#import "ViewController.h"
#import <WebKit/WebKit.h>
@interface ViewController ()<WKNavigationDelegate>
@property(nonatomic,strong) WKWebView* webView;
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
//sreen是主屏幕的范围
CGRect screen = [[UIScreen mainScreen] bounds];
//按钮栏
CGFloat buttonBarWidth = 300;
UIView* buttonBar = [[UIView alloc]initWithFrame:CGRectMake((screen.size.width - buttonBarWidth)/2,50, buttonBarWidth, 30)];
buttonBar.backgroundColor = [UIColor grayColor];
[self.view addSubview:buttonBar];
//按钮栏按钮
UIButton* buttonLoadRequest = [UIButton buttonWithType:UIButtonTypeSystem];
[buttonLoadRequest setTitle:@"wedding" forState:UIControlStateNormal];
buttonLoadRequest.frame = CGRectMake((buttonBarWidth-80)/2, 0, 80, 30);
[buttonLoadRequest addTarget:self action:@selector(testLoadRequest:) forControlEvents:UIControlEventTouchUpInside];
[buttonBar addSubview:buttonLoadRequest];
//添加WKWebView到视图中
self.webView = [[WKWebView alloc] initWithFrame:CGRectMake(0, 95, screen.size.width, screen.size.height-80)];
[self.view addSubview:self.webView];
}
//实现按钮点击事件方法，实现网络资源加载，一共分为四步
-(void)testLoadRequest:(id)sender{
NSURL * url = [NSURL URLWithString:@"http://www.studynumber.com"];
NSURLRequest * request = [NSURLRequest requestWithURL:url];
[self.webView loadRequest:request];
self.webView.navigationDelegate = self;
}
//下面的委托协议是固定不变的
#pragma mark -- 实现WKNavigationDelegate委托协议
//开始加载时调用
-(void)webView:(WKWebView *)webView didStartProvisionalNavigation:(null_unspecified WKNavigation *)navigation{
NSLog(@"开始加载");
}
//当内容开始返回时调用
-(void)webView:(WKWebView *)webView didCommitNavigation:(null_unspecified WKNavigation *)navigation{
NSLog(@"内容开始返回");
}
//加载完成之后调用
-(void)webView:(WKWebView *)webView didFinishNavigation:(null_unspecified WKNavigation *)navigation{
NSLog(@"加载完成");
}
//加载失败时调用
-(void)webView:(WKWebView *)webView didFailLoadWithError:(nonnull NSError *)error{
NSLog(@"加载失败 error : %@",error.description);
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
@end