File Downloadin in android with service? - android-emulator

When i downloadin a file from Web in android, then i want to show progress bar in notification area of status bar through service, but i can not able to do this. how can i do it. I am not able to pass the file length in service. Please help me.
thanks in advace

Check the AsyncTask. This can help you implement your UI thread without having problem with background threads. http://developer.android.com/reference/android/os/AsyncTask.html

Related

B4A How to popup a message box on top of non-related apps

I need to run a service that notifies an android phone user with a button/messagebox that there is a message waiting for them in a background app. I have a scheduler program that does this very thing. Can someone help me with the code or point out some code that will do this?
Thanks

How to establish app to app communicaiton using socket on same device in iPhone without any server component?

I want my app to intercommunicate with my service,send and receive data to and from service
Check this:
How can I transfer files from one application to another in the same iOS device?
UIDocumentInteractionController class reference
Hope this might help to achieve your goal
There's plenty of references about that'll help you with what you're trying to achieve, I'd recommend doing a little research and attempting to get something basic working.
To get any help, you'll need to provide a bit more information - what protocol does your service operate on? what is the function of the app? what have you tried?
This place is an invaluable resource to programmers who ask for help, rather than an entire solution. :)
Good Luck!

How to keep user notified that application is running in background?

Since few days i am searching for the functionality which will allow me keep user posted that application is running in background. I have attached a !image for what exactly i am looking for. i tried googling but could not get exactly what I need. when i tap on the flashing red bar it takes me back to the application.
Thanks in advance.
The red banner you pictured is provided by the system, is shown only if your application uses background audio recording (see AVAudioSession), and doesn't provide the opportunity for you to choose what happens when the user taps it.
Unless your app fits into one of a few specific classes, it doesn't actually "run" while in the background. Instead, it's "suspended" -- still in memory, but gets no CPU time. What happens outside of your app is thus up to the system, not to you... the only way to show a banner that will launch your application is to use a push notification service or UILocalNotification, but those banners are only shown briefly, and you don't get to control their duration. What you seem to be specifically asking for isn't possible using public API.
The kind of notification you want isn't supported by the current iOS for third-party developers.
If you want that kind of functionality then implement Apple Push Notification service through
this you can first give message to Apple push notification service. then Apple service
automatically generate notification for your App as you want.

Voip app using background task

Now I am developing a voip app.
Is it okay to use background task to keep my app alive? so app can received incoming state to pop up a notification from the background.
I try CFStreamCreatePairWithSocket, but still can't get info from nsstream event callback.
If I use background task, App can get incoming state as it does in the front.
Thanks a lot.
Please always make sure to provide all required information to get quick help. e.g. Provide some code snippet if possible, provide information regarding which version of OS you are using etc.
Check following answer: It may help you. How to Maintain VOIP socket connection in background?

how much time did apple provide to run application in background in iphone os

Hi i have 1 problem to run application in background.
I have task to run the application in the background and at some specific time give alert and check it.
So my question is that Can apple allowed me to run application in background for long time. and if they provide then is their some specific time for it.
Please provide me help for it.
The apple documentation goes over all of this pretty well. Here is the link.