eclipse下编译cocos2dx工程

## Prerequisites:

* Android NDK
* Android SDK **OR** Eclipse ADT Bundle
* Android AVD target installed

## Building project

There are two ways of building Android projects.

1. Eclipse
2. Command Line

### Import Project in Eclipse

#### Features:

1. Complete workflow from Eclipse, including:
    * Build C++.
    * Clean C++.
    * Build and Run whole project.
    * Logcat view.
    * Debug Java code.
    * Javascript editor.
    * Project management.
2. True C++ editing, including:
    * Code completion.
    * Jump to definition.
    * Refactoring tools etc.
    * Quick open C++ files.


#### Setup Eclipse Environment (only once)


**NOTE:** This step needs to be done only once to setup the Eclipse environment for cocos2d-x projects. Skip this section if you've done this before.

1. Download Eclipse ADT bundle from [Google ADT homepage](http://developer.android.com/sdk/index.html)

   **OR**

   Install Eclipse with Java. Add ADT and CDT plugins.

2. Only for Windows
    1. Install [Cygwin](http://www.cygwin.com/) with make (select make package from the list during the install).
    2. Add `Cygwin\bin` directory to system PATH variable.
    3. Add this line `none /cygdrive cygdrive binary,noacl,posix=0,user 0 0` to `Cygwin\etc\fstab` file.
   
3. Set up Variables:
    1. Path Variable `COCOS2DX`:
        * Eclipse->Preferences->General->Workspace->**Linked Resources**
        * Click **New** button to add a Path Variable `COCOS2DX` pointing to the root cocos2d-x directory.
        

    2. C/C++ Environment Variable `NDK_ROOT`:
        * Eclipse->Preferences->C/C++->Build->**Environment**.
        * Click **Add** button and add a new variable `NDK_ROOT` pointing to the root NDK directory.
        
        * Only for Windows: Add a new variable **CYGWIN** with value `nodosfilewarning`
        
4. Import libcocos2dx library project:
    1. File->New->Project->Android Project From Existing Code.
    2. Click **Browse** button and open `cocos2d-x/cocos2dx/platform/android/java` directory.
    3. Click **Finish** to add project.
    
#### Adding and running from Eclipse

 

1. File->New->Project->Android Project From Existing Code
2. **Browse** to your project directory. eg: `cocos2d-x/cocos2dx/samples/Cpp/TestCpp/proj.android/`
3. Add the project
4. Click **Run** or **Debug** to compile C++ followed by Java and to run on connected device or emulator.


### Running project from Command Line

    $ cd cocos2d-x/samples/Cpp/TestCpp/proj.android/
    $ export NDK_ROOT=/path/to/ndk
    $ ./build_native.sh
    $ ant debug install

If the last command results in sdk.dir missing error then do:

    $ android list target
    $ android update project -p . -t (id from step 6)
    $ android update project -p cocos2d-x/cocos2dx/platform/android/java/ -t (id from step 6)