android - call activity from a library project -

i have problem. have make android project library , want call activity inside library difference project. in different project have go properties , choose first project library.

the library project have packages. package name contains activity com.jwetherell.augmented_reality.activity -> demo.java

now in other project want call demo.java activity package com.mdl.cyrestaurants.guide -> mainactivity.java

i'm trying call this

public void nearme(view v) {     startactivity(new intent("com.jwetherell.augmented_reality.activity.demo")); } 

but have problems. have write in androidmanifest? thank you.

yes, activity must listed in manifest.

something like:

<activity android:name="com.jwetherell.augmented_reality.activity.demo" />  

or if package name 'com.jwetherell.augmented_reality' have specify this:

<activity android:name=".activity.demo" />