object to dict for cat: %#", [object catName]);
}
}];
countOfElements = [counter objectForKey:[cats objectAtIndex: section]];
int catcount = [countOfElements intValue];
[counter release];
[cats release];
return catcount;
}
My current issue with this routine now lies in the following function... It is ignorant of any sections in the nsmutableArray and so for each section, it starts at index 0 of the array instead of at the 0th element of the appropriate section.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [self.tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier] autorelease];
}
// Configure the cell...
SimGrade *tmpGrade = [[SimGrade alloc] init];
tmpGrade = [tableOfSimGrades objectAtIndex: indexPath.row];
cell.detailTextLabel.text = [NSString stringWithFormat:#"Category: %#", tmpGrade.catName];
// [tmpGrade release];
return cell;
}
How do I transform the "indexpath" sent to this routine into the appropriate section of the mutableArray?
Thanks,
Phil
You could do something like this:
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
NSMutableSet *counter = [[NSMutableSet alloc] init];
[arrayOfSims enumerateObjectsUsingBlock:^(id object, NSUInteger idx, BOOL *stop) {
[counter addObject:object.catName];
}];
NSInteger cnt = [counter count];
[counter release];
return cnt;
}
you'd probably want to memoize that, for performance reasons (but only after profiling it).
--- EDIT ---
You can use an NSMutableDictionary, too, to get counts of individual categories.
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
NSMutableDictionary *counter = [[NSMutableDictionary alloc] init];
__block NSNumber *countOfElements;
[arrayOfSims enumerateObjectsUsingBlock:^(id object, NSUInteger idx, BOOL *stop) {
// check the dictionary for they key, if it's not there we get nil
countOfElements = [counter objectForKey:object.catName];
if (countOfElements) {
// NSNumbers can't do math, so we use ints.
int curcount = [countOfElements intValue];
curcount++;
[counter setObject:[NSNumber numberWithInt:curcount] forKey:object.catName];
} else {
[counter setObject:[NSNumber numberWithInt:1] forKey:object.catName];
}
}];
NSInteger cnt = [counter count];
// we can also get information about each category name, if we choose
[counter release];
return cnt;
}