我有一个由对象数组填充的表，每当我调用重新填充数组并重新加载表的刷新方法时，当我尝试在 cellForRowAtIndexPath 中读取我的数组时，都会出现超出范围的错误。我已经对我的数组进行了 NSLogged 以确保它被正确填充，并且确实如此。它总是试图读取比数组实际更大的索引 1。我不知道为什么。任何帮助将不胜感激！
cellForRowAtIndexPath：
- (UITableViewCell *)tableView:(UITableView *)theTableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
NSLog(@"IndexPath = %d", indexPath.row);
// Returns the cell for the given indexPath
static NSString *cellidentifier1 = @"cell1";
static NSString *cellidentifier2 = @"cell2";
self.tableView.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@"dark-background.jpg"]];
self.tableView.separatorColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@"dark-background.jpg"]];
// Invisible Cell
if (indexPath.row % 2 == 0) {
UITableViewCell *cell2 = [theTableView dequeueReusableCellWithIdentifier:cellidentifier2];
if (cell2 == nil) {
cell2 = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellidentifier2];
}
[cell2.contentView setAlpha:0];
[cell2 setUserInteractionEnabled:NO];
[cell2 setBackgroundColor:[UIColor clearColor]];
return cell2;
}
// Standard Cell
FCTableViewCell *cell = (FCTableViewCell *)[theTableView dequeueReusableCellWithIdentifier:cellidentifier1];
if (cell == nil) {
cell = [[FCTableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellidentifier1];
}
FCCall *currentCall = [[dataController calls] objectAtIndex:((indexPath.row - 1 ) / 2)];
cell.callLabel.text = currentCall.call;
cell.locationLabel.text = currentCall.location;
cell.wcccaNumberLabel.text = currentCall.wcccaNumber;
cell.callNumberLabel.text = currentCall.callnumber;
// Remove leading white space from units string
NSString *units = [currentCall.units stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
cell.unitsLabel.text = units;
cell.stationLabel.text = currentCall.station;
if ([currentCall.county isEqualToString:@"W"]) {
cell.countyImageView.image = [UIImage imageNamed:@"blue.png"];
}
else {
cell.countyImageView.image = [UIImage imageNamed:@"green.png"];
}
if ([currentCall.callType isEqualToString:@"F"]) {
cell.callTypeImageView.image = [UIImage imageNamed:@"red.png"];
}
else {
cell.callTypeImageView.image = [UIImage imageNamed:@"yellow.png"];
}
[cell.unitButton addTarget:self action:@selector(unitButtonTapped:) forControlEvents:UIControlEventTouchUpInside];
cell.unitButton.tag = ((indexPath.section & 0xFFFF) << 16) |
(indexPath.row & 0xFFFF);
[cell.directionsButton addTarget:self action:@selector(directionsButtonTapped:) forControlEvents:UIControlEventTouchUpInside];
cell.directionsButton.tag = ((indexPath.section & 0xFFFF) << 16) |
(indexPath.row & 0xFFFF);
return cell;
}
numberOfRowsInSection：
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
// Returns the number of rows per section
return [dataController calls].count * 2;
}
刷新方法：
[dataController refreshData:self success:^(NSURLRequest *request, NSURL *url, NSArray *calls) {
[self setWork:calls];
NSLog(@"Array = %@", work);
// Reset the pull controller and reload the table
[pull finishedLoading];
[tableView reloadData];
} failure:^(NSURLRequest *request, NSURL *url, NSError *error) {
// Reset pull indicator
[pull finishedLoading];
// Reload table
[tableView reloadData];
}];
刷新方法：
- (void)refreshData:(id)object success:(void (^)(NSURLRequest *request, NSURL *url, NSArray *calls))success failure:(void (^)(NSURLRequest *request, NSURL *url, NSError *error))failure
{
NSLog(@"Refresh Started");
// Start the network activity indicator
[[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:YES];
// Check to make sure we can even make an HTTP request
NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:@"http://www.wccca.com/PITS"]];
AFHTTPRequestOperation *requestOperation = [[AFHTTPRequestOperation alloc] initWithRequest:request];
[requestOperation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {
NSLog(@"Reachable");
// Get the URL we are going to use to parse with
[FCDataController parserURL:[NSURL URLWithString:@"http://www.wccca.com/PITS"] completion:^(NSURL *url) {
NSURLRequest *parserRequest = [NSURLRequest requestWithURL:url];
AFXMLRequestOperation *operation = [AFXMLRequestOperation XMLParserRequestOperationWithRequest:parserRequest success:^(NSURLRequest *request, NSHTTPURLResponse *response, NSXMLParser *XMLParser) {
// Initialize our calls array that will control our calls
calls = [[NSMutableArray alloc] init];
// Set the delegate for the XMLParser and start the parse operation
XMLParser.delegate = self;
BOOL successful = [XMLParser parse];
// Determine if the parse operation was a success or not
if (!successful) {
// Return the failure block because the parser failed
failure(request, url, [FCErrors parserError]);
// Stop the network activity indicator
[[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:NO];
}
else {
// Return the success block
success(request, url, calls);
// Stop the network activity indicator
[[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:NO];
}
NSLog(@"Refresh Finished");
} failure:^(NSURLRequest *request, NSHTTPURLResponse *response, NSError *error, NSXMLParser *XMLParser) {
NSLog(@"AFXMLOperation Error: %@", error.localizedDescription);
// Remove all data from our previous calls aray
[self setCalls:nil];
failure(parserRequest, url, [FCErrors badURLError]);
// Stop the network activity indicator
[[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:NO];
NSLog(@"Refresh Finished");
}];
[operation start];
}];
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(@"Unreachable. AFHTTPRequestOperation Error: %@", error.localizedDescription);
// Remove all data from our previous calls aray
[self setCalls:nil];
failure(request, nil, [FCErrors networkError]);
// Stop the network activity indicator
[[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:NO];
NSLog(@"Refresh Finished");
}];
[requestOperation start];
}