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I have an android devic, i wish to know when it is connected to the pc via java/.net i know its possible - the Samsung New PC Studio is doing it, when ever i connect an android device it lets me know. how can i achieve the same?
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If you're struggling to connect your Android phone to the computer with a USB cable to transfer some files, it's a familiar problem you can fix in a few minutes. The problem of the phone not recognized by pc is commonly caused by incompatible USB cable, wrong connection mode, or outdated drivers.
On your Android device open Settings and go to Storage. Tap the more icon in the top right corner and choose USB computer connection. From the list of options select Media device (MTP). Connect your Android device to your computer, and it should be recognized.
Start with the Obvious: Restart and Try Another USB Port Before you try anything else, it's worth going through the usual troubleshooting tips. Restart your Android phone, and give it another go. Also try another USB cable, or another USB port on your computer. Plug it directly into your computer instead of a USB hub.
You have to listen for one of this notifications
http://developer.android.com/reference/android/content/Intent.html
If you're using it as a mass storage device then use this
http://developer.android.com/reference/android/content/Intent.html#ACTION_UMS_CONNECTED
Other USB events aren't clearly described in the documentation
EDIT: If you want to read on the computer side I would read this article
http://today.java.net/article/2006/07/05/java-and-usb
and then check which kind of devices are connected to the usb port. if it is a mobile phone, then you can try to send a short message to it. on your phone you make a small piece of code which returns an appropriate answer so you can detect thats its really android/your phone/this phones you want to identify
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