源码0604-12-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;
    [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