Re: [android-developers] Re: Tab Layout not working

On Wed, Sep 29, 2010 at 9:19 PM, Saied <saiedbn@gmail.com> wrote:
> I had looked at it, but can't quite make what' wrong:
>
> It seems that the package name is prepended twice: com.exideas.mekb/
> com.exideas.mekb.TabHolder

The first part is your package name. The second part is the activity class name.

> Other than that, TabHolder is included in the manifest:
>
>   <activity    android:name="TabHolder"
>                                android:theme="@android:style/Theme.NoTitleBar"
>                        android:label="MessagEase Settings">
>            <intent-filter>
>                <action android:name="android.intent.action.MAIN" />
>                <category
> android:name="android.intent.category.LAUNCHER" />
>            </intent-filter>
>        </activity>

OK.

> Here's the barf part:
>
> 09-29 18:00:00.361: DEBUG/AndroidRuntime(1238): Shutting down VM
> 09-29 18:00:00.361: WARN/dalvikvm(1238): threadid=1: thread exiting
> with uncaught exception (group=0x4001d800)
> 09-29 18:00:00.400: ERROR/AndroidRuntime(1238): FATAL EXCEPTION: main
> 09-29 18:00:00.400: ERROR/AndroidRuntime(1238):
> java.lang.RuntimeException: Unable to start activity
> ComponentInfo{com.exideas.mekb/com.exideas.mekb.TabHolder}:
> android.content.ActivityNotFoundException: Unable to find explicit
> activity class {com.exideas.mekb/com.exideas.mekb.ArtistsActivity};
> have you declared this activity in your AndroidManifest.xml?

You do not have your ArtistsActivity class in your manifest.

I also really encourage you to reconsider the activities-in-tabs
approach. Unless you have a really good reason for it -- and I have
yet to find one -- use views-in-tabs. You have much less code, reduced
risk of running out of stack space, etc. Here is a sample project:

http://github.com/commonsguy/cw-android/tree/master/Fancy/Tab/

--
Mark Murphy (a Commons Guy)
http://commonsware.com | http://github.com/commonsguy
http://commonsware.com/blog | http://twitter.com/commonsguy

Android 2.2 Programming Books: http://commonsware.com/books

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