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我無法在wkwebview中加載本地epub文件（來自文檔目錄）。它在模擬器中工作，但不在設備中。我知道這是來自here的iOS 8的一個bug。它已經解決了iOS 8？請幫我，我該怎麼做。我的設備得到了錯誤的 -在WKWebView中加載本地文件在設備中不起作用
The operation couldn't be completed. (KCFErrorDomainCFNetwork error 1.)
這裏是代碼片段 -
-(void)viewWillDisappear:(BOOL)animated {
[super viewWillDisappear:animated];
[self.webView removeObserver:self forKeyPath:@"loading"];
[self.webView removeObserver:self forKeyPath:@"estimatedProgress"];
}
-(void)viewWillAppear:(BOOL)animated {
[super viewWillAppear:animated];
[self.webView addObserver:self forKeyPath:@"loading" options:NSKeyValueObservingOptionNew context:nil];
[self.webView addObserver:self forKeyPath:@"estimatedProgress" options:NSKeyValueObservingOptionNew context:nil];
[self.progressView setProgress:0.0f animated:NO];
if ([self.documentDirectory checkEpubFileIfExistsAtPath:self.epubFolder]) {
NSString *filePath = [NSString stringWithFormat:@"%@/%@/%@/OEBPS/%@", [self.documentDirectory getDocumentsDirectory], self.epubFolder, self.epubName, [_html_link substringToIndex:[_html_link rangeOfString:@"#"].location]];
//Loading webview with progress bar action
if ([_html_link rangeOfString:@"#"].location != NSNotFound) {
self.tag = [_html_link substringFromIndex:[_html_link rangeOfString:@"#"].location];
NSURL *URL = [NSURL fileURLWithPath:filePath];
NSURLRequest *request = [NSURLRequest requestWithURL:URL];
[self.webView loadRequest:request];
}
} else {
NSDictionary *object = [self.alertMessages getMessageObj:@"translationNotAvailable"];
[self presentViewController:[self.alertController alertWithCustomOkayAction:[object objectForKey:@"title"] message:[object objectForKey:@"msg"] callback:^(void) {
[self dismissViewControllerAnimated:YES completion:nil];
}] animated:YES completion:nil];
}
}
//Constraints for Web View
- (void) setConstraintsForWebView {
[self.webView setTranslatesAutoresizingMaskIntoConstraints:NO];
WKWebView *webView = self.webView;
UIProgressView *progressView = self.progressView;
UIToolbar *toolBar = self.toolBar;
[self.view addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|-8-[webView]-8-|" options:0 metrics:nil views:NSDictionaryOfVariableBindings(webView)]];
[self.view addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"V:[progressView]-0-[webView]-[toolBar]" options:0 metrics:nil views:NSDictionaryOfVariableBindings(progressView, webView, toolBar)]];
}
- (void)viewDidLoad {
[super viewDidLoad];
//Do any additional setup after loading the view.
self.alertController = [AlertController new];
self.alertMessages = [AlertMessages new];
self.documentDirectory = [DocumentDirectory new];
self.languageController = [LanguageController new];
//Set observer for webview load
self.webView = [[WKWebView alloc] initWithFrame:CGRectZero];
self.webView.navigationDelegate = self;
[self.view insertSubview:self.webView belowSubview:self.progressView];
[self setConstraintsForWebView];
}
#pragma mark KVO
- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context {
if ([keyPath isEqualToString:@"loading"]) {
[[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:self.webView.loading];
} else if ([keyPath isEqualToString:@"estimatedProgress"]) {
self.progressView.hidden = self.webView.estimatedProgress == 1;
self.progressView.progress = self.webView.estimatedProgress;
}
}
#pragma mark Web view navigation delegate
- (void)webView:(WKWebView *)webView didFinishNavigation:(WKNavigation *)navigation {
[self.progressView setProgress:0.0f animated:NO];
if (self.tag) {
[self.webView evaluateJavaScript:[NSString stringWithFormat:@"window.location.hash='%@'", self.tag] completionHandler:nil];
}
}
- (void)webView:(WKWebView *)webView didFailProvisionalNavigation:(WKNavigation *)navigation withError:(NSError *)error {
[self presentViewController:[self.alertController alertWithAction:@"Error!" message:error.localizedDescription] animated:YES completion:nil];
}