Load resources from relative path using local html in uiwebview

Question

I have a very simple iOS app with a uiwebview loading a very simple test page  test html     lt html gt   lt body gt   lt img src  img myimage png    gt   lt  body gt   lt  html gt    I load this test html file into my web view   NSURL  url     NSBundle mainBundle  URLForResource   test  withExtension   html    NSString  html    NSString stringWithContentsOfURL url encoding NSUTF8StringEncoding error nil   NSURL  baseUrl    NSURL fileURLWithPath   NSBundle mainBundle  bundlePath     webView loadHTMLString html baseURL baseUrl     This works fine if I reference the image without the relative path and put the referenced image in the root path under Targets -  Copy Bundle Resources within XCode  however I can t get it to work with the relative path as shown in my html file   There must be a way to do this  I have lots of images  css  javascript files that I want to load into the webview and I would like not to have to have everything in the root and have to change all the references in my web app

User · Answer

Swift answer 2   The UIWebView Class Reference advises against using webView loadRequest request       Don   t use this method to load local HTML files  instead  use   loadHTMLString baseURL     In this solution  the html is read into a string  The html s url is used to work out the path  and passes that as a base url    let url   bundle URLForResource  index   withExtension   html   subdirectory   htmlFileFolder   let html   try String contentsOfURL  url  let base   url URLByDeletingLastPathComponent webView loadHTMLString html  baseURL  base

User · Answer

In Swift 3 01 using WKWebView   let localURL   URL init fileURLWithPath  Bundle main path forResource   index   ofType   html   inDirectory   CWP     myWebView load NSURLRequest init url  localURL  as URLRequest    This adjusts for some of the finer syntax changes in 3 01 and keeps the directory structure in place so you can embed related HTML files

User · Answer

This is how to load use a local html with relative references     Drag the resource into your xcode project  I dragged a folder named www from my finder window   you will get two options  create groups for any added folders  and  create folders references for any added folders    Select the  create folder references    option   Use the below given code  It should work like a charm   NSURL  url    NSURL fileURLWithPath   NSBundle mainBundle  pathForResource   index  ofType   html  inDirectory   www      webview loadRequest  NSURLRequest requestWithURL url      Now all your relative links like img  gif  js  js  in the html should get resolved    Swift 3      if let path   Bundle main path forResource   dados   ofType   html   inDirectory   root             webView load  URLRequest url  URL fileURLWithPath  path

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I crammed everything into one line  bad I know  and had no troubles with it    webView loadRequest  NSURLRequest requestWithURL  NSURL fileURLWithPath   NSBundle mainBundle  pathForResource   test                                                                                                            ofType   html                                                                isDirectory NO

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sdbrain s answer in Swift 3       let url   URL init fileURLWithPath  Bundle main path forResource   index   ofType   html   inDirectory   www         webView loadRequest NSURLRequest init url  url  as URLRequest

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I ve gone back and tested and re-tested this  it appears that the only way I can get it to work  since I have some files in the img folder and some in js css  etc      is not to use a relative path to my image in the html and have everything referenced to the bundle folder   What a shame       lt img src  myimage png    gt

User · Answer

In Swift    func pathForResource   name  String                            ofType ext  String                            inDirectory subpath  String   - gt  String             name    Name of Hmtl        ofType ext    extension for type of file  In this case  html         inDirectory subpath    the folder where are the file           In this case the file is in root folder      let path   NSBundle mainBundle   pathForResource               dados                                                        ofType        html                                                         inDirectory   root       var requestURL   NSURL string path       var request   NSURLRequest URL requestURL       webView loadRequest request

User · Answer

I simply do this       UIWebView  webView      UIWebView alloc  init  autorelease        NSURL  url     NSBundle mainBundle  URLForResource   index  withExtension   html        NSURLRequest  request    NSURLRequest requestWithURL url        webView loadRequest request     Where  index html  relatively references images  CSS  javascript  etc

[ios] Load resources from relative path using local html in uiwebview

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