Android :: Stopping Background Services During An Android Activity
Mar 17, 2010
I am developing an android game right now, and it requires very precise timing and synchronization. That said, it is essential that there is no lag during the game. However I sometimes get lag spikes in the game, and I know its not the GC because I have run the ddms tool, and eliminated all the GC calls. However, I do see alot of background services popping up in my ddms logcat. Is there anyway to pause all services when my game is running?
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Aug 14, 2010
I have a service running (Socket), this is how i start the service.
CODE:.......
But this doesn't seem to stop my service? Am i missing something? I need to destroy my service as soon as the home button is clicked.
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Mar 12, 2010
How can i call one activity to other activity without using intents and services?
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May 6, 2010
I want to stop an Activity that is in some other application from my Applications service. Is there any mechanism to do so?
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Aug 31, 2010
The only thing i have running on my phone right now is the touch input. is this something that runs constantly? ive tried going fully through the setup again and its still there. anyone know how to end it so its not running all the time?
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Feb 28, 2009
In my game, I've got one activity starting another activity via an intent. When the user is finished with the second activity, they quit it using the back button. However, I have a problem: when this happens, the second activity is still running, even if it's quit with the back button.
My second activity will eventually give a "game over" message using a pop up window if there is no user input for a period of time. Problem is, when I back out of the second activity (where the game is happening) the "game over" message still appears eventually. This is how I know the second activity is still running. It even displays a "game over" message if my entire app is quit (on the Android OS).
How do I stop an activity completely when the user presses the back button?
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Apr 9, 2010
I have a scenario where I start a Service from a splash screen. If I intentionally cause problems in that Service (such as an invalid port for the Socket connection) my UI Thread locks up. I have put a Timer in the Service, and have it perform logging at every tick. The Timer works from within the Service without flaw. So from that, I think I have determined that only the UI Thread is suffering.
If I start a Service from an Activity and that Service has an issue (i.e. server connection problems), should that result in a lockup in the UI thread from which it was launched?
Is there a technique for starting a Service and having it truly run in the background?
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Nov 19, 2009
I have checked for related threads to see if this was formerly addressed. It's been discussed generally, but neither specifically to the CDMA HTC Hero or the procedure I'm going to summarize below:
If you press:
Home --> and hold it for a couple of seconds
You get pictures (icons) of the last six apps you've run.
I was in the Sprint store today and the rep who also uses the HTC Hero told me there's an App that stops them, which can be downloaded at the Android Market.
It's called " Kill-Something? "
It's an App we can download that will force these off and perhaps save battery power, or at least stop them from running in the background.
Questions
1) Anyone know the name of this App?
2) Is it useful? Have you had any experiences with it either positive or negative?
3) Any other tips (in layman terms please) on stopping Apps from running in the background on Sprint HTC Hero?
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Mar 19, 2010
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!
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Apr 4, 2011
I was told that i should be using services in a new .java file in order to invoke and extend to do background video recording, but i don't seems to know how to do it despite reading tons of sites related to services, , i have read tons of it.. I tried using AsyncTask but my lecturer told me cannot. whether is it using AsyncTask or services to perform background recording?
This is what tried for my mainactivity where it performs previewing of the captured image, but how should i convert the startRecording() method to service method in my new startRecording.java file?
Code:
public class CameraTest extends Activity implements SurfaceHolder.Callback {
private static final String TAG ="CAMERA_TUTORIAL";
private SurfaceView surfaceView;
[Code].....
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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)?
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Feb 5, 2013
Are services like Tasker now safe from being killing if running in the background?
I would prefer running such services in background instead of foreground to save space on the notification bar.
So I was wondering how risky is running services in the background with JB?
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May 24, 2013
What is the usage each of this processes and services running in background as below? They use about 61 M of my RAM!
As you see there are 5 services for GO SMS Pro! Why this services begin running after reboot? For google services also a service named android core apps begin running.
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Nov 19, 2010
Is there a way to 'preload' a user interfaces but to not display it until I am ready?
I have a service which has a receiver to listen for action_screen_on to occur. When that occurs, I would like to load an activity. However, as it is now, it takes about 1 second to load. I would like to preload the layout in advance so that when the screen is turned on the layout loads as soon as possible.
