I've a service that is receiving UDP data from the network. I want to push this data from the service to a UI activity.
One way to do it is using broadcast Intents. What is the performance overhead of sending broadcasts frequently from the service to the activities?
Are there any other alternatives for doing this?
View 1 Replies
I am having issue for sending data from service to Activity through notification , I click a notification a activity get invoked but when i try to add some parameters through bundle i am not able to get the parameters in that called intent , I have gone through the link
http://stackoverflow.com/questions/1198558/how-to-send-parameters-from-a-notification-click-to-an-activity. but still no luck has any body occurred with the same issue.
So I'm getting really confused on how to do this whole thing and I was hoping someone could break it down for me a little bit.I have a service that should always be running, and at certain times it needs to alert the user that a task is to be completed(probably through a notification bar icon). When the user accepts the task, the service needs to look into the local database, construct some non primitive objects, and give them to the activity that it just started.I have looked all over and gotten very confused as to a proper approach so I have a few questions to help me wrap my head around it.If an activity creates a local SQLite database can the service and activities of that application access that same database later?Does the service and activity need to be in the same or separate packages? I would think no but for some reason I remember seeing something about this elsewhere.
How would I do the data transmission from the service to the activity? I was thinking a content provider but it seems like there should be an easier way for the service to just hand off the data. Similar to an Intent but for non primitives.
I want to create an app that contains a Service S and an Activity A. The Service S is responsible for preprocessing, such as preparing the data shown on the UI of the Activity A, before the Activity A gets invoked.I want to be able to invoke the Service S from outside the package, say from another Android app's Activity class B, do the preprocessing, and then when the data is ready, invoke Activity A. What is the best way to share data between the Service S and Activity A?How can the external activity B communicate with the Service S to determine if it has completed with all its preprocessing, and the Activity A is ready to be invoked?
View 1 Replies View RelatedHow do I get data within an Android Service that was passed from an invoking Activity?
View 1 Replies View RelatedI am little confused with the use of intents used for sending data to activity from service. In my application I have to have startactivity from the service and have to pass data ,so that activity can utilize the data while launching.For this i have written the following code Intent intent = new Intent(Service.this,Activity.class); intent.putExtra("data", data); intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); context.start Activity(); I assume that the data is passed to the activity and can be parsed on the oncreate function of the activity.Now the service running in the background has to pass data to the activity continously for UI updates.For this I have written the following codeIntent intent = new Intent(Service.this, Activity.class); intent.putExtra("Data", data); intent.setAction(Intent.ACTION_ATTACH_DATA); sendBroadcast(intent,null); (Do I need to broadcast the intent???) In activity I have done following things:- Implemented broadcast reciever:private BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { if (Intent.ACTION_ATTACH_DATA.equals(intent.getAction())) { Bundle extra = intent.getExtras(); float Data[] = extra.getFloatArray("Data"); update(Data);
View 4 Replies View RelatedI am a bit new to Android. What I need to do is send data back and forth between an activity and a service locally. The information sent is sensitive and must not be able to be picked up by other apps. This excludes using broadcast and the onBind() function if I understand things correctly? So the activity needs to send some string parameters to the service. Also it somehow needs to tell the service which activity started it so the service can reply to the correct class since many different activities will use this service.
Once the service has fetched the information via a http request it is suppose to send that data (just a long string which will later be parsed) back to the activity that started it. How do I go about doing this? Using static variables/functions is not an option since again many actives will be using this service. Sure it would be possible to use a static array to hold the classes but that just seems ugly. It's only possible to send simple variables (not objects) via the intent? There must be a better way to do this.
I am pretty new to this but I was told I could get good help here. A friend and myself are playing around with creating Android apps (using ADT)
Here is how we are trying to make the program: in activity, user sets threshold values for the X and Y axis on accelerometer. When user hits button "Start", startService is invoked and starts TiltService.
TiltService is designed to run in the background always on the phone without user interaction. TiltService constantly compares the threshold with the accelerometer values and will vibrate if they are off.
My problem is I can't seem to get the putExtra() data correctly. I have overridden the onStartCommand in my service but I get the message "unreachable code" when I save the getExtras() to a bundle.
Here is the relevant code (I can post the whole thing, just do not want to clog up page) code...
I thought I understood the basic of how Intents could pass data, but I guess I don't. Is it obvious what I am missing?
I need to develop an application with downloads the data at the background and update about the progress in the front.
I guess this can be achieved using services and activity and passing data in between the. But, what I need to do is even if I hit back button and then start the activity again. It should check if the service is running or not. If service is not running it should start one else it should display the data from running service.
Something like music player where music is played by a service at a background and activity displays the information. Even on browsing through other activities of the application or hitting back, state of the music player is maintained.
I would like to pausing or putting the application on background when pressing the back button, I don't want the application to go through the destroy state. Things are when I override onKeyDown and when I force to pause or stop the application by using onPause, I have some issuees with the wakelock and application crash, but when I press home button I go through onPause method and I have no exception, it's weird!
View 1 Replies View RelatedUsually, I putExtra inside an Intent to transfer stuff between Activities. But it seems like I can't do this with a Service? Bundle extras = getIntent().getExtras(); That doesn't work for a android Service. How do I send a string from an Activity to a Service then?
