I have made a wrapper app for a website running in c#. Everything runs well until the user tries to upload an image. Permissions have been granted, it allows to select image and use camera, but it does not prevent video (from library or camera).
How do I allow access only to images? I cannot access the backend to modify the request, so I am looking for a solution where I can do it from the app.
Things tested and failed:
1 Detect from urlRequest the call and override it ( web view functions don't get called at all during the image selection)
2 Use UIImagePickerControllerDelegate - selectedImage function does not get called, image simply shows up in webkit as an icon after selection
3 Looked into info.plist restrictions, but there doesn't seem to be any difference between images and video from that end, they are simply camera and photo library permissions
4 Have tried webView.stringByEvaluatingJavaScript, however, looking at the source code, the method called when "Add Image" button is pressed is actually on a different page, with it's url inside one of the script tags. Not sure if this solution can be pursued to a result as I don't know much about web development
For (4), this is part of the source code in the body of the page :
<script src="...LayoutScripts?v=d2fICvYP326VZcultpCUKcJNjGj0lMG8f4XKY8-Vyks1"></script>
<script src="...jquery.validate.additionalmethods.js"></script>
<script src="...Repairs.js"></script>
Then the ...Repairs.js leads to an URL with a number of methods in JS, none of which seems to have a "permission" type of request for the device.
Happy to try and test any possible solutions.
Related
i have to create a product presentation tool that runs offline on an ipad.
i have a program wirtten in c# to create a presentation and this program has an export function, this export function creates a whole little homepage (only html and javascript) with the product slider - everything works fine, also the online presentation is perfect.
but the capital problem is, how could i run this offline on the ipad?
what i already tried:
- put the scripts to dropbox and tried to start index.html on ipad (the local links doesnt work)
- i tried to chache the whole page, but that was too much for caching..
there is also one solution i would prefer -> phonegap, but there i see the problem with creating the app... the c# programm should prepare everything, so the clients should take this exported file/files or direcotry and but it anywhere and the ipad should run this presentation offline.
thanks guys
You can try to make a simple app with UIWebView inside and load your local resources into this UIWebView.
Here are some similar questions on how to make it:
First
Second
Third
The way your clients are able to add the presentation files might be using iTunes File Sharing. And you can get these files from Documents directory
Hope this will help.
I am currently trying to figure out an issue with an Application Protocol Handler I've created. Following the directions listed on MSDN (http://msdn.microsoft.com/en-us/library/aa767914%28v=vs.85%29.aspx), I was able to register my application, PDF Annotator, to open via a URL. The issue I am experiencing is when I try to pass a parameter along with the call. The application will open, but the file parameter that gets passed is not opening within the application.
My registry key is verbatim as dictated by MSDN. My HTML code is as follows:
PDFAnnotator:C:\path\to\file\file.pdf
The way I understood the protocol handler is it takes the URL and tries to launch it via the command line. That being said, I am able to open my pdf file in PDFAnnotator with following command in the prompt:
PDFAnnotator.exe C:\path\to\file\file.pdf
I've tried formatting the file path in the HTML differently thinking that would be the issue too. Has anyone else come across this issue or something similar?
Obligatory Update for future generations (http://xkcd.com/979/):
The reason I was doing this is because half of the PDFs my application handled would be editable while the other half were read-only. I was trying to keep the read-only ones in browser with the Acrobat plugin (I'm targeting chrome only) while the protocol would allow me to set the links of the editable ones to open with Annotator. I tried, on whim, to reverse this (setting the default to Annotator and creating a protocol for Acrobat). I did this, first by trying Acrobat's URI Scheme (acrobat://), which didn't work outside of opening Acrobat. Then, I tried creating a protocol for Acrobat. When that fired off, it gave me an error stating the path was wrong for the file name, path name, or volume. So, progress? I'm giving up on this for now as other priorities have come up, but hopefully this helps somebody down the road.
I have been told this is possible to do but cannot get this to work.
Basically I am trying to cache and image using forge.file.cacheURL()
Now I can get the file just fine and display it in the page by creating a new Image object but what I want to do is use this cached image to change the image in the topbar.
When ever I try to do it I get an error saying "file not found" and after reading the docs a little more it seems that trigger may have "src/" coded into the class because if I put just "image/logo.png" the logo.png will show up in the header because its part of the app package.
I guess the question is.. Is my assumption correct?
Thanks!
The native UI elements (topbar/tabbar) load images directly from your apps package, not through a URL in the same ways images are shown in the webview.
What this means is that currently you can only use images included in your app in the topbar/tabbar modules.
in case anyone is interested in this, the ability was added a while ago to the API so you can now use a cached image or filesaveURL feature of forge to change the header image dynamically.
I need to individualize documents within an iOS-App. I could provide the origin-documents as DOCX, PDF, PPT etc. The output-format has to be PDF.
My minimun requirement is to fill some text-fields. Nice to have would be to replace an image, too.
I´m quite used to generate PDFs programmatically using UIGraphicsBeginPDFContextToFile etc. But in my current case I don´t want to create the whole document programmatically, I just want to replace some content.
Any hints / tipps?
Thank you in advance.
DOCX is a zip - format file so you can process the contents programmatically and the reconstruct the zip file. PPT is a binary format though newer versions of PowerPoint might also construct zip-oriented versions that you can programmatically process. You mentioned though that you need don't want to programmatically process these documents - which I would probably also do only as a last resort.
For your DOCX origin/source documents (or doc,odt,rtf but not ppt/pdf) you could use Docmosis cloud services if your app can have the external dependency. You would upload your DOCX origin documents with placeholders for text-fields or images as a one-off/occasional task. Your iOS app then calls Docmosis sending instructions and data to create the output PDF and either stream it back to the app or email/store it or both.
The upside is it takes all the load and coding away from the iOS application (there is an SDK). The downside is it is an external depdendency. Please note I work for the company the created Docmosis.
Hope that helps.
Why not just load a page in a webView modal that points to a URL of a page you create? The main parts of the page would be static, and then the fields you need to customize would be populated via Javascript or PHP.
For example, we have a contact form in our app that gives you an option to view the details of your completed form after you submit. When the user clicks on the button to view the Contact Confirmation, it loads example.com/confirmation.php in a modal view within the iOS App.
On the confirmation.php page (on the web), I use PHP to pull in $_GET variables from the URL parameters which then populates the page with my static content, and their customized information that they entered into the form.
I do have a UIWebview inside one of my UIViewControllers. The destination URL to be displayed within the WebView is a page on my server (therefore I have access to make changes on it).
That page basically has a list of PDFs to be downloaded (imagine an un-ordered list of hyperlinks each pointing to a PDF file).
I need a way to tell my App that whenever a file is downloaded from that WebView by clicking on one of the links, I need it to be saved inside my application folder instead of the iPhone/iPad memory.
Is there any way I can achieve that? Are there alternatives?
You can allow UIWebView to call your Objective-C delegate function. This link provides an overview of how to do it: http://dblog.com.au/iphone-development/iphone-sdk-tip-firing-custom-events-when-a-link-is-clicked-in-a-uiwebview/ Basically, the delegate function will be called on all requests from the UIWebView. You can examine if they are for links to a pdf files, and if so, write your own objective-c code to download the file and store it in your Application directory. You'll probably want to add some UI to let the user know what is happening. Otherwise you let the request go on as normal and it will be displayed in the web browser.