CODEWITHSUNDEEP
androidandroid-activity
swdeveloper
swdeveloper

Reputation: 918

How can an Android application have zero activities

I have studied in a book that "In Android, an application can have zero or more activities. Typically applications have one or more activities...".

So what are the situations where an application can have "zero" activities? Is there any example of such an application?

Upvotes: 4

Views: 1201

Answers (3)

Dheeraj Bhaskar
Dheeraj Bhaskar

Reputation: 19039

An Activity is just one of the Building Blocks of an Android Application.

For Example,Your 'Contacts' App is actually two apps - one with the Database(Content provider) and another with the UI (Activities)

You may check if the above is true by going into Settings->Applications>Installed on your android phone/emulator

Check out the first few videos here to get a clear picture : http://marakana.com/s/android_bootcamp_series_2012_video_tutorial,1017/index.html

Upvotes: 2

m0skit0
m0skit0

Reputation: 25873

For example if you only define a Service in an application, you don't need any Activity.

Upvotes: 3

Chintan Raghwani
Chintan Raghwani

Reputation: 3370

When you are using some service. Just take an example of SoftKeyBoard service demo provided by Android.

If you want to see, just open Eclipse File > New > Other > Android_Sample_Project > select version(2.2 o other) > SoftKeyboard >...

Upvotes: 2

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