android-support-v7包的添加

从网上摘抄下来的适用于Eclipse

Create a library project based on the support library code:
Make sure you have downloaded the Android Support Library using the SDK
Manager.
Create a library project and ensure the required JAR files are included in the project's build path:
Select File > Import.
Select Existing Android Code Into Workspace and click Next.
Browse to the SDK installation directory and then to the Support Library folder. For example, if you are adding the

appcompat

 project, browse to 

<sdk>/extras/android/support/v7/appcompat/

.
Click Finish to import the project. For the v7 appcompat project, you should now see a new project titled android-support-v7-appcompat.
In the new library project, expand the 

libs/

 folder, right-click each 

.jar

 file
and select Build Path > Add to Build Path. For example, when creating the the v7 appcompat project, add both the 

android-support-v4.jar

 and

android-support-v7-appcompat.jar

 files
to the build path.
Right-click the project and select Build Path > Configure Build Path.
In the Order and Export tab, check the 

.jar

 files you just added to the build path, so they are available to projects that depend on this
library project. For example, the 

appcompat

 project requires you to export both the 

android-support-v4.jar

 and 

android-support-v7-appcompat.jar

 files.
Uncheck Android Dependencies.
Click OK to complete the changes.

You now have a library project for your selected Support Library that you can use with one or more application projects.

Add the library to your application project:
In the Project Explorer, right-click your project and select Properties.
In the Library pane, click Add.
Select the library project and click OK. For example, the 

appcompat

 project should be listed as android-support-v7-appcompat.
In the properties window, click OK.

Once your project is set up with the support library, here's how to add the action bar:
Create your activity by extending 

ActionBarActivity

.
Use (or extend) one of the 

Theme.AppCompat

 themes
for your activity. For example:

<span class="tag" style="color: rgb(0, 0, 136);"><activity</span><span class="pln" style="color: rgb(0, 0, 0);"> </span><span class="atn" style="color: rgb(136, 34, 136);">android:theme</span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="atv" style="color: rgb(0, 136, 0);">"@style/Theme.AppCompat.Light"</span><span class="pln" style="color: rgb(0, 0, 0);"> ... </span><span class="tag" style="color: rgb(0, 0, 136);">></span>

Now your activity includes the action bar when running on Android 2.1 (API level 7) or higher.

On API level 11 or higher

The action bar is included in all activities that use the 

Theme.Holo

 theme
(or one of its descendants), which is the default theme when either the 

targetSdkVersion

 or 

minSdkVersion

 attribute
is set to 

"11"

 or higher. If you don't want the action bar for an activity, set the activity theme to 

Theme.Holo.NoActionBar

.