Undeclared Identifier 'webview' - ios

I am building a tab bar application with a different pdf in each tab. I have two sets of view controllers. Each have this relative code
#import "SecondViewController.h"
#interface SecondViewController ()
#end
#implementation SecondViewController
- (void)viewDidLoad
{
[super viewDidLoad];
NSString *path = [[NSBundle mainBundle] pathForResource:#"Winter_Newsletter"
ofType:#"pdf"];
NSURL *url = [NSURL fileURLWithPath:path];
NSURLRequest *request = [NSURLRequest requestWithURL:url];
[webView loadRequest:request];
[webview setScalesPageToFit:YES];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#end
I keep receiving an error "undeclared identifier 'web view'" What am I doing Wrong?

You are showing in the code two versions of webView(capital V) and webview(small v)
[webView loadRequest:request];
[webview setScalesPageToFit:YES];
And if you are using auto-synthesize then it sould be
self.webView or _webView

And also, don't forget to make a property of the web view and control drag to hook it up!

Related

white screen on simulator iphone Xcode

I watched this video on YouTube :
Xcode How to Create a Webview for iOS Applications
I followed video but if I run my app on simulator, only I see white screen.
This ViewController.h
//
// ViewController.h
//
#import <UIKit/UIKit.h>
#interface ViewController : UIViewController
{
IBOutlet UIWebView *myWebView;
}
#end
//
// ViewController.m
//
#import "ViewController.h"
#interface ViewController ()
#end
#implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
NSURL *myURL = [NSURL URLWithString:#"http://website.com"]; NSURLRequest *myRequest = [NSURLRequest requestWithURL:myURL]; myWebView.scalesPageToFit = YES; [myWebView loadRequest:myRequest];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#end
Can you get me fix this error?
tHis ViewController.m
//
// ViewController.m
//
#import "ViewController.h"
#interface ViewController ()
#end
#implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
NSURL *myURL = [NSURL URLWithString:#"http://website.com"]; NSURLRequest *myRequest = [NSURLRequest requestWithURL:myURL]; myWebView.scalesPageToFit = YES; [myWebView loadRequest:myRequest];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#end
You have to actually load the request after you create it!
NSURL *url = [NSURL URLWithString:#"http://yoururl.com"];
NSURLRequest *request = [NSURLRequest requestWithURL:url];
[self.webView loadRequest:request];

Open external link from UIWebView in Safari

I want to modify my code in order to open the external links on Safari instead of the in-app browser of my app. The html files are loaded from an internal path, so I don't know how to make the app understand that all the external links have to be opened in safari.
This is my ViewController.m
#import "ViewController.h"
#interface ViewController ()
#end
#implementation ViewController
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
NSString *fullURL = [[NSBundle mainBundle] pathForResource:#"index" ofType:#"html"];
NSURL *url = [NSURL fileURLWithPath:fullURL];
NSURLRequest *requestObj = [NSURLRequest requestWithURL:url];
[_viewWeb loadRequest:requestObj];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#end
How should I modify it?
Thanks!
You need to handle this in the UIWebView delegate method and check with the UIWebViewNavigationType.
- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType{
if(navigationType == UIWebViewNavigationTypeLinkClicked){
[MAIN_APPLICATION_DELEGATE openURL:request.URL];
}
}

