How To Use MTP-connected Devices

by Doug Gordon » Thu, 03 Mar 2011 01:48:04 GMT


Sponsored Links
 My app currently requires the user to manually copy certain files from 
their PC to their USB-mounted Android device where my app can open them 
and do its thing. But I'm already running into issues with users' 
devices that want to mount in this "MTP" mode, and I hear that the Xoom 
*only* supports MTP, etc.


So how can MTP be used to transfer files to the device that don't really 
fit into the "Media files" category, and how do I locate the directory 
from my app? What do getExternalStorageDirectory and getExternalFilesDir 
return for a device like the Xoom?


Doug Gordon
GHCS Software

--



Re: How To Use MTP-connected Devices

by FrankG » Thu, 03 Mar 2011 04:59:35 GMT


 Hi Doug,

I can imagine that this will be more an more a problem for
applications
like yours : You cannot know in which usb mode the target device is
currently,
as this is highly vendor/manufacturer specific. You would also run
into trouble
if the user will use pictbridge. And you also not able to trigger a
mode change
because the interface to this is also specific for the manufacturer.

Would be interessted to know whether XOOM only supports MTP, but --
how far I understood Dianne in the past -- it must be at least MTP
+ADB,
otherwise Android Market will not work ?

Good luck !

   Frank





-- 


Sponsored Links


Other Threads

1. How to use motion events with multiple layouts

Hi everyone, I'm beginning in android development, and I've stumbled
upon a problem.

My application has different layouts stored in xml files, and I use
motion events such as onFling or onSingleTapup.
These motion events seem to apply whatever layout i'm in.

My problem is simply identifying which layout i'm currently using so I
can define the appropriate action.

I guess what i'm trying to do is a bit like this:

@Override
public boolean onSingleTapUp(MotionEvent e)
{
        if(using main layout)
        {
                //do this
        }
       else if (using settings layout)
        {
              // do that
        }
        return false;
}

Is this the right way to do things ?

Thanks for the much needed help !

--~--~---------~--~----~------------~-------~--~----~

2. Drawing

Hi Sonic,

you can use canvas.drawCircle() and can draw in onDraw() method.




--~--~---------~--~----~------------~-------~--~----~

3. window.requestFeature(Window.FEATURE_RIGHT_ICON) does not work correctly

4. Switching to Terrainview in Google Maps?

5. Any API to get the time elapsed since the system was started?

6. How does surface flinger access the data sent by MIO

7. Root G1 anda! (new & faster method)