how to assign a static row at the first and last row of dynamically allocated data in table view - iphone

i m parsing a json file and populating it in my table view what i want to assign is a static row.at the first and last row of my tableview named as Var tycker du. but doing so.it overlaps the dynamically allocated data from json file..could you guys help me out below is the code.
static NSString * const kCellTextKey = #"CellTextKey";
static NSString * const kCellStateKey = #"CellStateKey";
static NSString* kAppId = #"126013844184727";
#define KFBAccessToken #"126013844184727"
#define KFBExpirationDate #"KFBExpirationDate"
#implementation Tab5
#synthesize tableview1,jsonData,jsonArray,story,media1,url,descriptiondesc,media2;
#synthesize arForIPs = _arForIPs;
- (void)viewDidLoad {
[super viewDidLoad];
objMan = [[HJObjManager alloc] initWithLoadingBufferSize:6 memCacheSize:20];
self.arForIPs=[NSMutableArray array];
self.tableview1.backgroundColor=[UIColor clearColor];
[self.tableview1 setAllowsSelectionDuringEditing:TRUE];
jsonurl=[NSURL URLWithString:#"http://dev-parkguiden.knutpunkten.se/Api/GetPark? parkid=3"];
NSURLRequest *request = [NSURLRequest requestWithURL:jsonurl cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:60.0];
connection1=[[[NSURLConnection alloc] initWithRequest:request delegate:self] autorelease];
self.jsonData=[NSData dataWithContentsOfURL:jsonurl];
NSDictionary *items=[NSJSONSerialization JSONObjectWithData:self.jsonData options:NSJSONReadingMutableLeaves error:nil];
items1 = [items objectForKey:#"ThingsTodo"];
story = [[NSMutableArray array]retain];
media1 = [[NSMutableArray array]retain];
url=[[NSMutableArray array]retain];
media2=[[NSMutableArray array]retain];
descriptiondesc=[[NSMutableArray array]retain];
dog=[[NSMutableArray array]retain];
arr=[[NSMutableArray array]retain];
bose=[[NSMutableArray array]retain];
for (NSDictionary *item in items1)
{
[self.story addObject:[item objectForKey:#"Name"]];
[self.media1 addObject:[item objectForKey:#"Status"]];
//[self.media2 addObject:[item objectForKey:#"Image"]];
}
//NSLog(#"room:%#",items1);
[self makeNewArray];
}
-(void)makeNewArray
{
for ( int i=0; i<[self.media1 count]; i++)
{
NSDictionary *boy=[self.media1 objectAtIndex:i];
NSString *str=[[NSString alloc]initWithFormat:#"%#",boy];
//NSLog(#"the value:%#",str);
if([str isEqualToString:#"1"])
{
text = [self.story objectAtIndex:i];
NSString *text1 = [NSString stringWithFormat:#"%#",text];
NSNumber *state = [NSNumber numberWithBool:NO];
dict=[NSDictionary dictionaryWithObjectsAndKeys:text1,kCellTextKey,state,kCellStateKey,nil];
[arr addObject:dict];
// [dog addObject:[self.story objectAtIndex:i]];
}
dog=[arr mutableCopy];
NSLog(#"wat hav i got:%#",arr);
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [dog count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath: (NSIndexPath *)indexPath {
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease]; }
// cell.textLabel.text=[dog objectAtIndex:indexPath.row];
NSDictionary *rowData = [dog objectAtIndex:indexPath.row];
cell.textLabel.text = [rowData objectForKey:kCellTextKey];
if ([[rowData objectForKey:kCellStateKey] boolValue]) {
cell.accessoryType = UITableViewCellAccessoryCheckmark;
} else {
cell.accessoryType = UITableViewCellAccessoryNone;
[bose removeObject:[newDict valueForKey:#"CellTextKey"]];
// NSLog(#"object going to get removed:%#",bose);
}
sectionRows = [tableview1 numberOfRowsInSection:[indexPath section]];
return cell;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
NSDictionary *dict = [dog objectAtIndex:indexPath.row];
BOOL newState = ![[dict objectForKey:kCellStateKey] boolValue];
newDict = [NSDictionary dictionaryWithObjectsAndKeys:[dict objectForKey:kCellTextKey], kCellTextKey, [NSNumber numberWithBool:newState], kCellStateKey, nil];
[dog replaceObjectAtIndex:indexPath.row withObject:newDict];
[bose addObject:[newDict valueForKey:#"CellTextKey"]];
NSLog(#"the current added data:%#",bose);
