Android 4.03 usb does not respond to a message waiting.

Android 4.0 usb pluggable news

Android 4.03 usb does not respond to a message waiting, I signed up online that's why the news that there is no mechanism to respond to it? Also need to set something in AndroidManifest.xml it?

 

@ Override 
protected void onStart () {
super.onStart (); 

final IntentFilter intentFilter = new IntentFilter (); 
intentFilter.addAction (UsbManager.ACTION_USB_DEVICE_ATTACHED); 
intentFilter.addAction (UsbManager.ACTION_USB_DEVICE_DETACHED); 
intentFilter.addAction (UsbManager.ACTION_USB_ACCESSORY_ATTACHED); 
intentFilter.addAction ("android.hardware.usb.action.USB_STATE"); 
registerReceiver (receiver, intentFilter); 
} 
private final BroadcastReceiver receiver = new BroadcastReceiver () {

@ Override 
public void onReceive (Context context, Intent intent) {
final String action = intent.getAction (); 
/ / Breakpoint does not respond? Will also need to add anything? 
if (intent.getAction (). equals (UsbManager.ACTION_USB_DEVICE_ATTACHED)) {
. boolean connected = intent.getExtras () getBoolean (UsbManager.EXTRA_ACCESSORY); 
if (! connected) {
/ / It was disconnected from the plug, do something ... 
} 
} 
} 
}; 

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Reply:
Find a reason, because it is not deployed as a system app, so there is no response to the incident.
Reply:
filter.addDataScheme ("file") ;/ / this line must be otherwise unable to receive radio
Reply:
You can now have a
Reply:
Are you entrap,
android.hardware.usb.action.USB_STATE This is not an increase filter.addDataScheme ("file"); this statement.

Only Intent.ACTION_MEDIA_MOUNTED on usb mount like it needs filter.addDataScheme ("file");