UITableview cellForRowAtIndexPath method is not executing? - ios

Question

When i click search it executes a search class and after finding the results it executes numberOfRows method but then it is showing empty table. It is not executing cellForRowAtIndexPath method .
check my below code
code in viewcontroller.h
when i click search button this method will get executed
- (void)searchBarSearchButtonClicked:(UISearchBar *)searchBar{
SearchResultsViewController *searchRes=[[SearchResultsViewController alloc]initWithNibName:#"SearchResultsViewController" bundle:nil];
NSString *searchQuery=[search text];
sharedManager=[Mymanager sharedManager];
sharedManager.searchQuery=searchQuery;
[searchRes searchString:searchQuery];
[self.navigationController pushViewController:searchRes animated:YES];
}
in search class
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
NSLog(#"%#",results);
return [results count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView1 cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView1 dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier];
}
cell.textLabel.adjustsFontSizeToFitWidth = YES;
NSLog(#"indexpath%d",indexPath.row);
NSLog(#"%#",[results objectAtIndex:[indexPath row]]);
SearchResult* hit = (SearchResult*)[results objectAtIndex:[indexPath row]];
NSLog(#"%#",hit.neighboringText);
cell.textLabel.text = [NSString stringWithFormat:#"...%#...", hit.neighboringText];
cell.detailTextLabel.text = [NSString stringWithFormat:#"Chapter %d - page %d", hit.chapterIndex, hit.pageIndex+1];
cell.textLabel.font = [UIFont fontWithName:#"Trebuchet MS" size:12];
cell.textLabel.textColor = [UIColor colorWithRed:25/255.0 green:90/255.0 blue:100/255.0 alpha:1];
// else
// {
//
// }
// [[self resultsTableView] reloadData];
return cell;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
SearchResult* hit = (SearchResult*)[results objectAtIndex:[indexPath row]];
[fvc loadSpine:hit.chapterIndex atPageIndex:hit.pageIndex highlightSearchResult:hit];
}
- (void) searchString:(NSString*)query{
// if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)
// {
self.results = [[NSMutableArray alloc] init];
[resultsTableView reloadData];
currentQuery=sharedManager.searchQuery;
//
[self searchString:currentQuery inChapterAtIndex:0];
//
// }else {
// currentQuery=sharedManager.searchQuery;
// [self searchString:currentQuery inChapterAtIndex:0];
//}
}
- (void) searchString:(NSString *)query inChapterAtIndex:(int)index{
currentChapterIndex = index;
sharedManager=[Mymanager sharedManager];
Chapter* chapter = [sharedManager.spineArray objectAtIndex:index];
NSLog(#"%d",chapter.text.length);
NSRange range = NSMakeRange(0, chapter.text.length);
NSLog(#"%#",sharedManager.searchQuery);
range = [chapter.text rangeOfString:sharedManager.searchQuery options:NSCaseInsensitiveSearch range:range locale:nil];
int hitCount=0;
while (range.location != NSNotFound) {
range = NSMakeRange(range.location+range.length, chapter.text.length-(range.location+range.length));
range = [chapter.text rangeOfString:sharedManager.searchQuery options:NSCaseInsensitiveSearch range:range locale:nil];
hitCount++;
}
if(hitCount!=0){
UIWebView* webView = [[UIWebView alloc] initWithFrame:chapter.windowSize];
[webView setDelegate:self];
NSURLRequest* urlRequest = [NSURLRequest requestWithURL:[NSURL fileURLWithPath:chapter.spinePath]];
[webView loadRequest:urlRequest];
} else {
if((currentChapterIndex+1)<[sharedManager.spineArray count]){
[self searchString:sharedManager.searchQuery inChapterAtIndex:(currentChapterIndex+1)];
} else {
fvc.searching = NO;
}
}
}
-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}
- (void)webView:(UIWebView *)webView didFailLoadWithError:(NSError *)error{
NSLog(#"%#", error);
[webView release];
}
- (void) webViewDidFinishLoad:(UIWebView*)webView{
NSString *varMySheet = #"var mySheet = document.styleSheets[0];";
NSString *addCSSRule = #"function addCSSRule(selector, newRule) {"
"if (mySheet.addRule) {"
"mySheet.addRule(selector, newRule);" // For Internet Explorer
"} else {"
"ruleIndex = mySheet.cssRules.length;"
"mySheet.insertRule(selector + '{' + newRule + ';}', ruleIndex);" // For Firefox, Chrome, etc.
"}"
"}";
NSString *insertRule1 = [NSString stringWithFormat:#"addCSSRule('html', 'padding: 0px; height: %fpx; -webkit-column-gap: 0px; -webkit-column-width: %fpx;')", webView.frame.size.height, webView.frame.size.width];
NSString *insertRule2 = [NSString stringWithFormat:#"addCSSRule('p', 'text-align: justify;')"];
NSString *setTextSizeRule = [NSString stringWithFormat:#"addCSSRule('body', '-webkit-text-size-adjust: %d%%;')",[[sharedManager.spineArray objectAtIndex:currentChapterIndex] fontPercentSize]];
[webView stringByEvaluatingJavaScriptFromString:varMySheet];
