I am trying to call a UIView inside of a UITableViewController.
JHWebViewController has been created in the storybaord.
JHWebViewController *myWebView = [[JHWebViewController alloc] init];
NSURLRequest *requestObj = [NSURLRequest requestWithURL:url];
myWebView.request = requestObj;
[self presentViewController:myWebView animated:YES completion:nil];
The error I get is Property 'request' not found on object of type 'JHWebViewController *'
You can write the relevant code in UITableView didSelectRowAtIndexPath method I hope it will work for you
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath`
{
[self.view addSubview:myWebView.view];
}
You try try this:
JHWebViewController *myWebView = [[JHWebViewController alloc] init];
NSURLRequest *requestObj = [NSURLRequest requestWithURL:url];
[myWebView loadRequest:requestObj];
myWebView.scalesPageToFit = YES;
[self.view addSubview:myWebView.view];
Maybe try to embed the web view in a modal view controller and present the controller modally. Declare a public NSURLRequest property and set it from the table view delegate method.
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath`
{
YourEmbeddingViewController *evc = [[YourEmbeddingViewController alloc] init]; // subclass of UIViewController
NSURLRequest *requestObj = [NSURLRequest requestWithURL:url];
evc.request = requestObj;
[self presentViewController:evc animated:YES completion:nil];
}
Related
I have a UITableView within a UINavigationController,when I select a cell in the table view,it should slide to a UIWebView
//code in table view delegate(tableviewcontroller)
- (void)tableView:(UITableView *)tableView
didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
NSURL *url = [NSURL URLWithString:#"https://www.baidu.com/"];
self.webViewController.title = #"UIWebViewTest";
self.webViewController.URL = url;
[self.navigationController
pushViewController:self.webViewController animated:YES];
}
self.webViewController was initialized by
- (void)viewDidLoad {
[super viewDidLoad];
//..
//other code
//..
YGGWebViewController *wvc = [self.storyboard
instantiateViewControllerWithIdentifier:#"wvc"];
self.webViewController = wvc;
}
in the YGGWebViewController, I have a NSURL *URL property and override the setter
- (void)setURL:(NSURL *)URL{
_URL = URL;
if (_URL) {
NSURLRequest *req = [NSURLRequest requestWithURL:_URL];
[self.webView loadRequest:req];
}
}
besides,YGGWebViewController also have a UIWebView *webView property linked to a UIWebView in storyboard.
what odd is the web view does not display anything when it slides to the screen in the first time,but it will show the website in the second time（go back to the table view by navigation bar,and select a cell again）.
Environment
xcode-7.0
deployment target-7.0
OS X Yosemite-10.10.5
P.S
if I move the code
if (_URL) {
NSURLRequest *req = [NSURLRequest requestWithURL:_URL];
[self.webView loadRequest:req];
}
to viewDidLoad in YGGWebViewController,it works right.but why?
I have a UITableViewController that needs to open a web view.
In my function I have:
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
LinkViewController *linkViewController = [[LinkViewController alloc] initWithNibName:#"LinkViewController_iPhone" bundle:nil];
[linkViewController.webView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:#"http://www.google.com"]]];
[self.navigationController pushViewController:linkViewController animated:YES];
}
I have connected all outlets and am not getting any warnings however I do not see the page pull up.
However if I go in the actual LinkViewController file and do something like:
- (void)viewDidLoad
{
[super viewDidLoad];
NSString *urlAddress = #"http://www.google.com";
//Create a URL object.
NSURL *url = [NSURL URLWithString:urlAddress];
//URL Requst Object
NSURLRequest *requestObj = [NSURLRequest requestWithURL:url];
//Load the request in the UIWebView.
[self.webView loadRequest:requestObj];
}
everything seems fine. I do not understand why ?
You should add a URL property to your LinkViewController. Then in your table view controller you do this:
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
LinkViewController *linkViewController = [[LinkViewController alloc] initWithNibName:#"LinkViewController_iPhone" bundle:nil];
linkViewController.URL = [NSURL URLWithString:#"http://www.google.com"];
[self.navigationController pushViewController:linkViewController animated:YES];
}
Now in your LinkViewController you do:
- (void)viewDidLoad {
[super viewDidLoad];
//URL Requst Object
NSURLRequest *requestObj = [NSURLRequest requestWithURL:self.URL];
//Load the request in the UIWebView.
