Android Question Can't download pdf file in webview

Baris Karadeniz · May 10, 2016

I Can't download pdf file in webview with the codes below? Is there any idea? I use HttpUtils2 library.

B4X:

Sub WebView1_OverrideUrl (Url As String) As Boolean
   If Url.EndsWith(".pdf") Then
        Dim j As HttpJob
     j.Initialize("pdf", Me)
     j.Download(Url)
     Return True
    Else If Url.IndexOf("mailto:") > -1 Then 
     Dim Intent1 As Intent
     Intent1.Initialize(Intent1.ACTION_VIEW, Url)
     StartActivity(Intent1)
     Return True
   Else
     Return False
   End If
End Sub

Sub JobDone (Job As HttpJob)

End Sub

DonManfred · May 10, 2016

An empty jobdone will not save any download to a file.
See the httputil tutorials or search the forum on how to USE IT.

Baris Karadeniz · May 10, 2016

I did as you said. I used Erel's "LargeFileDownload.zip" example. I added libraries which Erel said. But I received error logs below;

B4X:

Sub WebView1_OverrideUrl (Url As String) As Boolean
   If Url.EndsWith(".pdf") Then
        Dim dd As DownloadData
        dd.url = Url '<--- download link
        dd.EventName = "dd"
        dd.Target = Me
        CallSubDelayed2(DownloadService, "StartDownload", dd)
     Return True
    Else If Url.IndexOf("mailto:") > -1 Then 
     Dim Intent1 As Intent
     Intent1.Initialize(Intent1.ACTION_VIEW, Url)
     StartActivity(Intent1)
     Return True
   Else
     Return False
   End If
End Sub

Sub dd_Complete(Successful As Boolean)
    Log("Job completed: " & Successful)
End Sub

Error logs;

Installing file.
PackageAdded: package:app.taksim
** Service (starter) Create **
** Service (starter) Start **
** Activity (main) Create, isFirst = true **
** Activity (main) Resume **
** Service (downloadservice) Create **
** Service (downloadservice) Start **
** Service (httputils2service) Create **
** Service (httputils2service) Start **
app.taksim.main:_dd_complete, [[downloadservice=null, errormessage=, httputils2service=null
, jobname=[url]http://www.taksi-m.com.tr/TAKSIMCustomerUserManuelR2_EN.pdf[/url], main=null, password=
, req=anywheresoftware.b4h.okhttp.OkHttpClientWrapper$OkHttpRequest@427b2a88, starter=null, username=
, tag=[CountingStream=(MyOutputStream) anywheresoftware.b4a.randomaccessfile.CountingStreams$MyOutputStream@428b6c90, Data=[EventName=dd, url=[url]http://www.taksi-m.com.tr/TAKSIMCustomerUserManuelR2_EN.pdf[/url], Target=class app.taksim.main
, IsInitialized=false], Total=58162
, IsInitialized=true], target=class app.taksim.downloadservice, taskid=1
, success=true]]
Error occurred on line: 57 (Main)
java.lang.IllegalArgumentException: argument 1 should have type boolean, got app.taksim.httpjob
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:702)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:336)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:246)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:134)
at anywheresoftware.b4a.BA$2.run(BA.java:328)
at android.os.Handler.handleCallback(Handler.java:733)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:146)
at android.app.ActivityThread.main(ActivityThread.java:5602)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1283)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1099)
at dalvik.system.NativeStart.main(Native Method)

DonManfred · May 10, 2016

Create a smal example and upload it.
Without seeing the hole code it is hard to give advices.

Baris Karadeniz · May 10, 2016

This is small project. Zip file is given attached. You can see pdf files in;

1) Taxi Driver Login - Driver Registration - Contract
2) After Customer login at the ? mark at the top of map. (Username: [email protected] , password: 123456)

DonManfred · May 10, 2016

B4X:

Sub dd_progress(count As Long,total As Long )
   
End Sub

Sub dd_Complete(Job As HttpJob)
    Log("Job completed: " & Job.Success)
    Dim o As OutputStream
    o = File.OpenOutput(File.DirDefaultExternal, "l.bal", False)
    File.Copy2(Job.GetInputStream, o)
    o.Close
    Job.Release
End Sub

** Service (starter) Create **
** Service (starter) Start **
** Activity (main) Create, isFirst = true **
** Activity (main) Resume **
** Service (downloadservice) Create **
** Service (downloadservice) Start **
** Service (httputils2service) Create **
** Service (httputils2service) Start **
Job completed: true

Baris Karadeniz · May 10, 2016

I did as you said. It says "job completed: true" but the pdf file is not downloaded. Did you try to download?