[tableView reloadRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationNone];
}
}

hey try out with this solution
-(void)makeNewArray
{
for ( int i=0; i<[self.media1 count]; i++)
{
NSDictionary *boy=[self.media1 objectAtIndex:i];
NSString *str=[[NSString alloc]initWithFormat:#"%#",boy];
//NSLog(#"the value:%#",str);
if([str isEqualToString:#"1"])
{
text = [self.story objectAtIndex:i];
NSString *text1 = [NSString stringWithFormat:#"%#",text];
NSNumber *state = [NSNumber numberWithBool:NO];
dict=[NSDictionary dictionaryWithObjectsAndKeys:text1,kCellTextKey,state,kCellStateKey,nil];
[arr addObject:dict];
// [dog addObject:[self.story objectAtIndex:i]];
}
}
NSDictionary *dict;
dict = [NSDictionary dictionaryWithObjectsAndKeys:
#"Var tycker du", #"CellTextKey",
#"0", #"CellStateKey", nil];
[dog addObject:dict];
for(int i=0; i<arr.count; i++){
[dog addObject:[arr objectAtIndex:i]];
}
[dog addObject:dict];
// dog=[arr mutableCopy];
NSLog(#"wat hav i got:%#",dog);
}

Related

NSArray Values are Display after touche in screen in Tableview

- (void)viewDidLoad {
detailView = [[UITableView alloc] initWithFrame:CGRectMake(0, 0, 330, 380) style:UITableViewStylePlain];
detailView.rowHeight = 55.0f;
detailView.dataSource =self;
detailView.delegate =self;
NSLog(#"finish0");
[self.view addSubview:detailView];
self.title = NSLocalizedString(#"Routes", nil);
self.detailArray = [[NSMutableArray alloc] init];
url = [NSString stringWithFormat:#"http://maps.googleapis.com/maps/api/directions/json?origin=%#&destination=%f,%f&sensor=false",start1,center.latitude,center.longitude];
NSURL *googleRequestURL=[NSURL URLWithString:url];
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
NSData* data = [NSData dataWithContentsOfURL: googleRequestURL];
NSError* error;
NSMutableDictionary* parsedJson = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:&error];
NSArray *allkeys = [parsedJson allKeys];
for(int i = 0; i < allkeys.count; i++){
if([[allkeys objectAtIndex:i] isEqualToString:#"routes"]){
NSArray *arr = [parsedJson objectForKey:#"routes"];
NSDictionary *dic = [arr objectAtIndex:0];
legs = [dic objectForKey:#"legs"];
for(int i = 0; i < legs.count; i++){
NSArray *stepsArr = [[legs objectAtIndex:i] objectForKey:#"steps"];
for (int i = 0; i < stepsArr.count; i++) {
[self.detailArray addObject:[[stepsArr objectAtIndex:i] objectForKey:#"html_instructions"] ];
string = [self.detailArray componentsJoinedByString:#","];
NSLog(#"string%#",string);
[self stringByStrippingHTML];
self.detail=[string componentsSeparatedByString:#","];
[self.detail retain];
[detailView reloadData];
}}}}
});
-(NSInteger) numberOfSectionsInTableView:(UITableView *)tableView{
return 1;
}
-(NSInteger) tableView:(UITableView *)table numberOfRowsInSection:(NSInteger)section{
return [detail count];
NSLog(#"table2");
}
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
NSLog(#"table4");
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
cell.selectionStyle = UITableViewCellSelectionStyleNone;
UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(5.0f, 0.0f, 300.0f, 60.0f)];
label.text=[NSString stringWithFormat:#"%#",[detail objectAtIndex:indexPath.row]];
label.numberOfLines = 3;
label.font = [UIFont fontWithName:#"Helvetica" size:(12.0)];
label.lineBreakMode = UILineBreakModeWordWrap;
label.textAlignment = UITextAlignmentLeft;
[cell.contentView addSubview:label];
[label release];
return cell;
}
-(NSString *) stringByStrippingHTML {
NSRange r;
while ((r = [string rangeOfString:#"<[^>]+>" options:NSRegularExpressionSearch]).location != NSNotFound)
string = [string stringByReplacingCharactersInRange:r withString:#""];
return string;
}
In The coding the values of self.detail(array) display after touches the screen in TableView.i need to display the values immediately when i enter the TableView. please any one help if you know. and tell me why the values of NSArray display only after touch or scroll the tableview.
