File Downloader API

Let users download images, PDFs, and other files from your web app straight to their iPhone or iPad.

WebViewGold’s Download API allows you to provide document, image, and audio file downloads within your WebView app. The following steps outline how to enable and customize the downloader functionality:

1. Downloading Images:

Save images to the camera roll of the user by calling links with savethisimage://?url= prefix:

<a href="savethisimage://?url=IMAGE URL HERE">Download Image</a>

2. Downloading Files:

Save files by calling links with a relevant suffix (e.g., .mp3):

<a href="https://www.example.org/file.pdf">Link PDF</a>
<a href="https://www.example.org/file.mp3">Link mp3 Music</a>
<a href="https://www.example.org/file.mp4">Link mp4 Music</a>
<a href="https://www.example.org/file.wav">Link wav Music</a>
<a href="https://www.example.org/file.epub">Link epub eBook</a>
<a href="https://www.example.org/file.pkpass">Link Passbook / Apple Wallet</a>
<a href="https://www.example.org/file.docx">Link Word</a>
<a href="https://www.example.org/file.pptx">Link PowerPoint</a>
<a href="https://www.example.org/file.xlsx">Link Excel</a>

3. Customizing Supported File Types:

You can add more filetypes that should trigger the file downloader functionality (e.g., .epub, .zip, ...) This can be done via the list variable extentionARY that can be found in the Config.swift file.

4. Enabling Automatic File Downloads:

Consider setting the autodownloader option in Config.swift to enable automatic downloads for files flagged with Content-Disposition HTTP headers, independent of the extentionARY list. This ensures files are downloaded automatically based on server configurations.