Issues initializing UIWebView inside ViewController

I want to initialize a UIWebview object inside of my WebViewController. I'm having a bit of trouble initializing it, and directing it to the URL that is sent to it from the previous ViewController.
In the viewDidLoad of my WebViewController, I attempt to initialize it with the following:
UIWebView *tempWebview = [[UIWebView alloc]initWithFrame:theFrame];
NSURL *url = [NSURL URLWithString:_itemURL];
NSURLRequest *urlRequest = [NSURLRequest requestWithURL:url];
self.myWebView = tempWebview;
[tempWebview loadRequest:urlRequest];
_myWebView.delegate=self;
[WebViewController loadRequest:urlRequest];
However, this gives me errors stating:
use of undeclared identifier'theFrame', and no known class method for selector loadRequest.
Full code is below:
WebViewController.h:
#import <UIKit/UIKit.h>
#import "MatchCenterViewController.h"
#interface WebViewController : UIViewController
#property (strong, nonatomic) NSURL *itemURL;
#property (weak, nonatomic) IBOutlet UIWebView *myWebView;
#end
WebViewController.m:
#import "WebViewController.h"
#interface WebViewController ()
#end
#implementation WebViewController
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
UIWebView *tempWebview = [[UIWebView alloc]initWithFrame:theFrame];
NSURL *url = [NSURL URLWithString:_itemURL];
NSURLRequest *urlRequest = [NSURLRequest requestWithURL:url];
self.myWebView = tempWebview;
[tempWebview loadRequest:urlRequest];
_myWebView.delegate=self;
[WebViewController loadRequest:urlRequest];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
/*
#pragma mark - Navigation
// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
// Get the new view controller using [segue destinationViewController].
// Pass the selected object to the new view controller.
}
*/
#end
First you need to define that you are going to use the UIWebView Delegate in your .h file as:
#interface WebViewController : UIViewController <UIWebViewDelegate>
When you already have a webView defined in your Xib file, why are you creating another UIWebView and assigning it to the IBOutlet's webView? You could simply do:
self.myWebView.delegate = self; //Note that I have set the delegate first before calling LoadRequest
NSURL *url = [NSURL URLWithString:#"http://www.google.com"];
NSURLRequest *request = [NSURLRequest requestWithURL:url];
[self.myWebView setScalesPageToFit:YES];
[self.myWebView loadRequest:request];

using buttons to open webviews

Hey guys, i'm trying to make the buttons on my project to open a different webview url. I'm new to iOS programming, but i've used andriod programming. Is this possible? I've a ready created another webview view that sits in the supporting files folder.
Here is my code below
Viewcontroller.m
#import "ViewController.h"
#implementation ViewController
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Release any cached data, images, etc that aren't in use.
}
#pragma mark - View lifecycle
-(void)viewDidLoad
{
NSString *urlString = #"http://www.athletic-profile.com/Application";
//Create a URL object.
NSURL *url = [NSURL URLWithString:urlString];
//URL Requst Object
NSURLRequest *webRequest = [NSURLRequest requestWithURL:url];
//Load the request in the UIWebView.
[webView loadRequest:webRequest];
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
}
- (void)viewDidUnload
{
[super viewDidUnload];
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (void)viewWillAppear:(BOOL)animated
{
[super viewWillAppear:animated];
}
- (void)viewDidAppear:(BOOL)animated
{
[super viewDidAppear:animated];
}
- (void)viewWillDisappear:(BOOL)animated
{
[super viewWillDisappear:animated];
}
- (void)viewDidDisappear:(BOOL)animated
{
[super viewDidDisappear:animated];
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
// Return YES for supported orientations
return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown);
}
#synthesize webView;
#end
Add a button to your View then give a connection to it. In the action method just write your code
-(IBAction*)yourButtonActionMethod:(id)sender
{
[UIWebView *aWebView =[[UIWebView alloc] initWithFrame:CGRectMake(x,y,width,height)];
aWebView.delegate=nil;
NSString *urlString = #"http://www.athletic-profile.com/Application";
//Create a URL object.
NSURL *url = [NSURL URLWithString:urlString];
//URL Requst Object
NSURLRequest *webRequest = [NSURLRequest requestWithURL:url];
//Load the request in the UIWebView.
[aWebView loadRequest:webRequest];
[self.view addSubView:aWebView];
}
Firstly you can drag & drop UIButton in First Class & create action of that Button then create a new class for UIWebView in which you want to open you url named your choice which is subclass of UIViewController then into your .Xib or Storyboard you just drag & drop the UIWebView then create outlet of UIWebView after you write this code in first class of that button's action :-
- (IBAction *) firstButton:(id) sender
{
NSString *urlString = #"http://www.athletic-profile.com/Application";
//Create a URL object.
NSURL *url = [NSURL URLWithString:urlString];
//URL Request Object
NSURLRequest *webRequest = [NSURLRequest requestWithURL:url];
//Load the request in the UIWebView.
[webView loadRequest:webRequest];
}

Activity Indicator does not show

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

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