View 1 Replies View RelatedI want to know if it is possible to call an activity through background service in android like..
View 2 Replies View RelatedWhenever the memory needs to be reclaimed, the process is being killed by Activity Manager Service in killPidsForProcess. I have a back button in my activity window on right corner of the title bar.
I want to kill the activity completely on clicking the close button. Can I reuse the same function and will it have any major effect? Please help me out in this.
I am new in android development. I want to get data from a web service in android application.But the application is in html5. Now it uses the data from a local xml file.how it get data from a web service?
View 2 Replies View RelatedI need to made an activity (without layout) that on start check if a service is running. if it is true it starts Activity2, if it false it starts Activity1.
I tried with this code:
CODE:............
Enter code here
But when I check, in the onCreate method, if serviceConnect!=null I receive sometime a NullPointerExcption.
I tried also to insert the operation in the method onCreate in an Async Task:
CODE:............
I have a web service, .asmx that when consumed gives a response in the form:
<lData>
<name>...</name>
<posx>..</posx>
<posy>...</posy>
</lData>
I use Ksoap2 to consume the web service in Android, and I see the response as a string anyType {lData=anyType{name=....;posx=....;posy=....;};}
So, I get the right data from my web service, but i don't know how to parse it correctly.
I want to find a way to iterate through the different nodes.
I have tried to use a SAXParser, but can't seem to understand what I should use instead of the url. In the tutotirals I have followed the link to a xml-file on a url, but my url is only part "finished" since i need to consume the web service first. code...
Is this above something I should use, but have another openStream?
I wanna develop an app that uses CSD or Data channel of GSM Service to send data. Can anyone help me out with it?
View 1 Replies View RelatedI did a factory reset 2 weeks ago, because when I uninstalled launcher pro, my dx went black. reboots did not help. Since that factory reset, everything has appeared to be fine though. I just read the big read stickied warning, and figured I better ask about the potential issue.
View 4 Replies View RelatedI want one sample code for startActivityForResult().
Please explain how it works?
Could be a coincidence, but it appears it started happening right after I did the PRL update (*228). I have voice and text, but no email/pandora/weather bug/market. All I get is 'network error...I have done another *228, rebooted several times and did a battery pull.
View 5 Replies View RelatedI am developing an application in which the user require to register first and than got the user page. For that i have made layout and the layout consist many fields, so, i have made part of layout and also made the separate activity for the each layout. The layout like address, phone, etc... After that i have wrote the code for calling an activity and it works fine. It means when i press the "Next" button the another page will come and it will also consist some textview ,edittext and previous and next button. Actually, i want something different like -- When the user fill the first form and he will proceed to next, the content written by the user should not gone when the user press "Next" button. The content should be there which was written by user. And same way i have have 6 pages like that way to complete the registration process. So, have you any idea to solve above problem? I really need your help because right now i stuck at this point. So, please any body help me out of this problem. I would appreciate your help. I am waiting for your reply.
View 15 Replies View RelatedI am using static Arrays and HashMaps to store some values in my AppWidgetProvider class. But they are becoming null when the process dies, so the widget does not work anymore. Are there any alternatives to using static members to store data for an AppWidgetProvider in Android?
View 5 Replies View RelatedMy droid razr was installing an automatic update, made an error and then failed ultimately. It happened over night, so I wasn't even paying attention to it. This morning it was stuck with no service, no data, nothing. I tried turning it off and then back on, putting airplane mode on and then off. No luck. I then did a factory reset. Now it just says "please wait, this may take a few minutes." It does not change. I waited as long as the batter would stay charged. Still nothing.
I also tried re activating it on the verizon wireless website. No luck.
just got my first android device today (the droid) and I wanted to ask you guys, does the gmail app receive emailes via push? I've sent a coupl of emails to my device, and they wont pop up in the gmail app unless i refresh it.
View 5 Replies View RelatedI haven't messed with my settings on my phone about data delivery. Somehow my gmail wont push my mail through, i have to manually refresh it.
Background data is on
Data Roaming is off
Data enabled is on
All my accounts are synced
Notification is on.
I did a reboot just to see and it still didnt fix. is there anyway to fix this?
Has anyone else experienced this since MR2? I would receive alerts to new gmails instantly before MR2, and now I'm lucky if I even get them at all without going into the app and hitting refresh. I checked all my settings and it does appear to be set to automatically sync.
View 5 Replies View RelatedWell this happened once before shortly after MR2, but it was short-lived, now, once again, no many how many times I soft-reset, check my settings, manually retrieve, whatever, my gmail does not appear to push.
View 8 Replies View RelatedI am looking for alternatives to AutoRing. For some reason I cannot get it to work.
View 1 Replies View RelatedFor those of you who have gone outside of the pre-installed options, what are you favorite sources for Widgets?
View 5 Replies View RelatedI've been playing around with some of the other Home alternatives. So far, I found good things and bad things about each one of them. Right now, I'm trying out Helix launcher. I like the fact that I can add any shortcut to the bottom row next to the launcher. Open Home seems to have the most skins available. I like the clean look of the generic Android Home, but 3 screens is a little lacking.
View 49 Replies View Related