Android :: Analog Of Start Activity For Result For Service

Jul 14, 2010

Despite similar question was asked, I have differnet situation: My app consists mostly of a background Service. I want to start external activities and get results back.I see several options:Create dummy Activity and keep reference to it for using its startActivityForResult. This consumes quite a lot of memory, as we know. Use Broadcast Intents instead of Android's results infrastructure: ask client activities to broadcast their results before closing. This kind of breaks the idea and not so performance-efficient. Use Instrumentation directly - try to copy code from startActivityForResult into my Service. Use Service interfaces - serialize and add AIDL connection to the Intent for starting an Activity. In this case Activity should call Service directly instead of providing result. The third approach feels closer to Android for me, but I'm not sure if it's possible to do - Service does not have its Instrumentation, and default implementation seems to always return null.

Android :: Analog of start Activity For Result for Service


Android :: Start Activity From Service - And Getting Result From It

Feb 11, 2010

I have a Service which needs to receive data from external packages. So, to locate the data providing external packages, I use activity- filter and PackageManager.queryIntentActivities function to locate the interesting packages. Now, from each such package, I need to get a ContentProvider URI. So I want to start the external Activity and the external activity will return a result to my service - something like "startActivityForResult". The problem is that there is no way to call "startActivityForResult" from a Service, only Activity can do that, and my project does not have any Activity, and probably can't show UI for the user.

The bottom line: Can anyone suggest a way to get ContentProvider URI from an external package, while my package has only a Service?

View 22 Replies View Related

Android :: How Does Service Return Result To Activity

Oct 1, 2010

i seem to have a classic task, yet i can't find any examples on how to do it.i want to download something. well i call a web service and get a response but its pretty much the same.in order to do this i have an activity that starts a service that spawns a thread that does the job.now i would like to use the data i got in the activity that started the service.(i assume that starting another activity to handle the job of displaying the result would be simple)my problem is how does the service notify an activity (the one that started it or another one) of something.

View 1 Replies View Related

Android :: Activity Check Service To Start Another Activity

Sep 10, 2010

I 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:............

View 2 Replies View Related

Android :: Start Activity From The Service

Sep 3, 2010

I have a launcher activity which gets activated everytime i start the application and a service which complements it. Now as i press the return key from my main activity .Its Ondestroy gets called.Now i have nullify the pointer of the my launcher activity there. now i am listening through the service any event happening on the network after closing the launcher activity thread and if any event occurs i have to relaunch my launcher activity. i have tried intent but doesnot seems to get though it .

View 4 Replies View Related

Android :: Start An Activity From A Service

Oct 6, 2010

I have a service (input method) and from within that service I want to start and activity which was declared in the same manifest. The activity maybe running but in the background.

How do i check its presence and bring it to front, or optionally start this.

From what I can gather from other posts, this is about what I need to do:

CODE:..............

I don't knwo which of thest flags pertain to what I need to do. The docs are quite merky, and my random attempt at making this work failed.

View 4 Replies View Related

Android :: Start Service Without Using Any Activity

Oct 16, 2009

My application has a background process which continuously waits on a socket for receiving messages and it should be started only once and at the time of application starting.Thus i want to do that background job in a service.

The service should not be started from the activity ,it should be started at the application starting.

How can i define the service,which will be started at the time of application starting?

If at all the service is started from activity.The activity can be destroyed and restarted.when this happens the service also be restarted .

View 7 Replies View Related

Android :: How To Start Service From Activity?

Jun 14, 2010

How can I start a service from an Activity ?

View 4 Replies View Related

Android :: Start Service From Activity

Feb 25, 2010

In my app i have an activity from which i want to start an Service.

View 3 Replies View Related

Android :: Start Activity From Service

Aug 11, 2010

Is it possible to start an Activity from a Service? If yes, how can we achieve this?

View 1 Replies View Related

Android :: Start Activity From Service

Aug 31, 2010

Android:

CODE:...........

