ios4 - XML not getting parsed into tableview -

i trying parse xml data table view data not getting reflected .i implementing refresh button loads data xml once clicked. can please tell me doing wrong ? below code

// //  tab1.m //  sample // //  created vishal thakur on 10/3/13. //  copyright (c) 2013 __mycompanyname__. rights reserved. //  #import "tab1.h" #import "tab2.h" #import "fruit.h"  @interface tab1() {  tab2 *t2;  fruit *afruit;  nsstring *mark; } @property (retain, nonatomic) nsarray *fruits; @end  @implementation tab1 @synthesize table; @synthesize fruits; @synthesize fruitsdictionary; - (id)initwithstyle:(uitableviewstyle)style {     self = [super initwithstyle:style];     if (self) {         // custom initialization         self.fruits = [nsarray arraywithobjects:@"apple", @"pineapple", @"orange", @"banana", @"pear", @"kiwi", @"strawberry", nil];          nsstring *filepath = [[nsbundle mainbundle] pathforresource:@"names" oftype:@"xml"];           nsxmlparser *parser = [[nsxmlparser alloc] initwithdata:[nsdata datawithcontentsoffile:filepath]];           [parser setdelegate:self];          [[uiapplication sharedapplication] setnetworkactivityindicatorvisible:no];      uiview* customview = [[uiview alloc] initwithframe:cgrectmake(0.0, 0.0, 300.0, 44.0)];     uibutton *button = [uibutton buttonwithtype:uibuttontyperoundedrect];     [button setframe:cgrectmake(50, 10, 80, 40)];    [button settitle:@"refresh" forstate:uicontrolstatenormal];     [button addtarget:self action:@selector(refreshtable:) forcontrolevents:uicontroleventtouchupinside];    [customview addsubview:button];      self.table.tableheaderview = customview;      }     return self; }  -(void)refreshtable:(id)sender {       [[uiapplication sharedapplication] setnetworkactivityindicatorvisible:yes];       nsstring *filepath = [[nsbundle mainbundle] pathforresource:@"names" oftype:@"xml"];       nsxmlparser *parser = [[nsxmlparser alloc] initwithdata:[nsdata datawithcontentsoffile:filepath]];     [parser setdelegate:self];      if ([parser parse]) {             nslog(@"successful");       nslog(@"::::%@",fruitsdictionary);       ///////detailscreen *ds=[[detailscreen alloc]init];         [self.table reloaddata];     }    else {        nslog(@"failure!");    }     [[uiapplication sharedapplication] setnetworkactivityindicatorvisible:no]; }  - (nsinteger)tableview:(uitableview *)tableview numberofrowsinsection:(nsinteger)section; {     nsinteger count= [self.fruits count];     return count;  }  - (nsinteger)numberofsectionsintableview:(uitableview *)tableview; {     return 1; }  - (void)tableview:(uitableview *)tableview didselectrowatindexpath:(nsindexpath *)indexpath {      nsarray *keys = [fruitsdictionary allkeys];    nsdictionary *local = [nsdictionary dictionarywithobject:[fruitsdictionary valueforkey:[keys objectatindex:indexpath.row]]forkey:[keys objectatindex:indexpath.row]];      nslog(@"%@",keys);     uialertview *alert = [[uialertview alloc] initwithtitle:@"fruit" message:(nsstring *)[keys objectatindex:indexpath.row] delegate:self cancelbuttontitle:@"cancel" otherbuttontitles:@"other", nil];     [alert show]; }    - (uitableviewcell *)tableview:(uitableview *)tableview cellforrowatindexpath:(nsindexpath *)indexpath {     static nsstring *cellidentifier = @"cell identifier";  uitableviewcell * cell = [tableview dequeuereusablecellwithidentifier:cellidentifier];       if (!cell)      {      cell = [[uitableviewcell alloc] initwithstyle:uitableviewcellstyledefault reuseidentifier:cellidentifier];      }     nsarray *keys = [fruitsdictionary allkeys];     nsstring *fruit = [keys objectatindex:[indexpath row]];     [cell.textlabel settext:fruit];      return cell; }  - (void)parser:(nsxmlparser *)parser didstartelement:(nsstring *)elementname namespaceuri:(nsstring *)namespaceuri qualifiedname:(nsstring *)qname attributes:(nsdictionary *)attributedict{     if ([elementname