UITableViewCell error loading UIWebView - ios

Question

As you can see there is an error. I'm loading a UIWebView on each UITableViewCell. The problem is that when it loads a large amount of data the UITableViewCell disappears and when I scroll the text overlay itself.
Maybe there is a max height for a UITableViewCell?
It's another error?
What can I do?
Edit: this is the viewController code that manages the API response and store each 'post' as a UIWebView, wich is loaded in the main view and the UITableViewCell contentView. The question is: where is the problem with large webViews? code? max height? memory?
#import "TopicViewController.h"
#import "HTMLController.h"
NSString *_topicID;
#implementation TopicViewController
#synthesize heightForView = _heightForView;
#synthesize tableView = _tableView;
#synthesize htmlController = _htmlController;
#synthesize pageCounter = _pageCounter;
+ (void)setTopicID:(NSString *)topicID {
_topicID = topicID;
}
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
}
return self;
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
}
#pragma mark - View lifecycle
- (void)viewDidLoad
{
[super viewDidLoad];
self.heightForView = [[NSMutableDictionary alloc] init];
self.htmlController = [[HTMLController alloc] init];
[self.htmlController requestTopicWithID:_topicID];
NSInteger viewTag = 117;
for (NSString *html in self.htmlController.postsContent) {
NSString *formattedHTML = [NSString stringWithFormat:#"<div style='overflow: hidden; max-width: device-width;'>%#</div>", html];
NSLog(#"%#", formattedHTML);
UIWebView *content = [[UIWebView alloc] initWithFrame:CGRectMake(0, 0, 300, 1)];
content.tag = viewTag;
content.alpha = 0;
content.opaque = NO;
content.backgroundColor = [UIColor clearColor];
content.scrollView.scrollEnabled = NO;
content.scalesPageToFit = NO;
content.delegate = self;
[self.view addSubview:content];
[content loadHTMLString:formattedHTML baseURL:[NSURL URLWithString:#"http://www.elotrolado.net"]];
NSLog(#"loading wv %i", viewTag);
viewTag++;
}
}
- (void)viewDidUnload
{
[super viewDidUnload];
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
#pragma mark - TableViewDelegate & DataSource
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return [self.heightForView count]>0 ? [self.heightForView count] : 0;
}
- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section {
return nil;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return 1;
}
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
return [self.heightForView count]>0 ? [[self.heightForView objectForKey:[NSString stringWithFormat:#"%i", indexPath.section+117]] floatValue]+20.0 : 0;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
NSString *cellIdentifier = [NSString stringWithFormat:#"%i", indexPath.section];
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier];
if (!cell) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellIdentifier];
UIView *content = [self.view viewWithTag:(indexPath.section+117)];
content.alpha = 1;
[cell.contentView addSubview:content];
}
return cell;
}
- (void)webViewDidFinishLoad:(UIWebView *)webView {
CGRect frame = webView.frame;
frame.size = [webView sizeThatFits:CGSizeZero];
frame.size.width = 300;
webView.frame = frame;
[self.heightForView setObject:[NSString stringWithFormat:#"%f", frame.size.height] forKey:[NSString stringWithFormat:#"%i", webView.tag]];
if ([self.heightForView count]==[self.htmlController.postsContent count]) {
NSLog(#"All wv loaded");
[self.tableView reloadData];
} else NSLog(#"wv %i loaded", webView.tag);
}
#end
This code works with most webViews but it doesn't with large ones

Answer 1

I've found the answer here (tableView:heightForRowAtIndexPaths: documentation)
Important Due to an underlying implementation detail, you should not return values greater than 2009.
So my solution:
CGFloat height = 0;
if ([self.heightForView count]>0) {
if (([[self.heightForView objectForKey:[NSString stringWithFormat:#"%i", indexPath.section+117]] floatValue]+20.0)>2009) {
height = 2009;
UIWebView *content = (UIWebView *)[self.view viewWithTag:(indexPath.section+117)];
content.scrollView.scrollEnabled = YES;
} else height = [[self.heightForView objectForKey:[NSString stringWithFormat:#"%i", indexPath.section+117]] floatValue]+20.0;
}
return height;