I launched this service from activity

In activity if condition satisfies start

CODE:......................

From my location service mentioned above could not launch activity, how can i get context of current running activity in service class.

View 1 Replies View Related

Android :: How To Start Activity From Service - If Not Already Started

Mar 19, 2010

I've successfully implemented a BootReceiver, AlarmManager, and Service per the code here: http://github.com/commonsguy/cw-advandroid/tree/master/SystemServices...

Inside the doWakefulWork method of the Service I am instantiating a few classes, but some of them require my Activity to be running. How do I actually start the Activity? The code above only starts the AlarmManager and Service.

There are also times where the Activity *is* already started, like if the user manually opened it. So I also need to start the Activity "only if it's not already running". Hows that work?

And what about the situation where the user first installs your application and may not even reboot their phone for a week. In that case, do you have to start the Service from the Activity? But then the Service will die with the Activity.

View 7 Replies View Related

Android :: How To Wait For Service On Activity Start

Nov 2, 2010

I am making an application that has Activity which communicates with a single service, and is used to start, stop or change settings of that service. I used a singleton approach from this tip.

My problem is that busy-waiting is not working for me and I can't attach a listener to the service because activity gets blocked. I want the service to start or get it's current instance at application start so I put the busy-waiting in onCreate. I'm guessing I'm doing this very wrong, so how do I do this appropriately?

View 2 Replies View Related

Android :: Start Activity From Service - Running In Background

Nov 13, 2009

I want to develop a application that continuously running in background as service. And after that if i press any numeric key, it should start an application.

I have developed a service which is running continuously. Is it possible in Android?

View 2 Replies View Related

Android :: Activity Is Unable To Start Service In Same Package / What I Am Missing?

Jun 9, 2009

I have a service class my.app.MyService that I'm attempting to launch from my.app.MyActivity as follows:

Intent svc = new Intent( this, MyService.class );

The manifest contains the entries:

<uses-permission android:name="android.permission.ACCESS_BACKGROUND_SERVICE" />

<service android:name =".MyService" />

LogCat gives the message:

"Unable to start service Intent { comp={"my.app/ my.app.MyService" } } : not found"

Could someone kindly let me know what I am missing?

View 3 Replies View Related

Android :: Android Service Design - Start With Activity Or When Needed?

Nov 24, 2010

I'm an android noob that is looking for some advice on how to properly use a service in Android. I am building an app that will connect to a server on the Internet to get a data stream via TCP. That data then needs to get send out to another device that is connected via a bluetooth serial port. I want this to continue to function in the background while the user looks at a different activity. The app will be a NTRIP client, which pulls real time RTK correction data from the Internet and sends it to a RTK GPS receiver that I connect to via bluetooth. The data rate will be about 500 bytes/second. The user interface is a single button to connect or disconnect the data stream and some text to show status of the GPS receiver. There are also a few settings that will need to be configured by the user such as the IP/port of the server to connect to and the bluetooth device to communicate with.I think I need to have the main activity spawn a local service, and then have the service spawn a thread for the TCP stream and another thread for the bluetooth connection. Does this sound right? What is the best model for the service in this scenario?-Start(bind) the service every time the activity starts, and have the connect/disconnect button send commands to the service to start/stop the threads. If I go this route, the service will continue to run after the user disconnects and goes to another app. The service would need an inactivity timer to terminate itself.-Start and stop the service when the user presses the connect/disconnect button. The service only runs when data is moving. If I do this, the activity will need to see if the service is running when the activity starts, in order to know if it should bind to the service or tell the user that the link is disconnected.

View 2 Replies View Related

Android : Can I Get Result From A Sub Activity?

Aug 5, 2010

When user presses a button from a webview, I open a scrollview activity with some buttons and edittext fields.

Once the user enters the fields and presses the 'create' button, from scrollview activity, I want the results from the called activity to be accessible. How can I do thi?

View 1 Replies View Related

Android :: Droid Sqllite Taking Long Time To Complete / Options For Moving To Start Of Result Set?

