I have a WKWebView in my application. I don't use UIWebView, because for some strange reason it doesn't open properly a web page with a lot of JS code in it.
When I tap on the link with custom url scheme "scm://", it does nothing...
My code:
- (void)viewDidLoad {
// ...
WKWebViewConfiguration *configuration = [WKWebViewConfiguration new];
if ([configuration respondsToSelector:@selector(setDataDetectorTypes:)])
[configuration setDataDetectorTypes:WKDataDetectorTypeLink];
myWebView = [[WKWebView alloc] initWithFrame:webFrame configuration:configuration];
myWebView.navigationDelegate = self;
[self.view addSubview:myWebView];
}
#pragma mark - WKNavigationDelegate
- (void)webView:(WKWebView *)webView decidePolicyForNavigationAction:(WKNavigationAction *)navigationAction decisionHandler:(void (^)(WKNavigationActionPolicy))decisionHandler
{
NSURL *requestURL = navigationAction.request.URL;
UIApplication *app = [UIApplication sharedApplication];
if ([requestURL.scheme.lowercaseString isEqualToString:@"scm"] && [app canOpenURL:requestURL]) {
[app openURL:requestURL];
decisionHandler(WKNavigationActionPolicyCancel);
}
else
decisionHandler(WKNavigationActionPolicyAllow);
}
- (void)webView:(WKWebView *)webView didFinishNavigation:(WKNavigation *)navigation
{
[UIApplication sharedApplication].networkActivityIndicatorVisible = NO;
}
- (void)webView:(WKWebView *)webView didFailNavigation:(WKNavigation *)navigation withError:(NSError *)error
{
[self handleError:error];
}
- (void)webView:(WKWebView *)webView didFailProvisionalNavigation:(WKNavigation *)navigation withError:(NSError *)error
{
[self handleError:error];
}
#pragma mark - Handle web view errors.
- (void)handleError:(NSError *)error
{
UIApplication *app = [UIApplication sharedApplication];
app.networkActivityIndicatorVisible = NO;
NSURL *failedUrl = error.userInfo[NSURLErrorFailingURLErrorKey];
if ([failedUrl.scheme.lowercaseString isEqualToString:@"scm"]) {
[app openURL:failedUrl];
}
}
When I click custom url, handleError() is never called, neither decidePolicyForNavigationAction().
Ok, figured this out... happens that the link was opening in new window, so adding next code along with setting UIDelegate made it work
// Somewhere in viewDidLoad()...
myWebView.UIDelegate = self;
}
- (WKWebView *)webView:(WKWebView *)webView createWebViewWithConfiguration:(WKWebViewConfiguration *)configuration forNavigationAction:(WKNavigationAction *)navigationAction windowFeatures:(WKWindowFeatures *)windowFeatures
{
NSLog(@"createWebViewWithConfiguration %@ %@", navigationAction, windowFeatures);
if (!navigationAction.targetFrame.isMainFrame) {
[UIApplication sharedApplication].networkActivityIndicatorVisible = YES;
[(WKWebView *)_webView loadRequest:navigationAction.request];
}
return nil;
}