try this
[self.detailView performSelectorOnMainThread:#selector(reloadData) withObject:nil waitUntilDone:NO];
instead of [detailView reloadData];
You need to reload the table view after you have finished downloading the data and populating your array with the result. That is
url = [NSString stringWithFormat:#"http://maps.googleapis.com/maps/api/directions/json?origin=%#&destination=%f,%f&sensor=false",start1,center.latitude,center.longitude];
NSURL *googleRequestURL=[NSURL URLWithString:url];
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
NSData* data = [NSData dataWithContentsOfURL: googleRequestURL];
NSError* error;
NSMutableDictionary* parsedJson = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:&error];
NSArray *allkeys = [parsedJson allKeys];
for(int i = 0; i < allkeys.count; i++){
if([[allkeys objectAtIndex:i] isEqualToString:#"routes"]){
NSArray *arr = [parsedJson objectForKey:#"routes"];
NSDictionary *dic = [arr objectAtIndex:0];
legs = [dic objectForKey:#"legs"];
for(int i = 0; i < legs.count; i++){
NSArray *stepsArr = [[legs objectAtIndex:i] objectForKey:#"steps"];
for (int i = 0; i < stepsArr.count; i++) {
[self.detailArray addObject:[[stepsArr objectAtIndex:i] objectForKey:#"html_instructions"] ];
string = [self.detailArray componentsJoinedByString:#","];
NSLog(#"string%#",string);
[self stringByStrippingHTML];
self.detail=[string componentsSeparatedByString:#","];
[self.detail retain];
}}}}
[detailView reloadData];
}
Also to explain why the table loads after you scroll the TableView; When you scroll in the table view the delegate method -(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath (among with others) will be called to update the tableview.

Want to display the array values in the table

Table View:
-(NSInteger) numberOfSectionsInTableView:(UITableView *)tableView{
return 1;
}
-(NSInteger) tableView:(UITableView *)table numberOfRowsInSection:(NSInteger)section{
return [self.detailArray count];
}
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
tableView.delegate = self;
UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(10.0f, 5.0f, 300.0f, 30.0f)];
label.text=[NSString stringWithFormat:#"%#",[self.detailArray objectAtIndex:indexPath.row]];
label.numberOfLines = 3;
label.font = [UIFont fontWithName:#"Helvetica" size:(12.0)];
label.lineBreakMode = UILineBreakModeWordWrap;
label.textAlignment = UITextAlignmentLeft;
[cell.contentView addSubview:label];
[label release];
[self.myTableView reloadData];
return cell;
}
I want to store the detail (array value) in the tableView.I used both method numberOfRowsInSection and cellForRowAtIndexPath but the table display null. How can I display?
Make property for NSMutable array in .h
#property (nonatomic,retain) NSMutableArray *detailArray;
and synthesize it in .m
#synthesize detailArray=_detailArray;
and change this line
NSMutableArray *detail=[[stepsArr objectAtIndex:i] objectForKey:#"html_instructions"] ;
to
_detailArray=[[stepsArr objectAtIndex:i] objectForKey:#"html_instructions"] ;
then use _detailArray for displaying table data.
- (NSInteger)tableView:(UITableView *)tableView
numberOfRowsInSection:(NSInteger)section {
return [_detailArray count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView
cellForRowAtIndexPath:(NSIndexPath *)indexPath {
// _detailArray objects for date population.
}
Your Code :
NSString *url = [NSString stringWithFormat:#"http://maps.googleapis.com/maps/api/directions/json?origin=%#&destination=%f,%f&sensor=false",startPoint,midannotation.coordinate.latitude,midannotation.coordinate.longitude];
NSURL *googleRequestURL=[NSURL URLWithString:url];
dispatch_async(kBgQueue, ^{
NSData* data = [NSData dataWithContentsOfURL: googleRequestURL];
NSString *someString = [[NSString alloc] initWithData:data encoding:NSASCIIStringEncoding];
// NSLog(#"data:%#",someString);
NSError* error;
NSMutableDictionary* parsedJson = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:&error];
NSArray *allkeys = [parsedJson allKeys];
for(int i = 0; i < allkeys.count; i++){
if([[allkeys objectAtIndex:i] isEqualToString:#"routes"]){
arr = [parsedJson objectForKey:#"routes"];
dic = [arr objectAtIndex:0];
// NSLog(#"ALL KEYS FROM ROUTE: %#", [dic allKeys]);
legs = [dic objectForKey:#"legs"];
// NSLog(#"legs array count %d", legs.count);
for(int i = 0; i < legs.count; i++){
stepsArr = [[legs objectAtIndex:i] objectForKey:#"steps"];
for (int i = 0; i < stepsArr.count; i++) {
NSLog(#"HTML INSTRUCTION %#", [[stepsArr objectAtIndex:i] objectForKey:#"html_instructions"]);
NSLog(#"############################");
NSMutableArray *detail=[[stepsArr objectAtIndex:i] objectForKey:#"html_instructions"] ;
}
}
}
}
});
first you go to your .h file -->
#property (nonatomic, strong) NSMutableArray * detailsArray;
In .m file -->
#synthesize detailsArray;
replace this code
NSMutableArray *detail=[[stepsArr objectAtIndex:i] objectForKey:#"html_instructions"] ;
by this -->
self.detailsArray = [[stepsArr objectAtIndex:i] objectForKey:#"html_instructions"];
# using table datasource methods
- (NSInteger)tableView:(UITableView *)tableView
numberOfRowsInSection:(NSInteger)section {
return [self.detailsArray count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView
cellForRowAtIndexPath:(NSIndexPath *)indexPath {
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
cell.titleLabel.text = [self.detailsArray objectAtIndex: indexPath.row ];
return cell;
}
}
//Note Please set the delegate method of table , if you write the code programmatically means tableView.delgate = self;
Use this :
self.detaisArray = [[NSMutableArray alloc] init];
// Do any additional setup after loading the view, typically from a nib.
