Interaction between iOS oc and html (js method called in oc), iosoc

Interaction between iOS oc and html (js method called in oc), iosoc
I. Running 1. effect at the beginning 2. effect after running 2. Work 1. Import an HTML file to the original content of the 2、jiaohu.html file in the ocproject

 

32.16.html file operations from oclanguage --- add, delete, modify, and query 1). query operation

var p = document.getElementById('word');

2). Delete

 

NSString*html =@"var p = document.getElementById('word');";NSString*html2 =@"p.remove();";[webViewstringByEvaluatingJavaScriptFromString:html];[webViewstringByEvaluatingJavaScriptFromString:html2];

3). Change Operation

 

NSString * htmlUpdate = @ "var change = document. getElementsByClassName ('change') [0]; "" change. innerHTML = 'changed value'; "; [webViewstringByEvaluatingJavaScriptFromString: htmlUpdate];

4). insert

 

// Insert operation 1

 

 

// Insert 2NSString * htmlInsert = @ "var img = document. createElement ('img '); "" img. src = 'img11.jpg '; "" img. width = '000000'; "" img. height = '20140901'; "" document. body. appendChild (img); "; [webViewstringByEvaluatingJavaScriptFromString: htmlInsert];