WebView Insert / Modify Content dynamically
In my application, i am using WebView to display the content, Now is it possible to modify the content dynamically, the requirement is something like this,
i will get info from network开发者_开发百科 and depending upon them i need to set the style/font/attribute or probably i need to append the new text when the connected device is not responding,
So far i am using following code,
-(void)modifyString:(NSString *)string{
[sourceString stringByAppendingString:errorString :string]
}
-(void)reloadPage{
[[pWebView mainFrame] loadHTMLString:htmlString baseURL:nil];
}
I don’t think its correct way to implement it, i am trying to make use of
[pWebView replaceSelectionWithMarkupString:@"<html><body><p>Hi there </p></br></body></html>”];
but nothing is displaying because, i have not selected and to select my question is How can i set the selection ?
Kind regards
Rohan
Never Mind
Solved it by this way
In AwakeFromNib Method, added following code,
-(void)awakeFromNib{
NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:@"about:blank"]];
//URL Requst Object
NSURLRequest *requestObj = [NSURLRequest requestWithURL:url];
//Load the request in the UIWebView.
[[pWebView mainFrame ]loadRequest:requestObj];
[pWebView setEditable:YES];
[pWebView setNeedsDisplay:YES];
}
and added this function to append the body element,
-(void)appendTagToBody:(NSString *)tagName InnerHTML:(NSString *)innerHTML
{
// Gets a list of all <body></body> nodes.
DOMNodeList *bodyNodeList = [[[pWebView mainFrame] DOMDocument] getElementsByTagName:@"body"];
// There should be just one in valid HTML, so get the first DOMElement.
DOMHTMLElement *bodyNode = (DOMHTMLElement *) [bodyNodeList item:0];
// Create a new element, with a tag name.
DOMHTMLElement *newNode = (DOMHTMLElement *) [[[pWebView mainFrame] DOMDocument] createElement:tagName];
// Add the innerHTML for the new element.
[newNode setInnerHTML:innerHTML];
// Add the new element to the bodyNode as the last child.
[bodyNode appendChild:newNode];
}
and whenever wanted to change the content,
-(void)appendString:(NSString *)pString{
[self appendTagToBody:@"div" InnerHTML:@"<div><p> Hi there </p></div>"];
[self setNeedsDisplay:YES];
}
加载中,请稍侯......
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