问题
I have a problem as: I didn't find where can I get this Jar file gcm.jar? also where Can I put it ?. Note I used Android 4.1.
回答1:
Start SDK Manager and scroll down to the section "Extras" and make sure you have installed Google Cloud Messaging for Android Library, if not, install the package.
The package will be installed in the directory "your-android-sdk\extras\google\gcm\"
Client code (for example to be used in Android app):gcm\gcm-client\
Server code (where the Client connects to and registers it's regId):gcm\gcm-server\
To add the gcm client-jar (gcm.jar) to your Android-project, copy it to the "libs"-folder in your Eclipse project and right click on the file and select Build Path --> Add to Build Path.
回答2:
The GCM Helper libraries (gcm.jar) has been deprecated. The documentation for the library (https://developer.android.com/google/gcm/helper.html) now displays a messaging stating:
The information in this document has been superseded by GCM Server and GCM Client. Please use the GoogleCloudMessaging API instead of the GCM client helper library. The GCM server helper library is still valid.
Implementing a GCM server is documented here: https://developer.android.com/google/gcm/server.html Implementing a GCM client is now documented here: developer.android.com/google/gcm/client.html (sorry, can't post as a link because I don't have enough rep).
回答3:
As on today's date, SDK Manager now has the option to "Show obsolete packages" (Packages->Show obsolete packages). This allows you to install GCM through the SDK Manager itself.
回答4:
Go to this link
https://dl-ssl.google.com/android/repository/gcm_r03.zip
when download completes extract the zip file, you will get three directories with names client side, server side and samples.
now open your SDK folder and create a folder named "extras/android" and paste all three folders here DONE!!
now whenever make a new project in project classpath using add external jar add gcm.jar.
refer
回答5:
Just for the Recored: I followed the steps provided by chrkad but I found the .jar file in the DIST folder and NOT in the JAR folder. After I found that out I saw that Peter Gluck postet that before.
I hope that this could save some time to ppl having this issue! (took me 20 minutes)
回答6:
Seems like this package is now obsolete. In order to see it in SDK Manager I had to check "Show obsolete packages" in the "Packages" menu
See details from answer
https://stackoverflow.com/a/23092848/4255980
来源：https://stackoverflow.com/questions/12264761/add-gcm-jar-in-eclipse-ide-google-cloud-messaging