// ViewController.m // 12-掌握-webView #import "ViewController.h" @interface ViewController () <UIWebViewDelegate> @property (weak, nonatomic) IBOutlet UIWebView *webView; @property (weak, nonatomic) IBOutlet UIBarButtonItem *backItem; @property (weak, nonatomic) IBOutlet UIBarButtonItem *forward; @end @implementation ViewController - (IBAction)back:(id)sender { [self.webView goBack]; } - (IBAction)forward:(id)sender { [self.webView goForward]; } - (IBAction)refresh:(id)sender { [self.webView reload]; } - (void)viewDidLoad { [super viewDidLoad]; // Native(OC+Swift) + HTML5 self.webView.delegate = self; [self.webView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"http://www.baidu.com"]]]; } #pragma mark - <UIWebViewDelegate> - (void)webViewDidFinishLoad:(UIWebView *)webView { NSLog(@"%s", __func__); self.backItem.enabled = webView.canGoBack; self.forward.enabled = webView.canGoForward; } - (void)webViewDidStartLoad:(UIWebView *)webView { NSLog(@"%s", __func__); } - (void)webView:(UIWebView *)webView didFailLoadWithError:(NSError *)error { NSLog(@"%s", __func__); self.backItem.enabled = webView.canGoBack; self.forward.enabled = webView.canGoForward; } @end
01-掌握-webView
// ViewController.m // 12-掌握-webView #import "ViewController.h" @interface ViewController () <UIWebViewDelegate> @property (weak, nonatomic) IBOutlet UIWebView *webView; @property (weak, nonatomic) IBOutlet UIBarButtonItem *backItem; @property (weak, nonatomic) IBOutlet UIBarButtonItem *forward; @end @implementation ViewController - (IBAction)back:(id)sender { [self.webView goBack]; } - (IBAction)forward:(id)sender { [self.webView goForward]; } - (IBAction)refresh:(id)sender { [self.webView reload]; } - (void)viewDidLoad { [super viewDidLoad]; // Native(OC+Swift) + HTML5 self.webView.delegate = self; // 网页内容缩小到适应整个设备屏幕 // self.webView.scalesPageToFit = YES; // 检测各种特殊的字符串：比如电话、网站 self.webView.dataDetectorTypes = UIDataDetectorTypeAll; [self.webView loadRequest:[NSURLRequest requestWithURL:[[NSBundle mainBundle] URLForResource:@"test" withExtension:@"html"]]]; //去bundle里面找html页面 // [self.webView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"http://www.520it.com"]]]; // [self.webView loadRequest:[NSURLRequest requestWithURL:[NSURL fileURLWithPath:@"/Users/xiaomage/Desktop/test.pptx"]]]; // [self.webView loadData:<#(NSData *)#> MIMEType:<#(NSString *)#> textEncodingName:<#(NSString *)#> baseURL:<#(NSURL *)#>]; // [self.webView loadHTMLString:@"<html><body><div style="color: red; font-size:10px; border:1px solid blue;">哈哈哈哈哈</div></body></html>" baseURL:nil]; self.webView.scrollView.contentInset = UIEdgeInsetsMake(20, 0, 0, 0); } #pragma mark - <UIWebViewDelegate> - (void)webViewDidFinishLoad:(UIWebView *)webView { // NSLog(@"%s", __func__); self.backItem.enabled = webView.canGoBack; self.forward.enabled = webView.canGoForward; } - (void)webViewDidStartLoad:(UIWebView *)webView { // NSLog(@"%s", __func__); } - (void)webView:(UIWebView *)webView didFailLoadWithError:(NSError *)error { // NSLog(@"%s", __func__); self.backItem.enabled = webView.canGoBack; self.forward.enabled = webView.canGoForward; } /** * 每当webView即将发送一个请求之前，都会调用这个方法 * 返回YES：允许加载这个请求 * 返回NO：禁止加载这个请求 */ - (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType { // NSLog(@"%@", request.URL); if ([request.URL.absoluteString containsString:@"life"]) return NO; // JS JavaScript return YES; } @end