[self.webView loadRequest:requestObj];
}
There are two problems with what you had originally:
In the table view controller, you were accessing the webView property before it was initialized. This is why nothing happened.
You were exposing far too much implementation detail of the LinkViewController to the outside world. If you use LinkViewController in many places in your app, you are requiring every user of the class to know to create a URL, create a request, and then tell the internal web view to start loading. All of that logic belongs inside the LinkViewController. Now each user of the class only needs to know to set a simple URL property.
How can I make a "Pull to refresh" in iOS 5 for an UIWebView ? I can't find a tutorial.
I have got a WebView in a Tab Bar application, and I want to refresh the WebView with a "Pull to refresh" like Twitter.
Where can I find a complete tutorial ?
Thank you
I cannot provide a tutorial, maybe I'll write one but I think it was quite simple,
I did this slightly modifying SPPullView.
Here you can grab the files (SPPullView.m and SPPullView.h).
Relevant code in the main UIViewController is something like:
- (void)viewDidLoad
{
[super viewDidLoad];
self.pullView = [[SPPullView alloc] initWithScrollView:self.webView.scrollView];
[self.pullView setDelegate:self];
[self.webView.scrollView addSubview:self.pullView];
[self.webView.scrollView setDelegate:self];
for (UIView *subview in [self.webView.scrollView subviews] ) {
subview.userInteractionEnabled = NO; // used to disable copy/paste, etc inside the webview
}
//[self doYourStuff];
}
//Called when the user pulls to refresh (this is when you should update your data)
- (void) pullViewShouldRefresh: (SPPullView *) view {
[self updateYourStuff];
}
You can also add some logic or properties to prevent the user zooming, or deactivate the pull view temporarily while zooming.
This works very well: http://blog.gomiso.com/2012/03/22/yet-another-pull-to-refresh-library/
I wrote this code and it is working fine. This may help you.
- (void)viewDidLoad
{
[super viewDidLoad];
NSString *fullURL = URL you want to hit;
NSURL *url = [NSURL URLWithString:fullURL];
NSURLRequest *requestObject = [NSURLRequest requestWithURL:url];
webView.delegate = (id)self;
[webView loadRequest:requestObject];
UIRefreshControl *refreshControlOnPull = [[UIRefreshControl alloc] init];
[refreshControlOnPull addTarget:self action:#selector(handleRefresh:) forControlEvents:UIControlEventValueChanged];
[webView.scrollView refreshControlOnPull]; //<- this is point to use. Add "scrollView" property.
}
-(void)handleRefresh:(UIRefreshControl *)refresh {
// Reload my data
NSString *fullURL = The Url you want to hit;
NSURL *url = [NSURL URLWithString:fullURL];
NSURLRequest *requestObject = [NSURLRequest requestWithURL:url];
[webView loadRequest:requestObject];
[refresh endRefreshing];
}
In viewDidLoad, I'm using NSURLRequest and NSURLConnection:
NSURLRequest *site_request =
[NSURLRequest requestWithURL:[NSURL URLWithString:#"http://www.google.com/"]
cachePolicy:NSURLRequestUseProtocolCachePolicy
timeoutInterval:10.0];
NSURLConnection *site_connection =
[[NSURLConnection alloc] initWithRequest:site_request delegate:self];
and then I use
-(void)connection:(NSURLConnection *)site_connection didReceiveData:(NSData *)data
{
site_response = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
}
and I have the whole HTML in site_response.
I want to create an invisible UIWebView which will "open" the page from the NSURLRequest in order to use JavaScript to get content like this:
NSString *myText = [my_webView stringByEvaluatingJavaScriptFromString:
#"document.documentElement......"];
In my .h I have:
UIWebView *my_webview;
#property (nonatomic, retain) UIWebView *my_webview;
and in my .m I have:
#synthesize torrents_webview;
My viewDidLoad after NSURLRequest has
[my_webview loadRequest:site_request];
and I use
-(void)webViewDidFinishLoad:(UIWebView *)webView
{
//an alertview here
}
in order to be sure it works. But nothing happens. It doesn't give an alert view.
