My app has a table view that gets its data from an RSS feed. When a row is selected, a web view is shown with the article for the row selected. I have my activity indicator but it never stops and therefore doesn't hide.
Here is the didSelectRowFromIndexPath method from the table view.
Here is my web view controller.
Here is the didSelectRowFromIndexPath method from the table view.
Code:
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
[[webViewController webView]loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"about:blank"]]];
[self.navigationController pushViewController:webViewController animated:YES];
// Grab the selected item
RSSItem *entry = [[channel items]objectAtIndex:[indexPath row]];
// Construct a URL with the link string of the item
NSURL *url = [NSURL URLWithString:[entry link]];
// Construct a request object with that URL
NSURLRequest *req = [NSURLRequest requestWithURL:url];
// Load the request into the web view
[[webViewController webView]loadRequest:req];
webViewController.hackyURL = url;
}Here is my web view controller.
Code:
#import "WebViewController.h"
#import "TUSafariActivity.h"
#import "SVProgressHUD.h"
@implementation WebViewController
{
}
@synthesize webView=webView, hackyURL=hackyURL, activityIndicator;
- (void)loadView
{
// Create an instance of UIWebView as large as the screen
CGRect screenFrame = [[UIScreen mainScreen]applicationFrame];
UIWebView *wv = [[UIWebView alloc]initWithFrame:screenFrame];
webView = wv;
NSLog(@"%@",webView.request.URL);
// Tell web view to scale web content to fit within bounds of webview
[wv setScalesPageToFit:YES];
[self setView:wv];
}
- (UIWebView *)webView
{
return (UIWebView *)[self view];
}
- (void) showMenu
{
NSURL *urlToShare = hackyURL;
NSArray *activityItems = @[urlToShare];
TUSafariActivity *activity = [[TUSafariActivity alloc] init];
__block UIActivityViewController *activityVC = [[UIActivityViewController alloc]initWithActivityItems:activityItems applicationActivities:@[activity]];
activityVC.excludedActivityTypes = @[UIActivityTypeAssignToContact, UIActivityTypePostToWeibo, UIActivityTypeSaveToCameraRoll];
[self presentViewController:activityVC animated:YES completion:^{activityVC.excludedActivityTypes = nil; activityVC = nil;}];
}
- (void)toggleBars:(UITapGestureRecognizer *)gesture
{
BOOL barsHidden = self.navigationController.navigationBar.hidden;
if (!barsHidden)
{
[[UIApplication sharedApplication] setStatusBarHidden:YES withAnimation:UIStatusBarAnimationSlide];
[self hideTabBar:self.tabBarController];
}
else if (barsHidden)
{
[[UIApplication sharedApplication] setStatusBarHidden:NO withAnimation:UIStatusBarAnimationSlide];
[self showTabBar:self.tabBarController];
}
[self.navigationController setNavigationBarHidden:!barsHidden animated:YES];
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view from its nib.
CGFloat width = CGRectGetWidth(self.view.bounds);
CGFloat height = CGRectGetHeight(self.view.bounds);
// start an animator symbol for the webpage loading to follow
UIActivityIndicatorView *progressWheel = [[UIActivityIndicatorView alloc]
initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleGray];
// makes activity indicator disappear when it is stopped
progressWheel.hidesWhenStopped = YES;
// used to locate position of activity indicator
progressWheel.center = CGPointMake(width / 2, height / 2);
self.activityIndicator = progressWheel;
[self.view addSubview: self.activityIndicator];
self.activityIndicator.hidesWhenStopped = YES;
[self.activityIndicator startAnimating];
UIBarButtonItem *systemAction = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAction target:self action:@selector(showMenu)];
self.navigationItem.rightBarButtonItem = systemAction;
UITapGestureRecognizer *singleTap = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(toggleBars:)];
[webView addGestureRecognizer:singleTap];
singleTap.delegate = self;
// self.hidesBottomBarWhenPushed = YES;
}
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer
{
return YES;
}
- (void) hideTabBar:(UITabBarController *) tabbarcontroller
{
CGRect screenRect = [[UIScreen mainScreen] bounds];
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.5];
float fHeight = screenRect.size.height;
if( UIDeviceOrientationIsLandscape([UIApplication sharedApplication].statusBarOrientation) )
{
fHeight = screenRect.size.width;
}
for(UIView *view in tabbarcontroller.view.subviews)
{
if([view isKindOfClass:[UITabBar class]])
{
[view setFrame:CGRectMake(view.frame.origin.x, fHeight, view.frame.size.width, view.frame.size.height)];
}
else
{
[view setFrame:CGRectMake(view.frame.origin.x, view.frame.origin.y, view.frame.size.width, fHeight)];
view.backgroundColor = [UIColor blackColor];
}
}
[UIView commitAnimations];
}
- (void) showTabBar:(UITabBarController *) tabbarcontroller
{
CGRect screenRect = [[UIScreen mainScreen] bounds];
float fHeight = screenRect.size.height - 49.0;
if( UIDeviceOrientationIsLandscape([UIApplication sharedApplication].statusBarOrientation) )
{
fHeight = screenRect.size.width - 49.0;
}
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.5];
for(UIView *view in tabbarcontroller.view.subviews)
{
if([view isKindOfClass:[UITabBar class]])
{
[view setFrame:CGRectMake(view.frame.origin.x, fHeight, view.frame.size.width, view.frame.size.height)];
}
else
{
[view setFrame:CGRectMake(view.frame.origin.x, view.frame.origin.y, view.frame.size.width, fHeight)];
}
}
[UIView commitAnimations];
}
- (void)webViewDidStartLoad:(UIWebView *)wv
{
[self.activityIndicator startAnimating];
}
- (void)webViewDidFinishLoad:(UIWebView *)wv
{
[self.activityIndicator stopAnimating];
}
@end
Last edited:
