ios -WKWebView 高度 准确,留有空白的解决方案

#import "ViewController.h"

#import <WebKit/WebKit.h>

@interface ViewController ()<WKNavigationDelegate>

@property (nonatomic, strong)WKWebView *webView;

@end

@implementation ViewController

- (void)viewDidLoad

{

_webView = [[WKWebView alloc]initWithFrame:CGRectMake(0, 0, CGRectGetWidth(self.view.frame), 1)];

_webView.UIDelegate = self;

_webView.navigationDelegate = self;

[self.view addSubview:_webView];

NSString *url = [NSString stringWithFormat:@"https://mdetail.tmall.com/templates/pages/desc?id=13128565333"];

NSLog(@"dfurk:%@",url);

[self.webView loadRequest:[[NSURLRequest alloc] initWithURL:[NSURL URLWithString:url]]];

[self.webView.scrollView addObserver:self forKeyPath:@"contentSize" options:NSKeyValueObservingOptionNew context:nil];

}

- (void)dealloc {

[self.webView.scrollView removeObserver:self forKeyPath:@"contentSize" context:nil];

}

- (void)observeValueForKeyPath:(NSString *)keyPath

ofObject:(id)object

change:(NSDictionary *)change

context:(void *)context

{

if (object == self.webView.scrollView && [keyPath isEqual:@"contentSize"]) {

// we are here because the contentSize of the WebView's scrollview changed.

UIScrollView *scrollView = self.webView.scrollView;

self.webView.frame = CGRectMake(0, 0, scrollView.contentSize.width, scrollView.contentSize.height);

NSLog(@"New contentSize: %f x %f", scrollView.contentSize.width, scrollView.contentSize.height);

}

}

/*

#pragma mark - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {

// Get the new view controller using [segue destinationViewController].

// Pass the selected object to the new view controller.

}

*/

@end