iOS WKWebView简单实现 







#import “ViewController.h”
#import <WebKit/WebKit.h>

@interface ViewController ()
@property (nonatomic,strong)WKWebView *webView;
@end

@implementation ViewController

(void)viewDidLoad {
[super viewDidLoad];

_webView = [[WKWebView alloc] initWithFrame:self.view.bounds];//初始化
[self.view addSubview:_webView];

//1.网络
_webView.allowsBackForwardNavigationGestures = YES;
 NSMutableURLRequest * request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"https://www.baidu.com/"]]; 

[_webView loadRequest:request];  


//2.本地html　
 //获取bundlePath 路径
    NSString *bundlePath = [[NSBundle mainBundle] bundlePath];
    
    //获取本地html目录 basePath
    NSString *basePath = [NSString stringWithFormat: @"%@/dist", bundlePath];
    
    //获取本地html目录 baseUrl
    NSURL *baseUrl = [NSURL fileURLWithPath: basePath isDirectory: YES];
    
    NSLog(@"%@", baseUrl);
    //html 路径
    
    NSString *indexPath = [NSString stringWithFormat: @"%@/index.html", basePath];
    //html 文件中内容
    NSString *indexContent = [NSString stringWithContentsOfFile: indexPath encoding: NSUTF8StringEncoding error:nil];
    //显示内容
    [webview loadHTMLString: indexContent baseURL: baseUrl];

}




 


WKWebView实现背景透明




@interface 你的页面 ()<WKNavigationDelegate>



 //遵循协议


    _webView.navigationDelegate = self;


//关键一句
self.webView.opaque = NO;
//或者
[self.webView setOpaque:NO];

// 似乎这两句没什么用
    self.webView.backgroundColor = [UIColor clearColor];
    self.webView.scrollView.backgroundColor = UIColor.clearColor;




亲测有效


如果你要实现网页文件显示，比如说这个 


https://img.book118.com/sr1/M00/06/0A/wKh2AlywRP2IFAFzAAEuKOCu_hcAAcEngFumBwAAS5A024.png


那么可以这样实现




#import <UIKit/UIKit.h>  
#import <WebKit/WebKit.h>  
  
@interface ViewController : UIViewController  
  
@property (nonatomic, strong) WKWebView *webView;  
  
@end  
  
@implementation ViewController  
  
- (void)viewDidLoad {  
    [super viewDidLoad];  
  
    // 初始化WKWebView并添加到视图  
    WKWebViewConfiguration *configuration = [[WKWebViewConfiguration alloc] init];  
    self.webView = [[WKWebView alloc] initWithFrame:self.view.bounds configuration:configuration];  
    [self.view addSubview:self.webView];  
  
    // 创建包含<img>标签的HTML字符串  
    NSString *imageUrl = @"https://img.book118.com/sr1/M00/06/0A/wKh2AlywRP2IFAFzAAEuKOCu_hcAAcEngFumBwAAS5A024.png";  
    NSString *htmlString = [NSString stringWithFormat:@"<html><body><img src='%@' style='width:100%%;height:auto;'/></body></html>", imageUrl];  
  
    // 加载HTML字符串到WKWebView  
    [self.webView loadHTMLString:htmlString baseURL:nil];  
}  
  
@end




 






        

            posted on 
2020-06-05 11:14 
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