IOS 设置UIViewController为配景半透明浮层弹窗，检察富文本图片详情
使用场景：UIViewController1 打开 UIViewController2（配景半透明弹窗）案例：打开富文本网页<img>图片的url检察图片详情
WKWebView WKNavigationDelegate代理方法设置js代码点击事件
///注册添加图片标签点击js方法
- (void)webView:(WKWebView *)webView didFinishNavigation:(WKNavigation *)navigation{
///js添加图片点击事件
NSString *jsClickImage =@"function registerImageClickAction(){var imgs=document.getElementsByTagName('img');var length=imgs.length;for(var i=0; i < length;i++){img=imgs;if(\"ad\" ==img.getAttribute(\"flag\")){var parent = this.parentNode;if(parent.nodeName.toLowerCase() != \"a\")return;}img.onclick=function(){window.location.href='image-preview:'+this.src}}}";
;
;
[webView evaluateJavaScript:@"document.body.scrollHeight" completionHandler:^(id _Nullable result,NSError *_Nullable error) {
//获取webView内容高度
CGFloat height = ;
// [webView mas_updateConstraints:^(MASConstraintMaker *make) {
// make.height.equalTo(@(height));
// }];
webView.frame = CGRectMake(0, 0, self.frame.size.width, height);
;
;
if (self.contentHeightCallback != nil) {
self.contentHeightCallback(CGSizeMake(self.frame.size.width, height));
}
}];
}
///拦截点击图片
- (void)webView:(WKWebView *)webView decidePolicyForNavigationAction:(WKNavigationAction *)navigationAction decisionHandler:(void (^)(WKNavigationActionPolicy))decisionHandler{
NSString *requestString = navigationAction.request.URL.absoluteString;
NSString *imgKey = @"image-preview";
if(){
NSString *url = ;
//查看图片详情
;
decisionHandler(WKNavigationActionPolicyCancel);
return;
}
decisionHandler(WKNavigationActionPolicyAllow);
} showPicDetail:() 方法打开浮窗：
-(void) showPicDetail:(NSString *)imgUrl{
ShowBigPicDetailViewController *vc = [ init];
vc.imageUrl = imageUrl;
//设置全屏显示 关键语句，必须有
vc.modalPresentationStyle = UIModalPresentationOverCurrentContext;
;
} 设置UIViewController2 配景半透明
- (void)viewDidLoad {
;
//设置半透明背景
];
...
} 关闭浮窗弹窗：
;
免责声明：如果侵犯了您的权益，请联系站长，我们会及时删除侵权内容，谢谢合作！更多信息从访问主页：qidao123.com:ToB企服之家，中国第一个企服评测及商务社交产业平台。
页:
[1]