android: how to know whether app was called by another app

Question

I managed to register my app as camera app via

<activity android:name=".CameraActivity" android:clearTaskOnLaunch="true">
    <intent-filter>
        <action android:name="android.media.action.IMAGE_CAPTURE" />
        <category android:name="android.intent.category.DEFAULT" />
    </intent-filter>
</activity>

Now, I would like to know whether my app was startet as intent or directly by the user, so I can react accordingly:

returning an image via setResult (in case of returning to the previous app)
saving the image to disk (in those cases where no previous app is involved)

Anyone knows how to get this information?

possible duplicate http://stackoverflow.com/questions/7564461/how-to-know-if-an-activity-is-called-using-startactivityforresult-or-simply-call — Shadow, Jan 07 '12 at 10:37

score 2 · Accepted Answer · answered Jan 07 '12 at 10:38

2

Analyse the value of intent.getAction() to determine whether the activity was launched by the home/launcher, or by another application using the "IMAGE_CAPTURE" action.

answered Jan 07 '12 at 10:38

clemp6r

3,665
2
26
31

score 2 · Answer 2 · answered Jan 07 '12 at 10:39

2

Activity.getIntent will return the Intent that initiated your activity, so you can examine the intent's action/category/etc. to determine what your activity should do.

answered Jan 07 '12 at 10:39

slyfox

950
9
22

android: how to know whether app was called by another app

2 Answers2