NSString *url = [NSString stringWithFormat:#"http://maps.googleapis.com/maps/api/directions/json?origin=%#&destination=%f,%f&sensor=false",startPoint,midannotation.coordinate.latitude,midannotation.coordinate.longitude];
NSURL *googleRequestURL=[NSURL URLWithString:url];
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
NSData* data = [NSData dataWithContentsOfURL: googleRequestURL];
NSString *someString = [[NSString alloc] initWithData:data encoding:NSASCIIStringEncoding];
// NSLog(#"data:%#",someString);
NSError* error;
NSMutableDictionary* parsedJson = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:&error];
NSArray *allkeys = [parsedJson allKeys];
for(int i = 0; i < allkeys.count; i++){
if([[allkeys objectAtIndex:i] isEqualToString:#"routes"]){
NSArray *arr = [parsedJson objectForKey:#"routes"];
NSDictionary *dic = [arr objectAtIndex:0];
// NSLog(#"ALL KEYS FROM ROUTE: %#", [dic allKeys]);
NSArray *legs = [dic objectForKey:#"legs"];
// NSLog(#"legs array count %d", legs.count);
for(int i = 0; i < legs.count; i++){
NSArray *stepsArr = [[legs objectAtIndex:i] objectForKey:#"steps"];
for (int i = 0; i < stepsArr.count; i++) {
NSLog(#"HTML INSTRUCTION %#", [[stepsArr objectAtIndex:i] objectForKey:#"html_instructions"]);
NSLog(#"############################");
[self.detaisArray addObject:[[stepsArr objectAtIndex:i] objectForKey:#"html_instructions"] ];
if(i == legs.count-1){
self.myTableView = [[UITableView alloc] initWithFrame:CGRectMake(0, 20, 320, 400) style:UITableViewStylePlain];
self.myTableView.delegate = self;
self.myTableView.dataSource = self;
[self.view addSubview:self.myTableView];
}
}
}
}
}
});
first checked you connect your tableview delegate set self...
second checked youn row count pr detailarray cont in numberOfRowsInSection its may b zero
1st Declare Your Array in .h
like this
#property(strong,nonatomic)NSMutableArray * name;
And intialize into .m Init() method
name=[NSMutableArray alloc]initWithObjects:#"a",#"b", nil];
// TableView Delegate Method To Display Array Data into Tableview.
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return name.count; //Give Your Array Name Here.
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
cell.textLabel.text=[NSString stringWithFormat:#"%#",[name objectAtIndex:indexPath.row]];
return cell;
}
Try this code.

array returns null value ,arr = [[tempDict1 valueForKey:#"rates"] componentsSeparatedByString:#";"];

I am having a problem with displaying NSArray values in a UITableView. In my code I am getting nil value.
arr = [[tempDict1 valueForKey:#"rates"] componentsSeparatedByString:#";"];
- (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];
}
uitableview code is below
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
NSLog(#"array-->%#",array);
return [array count];
}
// Customize the appearance of table view cells.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
intIndexPath = indexPath.row;
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil)
{
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
cell.textLabel.adjustsFontSizeToFitWidth = YES;
cell.textLabel.font = [UIFont systemFontOfSize:8];
cell.textLabel.numberOfLines = 4;
}
// NSLog(#"data is like:--> %#",array);
// cell.textLabel.text= [NSString stringWithFormat:#"%#",[array objectAtIndex:intIndexPath]];
cell.textLabel.text =[array objectAtIndex:intIndexPath];
return cell;
}
Look through table view programming guide
https://developer.apple.com/library/ios/#documentation/UserExperience/Conceptual/TableView_iPhone/AboutTableViewsiPhone/AboutTableViewsiPhone.html
You have to implement UITableView delegate methods in your class to fill table view with content.
