How to change the startup activity in android?

Question

I have two activities namely login and calendar in my Application. Currently my startup activity is \"calendar\". I want to r

Answer 1

remove the intent-filter code from calendar Activity tag in manifest and add it to the Activity you wanna load first

I mean paste it in the activity you like to run as default.

Where as

From the docs

category -- Gives additional information about the action to execute. For example, 

CATEGORY_LAUNCHER means it should appear in the Launcher as a top-level application, while 

CATEGORY_ALTERNATIVE means it should be included in a list of alternative actions the user can 

perform on a piece of data.

MAIN means that this activity is the entry point of the application, i.e. when you launch the application, this activity is created.