I'm rather new to Android, so please bear with me. I'm developing an application running a service in the background. The service is ONLY supposed to run when requested somewhere in the UI. The service must be able to be stopped through the UI as well. At the same time, while running, the service must be able to pick up intents such as "intent.action.DATA_SMS_RECEIVED" and "intent.action.NEW_OUTGOING_CALL".
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I need to be able to handle/catch Intents while my Activity is closed. So I am looking at either a Service or a BroadcastReceiver. Is it possible to "receive" intents to a service itself? I tried to search, but could not find anything helpful. With a BroadcastReceiver, I am not exactly sure how that works outside of an Activity. Does it depend on the Activity being open/running? Can it run by itself?
Let's say that my Activity is killed by Android(or a task killer app), does the BroadcastReceiver still receive intents and process them? I have used a BroadcastReceiver as a widget, but I do not want to use a widget this time. My goal is to have the user open the Activity to set some options. From there, they would be able to close the Activity, but I would still be able to process Intents that were sent out by the system. I am still fairly new to Android development, so I could be so far away from where I need to be.
What is the difference between 2 ways of interaction between applications on android:
1. implementing service in app #1 and using it in app #2.
2. handling intentions and posting answer intention.
I'm writing an application that consists of a background Service and one or several Activities acting as UI towards this. There will most likely be several different UIs for this service that will installed later on, like custom widgets or UIs. The question is how to solve this in the most efficient way. Is it better to only use Intents for communication between UI and Service (sending control commands with Intents from the UI and listening for Intents from the Service for state and data updates) or should I prefer using IPC communication (AIDL -> Java Stub, binding to the service etc.)?
Since the UI might be started long after the service is started, I would either need to use sticky intents to signal current state, or have a very frequent intent sent by the service if choose to go with the Intent-based design. Which one would be the preferred way in that case? I've read that sticky intents are much more resource consuming than normal intents, but are intents more consuming than IPC directly towards the service? Also, is really an AIDL the right way to allow third-party integration? Intents sounds better, since they are also asynchronous.
I currently have a Service in Android that is a sample VOIP client so it listens out for SIP messages and if it recieves one it starts up an Activity screen with UI components. Then the following SIP messages determine what the Activity is to display on the screen.
For example if its an incoming call it will display Answer or Reject or an outgoing call it will show a dialling screen. At the minute I use Intents to let the Activity know what state it should display. An example is as follows:
Intent i = new Intent();
i.setAction(SIPEngine.SIP_TRYING_INTENT);
i.putExtra("com.net.INCOMING", true);
sendBroadcast(i);
Intent x = new Intent();
x.setAction(CallManager.SIP_INCOMING_CALL_INTENT);
sendBroadcast(x);
Log.d("INTENT SENT", "INTENT SENT INCOMING CALL AFTER PROCESSINVITE");
So the activity will have a broadcast reciever registered for these intents and will switch its state according to the last intent it received...............
Is it possible, with an IntentService, to send another intent to the IntentService from within the IntentService? For example, say my IntentService is processing an Intent which has it write a bunch of data to the database. During this time, several other Intents to write other data may [or may not] have been queued up in the IntentService. Suppose, after processing that Intent by writing the data to the application's database, I want to queue up another Intent to send that data via web service to "the cloud." Perhaps I want to queue this processing in another Intent because sending to the cloud is secondary. Is it possible? Would it cause any problems if the Intent being processed is the only Intent in the queue at the time the IntentService is trying to queue another Intent?
View 2 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 have a Receiver for BOOT_COMPLETED intent and it will start a Service by calling startService with an intent and the Service processes that intent in onStartCommand function by spawning a thread that does a HTTP post to a server.On powerup, sometimes it takes 3 to 5 seconds to get the active data connection on phone, when this happens Service fails to do HTTP post as there is no data connection. Is it possible for the Receiver to send the intent to Service using startService with a delay.? so that when onStartCommand of Service is called data connection is ready to post data.
View 2 Replies View RelatedHow do you pass an intent from a service to a new activity launched from a main activity? There's a passextra( intent src ); but I don't think thats what I am looking for?
activity main > start service( intent wuteverserviceintent );
activity main > start activity( intent newactivityintent );
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?
Was trying to call another application using an *explicit* intent, but am finding it does not seem possible. I do not wish to use implicit intents. To test it out, try calling the YouTube main activity.
Intent i = new Intent(); ComponentName cn = new ComponentName("com.google.android.youtube","com.google.android.youtube.HomeActivity.class"); i.setComponent(cn); startActivity(i);
I get this error:
08-29 00:54:26.598: ERROR/AndroidRuntime(7332): Caused by: android.content.ActivityNotFoundException: Unable to find explicit activity class {com.google.android.youtube/ com.google.android.youtube.HomeActivity.class}; have you declared this activity in your AndroidManifest.xml? Does anyone know whether this is possible? (using explicit intents to call another application)
Suppose you have a download service that downloads files asynchronously. For each download intent received it will put the URL of the file to download and the start ID into a job queue and return START_REDELIVER_INTENT. A worker thread then processes that list and calls stopSelf with the start ID it just processed. My question is: If the service's process gets killed and the service restarted, will the service receive all the intents (with the URLs) it hasn't called stopSelf on before it was killed or does the service receive the last intent only? It seems the API docs are ambiguous on this.