Also see this:
https://developer.apple.com/library/ios/#documentation/UserExperience/Conceptual/TableView_iPhone/CreateConfigureTableView/CreateConfigureTableView.html#//apple_ref/doc/uid/TP40007451-CH6-SW10
Here is code:
//this is your dictionary:
self.values = [[[NSMutableDictionary alloc] init] autorelease];
//filled it with values:
[self.values setObject:#"201" forKey:#"ams"];
[self.values setObject:#"500.50" forKey:#"hyd"];
[self.values setObject:#"200.10" forKey:#"guj"];
[self.values setObject:#"400" forKey:#"afgd"];
//now get an array of keys out of it. Can do it anywehe... For example in connectionDidFinishLoading method
self.keys = [[[NSArray alloc] initWithArray:[values allKeys]] autorelease];
Now cellForRoAtIndexPath method:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil)
{
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
cell.textLabel.adjustsFontSizeToFitWidth = YES;
cell.textLabel.font = [UIFont systemFontOfSize:8];
cell.textLabel.numberOfLines = 4;
}
NSString *currentKey = [self.keys objectAtIndex:indexPath.row];
NSString *currentValue = [self.values objectForKey:currentKey];
NSString *cellText = [NSString stringWithFormat:#"%#:%#", currentKey, currentValue];
cell.textLabel.text = cellText;
return cell;
}
It worked on my machine..

displaying JSON data in Tableview in iphone

below is the JSON i want to parse it in such a way that for e.g date 1st should all events in that section of table and 2nd date should show all related events in another section
I am parsing using below code but i am not getting required sequence
SBJsonParser *parser= [[SBJsonParser alloc] init];
NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:#"http://www.krsconnect.no/community/api.html?method=bareListEventsByCategory&appid=620&category-selected=350&counties-selected=Vest-Agder,Aust-Agder"]];
NSData *response = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
NSString *json_string = [[NSString alloc] initWithData:response encoding:NSUTF8StringEncoding];
NSDictionary *object = [parser objectWithString:json_string error:nil];
NSArray *results = [parser objectWithString:json_string error:nil];
appDelegate.books1 = [[NSMutableArray alloc] init];
appDelegate.dates =[[NSMutableArray alloc]init];
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];
}
for (int i=0; i<10; i++) {
NSDictionary *dictOne = [results objectAtIndex:i];
NSArray *activitiesArray = [dictOne objectForKey:#"events"];
NSDictionary *dictTwo = [activitiesArray objectAtIndex:i];
NSDictionary *eventDict=[dictTwo objectForKey:#"event"];
// NSLog(#"%# - %#", [dictOne objectForKey:#"date"]);
// NSLog(#"%# - %#", [dictTwo objectForKey:#"affectedDate"]);
// NSLog(#"%# - %#", [eventDict objectForKey:#"location"]);
NSInteger*date=[dictOne objectForKey:#"date"];
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];
}
the json format is given below
http://www.krsconnect.no/community/api.html?method=bareListEventsByCategory&appid=620&category-selected=350&counties-selected=Vest-Agder,Aust-Agder
You need to aggregate your data in some different way.
Here is how I'd do that:
...
// why do you parse your json string two times?
//NSDictionary *object = [parser objectWithString:json_string error:nil];
NSArray *results = [parser objectWithString:json_string error:nil];
// You have memory leak here. I assume that books1 and dates are both properties with "retain" flag set.
//appDelegate.books1 = [[NSMutableArray alloc] init];
//appDelegate.dates =[[NSMutableArray alloc]init];
NSMutableArray *data = [NSMutableArray array]
self.data = data;
// check that what we've parsed is NSArray
if (results && [results isKindOfClass:[NSArray class]]) {
for (NSDictionary *sectionDict in results) {
if ([sectionDict isKindOfClass:[NSDictionary class]]) {
NSString *sectionTitle = [[sectionDict objectForKey:#"date"] description];
NSArray *events = [sectionDict objectForKey:#"events"];
if (date && events && [events isKindOfClass:[NSArray class]]) {
NSMutableArray *rows = [NSMutableArray arrayWithCapacity:[events count]];
for (NSDictionary *eventDict in events) {
if ([eventDict isKindOfClass:[NSDictionary class]]) {
[rows addObject:#"testRow"];
}
}
[data addObject:[NSDictionary dictionaryWithObjectsAndKeys: sectionTitle, #"section", rows, #"rows", nil]];
}
}
}
}
- (NSInteger) numberOfSectionsInTableView:(UITableView *)tblView {
return [data count];
}
- (NSInteger) tableView:(UITableView *)tblView numberOfRowsInSection:(NSInteger)section {
return [[[data objectAtIndex:section] objectForKey:#"rows"] count];
}
- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section {
return [[data objectAtIndex:section] objectForKey:#"section"];
}
- (UITableViewCell *) tableView:(UITableView *)tblView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *cellID = #"DefaultCell";
UITableViewCell *cell = (UITableViewCell *)[tblView dequeueReusableCellWithIdentifier:cellID];
if ( cell == nil ) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellID] autorelease];
}
cell.textLabel.text = [[[data objectAtIndex:indexPath.section] objectForKey:#"rows"] objectAtIndex:indexPath.row];
return cell;
}

Obj-C, iOS, How do I sort by value and not key, sortedArrayUsingSelector, currently #selector(compare:)]

I need to sort by value instead of Key, I think....
