源碼0604-12-掌握-webView

時間 2019-11-14

標籤源碼掌握 webview 简体版

原文原文鏈接

//  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-webViewhtml

//  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;
    // 網頁內容縮小到適應整個設備屏幕 // self.webView.scalesPageToFit = YES; // 檢測各類特殊的字符串：好比電話、網站
    self.webView.dataDetectorTypes = UIDataDetectorTypeAll;
    
    [self.webView loadRequest:[NSURLRequest requestWithURL:[[NSBundle mainBundle] URLForResource:@"test" withExtension:@"html"]]]; //去bundle裏面找html頁面
    
//    [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;
}

/**
 * 每當webView即將發送一個請求以前，都會調用這個方法 * 返回YES：容許加載這個請求 * 返回NO：禁止加載這個請求 */
- (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

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