广播接收器被视为服务吗？

Question

I was digging this forum but couldn't find an answer to my questions ....

1, I developed SMS application by extending broadcastreceiver and everything is working great, the problem is that after the phone is sleeping for a while - the application is no longer working. So is broadcastreceiver considered a Service ? ( that will be killed by the Android after it's been idled for X minutes ).... because I don't have the "START_REDELIVER_INTENT" like I have inside a Service .... and I read some posts that said to use the AlarmManaget - but I don't understand why. ( the examples posts were not about receiving SMS though ... were in regards to calendars etc ... )

Bottom line - how do I fix this ? if I need to use a service to run itself after the android kills it - I don't understand how to convert my broadcastreceiver to be a service... ( because it's the only thing that needs to be running ... everything else is just settings and preferences ....)

2, When I install GOSMS for example, the android ask me - from now on which app would I like to work with as my default SMS program, what to I need to code in order to achieve this kind of notification to the end-users ? right now my application only receive SMS notifications ... doesn't send anything ...

Thanks in advance....

Answer 1

So is broadcastreceiver considered a Service ?

No, that's why it's called BroadcastReceiver and not Service .

Please see Application Fundamentals to properly understand the various key components of an Android application.

Also, if you have correctly registered your BroadcastReceiver's <intent-filter> in your AndroidManifest.xml then it will be 'woken up' to process Intents although as Jens mentions that may require you acquiring a WakeLock of some sort (and correctly acquiring/handling/releasing various resources during/after your task is accomplished).