Objective-C woes: cellForRowAtIndexPath crashes.
- by Mr. McPepperNuts
I want to the user to be able to search for a record in a DB. The fetch and the results returned work perfectly. I am having a hard time setting the UItableview to display the result tho. The application continually crashes at cellForRowAtIndexPath. Please, someone help before I have a heart attack over here. Thank you.
@implementation SearchViewController
@synthesize mySearchBar;
@synthesize textToSearchFor;
@synthesize myGlobalSearchObject;
@synthesize results;
@synthesize tableView;
@synthesize tempString;
#pragma mark -
#pragma mark View lifecycle
- (void)viewDidLoad {
[super viewDidLoad];
}
#pragma mark -
#pragma mark Table View
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
//handle selection; push view
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView{
/* if(nullResulSearch == TRUE){
return 1;
}else {
return[results count];
}
*/
return[results count];
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return 1; // Test hack to display multiple rows.
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = @"Search Cell Identifier";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if(cell == nil){
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue2 reuseIdentifier:CellIdentifier] autorelease];
}
NSLog(@"TEMPSTRING %@", tempString);
cell.textLabel.text = tempString;
return cell;
}
#pragma mark -
#pragma mark Memory management
- (void)didReceiveMemoryWarning {
// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];
}
- (void)viewDidUnload {
self.tableView = nil;
}
- (void)dealloc {
[results release];
[mySearchBar release];
[textToSearchFor release];
[myGlobalSearchObject release];
[super dealloc];
}
#pragma mark -
#pragma mark Search Function & Fetch Controller
- (NSManagedObject *)SearchDatabaseForText:(NSString *)passdTextToSearchFor{
NSManagedObject *searchObj;
UndergroundBaseballAppDelegate *appDelegate = [[UIApplication sharedApplication] delegate];
NSManagedObjectContext *managedObjectContext = appDelegate.managedObjectContext;
NSFetchRequest *request = [[NSFetchRequest alloc] init];
NSPredicate *predicate = [NSPredicate predicateWithFormat:@"name == [c]%@", passdTextToSearchFor];
NSEntityDescription *entity = [NSEntityDescription entityForName:@"Entry" inManagedObjectContext:managedObjectContext];
NSSortDescriptor *sortDescriptor = [[NSSortDescriptor alloc] initWithKey:@"name" ascending:NO];
NSArray *sortDescriptors = [[NSArray alloc] initWithObjects:sortDescriptor, nil];
[request setSortDescriptors:sortDescriptors];
[request setEntity: entity];
[request setPredicate: predicate];
NSError *error;
results = [managedObjectContext executeFetchRequest:request error:&error];
if([results count] == 0){
NSLog(@"No results found");
searchObj = nil;
nullResulSearch == TRUE;
}else{
if ([[[results objectAtIndex:0] name] caseInsensitiveCompare:passdTextToSearchFor] == 0) {
NSLog(@"results %@", [[results objectAtIndex:0] name]);
searchObj = [results objectAtIndex:0];
nullResulSearch == FALSE;
}else{
NSLog(@"No results found");
searchObj = nil;
nullResulSearch == TRUE;
}
}
[tableView reloadData];
[request release];
[sortDescriptors release];
return searchObj;
}
- (void)searchBarSearchButtonClicked:(UISearchBar *)searchBar{
textToSearchFor = mySearchBar.text;
NSLog(@"textToSearchFor: %@", textToSearchFor);
myGlobalSearchObject = [self SearchDatabaseForText:textToSearchFor];
NSLog(@"myGlobalSearchObject: %@", myGlobalSearchObject);
tempString = [myGlobalSearchObject valueForKey:@"name"];
NSLog(@"tempString: %@", tempString);
}
@end
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[UILongPressGestureRecognizer isEqualToString:]: unrecognized selector sent to instance 0x3d46c20'