What am I doing wrong?
webViewDidFinishLoad: is a method of the UIWebView delegate. You are not setting the delegate anywhere in the code you have shown.
#interface YourClass : UIViewController <UIWebViewDelegate>
...
- (void)loadView
{
self.webView.delegate = self;
}
...
- (void)dealloc
{
self.webView.delegate = nil;
}
Also if you use NSURLRequest you're going to get the page again. But there's no need to use NSURLConnection, just go straight to loading the UIWebVIew using the NSURLRequest.
Or if you must use NSURLConnection then when the file has downloaded save it to disk and use LoadHTMLString to load the contents.
ViewController.h
#interface TopTorrents_ViewController : UIViewController <UITableViewDelegate, UITableViewDataSource,UIWebViewDelegate>
{
UIWebView *torrents_webview;
}
#property (nonatomic, retain) UIWebView *torrents_webview;
ViewController.m
#synthesize torrents_webview;
- (void)viewDidLoad
{
torrents_webview.delegate = self;
NSURLRequest *site_request = [NSURLRequest requestWithURL:[NSURL URLWithString:#"http://www.google.gr/"] cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:10.0];
[torrents_webview loadRequest:site_request];
[super viewDidLoad];
}
-(void)webViewDidFinishLoad:(UIWebView *)webView
{
NSString *myText = [torrents_webview stringByEvaluatingJavaScriptFromString:#"document.getElementsByTagName('body')[0]"];
UIAlertView *my_alert = [[UIAlertView alloc] initWithTitle:#"mytitle" message:myText delegate:nil cancelButtonTitle:#"my button" otherButtonTitles:nil,nil];
[my_alert show];
}
this is my updated code... thanks
Got a Problem that my activity indicator does not show up anyone a idea?
ViewController.h
#import <UIKit/UIKit.h>
#interface ViewController : UIViewController
{
IBOutlet UIWebView *webview;
IBOutlet UIActivityIndicatorView *active;
UIAlertView *alert_start;
}
ViewController.m
// Do any additional setup after loading the view, typically from a nib.
[webview loadRequest:[NSURLRequest requestWithURL:[NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:#"home-de" ofType:#"html"]isDirectory:NO]]];
- (void)webViewDidStartLoad:(UIWebView *) webview
{
[UIApplication sharedApplication].networkActivityIndicatorVisible = YES;
[active startAnimating];
}
- (void)webViewDidFinishLoad:(UIWebView *) webview
{
[UIApplication sharedApplication].networkActivityIndicatorVisible = NO;
[active stopAnimating];
}
- (IBAction)tele_button:(id)sender
{
//Local HTML Call Button
NSURLRequest *theRequest = [NSURLRequest requestWithURL:[NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:#"phone" ofType:#"html"]isDirectory:NO]];
[self->webview loadRequest:theRequest];
}
- (IBAction)mail_button:(id)sender
{
//Mail App Mail Button
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:#"mailto://info#optibelt.com"]];
}
- (IBAction)web_button:(id)sender
{
//Local HTML Button
NSURLRequest *theRequest = [NSURLRequest requestWithURL:[NSURL URLWithString: #"http://optibelt.com"]];
[self->webview loadRequest:theRequest];
}
- (IBAction)news_button:(id)sender
{
//local Home Button
NSURLRequest *theRequest = [NSURLRequest requestWithURL:[NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:#"home-de" ofType:#"html"]isDirectory:NO]];
[self->webview loadRequest:theRequest];
}
The activity indicator is set as behavior animating (checked) and hides when stopped (checked)
Would be great if i get some help :)
You might want to check a couple of things. First, check to see if the activity indicator outlet is connected in IB. Second, check to see if the activity indicator is above the UIWebview. It could be that it is being covered up. You also might want to check that it isn't hidden in IB.
Good luck