i had a media player called camp that plays audio streaming when it is connected to the internet and from sd card when it is not! i have attached the code i need a context middleware that will do the following: camp makes a request for context type to IContextService, the icontextservice take the context type and inform the icontextlistener that the contexttype changed has changed. then i contextlister will inform camp i have attached the project too Keywords: Phone, Android, Mobile