Nov 2, 2010

I am working on building an android app but I'm nothing that my SQL operations are taking forever to complete

I have profiled the app to narrow it down to the act of moving the Cursor to the first row of the result set for a simple select query (only returning 1 row where I'm testing it to eliminate the size of the result set as a problem.

Are there any better options for moving to the start of the result set?

edit:

some code...

this runs 3 times and i have time it to approximately 2 secs for all the rest of the code or over a minute with this in.

i have also run just the rawQuery statement with out the move to first and its takes bout 18 secs so im looking at the worst part of the code first.

View 1 Replies View Related

Android : Need To Get Result Back From Activity?

Mar 10, 2010

I'm doing some network job in AsyncTask. Sometimes it requires communication with user. (connection is dropped, session is expired and so on). I want to pop up a dialog or launch an Activity, and then, depending on user's input, stop the job or redo it. I can launch any Activity from AsyncTask, but how to get result back? It seems to be possible only if I launch new Activity from another Activity. What are possible solutions?

View 5 Replies View Related

Android :: Get Mail Sent Notification In Activity Result

Aug 30, 2010

I am launching a mail activity by
//Sending mail final int SENT_MAIL = 1;
startActivityForResult(Intent.createChooser(i, "Send mail"),SENT_MAIL);
and in
onActivityResult(int req, int res,Intent data)

I am trying to find the result of email sending, so as to confirm if my mail was sent or was discarded by the user. I am receiving null for Intent data.
i.e. data =null
parameter in onActivityResult(int req, int res, Intent data), res is always 0.
ie. res = 0;

View 1 Replies View Related

Android : Way To Get Result From Settings Activity Intent?

May 4, 2009

I am currently trying to launch a GPS settings activity using startActivityForResult....however it never seems to be calling my onActivityResult function after it exits. I noticed the docs mentioned that some Intent protocols are not defined to return a result, is this one such example? are there any flags that I could set to either make the settings activity call onActivityResult, or even better make my activity block until the launched activity returns?

View 5 Replies View Related

Android : Receive CameraActivities Result In A Different Activity?

Mar 12, 2010

I hope the title says it all: I've got Activity A which fires up the Camera intent via:

Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(intent, REQUEST_CAMERA);

After the picture is taken I can easily grab the picture in:

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data)

But I'd like to receive the result in Activity B in which the image can be edited.
Right now I'm receiving the result in Activity A and pass it over to Activity B which results in showing the GUI of Activity A for a short while:

Intent i = new Intent().setAction("DisplayJPEG");
i.setClass(this, EditImageActivity.class);
i.putExtra("IMAGE_URI", uri);
startActivityForResult(i, REQUEST_EDIT_IMAGE);

Of course, I will need the result from Activity B in Activity A after the image has been edited. But that should work with:

setResult(resultCode, data);

So there has to be a way to do what I need. Please point me into the right direction.

View 3 Replies View Related

Android :: Get Result From Search Manager To Main Activity

Nov 18, 2010

Activity A is main activity. Whereas Activity B is SearcActivity (Search Manager). Activity B is List Activity, so whatever result comes, result is displayed in the list. Once user clicks on the list, I want to get that list selected item to be returned to ActivityA.What I did. Code...

View 3 Replies View Related

Android : Return A Result (startActivityForResult) From A TabHost Activity?

Mar 23, 2010

I have 3 classes in my example:
Class A, the main activity. Class A calls a startActivityForResult:

Intent intent = new Intent(this, ClassB.class);
startActivityForResult(intent, "STRING");

Class B, this class is a TabActivity:

Intent intent = new Intent(this, ClassC.class);
tabHost.addTab...

Class C, this class is a regular Activity:

Intent intent = this.getIntent();
intent.putExtra("SOMETHING", "EXTRAS");
this.setResult(RESULT_OK, intent);
finish();

onActivityResult is called in Class A, but the resultCode is RESULT_CANCELED instead of RESULT_OK and the returned intent is null. How do I return something from the Activity inside a TabHost?