[webView stringByEvaluatingJavaScriptFromString:addCSSRule];
[webView stringByEvaluatingJavaScriptFromString:insertRule1];
[webView stringByEvaluatingJavaScriptFromString:insertRule2];
[webView stringByEvaluatingJavaScriptFromString:setTextSizeRule];
[webView highlightAllOccurencesOfString:sharedManager.searchQuery];
NSString* foundHits = [webView stringByEvaluatingJavaScriptFromString:#"results"];
NSLog(#"%#", foundHits);
NSMutableArray* objects = [[NSMutableArray alloc] init];
NSArray* stringObjects = [foundHits componentsSeparatedByString:#";"];
for(int i=0; i<[stringObjects count]; i++){
NSArray* strObj = [[stringObjects objectAtIndex:i] componentsSeparatedByString:#","];
if([strObj count]==3){
[objects addObject:strObj];
}
}
NSArray* orderedRes = [objects sortedArrayUsingComparator:^(id obj1, id obj2){
int x1 = [[obj1 objectAtIndex:0] intValue];
int x2 = [[obj2 objectAtIndex:0] intValue];
int y1 = [[obj1 objectAtIndex:1] intValue];
int y2 = [[obj2 objectAtIndex:1] intValue];
if(y1<y2){
return NSOrderedAscending;
} else if(y1>y2){
return NSOrderedDescending;
} else {
if(x1<x2){
return NSOrderedAscending;
} else if (x1>x2){
return NSOrderedDescending;
} else {
return NSOrderedSame;
}
}
}];
[objects release];
NSLog(#"%#",currentQuery);
for(int i=0; i<[orderedRes count]; i++){
NSArray* currObj = [orderedRes objectAtIndex:i];
SearchResult* searchRes = [[SearchResult alloc] initWithChapterIndex:currentChapterIndex pageIndex:([[currObj objectAtIndex:1] intValue]/webView.bounds.size.height) hitIndex:0 neighboringText:[webView stringByEvaluatingJavaScriptFromString:[NSString stringWithFormat:#"unescape('%#')", [currObj objectAtIndex:2]]] originatingQuery:currentQuery];
[results addObject:searchRes];
NSLog(#"%#",results);
[searchRes release];
}
//Print results
for(int i=0;i<[results count];i++)
{
SearchResult* hit = (SearchResult*)[results objectAtIndex:i];
NSLog(#"%#",hit.neighboringText);
}
[resultsTableView performSelectorOnMainThread:#selector(reloadData) withObject:nil waitUntilDone:NO];
if((currentChapterIndex+1)<[sharedManager.spineArray count]){
[self searchString:sharedManager.searchQuery inChapterAtIndex:(currentChapterIndex+1)];
} else {
fvc.searching= NO;
}
[[self resultsTableView] reloadData];
}
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
//- (void)dealloc
////{
//// self.resultsTableView = nil;
//// //[results release];
//// //[currentQuery release];
//// [super dealloc];
//}
- (void)didReceiveMemoryWarning
{
// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];
// Release any cached data, images, etc that aren't in use.
}
#pragma mark - View lifecycle
- (void)viewDidLoad
{
[super viewDidLoad];
resultsTableView=[[UITableView alloc]init];
[resultsTableView setDelegate:self];
[resultsTableView setDataSource:self];
sharedManager=[Mymanager sharedManager];
// Do any additional setup after loading the view from its nib.
results = [[NSMutableArray alloc] init];
self.navigationItem.title=#"Search ";
UIBarButtonItem *backButton = [[UIBarButtonItem alloc]
initWithTitle:#"Back"
style:UIBarButtonItemStylePlain
target:nil
action:nil];
self.navigationItem.backBarButtonItem=backButton;
[[UINavigationBar appearance] setTitleTextAttributes: #{
UITextAttributeTextColor: [UIColor whiteColor],
UITextAttributeTextShadowColor: [UIColor lightGrayColor],
UITextAttributeTextShadowOffset: [NSValue valueWithUIOffset:UIOffsetMake(0.0f, 1.0f)],
UITextAttributeFont: [UIFont fontWithName:#"Trebuchet MS" size:15.0f]
}];
noMatchingSearch=[[NSArray alloc]initWithObjects:#"No Element Found", nil];
tableOfContents=[[NSMutableArray alloc]init];
for (id img in search.subviews)
{
if ([img isKindOfClass:NSClassFromString(#"UISearchBarBackground")])
{
[img removeFromSuperview];
}
}
tableOfContents=[sharedManager.List copy];
}
- (void)viewDidUnload
{
search = nil;
[super viewDidUnload];
// Release any retained subviews of the main view.
self.resultsTableView = nil;
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
// Return YES for supported orientations
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
MY SEARCH RESULTS
"<SearchResult: 0x113482c0>",
"<SearchResult: 0x11348a20>",
"<SearchResult: 0x88c0a50>"

Answer 1

The problem is with the search method before search the array is reinitialised and hence 0 returned in the resultArray and hence no value in tables
- (void) searchString:(NSString*)query{
self.results = [[NSMutableArray alloc] init];//Here it becomes 0!!
[resultsTableView reloadData];
currentQuery=sharedManager.searchQuery;
}
To make it right ,After the search is performed i believe
[self searchString:currentQuery inChapterAtIndex:0];
load the value in the result array and then reload table.
Make sure
in .h add
<UITableViewDataSource,UITableViewDelegate>
in nib
connect datasource and delegate[if via nib]