push notification

http://blog.csdn.net/daydreamingboy/article/details/7977098

http://blog.csdn.net/nullcn/article/details/6397253

http://www.raywenderlich.com/32960/apple-push-notification-services-in-ios-6-tutorial-part-1

推送用的certificate，要用对应的profile build project，而且要改 both project setting and target setting 

You can try the following:

• Make sure your Xcode project is configured to use the explicit bundle ID from the provisioning portal
• Make sure you're not building the target with wildcard or team provisioning profile, check this on the project AND target settings
• If you created your provisioning profile before configuring the app ID for push, regenerate the provisioning profile

Also look at the error object in the UIApplicationDelegate method

application:didFailToRegisterForRemoteNotificationsWithError:

EDIT 1

Open your provisioning profile in a text editor and look for the string

<key>aps-environment</key>

If your profile does not contain this, it is not correctly set up for push.