DonManfred · May 11, 2016

Your code

B4X:

Sub dd_Complete(Job As HttpJob)
    Log("Job completed: " & Job.Success)
    Dim o As OutputStream
    o = File.OpenOutput(File.DirDefaultExternal, "l.bal", False)
    File.Copy2(Job.GetInputStream, o)
    o.Close
    Job.Release
End Sub

saves the pdf as l.bal in DirDefaultExternal.

Baris Karadeniz · May 11, 2016

Ok. I saw it in the "files" directory. I have 2 questions;

1) pdf files were in 2 places as I wrote above. The first place (Taxi Driver Login - Driver Registration - Contract) is not downloaded. When I press on it nothings happen. (Service doesn't start so job is not completed) What can be the reason. It is in the pop-up menu.

2) After downloading l.bal, I want to open on the screen immediately. Should I write into "Sub dd_complete"? And what I need to write?

Thanks for your help.

DonManfred · May 11, 2016

Baris Karadeniz said:
Contract) is not downloaded

I cant reach the popup once logged in. There is no button to logout
But i guess you need to capture it in override url, extract the filename and remember it. Or get the url in dd_complete again to extract the url to get the filename out of it...

The url i get in my pc browser points to http://www.taksi-m.com.tr/TAKSIMDriverContractR4_DE.pdf
So i guess you should be able to download the pdf manually with httputils

Baris Karadeniz · May 11, 2016

If you turn your phone horizontally, there is a log out button at the top right corner.

Before login did you try to push on "contract"? It is also URL like the pdf after login. It is totally same procedure. Why I need to write something else?

DonManfred · May 11, 2016

Baris Karadeniz said:
If you turn your phone horizontally, there is a log out button at the top right corner.

Not on my device (S7 EDGE). I saw the button in my PCs browser too so i was expecting to see a button there.

Baris Karadeniz · May 11, 2016

Interesting. So before login, did you push on the "contract"? I think it happens nothing because it is in the pop-up menu.

DonManfred · May 11, 2016

no i first followed the other way. Now as you are asking i tried to use the other but i´m logged in now and cant logoff

Baris Karadeniz · May 11, 2016

In edge type of phones doesn't show the log out button I think. Only way to remove app and install again.

DonManfred · May 11, 2016

Baris Karadeniz said:
Only way to remove app and install again.

I did!
Now i´m able to click the link for the contract.
The service is started and download th file.
But again your code save it to the same name again l.bal

But it is working

LogCat connected to: 9885e6514556383552
--------- beginning of main
--------- beginning of system
** Service (starter) Create **
** Service (starter) Start **
** Activity (main) Create, isFirst = true **
** Activity (main) Resume **
** Activity (main) Pause, UserClosed = false **
** Activity (main) Resume **
** Service (downloadservice) Create **
** Service (downloadservice) Start **
** Service (httputils2service) Create **
** Service (httputils2service) Start **
Job completed: true

Baris Karadeniz · May 11, 2016

There happens nothing with my phone (Note II) May be there is a problem with phone. I will try it with another phone. It is not important the name is again l.bal. Because it will be opened as soon as downloading finish. And it will change if another pdf file is downloaded. I think it will be downloaded onto old l.bal.

After downloading l.bal, I want to open on the screen immediately. Should I write into "Sub dd_complete"? And what I need to write?

Erel · May 11, 2016

Why aren't you using the standard HttpUtils2? There is no reason to use LargeFileDownload code unless you are downloading a huge pdf file (50mb+).

Baris Karadeniz · May 11, 2016

With the codes below?

B4X:

Sub WebView1_OverrideUrl (Url As String) As Boolean
   If Url.EndsWith(".pdf") Then
     Dim j As HttpJob
     j.Initialize("pdf", Me)
     j.Download(Url)
     Return True
   Else
     Return False
   End If
End Sub

Sub JobDone (Job As HttpJob)
End Sub

DonManfred · May 11, 2016

Baris Karadeniz said:
With the codes below?

NOT with a EMPTY jobdone-sub!

Android Question Can't download pdf file in webview

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