I have a UIWebView inside my app, this loads a website which is trying to get the current gps location of the user. On Safari it presents a popup which asks if you want to give your current location to the website, on my UIWebView no such thing happens and my website is not able to get the gps location of the user. How can I accomplish this? I am new to ios developing so bear with me if this is something very easy to do, but I couldnt find an example so far.
Here is what I have so far:
ViewController.h
#import <UIKit/UIKit.h>
#interface ViewController : UIViewController {
IBOutlet UIWebView *_webView;
}
#end
ViewController.m
#import "ViewController.h"
#interface ViewController ()
#end
#implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
[_webView loadRequest:[[NSURLRequest alloc] initWithURL:[[NSURL alloc] initWithString:#"http://google.com"]]];
// Do any additional setup after loading the view, typically from a nib.
}
- (IBAction)goBack:(id)sender {
if ([_webView canGoBack]) {
[_webView goBack];
}
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#end
Edit your app's info.plist and set
NSLocationWhenInUseUsageDescription "String you want to explain why you need location."
Related
Does anyone know how to leave pdf with webview
this app is done with xcode,i learn it from internet
but I got a issue, when I click a download link
it would open the file in app , but I can't go back to
previous page , I can't do anything but close app & restart
So what should I add to make app go back to previous page
here is my app ,
viewcontroller.h
#import <UIKit/UIKit.h>
#interface ViewController : UIViewController
#property (weak, nonatomic) IBOutlet UIWebView *webview;
#end
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.
NSURL *url = [NSURL URLWithString:#"http://mywebsite/index.php"];
[self.webview loadRequest:[NSURLRequest requestWithURL:url]];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#end
I am creating a simple UIWebView like shown.
All works fine but the websites are corrupted. it looks like, the images arent loaded.
Curious is, that in the Browser, the same page is loading fine O_o Any Ideas?
#import "WebViewController.h"
#interface WebViewController ()
#property NSURL *adUrl;
#property (weak, nonatomic) IBOutlet UIWebView *webView;
#end
#implementation WebViewController
-(id) initWithUrl:(NSURL *)url
{
self = [super init];
if (self)
{
self.adUrl = [NSURL new];
self.adUrl = url;
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
[self.webView loadRequest:[NSURLRequest requestWithURL:self.adUrl]];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#end
Task solved. The Problem was, that an old Class which was responsible for WebCaching was disturbing the redirect and on that way it suppressed the load of baseURL objects. Thanks for givin me ideas how to solve.
Cheers
when i build my apps with one page the code works fine, but when i use more than one view the app will not display the webpage, evan tough i am using identical code
in view controller.h i have this code
#import <UIKit/UIKit.h>
#interface ViewController : UIViewController{
IBOutlet UIWebView *webview;
}
#end
in view controlled.m i have this code
#import "ViewController.h"
#interface ViewController ()
#end
#implementation ViewController
- (void)viewDidLoad
{
[super viewDidLoad];
[webview loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:#"http://www.twitter.com/GeekyLemon"]]];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#end
now this code works fine and is the same in the other project yet the one with multiple views won't work.
Have you checked these points :
have you set the controller as a WebViewDelegate ?
Did you linked the webview from storyboard to your IBOutlet in controller ?
When you're debugging, is the instance of your webview different from nil ?
Its hard to fix your issue without a detailed description, but try to add this method into .m file. :
- (void)viewWillAppear:(BOOL)animated {
[super viewWillAppear:animated];
[webview loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:#"http://www.twitter.com/GeekyLemon"]]];
}
and from viewDidLoad remove this line : [webview loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:#"http://www.twitter.com/GeekyLemon"]]];
viewDidLoad is invoking only once I suppose that this issue apper when you go to other ViewController and then go back.
I'm relatively new to programming in general, but I've attempted to find the answer to this and have failed to no end.
So basically I am attempting to create an application that has a map view scene, and that works fine. I then have another scene that is for web view. So when you go to the mapview scene there is a button that takes you to the webview scene.
The webview scene, however is not loading the web page at all, although when I create the webview part of the application in a different project with no other coding involved, it works just fine.
Here is the coding I have so far:
#import <UIKit/UIKit.h>
#import <MapKit/MapKit.h>
#interface ViewController : UIViewController {
MKMapView * mapview; IBOutlet UIWebView *webview;
}
#property (nonatomic, retain) IBOutlet UIWebView*webview;
#property (nonatomic, retain) IBOutlet MKMapView *mapview;
-(IBAction)setMap:(id)sender;
-(IBAction)getlocation;
#end
--------
#implementation ViewController
#synthesize webview;
#synthesize mapview;
-(IBAction) getlocation {
mapview.showsUserLocation= YES;
}
-(IBAction)setMap:(id)sender {
switch(((UISegmentedControl *) sender).selectedSegmentIndex) {
case 0:
mapview.mapType= MKMapTypeStandard;
break;
case 1:
mapview.mapType= MKMapTypeSatellite;
break;
case 2:
mapview.mapType= MKMapTypeHybrid;
break;
default:
break;
}
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Release any cached data, images, etc that aren't in use.
}
#pragma mark - View lifecycle
- (void)viewDidLoad
{
[super viewDidLoad];
[webview loadRequest:[NSURLRequest requestWithURL: [NSURL URLWithString: #"http://www.google.com"]]];
// Do any additional setup after loading the view, typically from a nib.
}
If you could help, would be greatly appreciated. Let me know if elaboration is required.
First make sure viewDidLoad is executing. There are some situations where it will not be executed.
Then check if webview is nil inside viewDidLoad. Most likely this is your problem. You probably aren't setting it properly, or you're setting it after viewDidLoad executes.
Best way to debug this is just to stick a breakpoint on the loadRequest line in your code, and have a look to see if:
it gets to your breakpoint at all
that the webview variable is not 0x00000000000
PS: you should delete these lines of code:
MKMapView * mapview; IBOutlet UIWebView *webview;
-(IBAction)setMap:(id)sender;
#synthesize webview;
#synthesize mapview;
They are not needed anymore in the latest version of Xcode and wherever you learned it from is outdated.
Also, use self.webview instead of just webview. Accessing it directly is dangerous and can cause bugs.
Create webView programmatically:
add in viewDidLoad:
UIWebView *webView = [[UIWebView alloc] initWithFrame:self.view.bounds];
[webView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:#"http://google.co.uk"]]];
[self.view addSubview:webView];
please check web view delegate method
[webview setDelegate:self];
I have a one button on my main storyboard. I'm pretty sure it's linked up correctly but when I run the simulator and hit the button, it does nothing. What am I missing to get the button to open Safari?
Viewcontroller.h
#import <UIKit/UIKit.h>
#interface testViewController : UIViewController
- (IBAction)openSafari:(id)sender;
#end
Viewcontroller.m
#import "testViewController.h"
#interface testViewController ()
#end
#implementation testViewController
- (void)viewDidLoad
{
[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.
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown);
}
- (IBAction)openSafari:(id)sender {
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:#"www.google.com"]];
}
#end
A URL needs a method as well as an address, so try #"http://www.google.com". To prove whether your action is hooked up right, print a log message from the method (or use a breakpoint).