Hi All,
I have been working on BroadcastReceiver code to capture GMAIL events
and try to extract data to create an email event log.
Although the registration of the BroadcastReceiver using
Intent.PROVIDER_CHANGED for gmail appears to be correctly formed and
no exceptions are generated. I have my doubts whether the receiver is
able to capture gmail event for Intent.PROVIDER_CHANGED, generated
when unread email is available, since code in my BroadcastReceiver is
never activated. Upon reading the BroadcastReciever API docs (see
excerpt below) I see that BroadcastReceivers are not designed to
capture intents used with startActivity() and that BroadcastReceivers
only receive intents generated from a sendBroadcast() method call.
For your reference see my code snippets below.
Is the BroadcastReceiver mechanism not the appropriate method to
capture email/gmail/sms events?
BroadcastReceiver code is the following:
public class EmailReceiver extends BroadcastReceiver {
/**
*
*/
String TAG= "MY_TAG:RECEIVER";
@Override
public void onReceive(Context context, Intent intent) {
//
Log.i(TAG, "Action=" + intent.getAction());
if (Intent.ACTION_PROVIDER_CHANGED.equals
(intent.getAction
())) {
Uri dataURI= intent.getData();
String dataURIPath=dataURI.getPath();
Log.i(TAG, dataURIPath);
}
}
}
BroadcastReceiver code registration for gmail is the following:
//
@override
public void onCreate(Bundle b){
....
EmailReceiver myMailReceiver = new EmailReceiver();
......
}
@Override
public void onResume(){
super.onResume();
try{
IntentFilter mailFilter = new IntentFilter
( Intent.ACTION_PROVIDER_CHANGED, "content://gmail-ls/unread/^i");
// IntentFilter mailFilter = new IntentFilter
( Intent.ACTION_PROVIDER_CHANGED, "gmail-ls");
registerReceiver( myMailReceiver, mailFilter);
Log.i(myMailReceiver.TAG, "MailReceiver registered");
}catch(Exception e){
Log.e(myMailReceiver.TAG, "Intent Filter malformed");
}
}
Excerpt from BroadcastReceiver Doc:
Base class for code that will receive intents sent by sendBroadcast
().
........
........
Note that, although the Intent class is used for sending and receiving
these broadcasts, the Intent broadcast mechanism here is completely
separate from Intents that are used to start Activities with
Context.startActivity(). There is no way for a BroadcastReceiver to
see or capture Intents used with startActivity(); likewise, when you
broadcast an Intent, you will never find or start an Activity. These
two operations are semantically very different: starting an Activity
with an Intent is a foreground operation that modifies what the user
is currently interacting with; broadcasting an Intent is a background
operation that the user is not normally aware of.
.........
Regards,
KK
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