How to find out the reason why Activity doesn't start

Question

I got log cat message from startAnotherActivity() method

private void startAnotherActivity() {
    Log.i(TAG, "Entered startAnotherActivity()");

    Intent intent = new Intent();
    intent.setAction(ANOTHER_ACTIVITY);
    intent.addCategory("android.intent.category.DEFAULT");
    startActivity(intent);
}

Another activity doesn't start, no other messages in log cat.

How can I resolve this issue?

UPDATE#1:

Sorry, I forgot to mention that AnotherActivity is an Activity in the other application, and therefore ANOTHER_ACTIVITY == 'some.other.app.domain.ANOTHER_ACTIVITY'

Shouldn't Dalvik complain if it cannot find specified activity?

Show us how you declare the `Activity` in your `AndroidManifest.xml` — Blundell, Oct 23 '14 at 13:24
if no activity is found for that action/category, an exception is raised. there has to be something in the logcat — njzk2, Oct 23 '14 at 13:44
`Entered startAnotherActivity()` do you see this in your `LogCat`? — Blundell, Oct 23 '14 at 14:23

score 0 · Answer 1 · answered Oct 23 '14 at 14:09

0

One possible reason may be not declaring other activity in the manifest. You can do this like the following:

    <activity android:name="your.package.your.activity">
    </activity>

And then you can start the activity by doing the following:

Intent intent = new Intent(CurrentActivity.this, NewActivity.class);
startActivity(intent);

Hope this helps.

answered Oct 23 '14 at 14:09

yrazlik

9,023
26
84
145

Thank you for that, but it can't help 'cause I need to launch an activity from another app – zuba Oct 23 '14 at 14:46
@zuba maybe this link may help then. http://stackoverflow.com/questions/3872063/launch-an-application-from-another-application-on-android – yrazlik Oct 24 '14 at 05:55

score 0 · Answer 2 · edited May 23 '17 at 12:11

0

Since it's an activity in another application, you may need to set the component (fully qualified package name and fully qualified activity name). See here: How to start activity in another application?

Or here: Launch an application from another application on Android

edited May 23 '17 at 12:11

Community

1
1

answered Oct 23 '14 at 14:19

kha

16,333
9
28
57

Looking promising, Thank you! I'll try that right now – zuba Oct 23 '14 at 14:33
Just have tried, but it ended up with the same result – zuba Oct 23 '14 at 14:45
Did you try both approaches? (there were 2 links). Did you get an error this time or simply nothing, like before? – kha Oct 23 '14 at 15:17
I missed the second, but yes, just now I tried it. Right the same result. – zuba Oct 23 '14 at 16:26
Despite I found in docs `Caution: If you invoke an intent and there is no app available on the device that can handle the intent, your app will crash.` I get my log cat message and my app neither crash, nor shows ohter's app activity. – zuba Oct 23 '14 at 16:27

score 0 · Answer 3 · answered Nov 02 '14 at 12:35

0

Finally I found out my mistake.

In the project there are two similar messages in two activities, so I thought that runs one, but that was another.

Thank you for your assistance!

answered Nov 02 '14 at 12:35

zuba

1,378
1
14
42

How to find out the reason why Activity doesn't start

3 Answers3