Heres where I populate my arrarys
const char *sql = "select cid, category from Categories ORDER BY category DESC";
sqlite3_stmt *statementTMP;
int error_code = sqlite3_prepare_v2(database, sql, -1, &statementTMP, NULL);
if(error_code == SQLITE_OK) {
while(sqlite3_step(statementTMP) == SQLITE_ROW)
{
int cid = sqlite3_column_int(statementTMP, 0);
NSString *category = [[NSString alloc] initWithUTF8String:(char *)sqlite3_column_text(statementTMP, 1)];
NSArray *arr=[[NSArray alloc]initWithObjects:category,nil];
[arrayTmp setObject:arr forKey:[NSString stringWithFormat:#"%i",cid]];
[self.cidList addObject:[NSString stringWithFormat:#"%i",cid]];
[category release];
[arr release];
}
}
sqlite3_finalize(statementTMP);
sqlite3_close(database);
self.allCategories = arrayTmp;
[arrayTmp release];
Heres the method where the arrays are re-sorted.
- (void)resetSearch {
NSMutableDictionary *allCategoriesCopy = [self.allCategories mutableDeepCopy];
self.Categories = allCategoriesCopy;
[allCategoriesCopy release];
NSMutableArray *keyArray = [[NSMutableArray alloc] init];
[keyArray addObject:UITableViewIndexSearch];
[keyArray addObjectsFromArray:[[self.allCategories allKeys]
sortedArrayUsingSelector:#selector(compare:)]];
self.keys = keyArray;
[keyArray release];
}
This is a problem i've had for some time, last time I looked at this I could find an altervative to sortedArrayUsingSelector compare?
EDIT
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
NSUInteger section = [indexPath section];
NSUInteger row = [indexPath row];
NSString *key = [keys objectAtIndex:section];
NSArray *nameSection = [Categories objectForKey:key];
static NSString *SectionsTableIdentifier = #"SectionsTableIdentifier";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:
SectionsTableIdentifier ];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault
reuseIdentifier: SectionsTableIdentifier ] autorelease];
}
cell.textLabel.text = [nameSection objectAtIndex:row];
return cell;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
NSUInteger section = [indexPath section];
NSUInteger row = [indexPath row];
NSString *key = [keys objectAtIndex:section];
NSArray *nameSection = [Categories objectForKey:key];
NSLog(#"the selected cid is = %i",[key intValue]);
selectButton.enabled = YES;
}
Anyone?
Your obviously attempting to construct an array for use in the -[UITableviewDatasource sectionIndexTitlesForTableView:]. As such, you need an array that looks like this (pseudo-code):
[UITableViewIndexSearch, 0_sectionTitle, 1_sectionTitle, 2_sectionTitle, ...]
I think your immediate problem is that you try to add the UITableViewIndexSearch string constant to the array before you sort which makes it impossible for it end up as the first element unless all your other elements sort below U.
The fix is simple, just add the constant after the sort. You can clean the code up while you're at it:
NSMutableArray *secIdx=[NSMutableArray arrayWithCapacity:[[self.allCategories allKeys] count]];
[secIdx addObjectsFromArray:[self.allCategories allKeys]];
[secIdx sortUsingSelector:#selector(compare:)];
[secIdx insertObject:UITableViewIndexSearch atIndex:0];
self.keys=secIdx;
Note that secIdx is autoreleased so you don't have to release it.
Aside from this problem, your code has a lot of unnecessary/dangerous elements that will make your app fragile and hard to maintain.
You are using a lot of init for objects that you could use autoreleased convenience methods for. The 'init`s poise the risk of memory leaks but give you no advantage.
You need to wrap scalar values in objects so they can be easily managed in collections.
You are using an unnecessary array.