I realize that the problem is that my Class C is actually running inside of Class B, and Class B is what is returning the RESULT_CANCELED back to Class A. I just don't know a work around yet.

View 4 Replies View Related

Android :: Unable To Start Service Intent Service Not Found

Aug 20, 2009

I am getting following message when i try to launch service.Also is there any specific path on file system where we need to place the .apk file which contains my serivce component only.

View 2 Replies View Related

Android :: How To Pass Result From Activity Terminated By BACK Button?

Apr 20, 2010

I am trying to setResult after the BACK button was pressed. I call in onDestroy. So, how can I pass result from activity terminated by BACK button?

View 2 Replies View Related

Android : Forward Activity Result To Parent With SingleTop Launch Mode?

Jun 1, 2010

I have two activities: a MainListActivity, and a DetailViewActivity. DetailViewActivity is set with android:launchMode="singleTop".

When clicking an item in the "main list" activity, it launches the "detail view" activity via:

startActivityForResult(detailIntent, REQUEST_CODE_DETAIL);

If I then call setResult(RESULT_OK, resultData); and finish(); from within the Detail activity, that resultData is received by the "main list" activity's onActivityResult(..) method correctly.

However, if I implement a "see previous"/"see next" type of navigation within the Detail activity, and implement it using singleTop, that result no longer gets sent back to the initial activity:

Intent nextItemIntent = this.createIntent(nextId);
nextItemIntent.setFlags(Intent.FLAG_ACTIVITY_FORWARD_RESULT);
startActivity(nextItemIntent);
// at this point, my DetailActivity's onNewIntent() method is called, and the new data is loaded properly

But from here, when I call setResult(..) and finish(), my MainList activity never receives the new/updated result. Anyone know what I'm doing wrong?

View 1 Replies View Related

Android : Default SMS Activity Result Code Coming As RESULT_CANCELED Even SMS Is Received Successfully

Jul 20, 2010

I am invoking the default SMS activity by using the following code-

intent = new Intent(Intent.ACTION_VIEW, Uri.parse("sms:")); intent.putExtra("sms_body", "SMSText"); startActivityForResult(intent, 11); //Here 11 is my request code

The SMS activity gets opened in emulator (5554), i type the number 5556 (device number of my second emulator) and click on "Send"

The SMS is received in second emulator(5556) successfully. I click back on 5554 (my SMS generating emulator )and come back to my application. I notice that the onActivityResult method is getting called successfully as desired.

When i check for the result code i get it as RESULT_CANCELED ( 0 ) instead of RESULT_OK (-1). The data is also coming as null.

View 3 Replies View Related

Android :: Start An Activity And Return Back To Original Activity

Jan 26, 2009

I have an application with contains multiple activities. The main activity will start the others ( use startActivity() ) depends on user event, when an activity close, it calls finish() and return back to main activity. It appears to behavior like that.

However, the "problem" I see is main activity's onCreate function is called every time. I think the the main activity should be placed in the activity stack and simply push to front when others exit, therefore only onResume, onStart are called. Is there some flag I need to set or I misunderstand the activity behaviro?

In child activity, besides calling finish() or startActivity for main activity, what is other way to move main activity to front?

View 2 Replies View Related

Android :: Start Activity When Main Activity Is Running In Background

Jan 10, 2010

I created an application which enables the user to set whether he wants to receive notification while the application runs in background mode. If the notifications are enabled an activity should be started (the dialog should appear on the screen).

I tried to enabled it the following way:

CODE:...........

This is the method from main activity. When onPause() is executed isRunningInBackground is set true.
When I tried to debug it when the main application was running in the background the line

startActivity(intent) had no effect (the activity didn't appear).

Does anyone know how to midify the logic in order to start an activity from the main activity when the main activity is running in the background (after onPause() is called)?

View 1 Replies View Related







Copyrights 2005-15 www.BigResource.com, All rights reserved