Android Intents - use of Context argument -

for intent constructor -

intent(context context, class myclass) 

what context argument specify ?

also, ever need set context of other application ?

according context documentation:

interface global information application environment. abstract class implementation provided android system. allows access application-specific resources , classes, up-calls application-level operations such launching activities, broadcasting , receiving intents, etc.

or in other words class provides access application.

also, ever need set context of other application ?

no, context of applciation provided android.

normally, 'normal' applications not need bother context. unless need activate application application or send message between 2 running applications.

if want launch application not need context though, not have context of application. instead, can ask android it (using application name), in form on intent:

intent launchintent = getpackagemanager().getlaunchintentforpackage("com.package.address"); startactivity(launchintent); 

see launch application application on android more information.