USB Connection notification

Question

can we receive notification if user connected there phone through USB cable.

Answer 1

Actually there is one broadcast event; if you turned on Debug in your application settings, your will see a bug on your notification bar when you plugged usb. Following is the sample how it works;

public void onReceive(Context context, Intent intent) {
    String action = intent.getAction();
    // UsbManager.ACTION_USB_STATE -> "android.hardware.usb.action.USB_STATE" actually
    if (action.equals(UsbManager.ACTION_USB_STATE)) {
        Bundle extras = intent.getExtras();
        // UsbManager.USB_CONNECTED -> "connected" actually
        usbConnected = extras.getBoolean(UsbManager.USB_CONNECTED);
        ...

You can find this at framework/base/service/java/com/android/server/NotificationManagerService.java. Hope this helps.

Answer 2

Ajay,

I wasn't able to find anything specific to just "USB Connected," but there are a few Broadcast Actions that may be of interest in this case depending on what you are trying to accomplish:

• ACTION_MEDIA_SHARED: External media is unmounted because it is being shared via USB mass storage.
• ACTION_UMS_CONNECTED: The device has entered USB Mass Storage mode. This is used mainly for the USB Settings panel.
• ACTION_UMS_DISCONNECTED: The device has exited USB Mass Storage mode. This is used mainly for the USB Settings panel.

There doesn't seem to be a Broadcast Action specific to USB simply being plugged in, you could also try doing something with:

• ACTION_POWER_CONNECTED: External power has been connected to the device.

But this would go off for both USB connected to a computer and USB connect ONLY to a power source...

Interestingly, I also found this LINK simply stating that there was no Broadcast Action for "USB Connected".

You may be out of luck in this case :-\