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PONSMutableArray vs NSArray Round 2
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copied!<p>my question depends on my other question</p> <p><a href="https://stackoverflow.com/questions/6580076/nsmutablearray-vs-nsarray">NSMutableArray vs NSArray</a></p> <p>i have created a navigationController and load a TableView inside with data from the other question. Now a get a detailview and get new data from xml, so i copy my methods and modifide them.</p> <p>but it is the same stucture, i does not change a lot.</p> <p>But now i get the same error.</p> <p>i have in detailview.h</p> <pre><code> NSMutableArray *seminareArray; </code></pre> <p>and</p> <pre><code>@property (nonatomic, retain) NSMutableArray *seminareArray; </code></pre> <p>in detailview.m</p> <pre><code>@synthesize SeminareListeTabelle, selectedSeminar, seminareArray, receivedData; </code></pre> <p>i add this code</p> <pre><code>seminareArray = [[NSMutableArray alloc] init]; self.seminareArray = [NSMutableArray arrayWithCapacity:10]; </code></pre> <p>before i add the data. and i get the error here</p> <pre><code>cell.textLabel.text = [seminareArray objectAtIndex:row]; </code></pre> <p>EXC_BAD_ACCESS again some type problem</p> <p>i add data to array like this</p> <pre><code>if([elementName isEqualToString:@"seminar"]) { //NSLog(@"%@", [attributeDict objectForKey:@"name"]); NSString *seminarName = [NSString stringWithFormat:@"%@", [attributeDict objectForKey:@"name"]]; [seminareArray addObject:seminarName]; [seminarName release]; } </code></pre> <p>the array is filled with data, but after tableView reload, i get this error.</p> <pre><code>// // SeminareListingView.m // Seminar App2 // // Created by Alexander Frischbutter on 05.07.11. // Copyright 2011 __MyCompanyName__. All rights reserved. // #import "SeminareListingView.h" //#import "SeminareView.h" @implementation SeminareListingView @synthesize SeminareListeTabelle, selectedSeminar, seminareArray, receivedData; - (void) parseData:(NSString *)url { if(receivedData) { receivedData = nil; } NSLog(@"Parsing... url: %@", url); NSURLRequest *theRequest = [NSURLRequest requestWithURL:[NSURL URLWithString:[NSString stringWithFormat:@"%@", url]] cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:60.0]; NSURLConnection *theConnection = [[NSURLConnection alloc] initWithRequest:theRequest delegate:self]; if(theConnection) { receivedData = [[NSMutableData data] retain]; } else { //label.text = @"XML nicht geladen"; NSLog(@"XML nicht gefunden"); } } - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; if (self) { // Custom initialization } return self; } - (void)dealloc { [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]; SeminareListeTabelle = [[UITableView alloc] initWithFrame:[[UIScreen mainScreen] applicationFrame] style:UITableViewStylePlain]; SeminareListeTabelle.delegate = self; SeminareListeTabelle.dataSource = self; SeminareListeTabelle.autoresizesSubviews = YES; seminareArray = [[NSMutableArray alloc] init]; self.seminareArray = [NSMutableArray arrayWithCapacity:10]; [self parseData:[NSString stringWithFormat:@"http://akademie.kunden.fincha.com/semapp/sem_kat_arbtechnik.xml", selectedSeminar]]; self.navigationItem.title = [NSString stringWithFormat:@"%@", selectedSeminar]; self.view = SeminareListeTabelle; // Do any additional setup after loading the view from its nib. } - (void)startParsingData { NSLog(@"Parsing started"); NSXMLParser *dataParser = [[NSXMLParser alloc] initWithData:receivedData]; dataParser.delegate = self; [dataParser parse]; [dataParser release]; [receivedData release]; NSLog(@"Received Data in seminareArray"); /* for(int i = 0; i < [seminareArray count]; i++) { NSLog(@"%d is %@", i, [seminareArray objectAtIndex:i]); //NSLog(@"Count %d", [kategorienArray count]); } */ //[seminareArray release]; NSLog(@"Reload data in TableView"); [self.SeminareListeTabelle reloadData]; NSLog(@"Data reloaded"); } - (void)viewDidUnload { //[seminareArray release]; //[SeminareListeTabelle release]; NSLog(@"Vew unloaded"); [super viewDidUnload]; // Release any retained subviews of the main view. // e.g. self.myOutlet = nil; } - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *SimpleTableIdentifier = @"SimpleTableIdentifier"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier: SimpleTableIdentifier]; if (cell == nil) { cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:SimpleTableIdentifier] autorelease]; } if([seminareArray count] != 0) { NSLog(@"Adding data to cell"); NSUInteger row = [indexPath row]; //cell.textLabel.text = [NSString stringWithFormat:@"bla, %d", row]; //[seminareArray objectAtIndex:row]; cell.textLabel.text = [seminareArray objectAtIndex:row]; NSLog(@"Added data to cell"); } return cell; } - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { //NSLog(@"Count %d", [self.seminareArray count]); return [seminareArray count]; } -(NSInteger) tableView:(UITableView *)tableView indentationLevelForRowAtIndexPath:(NSIndexPath *)indexPath { return 0; } //Anzeige mit Seminaren öffnen bei Click auf die Zeile -(void) tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { //gehe zurück zum ersten View //NSLog(@"Received Data in seminareArray"); [[self navigationController] popViewControllerAnimated:YES]; } - (void)connection:(NSURLConnection *)connection didReceiveResonse:(NSURLResponse *)response { [receivedData setLength:0]; } - (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data { if(receivedData) { [receivedData appendData:data]; } } - (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error { [connection release]; [receivedData release]; //label.text = @"Connection failed"; NSLog(@"Verbindung fehlgeschlagen!"); //[[self navigationController] popViewControllerAnimated:YES]; } - (void)connectionDidFinishLoading:(NSURLConnection *)connection { [self startParsingData]; [connection release]; } - (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict { //NSLog(@"Parser was called. Element: %@", elementName); if([elementName isEqualToString:@"seminar"]) { //NSLog(@"%@", [attributeDict objectForKey:@"name"]); NSString *seminarName = [NSString stringWithFormat:@"%@", [attributeDict objectForKey:@"name"]]; [seminareArray addObject:seminarName]; [seminarName release]; } } - (void)parser:(NSXMLParser *)parser parseErrorOccurred:(NSError *)parseError { NSLog(@"Parse Error %@", parseError); } - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { // Return YES for supported orientations return (interfaceOrientation == UIInterfaceOrientationPortrait); } @end </code></pre>

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