Android intent sometimes "handled" instead of ACTION_SEND

Question

My app is supposed to handle shared texts. For example URLs from the amazon app. So I added the following intent-filter to my main activity:

    <intent-filter>
        <action android:name="android.intent.action.SEND" />
        <category android:name="android.intent.category.DEFAULT" />
        <data android:mimeType="text/plain" />
    </intent-filter>

In my onCreate function of my activity, I'm processing the intent like so:

        intent = getIntent();
        if(intent.getAction() != null) {
            if (intent.getAction().equals(Intent.ACTION_SEND)) {
                if (intent.getType().equals("text/plain")) {
                    onNavigationDrawerItemSelected(1);
                }
            }
        }

The problem is, that sometimes the onCreate function isn't called following a sharing action. I checked the onResume method, and indeed that's what is called. The problem is that the intents action isn't "ACTION_SEND", but is packagename.handled and doesn't contain the needed information.

Why is that?

Answer 1

If your activity already exists, depending on Intent flags and <activity> attributes, that existing activity instance may be reused. Override onNewIntent() to get the Intent being delivered to an existing activity instance that is causing it to be brought back to the foreground. Look in there for your ACTION_SEND values.