You can rewrite the first block like so:
const char *sql = "select cid, category from Categories ORDER BY category DESC";
sqlite3_stmt *statementTMP;
int error_code = sqlite3_prepare_v2(database, sql, -1, &statementTMP, NULL);
if(error_code == SQLITE_OK) {
NSNumber *cidNum; //... move variable declerations outside of loop
NSString *category; //.. so they are not continously recreated
[self.allCategories removeAllObjects]; //... clears the mutable dictionary instead of replacing it
while(sqlite3_step(statementTMP) == SQLITE_ROW){
cidNum=[NSNumber numberWithInt:(sqlite3_column_int(statementTMP, 0))];
category=[NSString stringWithUTF8String:(char *)sqlite3_column_text(statementTMP, 1)];
//... adding the autoreleased category and cidNum to array/dictionary automatically retains them
[self.allCategories addObject:category forKey:cidNum];
[self.cidList addObject:cidNum];
//[category release]; ... no longer needed
//[arr release]; ... no longer needed
}
}
sqlite3_finalize(statementTMP);
sqlite3_close(database);
//self.allCategories = arrayTmp; ... no longer needed
//[arrayTmp release]; ... no longer needed
Use -sortedArrayUsingComparator: (or -sortedArrayUsingFunction:context: if you can't use blocks). Example:
NSDictionary *categories = [self allCategories];
NSArray *keysSortedByValue = [[categories allKeys] sortedArrayUsingComparator:
^(id left, id right) {
id lval = [categories objectForKey:left];
id rval = [categories objectForKey:right];
return [lval compare:rval];
}];
You could make a small model class Category and implement compare inside of it, then sort an array of those objects using that compare:.
Here's some info - How to sort an NSMutableArray with custom objects in it?
Perhaps you're looking for NSSortDescriptor (and the corresponding sort method, -[NSArray sortedArrayUsingDescriptors]) and friends?
If I understood correctly then what you wish to do to get categories from database & display it on a tableView with alphabetical sorting, index on right & search bar on top. Ideally, you would like to display the Contacts application kind of a view. If that's correct, use below code for fetching items from DB & rebuilding (or resetting) it -
const char *sql = "select cid, category from Categories ORDER BY category DESC";
sqlite3_stmt *statementTMP;
NSMutableArray *arrayTmp = [[NSMutableArray alloc] init];
int error_code = sqlite3_prepare_v2(database, sql, -1, &statementTMP, NULL);
if(error_code == SQLITE_OK) {
while(sqlite3_step(statementTMP) == SQLITE_ROW) {
int cid = sqlite3_column_int(statementTMP, 0);
NSString *category = [[NSString alloc] initWithUTF8String:(char *)sqlite3_column_text(statementTMP, 1)];
NSMutableDictionary *dict = [[NSMutableDictionary alloc] init];
[dict setObject:category forKey:#"Category"];
[dict setObject:[NSNumber numberWithInt:cid] forKey:#"CID"];
[arrayTmp addObject:dict];
[dict release];
[category release];
}
}
sqlite3_finalize(statementTMP);
sqlite3_close(database);
self.allCategories = arrayTmp;
[arrayTmp release];
And then rebuild the items using this function -
- (void)rebuildItems {
NSMutableDictionary *map = [NSMutableDictionary dictionary];
for (int i = 0; i < allCategories.count; i++) {
NSString *name = [[allCategories objectAtIndex:i] objectForKey:#"Category"];
NSString *letter = [name substringToIndex:1];
letter = [letter uppercaseString];
if (isdigit([letter characterAtIndex:0]))
letter = #"#";
NSMutableArray *section = [map objectForKey:letter];
if (!section) {
section = [NSMutableArray array];
[map setObject:section forKey:letter];
}
[section addObject:[allCategories objectAtIndex:i]];
}
[_items release];
_items = [[NSMutableArray alloc] init];
[_sections release];
_sections = [[NSMutableArray alloc] init];
NSArray* letters = [map.allKeys sortedArrayUsingSelector:#selector(caseInsensitiveCompare:)];
for (NSString* letter in letters) {
NSArray* items = [map objectForKey:letter];
[_sections addObject:letter];
[_items addObject:items];
}
}
Now, displaying items in tableView, use below methods -
#pragma mark -
#pragma mark Table view data source
- (NSInteger)numberOfSectionsInTableView:(UITableView *)aTableView {
if (_sections.count)
return _sections.count;
else
return 1;
}
- (NSInteger)tableView:(UITableView*)tableView sectionForSectionIndexTitle:(NSString *)title
atIndex:(NSInteger)index {
if (tableView.tableHeaderView) {
if (index == 0) {
[tableView scrollRectToVisible:tableView.tableHeaderView.bounds animated:NO];
return -1;
}
}
NSString* letter = [title substringToIndex:1];
NSInteger sectionCount = [tableView numberOfSections];
for (NSInteger i = 0; i < sectionCount; i++) {