isequaltostring:@"fruit"]) {         afruit = [[fruit alloc] init];         if (!fruitsdictionary) {             fruitsdictionary = [[nsmutabledictionary alloc] init];         }     } } - (void)parser:(nsxmlparser *)parser foundcharacters:(nsstring *)string {     currentelement = nil;     currentelement = [[nsmutablestring alloc] initwithstring:string]; }  - (void)parser:(nsxmlparser *)parser didendelement:(nsstring *)elementname namespaceuri:(nsstring *)namespaceuri qualifiedname:(nsstring *)qname {     if ([elementname isequaltostring:@"name"]) {         afruit.name = currentelement;     }     else if ([elementname isequaltostring:@"description"]) {         afruit.description = currentelement;     }     else if ([elementname isequaltostring:@"fruit"]) {         [fruitsdictionary setobject:afruit forkey:afruit.name];     } }   - (void)didreceivememorywarning {     // releases view if doesn't have superview.     [super didreceivememorywarning];      // release cached data, images, etc aren't in use. }  #pragma mark - view lifecycle  - (void)viewdidload {     [super viewdidload];      // uncomment following line preserve selection between presentations.     // self.clearsselectiononviewwillappear = no;      // uncomment following line display edit button in navigation bar view controller.     // self.navigationitem.rightbarbuttonitem = self.editbuttonitem; }  - (void)viewdidunload {     [self settable:nil];     [self setfruits:nil];     [super viewdidunload];     // release retained subviews of main view.     // e.g. self.myoutlet = nil; }  - (void)viewwillappear:(bool)animated {     [super viewwillappear:animated]; }  - (void)viewdidappear:(bool)animated {     [super viewdidappear:animated]; }  - (void)viewwilldisappear:(bool)animated {     [super viewwilldisappear:animated]; }  - (void)viewdiddisappear:(bool)animated {     [super viewdiddisappear:animated]; }  - (bool)shouldautorotatetointerfaceorientation:(uiinterfaceorientation)interfaceorientation {     // return yes supported orientations     return (interfaceorientation == uiinterfaceorientationportrait); }  #pragma mark - table view data source    /* // override support conditional editing of table view. - (bool)tableview:(uitableview *)tableview caneditrowatindexpath:(nsindexpath *)indexpath {     // return no if not want specified item editable.     return yes; } */  /* // override support editing table view. - (void)tableview:(uitableview *)tableview commiteditingstyle:(uitableviewcelleditingstyle)editingstyle forrowatindexpath:(nsindexpath *)indexpath {     if (editingstyle == uitableviewcelleditingstyledelete) {         // delete row data source         [tableview deleterowsatindexpaths:[nsarray arraywithobject:indexpath] withrowanimation:uitableviewrowanimationfade];     }        else if (editingstyle == uitableviewcelleditingstyleinsert) {         // create new instance of appropriate class, insert array, , add new row table view     }    } */  /* // override support rearranging table view. - (void)tableview:(uitableview *)tableview moverowatindexpath:(nsindexpath *)fromindexpath toindexpath:(nsindexpath *)toindexpath { } */  /* // override support conditional rearranging of table view. - (bool)tableview:(uitableview *)tableview canmoverowatindexpath:(nsindexpath *)indexpath {     // return no if not want item re-orderable.     return yes; } */  #pragma mark - table view delegate   @end 

you can use parserdidstartdocument: method doing this.

according nsxmlparserdelegate:

parserdidenddocument:

sent parser object delegate when has completed parsing.

- (void)parserdidenddocument:(nsxmlparser *)parser

parameters

parser

a parser object. 

availability

available in ios 2.0 , later. available part of informal protocol prior ios 4.0. 

see also

– parserdidstartdocument: 

declared in nsxmlparser.h

you can implement like:

- (void)parserdidstartdocument:(nsxmlparser *)parser {    [self.table reloaddata]; }