Pushing separate WebView URLs for second-level TableView items

ellawson · 03-23-2011, 06:54 PM

Hi all,

OK. I have an app in development that has a list of items in a TableView. When you select a row it slides to another list of TableView items, which when you select an item will open a WebView URL.

Here's my issue: I have the top-level TableView list in. All the rows there go to their respective second-level TableView lists. But I'm not sure how to go about getting each of the second-level TableView items to go to their own WebView URLs - at the moment ALL the second level list items go to the same set of WebViews as the first set of top-level items.

e.g. (Level 1)Facilities > (Level2)Accommodation > (WebView)URL address 1

(Level 2)Gym > (WebView)URL address 2

(Level 2)Post Office > (WebView)URL address 3

(Level 1)Library > (Level2)Services > (WebView)URL address 1 (same as above)
(Level 2)How to > (WebView)URL address 2 (same as above)
(Level 2)Search > (WebView)URL address 3 (same as above)

etc...

This what I have at the moment:

Code:

//RootViewControler.m

...

- (void)viewDidLoad {
    [super viewDidLoad];
    self.authorList = [[NSArray alloc] initWithObjects:@"Student Facilities", 
					   @"Library", @"Student Support", @"External Study", @"Resources", nil];
    self.title = @"Students";

...

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
	
	if (0 == indexPath.row)
	{       
		self.booksController.title = @"Student Facilities";
	} else if (1 == indexPath.row)
	{       
		self.booksController.title = @"Library";
	} else if (2 == indexPath.row)
	{       
		self.booksController.title = @"Student Support";
	} else if (3 == indexPath.row)
	{       
		self.booksController.title = @"External Study";
	} else {
		self.booksController.title = @"Resources";
	}
	
	[self.navigationController pushViewController:self.booksController animated:YES];
}

...


//
//LevelTwoViewController.m

...

- (void)viewWillAppear:(BOOL)animated {
	if ([self.title isEqualToString:@"Student Facilities"]) {
		books = [[NSArray alloc ] initWithObjects:@"Student accommodation", @"Gym", @"Post Office", @"Bookshop", nil];
	} else if ([self.title isEqualToString:@"Library"]) {
		books = [[NSArray alloc ] initWithObjects:@"Library services", @"Library how to", @"Library search", @"Library website", nil];
	} else if ([self.title isEqualToString:@"Student Support"]) {
		books = [[NSArray alloc ] initWithObjects:@"Online", @"Dates", @"Enrolments", @"Exams", @"Timetables", @"Accounts", nil];
	} else if ([self.title isEqualToString:@"External Study"]) {
		books = [[NSArray alloc ] initWithObjects:@"External assignments", @"External exams", @"Open Universities scheme", @"Dispatch", nil];
	} else {
		books = [[NSArray alloc ] initWithObjects:@"Studying online", @"Learnline FAQs", @"Learnline tutorials", @"Learnline manuals", nil];
	}
	
	[super viewWillAppear:animated];
	[self.tableView reloadData];
}

...

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
   
	UIViewController *webViewController = [[[UIViewController alloc] init] autorelease];
	
	UIWebView *uiWebView = [[[UIWebView alloc] initWithFrame: CGRectMake(0,0,320,480)] autorelease];
	if (0 == indexPath.row)
	{       
		[uiWebView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"http://www.google.com"]]];
	} else if (1 == indexPath.row)
	{       
			[uiWebView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"http://www.yahoo.com"]]];
	} else if (2 == indexPath.row)
	{       
		[uiWebView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"http://www.hotmail.com"]]];
	} else {
			[uiWebView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"http://ninemsn.com.au"]]];
	}
	uiWebView.scalesPageToFit = YES; // uiWebView - object of UiWebview

	[webViewController.view addSubview: uiWebView];
	
	[self.navigationController pushViewController:webViewController animated:YES];
	
}

Being a newbie to the whole programming and Xcode thing, just let me know any other code you need to see and I'll gladly post it.

Any help is much appreciated, thanks.

ellawson · 03-23-2011, 08:32 PM

Funnily enough, I was able to help myself

For any other newbies out there who come across this later on, it's pretty simple - within the didSelectRowAtIndexPath method, put an if statement (self.title isEqualToString @"Top Level Item Name") for each top-level item, then nest another if statement (indexPath.row == i) within it and include each uiWebView URL there.

Works like a charm!

jelmer1993 · 03-24-2011, 01:18 PM

Quote:

Originally Posted by ellawson

Funnily enough, I was able to help myself

For any other newbies out there who come across this later on, it's pretty simple - within the didSelectRowAtIndexPath method, put an if statement (self.title isEqualToString @"Top Level Item Name") for each top-level item, then nest another if statement (indexPath.row == i) within it and include each uiWebView URL there.

Works like a charm!