The docs say
"if this service's process is killed while it is started [...], then it will be scheduled for a restart and the last delivered Intent re- delivered to it again [...]", indicating that only the last intent gets redelivered (which would be terrible in this use case), but they also say "The service will [...] be re-started if it is not finished processing all Intents sent to it (and any such pending events will be delivered at the point of restart)."
How can I register a sync-service programmatically? For example:
<service android:exported="true" android:name="com.example.test.SyncService">
<intent-filter> <action android:name="android.content.SyncAdapter" />
</intent-filter> <meta-data android:name="android.content.SyncAdapter" android:resource="@xml/syncadapter" /> </service>
How would I register this service at run-time?
I want to answer a phone call. I found the intent android.intent.action.ANSWER but it seems that the only effect that I obtain is an ActivityNotFoundException. Why? Is it a deprecated intent? How can I achieve answer? I have also heard about the "telnet technique". What is that?
View 2 Replies View RelatedI know this has been asked before, but at this time the answer of the post is not true.
http://stackoverflow.com/questions/2610587/how-to-programmatically-answer-a-call
Vringo and other apps does answer the phone by pressing a button on their app, so there must be a way to do it.
Anyone has a suggestion?
Can any one tell me how can i hangup/terminate call programmatically?With the help of intent.
View 2 Replies View RelatedIs android supports the terminating the phone call programmatically using either intent or any APi? If not now then can we see one of the above in the future sdks??
View 2 Replies View RelatedI am new to Android. I would like to create an application that will hang up an outgoing call after it has been ringing for several seconds.
Based on what I have read in the discussions so far, we can abort a call that has just been initiated by using setResultData(null) on the BroadcastReceiver. This just means we can effectively censor calls only. Not exactly what I am trying to achieve.
If the ability to abort a call after it has started ringing is not supported by the SDK, what other means is there for me to achieve this? Are there any internal functions that I can use?
I have some code that is creating and removing alarms, and which works great in Android 1.5 and 1.6 but breaks on the Android 2.0 AVD.The code that's giving this exception is: Code...
View 3 Replies View RelatedHow can i call one activity to other activity without using intents and services?
View 3 Replies View RelatedI'm developing a GPS tracking software on android. I need IPC to control the service from different activities. So I decide to develop a remote service with AIDL.This wasn't a big problem but now it's always running into the methods of the interface and not into those of my service class. Maybe someone could help me?If i now try to call a method from an activity for example start(trackId) nothing happens. The binding is OK. When debugging it always runs into the startTracking() in the generated ITrackingServiceRemote.java file and not into my TrackingService class. Where is the problem? I can't find anything wrong.
View 1 Replies View RelatedOne of my clients wants a code method that returns a boolean. True if the Android phone has hardware red/green call/hang up keys and false if it does not.But not in a key press event as in the code snippet above. He needs to determine this up front if a phone has physical red/green keys or virtual ones.Is it possible and if yes can someone provide a code sample to achieve this?
View 1 Replies View RelatedI'm trying to write a convenience app that needs to bring up the active dialer for a connected call, but I'm having issues after trying a couple of approaches.
ACTION_DIAL - I've tried starting a new dialing activity and while this brings up a new dialer, it's not connected to the existing call so pressing buttons on the new dialer produces no dial tones on the receiver's end.
ToneGenerator - Created my own little dialer activity and hooked up ToneGenerator calls in response to button clicks, but then found out that it only generates tones in the dialer's earpiece and not on the receiver's side.
So... Is there any way to programmatically send dial tones to an active call? Any way to bring up the dialer of the active call and not the dialer for a new call?
i want to call a web service call, for that i used ksoap(j2me).when i do a service call i am getting the following exception java.lang.NoClassDefFoundError: javax/microedition/io/Connector.
View 3 Replies View RelatedI hosted my service WCF (.net) using a windows service,i can access to the service from any browser but when i tried to call it from android it doesn't respond. it works fine before the hosting procedure (i used host client by default on Visual Studio).The url that i try to attempt is from android emulator, and installed my webservice in the same local machine(endpoints address http://localhost.).
View 7 Replies View RelatedI am requesting information from a web service in my android app. The web service returns a list of items, each item having a base64 image and some info
First method: simply access the web service and get the result. This means freeze of UI until data is downloaded. Not a good solution
Second method: put the data download in a thread, and display a progress bar with a message.
private void StartGettingData()
{
viewInfo = new Runnable(){
public void run() {
getData(); //from the web service.......................
I can call a webservice with KSOAP2 from android,now i want to know is it possible to call it without using KSOAP.
View 1 Replies View RelatedI have a Service which is typically bound to, but sometimes needs to go into a mode where it should be active even if nobody is bound to it. Therefore, startService() must be called so it can be explicitly started & stopped. In my case, when exactly this should happen is best determined by the service itself, depending on its state (after being bound to). Can the Service (at the appropriate time) just call startService() from it's own Context?
View 5 Replies View RelatedI want to call my asp.net webservice for every 50 seconds (for different methods) .How can I achieve this...
View 3 Replies View RelatedI am new to andriod and facing a problem to a web service in andriod i have web service given below http://finservice.sigmatec.com.pk/server.php?wsdl i have seen many sample but they dont seems to be working..can any one guide me how can i call its function and get the data on andriod screen??? i am using ecslipse with ADT ..
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