How to add a Library Project to a android project?

问题

I have created a new android project. I want to have a action bar at the top so I downloaded the Action Bar for Android Library because I want to support devices from android 2.1.

The description says

The action bar component is an Library Project. This means that there\'s no need to copy-paste resources into your own project, simply add the action bar component as a reference to any project.

I am new to android so what does this mean? How can I add the library to my existing project?

Import the library into your eclipse workspace:

File->Import->General->Existing Projects into Workspace, Next
Select root directory: /path/to/project
Projects->Select All

At this point it fails because there is nothing to select and the next button is deactivated.

Any ideas?

回答1:

File->New->Other
Select Android Project
Select "Create Project from existing source"
Click "Browse..." button and navigate to johannilsson-android-actionbar\actionbar
Finish (Now action bar project in your workspace)
Right-click on your project -> Properties
In Android->Library section click Add
select recently added project -> Ok
that's it!

Now you can use it

回答2:

Checkout this documentation on how to reference a library project in eclipse.

From the link above:

In the Package Explorer, right-click the dependent project and select Properties.
In the Properties window, select the "Android" properties group at left and locate the Library properties at right.
Click Add to open the Project Selection dialog.
From the list of available library projects, select a project and click OK.
When the dialog closes, click Apply in the Properties window.
Click OK to close the Properties window.