zoukankan      html  css  js  c++  java
  • webView与js交互


    webView与js交互常用JS语句:::

    1、 //禁用用户选择

        [self.webView stringByEvaluatingJavaScriptFromString:@"document.documentElement.style.webkitUserSelect=‘none‘;"];

     

    2、//禁用长按弹出框

        [webView stringByEvaluatingJavaScriptFromString:@"document.documentElement.style.webkitTouchCallout=‘none‘;"];

     

    3、//获得UIWebView的URL地址

    NSString *currentURL = [webView stringByEvaluatingJavaScriptFromString:@"document.location.href"];

    NSLog(@"currentURL==%@",currentURL);

     

    4、//获得UIWebView的标题

    NSString *theTitle=[webView stringByEvaluatingJavaScriptFromString:@"document.title"];

    NSLog(@"theTitle==%@",theTitle);

     

    5、//通过name(获得/设置)页面元素的value值

        NSString *js_email_ByName = [webView stringByEvaluatingJavaScriptFromString:@"document.getElementsByName(‘email‘)[0].value=‘hello‘;"];

        NSLog(@"js_email_ByName==%@",js_email_ByName);

    NSString *js_password_ByName = [webView stringByEvaluatingJavaScriptFromString:@"document.getElementsByName(‘pwd‘)[0].value=‘hello‘;"];

    NSLog(@"js_password_ByName==%@",js_password_ByName);

        NSString *js_phone_ByName = [webView stringByEvaluatingJavaScriptFromString:@"document.getElementsByName(‘tel‘)[0].value=‘hello‘;"];

    NSLog(@"js_phone_ByName==%@",js_phone_ByName);

     

    6、//通过id(获得/设置)页面元素的value值

    NSString *js_email_ById = [webView stringByEvaluatingJavaScriptFromString:@"document.getElementByIdx_x_x(‘_iphone_email‘).value=‘asdfasdf‘;"];

        NSLog(@"js_email_ById==%@",js_email_ById);

    NSString *js_password_ById = [webView stringByEvaluatingJavaScriptFromString:@"document.getElementByIdx_x_x(‘_iphone_pwd‘).value=‘asdfasdf‘;"];

        NSLog(@"js_password_ById==%@",js_password_ById);

    NSString *js_phone_ById = [webView stringByEvaluatingJavaScriptFromString:@"document.getElementByIdx_x_x(‘_iphone_phone‘).value=‘asdfasdf‘;"];

         NSLog(@"js_phone_ById==%@",js_phone_ById);

     

    7、//提交表单

        NSString *js_forms = [webView stringByEvaluatingJavaScriptFromString:@"document.forms[0].submit(); "];

        NSLog(@"js_forms==%@",js_forms);

        

    8、//获得body与body之间的HTML

        NSString *allHTML = [webView stringByEvaluatingJavaScriptFromString:@"document.body.innerHTML"];

    NSLog(@"allHTML: %@", allHTML);

     

    9、//使UIWebView的输入框获得焦点(但是无法,弹出iphone键盘)

        [webView stringByEvaluatingJavaScriptFromString:@"document.querySelector(‘#saySome‘).focus()"];

        [webView stringByEvaluatingJavaScriptFromString:@"document.getElementByIdx_x("saySome").scrollIntoView("true")"];

     

    10、//改变webview尺寸时对应改变web page尺寸(web page需要有对应的处理)

        [webview stringByEvaluatingJavaScriptFromString: [NSString stringWithFormat:@"document.querySelector(‘meta[name=viewport]‘).setAttribute(‘content‘, ‘width=%d;‘, false); ",(int)webview.frame.size.width]];

       

    11、//获取webview显示内容的高度

        CGFloat documentWidth = [[wb stringByEvaluatingJavaScriptFromString:@"document.getElementById(‘content‘).offsetWidth"] floatValue];

    CGFloat documentHeight = [[wb stringByEvaluatingJavaScriptFromString:@"document.getElementById("content").offsetHeight;"] floatValue];

     

    12、//通过id获取内容

        NSString *js = @"document.getElementById(‘lg‘).innerHTML";

        NSString *pageSource = [webView stringByEvaluatingJavaScriptFromString:js];

        NSLog(@"pagesource:%@", pageSource);

     

    13、//改变字体大小

      [self.webView stringByEvaluatingJavaScriptFromString:@"document.getElementsByTagName(‘body‘)[0].style.webkitTextSizeAdjust= ’150%’"];

     

    14、//改变webView中图片大小

        [webView stringByEvaluatingJavaScriptFromString:

         @"var script = document.createElement(‘script‘);"

         "script.type = ‘text/javascript‘;"

         "script.text = "function ResizeImages() { "

         "var myimg,oldwidth;"

         "var maxwidth = 300.0;" // UIWebView中显示的图片宽度

         "for(i=0;i <document.images.length;i++){"

         "myimg = document.images[i];"

         "if(myimg.width > maxwidth){"

         "oldwidth = myimg.width;"

         "myimg.width = maxwidth;"

         "}"

         "}"

         "}";"

         "document.getElementsByTagName(‘head‘)[0].appendChild(script);"];

     

    15、//删除所有链接


         [webView stringByEvaluatingJavaScriptFromString:@"$(document).ready(function () {$("a").removeAttr("href");})"];
  • 相关阅读:
    Anoconda管理Python版本 | Python
    VSCode用以Python开发的配置 | VSCode
    不联网的情况下安装python环境 | Python(转)
    批量按要求修改文件名
    [OpenLayers] 控件系列之SelectFeature同时支持hover与click
    python使用suds调用webservice接口
    【转载】eMBMS知识点汇总(概念/应用场景/工作原理/标准进程/发展现状)
    处理器分类
    3GPP Release 4G-5G 演进
    浅谈css中一个元素如何在其父元素居中显示
  • 原文地址:https://www.cnblogs.com/yuhaojishuboke/p/5155843.html
Copyright © 2011-2022 走看看