Weird ActivityNotFoundException for class in a library project

Question

I am getting an ActivityNotFoundException for an activity which exists and is included in my applications AndroidManifest.xml.

Here is my scenario:

My Application project package is: com.myapplynx.mytexteditor.android.

My library project package is com.myapplynx.mytexteditor.common

My library project is properly included in my application project as I can use other classes in the library project from within my application project.

The activity MyTedAdvancedPreference is found in my library project under com.myapplynx.mytexteditor.common.prefs package.

In my application project, I have an xml, res/xml/prefs.xml, where I have defined preferences, including a preference screen to call MyTedAdvancedPreference as shown below:

    <PreferenceScreen android:title="@string/config_cat_advanced" >
        <intent android:action="android.intent.action.VIEW"
            android:targetPackage="com.myapplynx.mytexteditor.android"
            android:targetClass="com.myapplynx.mytexteditor.common.prefs.MyTedAdvancedPreferences"/>

Note that MyTedAdvancedPreferences is included in my application project AndroidManifest.xml as :

  <application
   .....
   <activity android:name="com.myapplynx.mytexteditor.common.prefs.MyTedAdvancedPreference"
       android:label="@string/title_settings"
         android:theme="@style/MyApplynxTheme" >       
    </activity>
   ....
   </application>

My application compiles and runs OK. So when I access my settings page and try to access MyTedAdvancedPreference, I get an ActivityNotFoundException:

10-25 14:15:52.734: E/AndroidRuntime(19049): FATAL EXCEPTION: main
10-25 14:15:52.734: E/AndroidRuntime(19049): android.content.ActivityNotFoundException:   Unable to find explicit activity class {com.myapplynx.mytexteditor.android/com.myapplynx.mytexteditor.common.prefs.MyTedAdvancedPreferences}; have you declared this activity in your AndroidManifest.xml?

The activity is defined in my applications(com.myapplynx.mytexteditor.android) AndroidManifest.xml. What am I doing wrong? Thanks.

check Build Path -> Order/Export - make sure that Private Libraries are marked for export — Tomislav Novoselec, Oct 25 '13 at 11:25

score 1 · Answer 1 · edited May 23 '17 at 12:21

1

It looks similar to another question ActivityNotFoundException when different package's targetClass in PreferenceScreen

Here is the answer that describes a workaround, suggesting that this is a bug in the framework:

https://stackoverflow.com/a/10888411/383414

What he suggests is inheriting from the "broken" Activity, placing the inherited code inside your main app project. Then reference that as per normal in your main manifest.

edited May 23 '17 at 12:21

Community

1
1

answered Oct 25 '13 at 11:33

Richard Le Mesurier

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I never thought this as a bug, thanks for pointing it out. Hope it gets fixed. I appreciate your answer.Thanks. – nmvictor Oct 25 '13 at 12:05
you would click on the "tick" icon to the left of the answer, just below the "votes" number. thx – Richard Le Mesurier Nov 15 '13 at 07:39

Dyna · Answer 2 · 2013-10-25T13:21:54.020

In your manifest change this:

   <activity android:name="com.myapplynx.mytexteditor.common.prefs.MyTedAdvancedPreference"
   android:label="@string/title_settings"
     android:theme="@style/MyApplynxTheme" >       
</activity>

to this:

   <activity
            android:name="MyTedAdvancedPreference"
            android:label="@string/title_settings"
            android:theme="@style/MyApplynxTheme" >
            <intent-filter>
                <action android:name="example.action.ACTION_PREF_ACTIVITY" />

                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>

And your pref.screen should look like this:

    <PreferenceScreen android:title="@string/config_cat_advanced" >
        <intent android:action="example.action.ACTION_PREF_ACTIVITY" >
        </intent>
    </PreferenceScreen>

@nmvictor I updated the answer, the `action android:name` should be equal to the action you are defining in your pref.screen. I you need any help with this let me know. — Dyna, Oct 25 '13 at 13:24

score 0 · Answer 3 · answered Oct 25 '13 at 11:37

Try adding the Intent-Filter and give the

Action(com.myapplynx.mytexteditor.common.prefs).

  <application
       .....
       <activity android:name="com.myapplynx.mytexteditor.common.prefs.MyTedAdvancedPreference"
           android:label="@string/title_settings"
             android:theme="@style/MyApplynxTheme" >
        <intent-filter>
                <action android:name="com.myapplynx.mytexteditor.common.prefs" />

                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>       
        </activity>
       ....
       </application>

And try to call Activity like

Intent intent=new Intent("com.myapplynx.mytexteditor.common.prefs");//action
intent.startActivity(intent);

Hope it should work.

not exactly what I am looking to achieve since I need to call the activity from the prefs.xml. Unless you gave an example with that. Thanks though. — nmvictor, Oct 25 '13 at 12:04

Weird ActivityNotFoundException for class in a library project

3 Answers3