Android Question Image downloader service and no extensions

[bluedude]

Hi,

I have some issues with the image downloader service when the URL has no file extension, any suggestions?

 

[DonManfred]

I have some issues

and we now should GUESS what issues you have????

 

[DonManfred]

Sub Activity_Resume
    Dim links As Map
    links.Initialize
    links.Put(ImageView1, "http://snapshots.basic4android.de/filewithoutext")
    links.Put(ImageView2, "http://www.b4x.com/basic4android/images/SS-2013-03-04_11.42.38.png")
    links.Put(ImageView3, "http://www.b4x.com/basic4android/images/SS-2013-03-04_11.52.19.png")
    links.Put(ImageView4, "http://www.b4x.com/basic4android/images/SS-2012-02-06_12.45.56.png")
    CallSubDelayed2(ImageDownloader, "Download", links)
End Sub

The file http://snapshots.basic4android.de/filewithoutext IS an image... (it´s the upper one)

 

[bluedude]

Mmm, interesting. I do the same. The issue is that it does not seem to fetch the image.

Need to investigate it further.

 

[bluedude]

Does not always work, try this URL: http://i1.adis.ws/i/wehkamp/248004_pb_01 In the browser it works perfectly.

 

[DonManfred]

try this URL

Sub Activity_Resume
    Dim links As Map
    links.Initialize
    links.Put(ImageView1, "http://i1.adis.ws/i/wehkamp/248004_pb_01")
    links.Put(ImageView2, "http://www.b4x.com/basic4android/images/SS-2013-03-04_11.42.38.png")
    links.Put(ImageView3, "http://www.b4x.com/basic4android/images/SS-2013-03-04_11.52.19.png")
    links.Put(ImageView4, "http://www.b4x.com/basic4android/images/SS-2012-02-06_12.45.56.png")
    CallSubDelayed2(ImageDownloader, "Download", links)
End Sub

 

[bluedude]

interesting, does not work on my device.

 

[bluedude]

Interesting to see, it it depends on the device I run it on.

 

[DonManfred]

I´m using a Samsung Galaxy Note 3 with Android 4.4.2 (Rooted)

 

[Erel]

Maybe your device fails to load this image as it is quite a large image. You can change the code to use LoadBimapSample instead of Job.GetBitmap.

 

[bluedude]

Hi Erel,
You mean I should replace this iv.SetBackgroundImage(bmp) with LoadBitMapSample? The Job only has a method to do getbitmap.

Or should I do a change in the GetBitMap itself?

 

[Erel]

You can add this sub to HttpJob (you will need to use HttpUtils2 source code instead of the library):

'Returns the response as a bitmap loaded with LoadBitmapSample.
Public Sub GetBitmapSample(Width As Int, Height As Int) As Bitmap
   Return LoadBitmapSample(HttpUtils2Service.TempFolder, taskId, Width, Height)
End Sub

 

[bluedude]

Hi,

I use the source code but the problem is that I want to keep aspect ratio because this is a real issue overall. How can I pre calculate the aspect ratio so I can set that with Width and Height before I download?

 

[Erel]

Try it first just to see whether it solves the issue you encountered.

 

[bluedude]

Hi,

That seems to solve the large image problem, great. Now i'm wondering I i lose aspect ratio if I resize them slighty without taking aspect ratio into account.

 

[Erel]

Keeping the aspect ratio is quite complicated here. It will require finding the bitmap size without loading it (there are libraries that can do it) and then calculating the correct size. You can then load it with LoadBitmapSample. The last step will be to resize the image to the correct size as the bitmap loaded with LoadBitmapSample will usually be larger than the specified size.