I have the same problem, I have a tableview and if you click at one item, then you go to a detailview with a unique URL for webView. I think it's the same idea as yours. Could you help me, or send your solution in .xcodeproject?

ellawson · 03-24-2011, 06:08 PM

Quote:

Originally Posted by jelmer1993

I have the same problem, I have a tableview and if you click at one item, then you go to a detailview with a unique URL for webView. I think it's the same idea as yours. Could you help me, or send your solution in .xcodeproject?

This is assuming your table view has been constructed using NSArray or similar with a self.title attribute (e.g. self.title isEqualToString:@"Your Row Name").

So I'm guessing in your detailview you would find your didSelectRowAtIndexPath method and put something like this:

Code:

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {

	UIViewController *webViewController = [[[UIViewController alloc] init] autorelease];
	
	UIWebView *uiWebView = [[[UIWebView alloc] initWithFrame: CGRectMake(0,0,320,480)] autorelease];
	if ([self.title isEqualToString:@"Row Name 1"]){ //if the tableview row with this title is selected
if (indexPath.row == 0) { //then the first subrow should open this webview URL
			[uiWebView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"http://www.google.com"]]];
		} else if (indexPath.row == 1) { //the second subrow
			[uiWebView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"http://www.amazon.com"]]];
		}  else { //any other subrows
		[uiWebView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"http://www.yahoo.com"]]];
		}
	} else if ([self.title isEqualToString:@"Row 2 Name"]){ //if the tableview row with this title is selected
		if (indexPath.row == 0) { //then the first subrow will open this webview URL
			[uiWebView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"http://www.coles.com.au"]]];
		} else { //any other subrows will open this one
			[uiWebView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"http://www.cdu.edu.au.html"]]];
		} 
} 
else { // for any other top level tableview rows
		if (indexPath.row == 0) { // the first subrow
			[uiWebView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"http://www.ebay.com.au"]]];
		} else { //any other subrows
			[uiWebView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"http://www.ebay.com.au"]]];
		}
	}

	uiWebView.scalesPageToFit = YES; // uiWebView - object of UiWebview

	[webViewController.view addSubview: uiWebView];
	
	[self.navigationController pushViewController:webViewController animated:YES];
	
}

Of course, for more tableview rows and/or subrows you would add more "else if" statements in between the "if" and the last "else".

Depending on the structure of your tables and classes you may need to play around with the code, but this should give you more than a general idea.

Best of luck!

Bricolaureate · 01-19-2012, 10:00 AM

Hi,
I'm a newbie also and I thought this code you provided would be my answer but I'm having trouble making it work and hope you can help (have tried other things to no avail)

The problem I have is that the selection keeps loading from the first row of the second table regardless of the selection from the first table. Can you see what I may be missing?

I copied your code bit from above and inserted my values as such:

Any help greatly appreciated!!

- (void)tableView

UITableView *)tableView didSelectRowAtIndexPath

NSIndexPath *)indexPath {

//Get the dictionary of the selected data source.
NSDictionary *dictionary = [self.tableDataSource objectAtIndex:indexPath.row];

//Get the children of the present item.
NSArray *Children = [dictionary objectForKey:@"Children"];

if([Children count] == 0)
{

UIViewController *webViewController = [[[UIViewController alloc] init] autorelease];

UIWebView *uiWebView = [[[UIWebView alloc] initWithFrame: CGRectMake(0,0,320,480)] autorelease];
if ([self.title isEqualToString:@"FirstRowTitleName"]){ //if the tableview row with this title is selected
if (indexPath.row == 0) { //then the first subrow should open this webview URL
[uiWebView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"http://www.google.com"]]];
} else if (indexPath.row == 1) { //the second subrow
[uiWebView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"http://www.amazon.com"]]];
} else { //any other subrows
[uiWebView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"http://www.yahoo.com"]]];
}
} else if ([self.title isEqualToString:@"Body Blitz"]){ //if the tableview row with this title is selected
if (indexPath.row == 0) { //then the first subrow will open this webview URL
[uiWebView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"http://www.coles.com.au"]]];
} else { //any other subrows will open this one
[uiWebView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"http://www.cdu.edu.au.html"]]];
}
}
else { // for any other top level tableview rows
if (indexPath.row == 0) { // the first subrow
[uiWebView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"http://www.ebay.com.au"]]];
} else { //any other subrows
[uiWebView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"http://www.ebay.com.au"]]];
}
}

uiWebView.scalesPageToFit = YES; // uiWebView - object of UiWebview

[webViewController.view addSubview: uiWebView];

[self.navigationController pushViewController:webViewController animated:YES];

}

else {

//Prepare to tableview.
RootViewController *rvController = [[RootViewController alloc] initWithNibName:@"RootViewController" bundle:[NSBundle mainBundle]];

//Increment the Current View
rvController.CurrentLevel += 1;

//Set the title;
rvController.CurrentTitle = [dictionary objectForKey:@"Title"];

//Push the new table view on the stack
[self.navigationController pushViewController:rvController animated:YES];

rvController.tableDataSource = Children;

[rvController release];
}
}