NSString* section = [tableView.dataSource tableView:tableView titleForHeaderInSection:i];
if ([section hasPrefix:letter]) {
return i;
}
}
if (index >= sectionCount) {
return sectionCount-1;
} else {
return index;
}
}
- (NSArray*)lettersForSectionsWithSearch:(BOOL)withSearch withCount:(BOOL)withCount {
if (isSearching)
return nil;
if (_sections.count) {
NSMutableArray* titles = [NSMutableArray array];
if (withSearch) {
[titles addObject:UITableViewIndexSearch];
}
for (NSString* label in _sections) {
if (label.length) {
NSString* letter = [label substringToIndex:1];
[titles addObject:letter];
}
}
if (withCount) {
[titles addObject:#"#"];
}
return titles;
} else {
return nil;
}
}
- (NSArray *)sectionIndexTitlesForTableView:(UITableView *)tableView {
return [self lettersForSectionsWithSearch:YES withCount:NO];
}
- (NSInteger)tableView:(UITableView *)aTableView numberOfRowsInSection:(NSInteger)section {
if (_sections.count) {
NSArray* items = [_items objectAtIndex:section];
return items.count;
} else {
return _items.count;
}
}
- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section {
if (_sections.count)
return [_sections objectAtIndex:section];
return nil;
}
- (id)tableView:(UITableView *)tableView objectForRowAtIndexPath:(NSIndexPath *)indexPath {
if (_sections.count) {
NSArray *section = [_items objectAtIndex:indexPath.section];
return [section objectAtIndex:indexPath.row];
} else {
return [_items objectAtIndex:indexPath.row];
}
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
// Create your UITableViewCell.
// Configure the cell.
NSDictionary *dict = [self tableView:tableView objectForRowAtIndexPath:indexPath];
cell.textLabel.text = [dict objectForKey:#"Category"];
cell.detailTextLabel.text = [NSString stringWithFormat:%d, [[dict objectForKey:#"CID"] intValue]];
return cell;
}
#pragma mark -
#pragma mark Table view delegate
- (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section {
if (isSearching)
return nil;
NSString *title = #"";
if (_sections.count) {
title = [[_sections objectAtIndex:section] substringToIndex:1];
} else {
return nil;
}
UIView *view = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 320, 20)];
view.backgroundColor = [UIColor colorWithRed:(58/255.0) green:(27/255.0) blue:(6/255.0) alpha:1.0];
UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(10, 1, 50, 18)];
label.textColor = [UIColor whiteColor];
label.backgroundColor = [UIColor clearColor];
label.font = [UIFont boldSystemFontOfSize:17.0];
label.text = title;
[view addSubview:label];
[label release];
return [view autorelease];
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
NSDictionary *dict = [self tableView:tableView objectForRowAtIndexPath:indexPath];
NSLog(#"selected row id:%d, name:%#", [dict objectForKey:#"Category"], [[dict objectForKey:#"CID"] intValue]);
}
The rest part is implementing the UISearchBarDelegate and implementing searching of tableView which can be done using below code:
- (void)searchBar:(UISearchBar *)searchbar textDidChange:(NSString *)searchText {
[_sections removeAllObjects];
[_items removeAllObjects];
if([searchText isEqualToString:#""] || searchText == nil) {
[self rebuildItems];
return;
}
NSInteger counter = 0;
for(NSDictionary *dict in allCategories) {
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
NSRange r = [[dict objectForKey:#"Category"] rangeOfString:searchText options:NSCaseInsensitiveSearch];
if(r.location != NSNotFound) {
if(r.location == 0) {
[_items addObject:dict];
}
}
counter++;
[pool release];
}
[contactList reloadData];
}
Hope this is what you're looking for.
On your sorting function u should try this:
NSArray *cntxt; //im not sure this is the correct type that ur using on keyArray
[keyArray addObjectsFromArray:[self.allCategories allKeys]];
[keyArray sortUsingFunction:compareFunction context:cntxt];
And the compare function you modify to your needs
NSInteger compareFunction(id x, id y, void *context) {
//NSArray *ctxt = context;
NSArray *c1 = x;
NSArray *c2 = y;
if ([c1 value] < [c2 value])
return NSOrderedDescending;
else if ([c1 value] > [c2 value])
return NSOrderedAscending;
else
return NSOrderedSame;
}
Edit: After reading your comments and after relooking at your code, it seems like that your keyArray as objects of the type NSString, so you should change:
NSInteger compareFunction(id x, id y, void *context) {
//NSString *ctxt = context;
NSString *c1 = x;
NSString *c2 = y;
NSComparisonResult result;
result = [c1 compare:c2];
if (result<0)
return NSOrderedAscending;
else if (result>0)
return NSOrderedDescending;
else
return NSOrderedSame;
}