B4A Library AdvancedWebview

this is a wrap for this github project.

Enhanced WebView component for Android that works as intended out of the box

AdvancedWebview
Author: DonManfred (wrapper)
Version: 1
AdvancedWebView
Events:

• onPageError (errorCode As Int, description As String, failingUrl As String)
• onPageStarted (url As String, favIcon As Object)
• onDownloadRequested (url As String, suggestedFilename As String, mimeType As String, contentLength As long, contentDisposition As String, userAgent As String)
• onPageFinished (url As String)
• onExternalPageRequest (url As String)

Fields:

• ba As anywheresoftware.b4a.BA

Methods:

• DesignerCreateView (base As anywheresoftware.b4a.objects.PanelWrapper, lw As anywheresoftware.b4a.objects.LabelWrapper, props As anywheresoftware.b4a.objects.collections.Map) As void
• clearPermittedHostnames As void
• onPause As void
• handleDownload (fromUrl As java.lang.String, toFilename As java.lang.String) As boolean
  Handles a download by loading the file from `fromUrl` and saving it to `toFilename` on the external storage
  
  This requires the two permissions `android.permission.INTERNET` and `android.permission.WRITE_EXTERNAL_STORAGE`
  
  Only supported on API level 9 (Android 2.3) and above
  context: a valid `Context` reference
  fromUrl: the URL of the file to download, e.g. the one from `AdvancedWebView.onDownloadRequested(...)`
  toFilename: the name of the destination file where the download should be saved, e.g. `myImage.jpg`
  Return type: @return:whether the download has been successfully handled or not
• IsInitialized As boolean
• Initialize (ba As anywheresoftware.b4a.BA, EventName As java.lang.String) As void
• loadHtml (html As java.lang.String) As void
  Loads and displays the provided HTML source text
  html: the HTML source text to load
• addHttpHeader (name As java.lang.String, value As java.lang.String) As void
  Adds an additional HTTP header that will be sent along with every HTTP `GET` request
  
  This does only affect the main requests, not the requests to included resources (e.g. images)
  
  If you later want to delete an HTTP header that was previously added this way, call `removeHttpHeader()`
  
  The `WebView` implementation may in some cases overwrite headers that you set or unset
  name: the name of the HTTP header to add
  value: the value of the HTTP header to send
• BringToFront As void
• SetLayout (arg0 As int, arg1 As int, arg2 As int, arg3 As int) As void
• removePermittedHostname (hostname As java.lang.String) As void
• SendToBack As void
• addPermittedHostnames (collection As java.util.Collection) As void
• onBackPressed As boolean
• SetVisibleAnimated (arg0 As int, arg1 As boolean) As void
• onDestroy As void
• RemoveView As void
• Invalidate3 (arg0 As int, arg1 As int, arg2 As int, arg3 As int) As void
• Invalidate2 (arg0 As android.graphics.Rect) As void
• SetColorAnimated (arg0 As int, arg1 As int, arg2 As int) As void
• loadUrl2 (url As java.lang.String, preventCaching As boolean) As void
• loadHtml4 (html As java.lang.String, baseUrl As java.lang.String, historyUrl As java.lang.String, encoding As java.lang.String) As void
  Loads and displays the provided HTML source text
  html: the HTML source text to load
  baseUrl: the URL to use as the page's base URL
  historyUrl: the URL to use for the page's history entry
  encoding: the encoding or charset of the HTML source text
• isFileUploadAvailable As boolean
  Returns whether file uploads can be used on the current device (generally all platform versions except for 4.4)
  Return type: @return:whether file uploads can be used
• SetBackgroundImage (arg0 As android.graphics.Bitmap) As void
• loadHtml3 (html As java.lang.String, baseUrl As java.lang.String, historyUrl As java.lang.String) As void
  Loads and displays the provided HTML source text
  html: the HTML source text to load
  baseUrl: the URL to use as the page's base URL
  historyUrl: the URL to use for the page's history entry
• loadHtml2 (html As java.lang.String, baseUrl As java.lang.String) As void
  Loads and displays the provided HTML source text
  html: the HTML source text to load
  baseUrl: the URL to use as the page's base URL
• onResume As void
• loadUrl (url As java.lang.String) As void
• Invalidate As void
• addPermittedHostname (hostname As java.lang.String) As void
• removeHttpHeader (name As java.lang.String) As void
  Removes one of the HTTP headers that have previously been added via `addHttpHeader()`
  
  If you want to unset a pre-defined header, set it to an empty string with `addHttpHeader()` instead
  
  The `WebView` implementation may in some cases overwrite headers that you set or unset
  name: the name of the HTTP header to remove
• SetLayoutAnimated (arg0 As int, arg1 As int, arg2 As int, arg3 As int, arg4 As int) As void
• RequestFocus As boolean

Permissions:

• android.permission.ACCESS_NETWORK_STATE
• android.permission.INTERNET
• android.permission.WRITE_EXTERNAL_STORAGE

Properties:

• Left As int
• Background As android.graphics.drawable.Drawable
• Parent As java.lang.Object [read only]
• ThirdPartyCookiesEnabled As boolean [write only]
• Color As int [write only]
• Enabled As boolean
• PermittedHostnames As java.util.List [read only]
• MixedContentAllowed As boolean [write only]
• Top As int
• CookiesEnabled As boolean [write only]
• UploadableFileTypes As java.lang.String [write only]
• WebChromeClient As android.webkit.WebChromeClient [write only]
• Visible As boolean
• Padding As int[]
• Height As int
• Tag As java.lang.Object
• Width As int
• GeolocationEnabled As boolean [write only]
• WebViewClient As android.webkit.WebViewClient [write only]
• DesktopMode As boolean [write only]

 

[MarcoRome]

Good work Don

 

[somed3v3loper]

Why are types in documentation different ? like

• Initialize (ba As anywheresoftware.b4a.BA, EventName As java.lang.String) As void

 

[DonManfred]

I´m not sure... You dont need to add the parameter... B4A will add this parameter automatically...

 

[Hamied Abou Hulaikah]

Why in some devices (like mine LG G4 android 6) the webview show empty white page! its content appears if i touch & move the screen !!!!!

 

[b4xscripter]

Hi,
first of all, many thanks for this amazing library!
I have a question. When the Internet Connection is down, I would not like to have in my app the browser's message "You don't have Internet Connection". I would like to have a message coming from my app, something like "Waiting for Internet Connection, please wait...". Is it possible to manage that from AdvancedWebView?
Thanks!

 

[An Schi]

In the onPageError event, you could hide the webview and display a message by yourself (i think).

 

[peacemaker]

Can it upload files to a server via a form?

 

[DonManfred]

Can it upload files to a server via a form?

I dont think so

 

[b4xscripter]

Do we have something similar for B4I?
Would be very nice!

 

[DonManfred]

Do we have something similar for B4I?

1. I dont know.
2. Don´t expect me to do it (i do not write wraps for B4I)

 

[b4xscripter]

Ok, ok! I just wanted to research....Thank you, DonManfred for this amazing library! It was really out of box!

 

[b4xscripter]

Hi,
Do you plan to implement OverrideUrl?

I would like to have the possibility to implement the "share button" option

Best regards

OverrideUrl

 

[DonManfred]

I dont plan to do anything. I´ve just wrapped the lib as is. I dont want to change the 3rd party lib.

Additionally i lost the source a few months ago. Use it as is or use the standard webview.

 

[ferya1]

many thanks
Why full screen video causes to not responding the app?
when I touch full screen everything stops and app not responding.
regards