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Jun 23, 2010
How to change background of activity and background of the application name at the top of your activity?
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Nov 19, 2010
i have set the background of an activity with a green gradient png image.This working fine almost always but some times during navigating to an activity its background is becoming black! i am not able to reproduce it with any specific operation, also not getting how to debug or fix it.
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Apr 17, 2010
"Note that when you write an activity, you can make it stop or continue running when it is moved to the background (see onStop() in Activity Lifecycle). For activities that download data from the network, it's recommended to let them continue downloading so the user can multi-task." As far as I was aware I had to create a service if I wanted to have a background activity such as a media player, internet download, or processing of data in files on the SD card continue when the activity was no longer in the foreground.I went and reread the onStop information on the "Activity Lifecycle" page, which was referred to. But I didn't find any mention of how an activity might continue to run in the background after onStop was called.
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Aug 5, 2010
I need a way for my Activity to known that it's going into the background, and not when it's getting killed. I thought about hooking at onStop(), but onStop() is called for both cases. In other words, is there a way to tell if when my Activity is moving into the background and not getting killed?
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Jul 14, 2010
Has anyone any idea on how to solve the generic problems related to starting a task in background from an activity and when the task is finished posting the result to the activity that created ? (the activity might get destroyed in the meantime due to a orientation change ,or receiving a call , or might be in the process of destroying and recreation)
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Aug 4, 2010
Is it possible to start an Activity in the background? I need such an Activity that can operate in the background and spawn other Activities as needed in response to user commands issued to my Home Screen widget.
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Jul 22, 2010
Using theme or ImageView ?
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Jan 31, 2010
When i launch Activity A, the screen goes black, then dark-gray. Then A launches B, and the screen goes black and dark-gray again. Is there a way to set the default background color to black? Activity A has no screen, its just a stub that calls B.
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Apr 22, 2010
My use case is writing an overlay controller activity for a landscape camera preview. I followed the instructions from a couple of tutorials for writing a transparent theme.When I start this activity from my root activity, the layout gets drawn correctly, but the background stays black. I tried to use @android:style/Theme.Translucent instead, but this Theme inherits the orientation from the calling activity (landscape) and thats not what I want.The application holding the camera preview is set to landscape view as it does not display the preview correctly in portrait orientation. (see old google bug report)What I wanted to do was to put an independent activity for user interaction interface in front of the camera surface holder (this activity should be set to 'portrait', or even better to 'sensor')
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Sep 9, 2010
I'm not very familiar with the android SDK yet. I have an application (game), which is developed mainly using the NDK, and uses egl to render. i have an activity which handles the egl swapbuffer and runs the games native main loop, pretty straight forward I guess.
Now I have made another activity which host a TableLayout containing an EditText as well as a button (simply for text-input later used by the game). I spawn this activity from my main activity using startActivityForResult. The small problem I'm having now is that I can't manage to make this "popup" activity to have a background, so my paused game will reside in the background, with the various widgets just overlaid. This is not very pretty in my opinion, and I would like to at least have a solid background color for my spawned activity while it's active. I *could* just simply go into some state in the games main loop which clears the gl-screen just before I spawn the new activity. But I don't like this solution and it's a tad more work then I'm prepared to put in just at this time in the project. I'm pretty sure there is some simple way to just set a background color somehow, I just can't find *any* way to do it, I've looked around in the SDK resources and tried to search for any hints towards this, but i'm just not familiar enough with the java SDK to find what i'm looking for.
On a side note I would also like to be able to center the EditText widget as well as the button on the screen once the Activity is active, I haven't looked very deeply into it yet, but from a quick glance of the documentation I couldn't really find any suitable positioning methods in the tablelayout class. But as I said, haven't looked very hard. Can probably solve that one easy, but i'm just throwing this in as well :)
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Jan 11, 2010
How can i make an activity go to background without calling its finish() method and return to the Parent activity that started this .I tried so much but it really dint help.So if you guys could help i would be very thankful.
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Sep 15, 2010
I have next problem, I have got parent activity and few sub- activities, if app goes to the background by pressed HOME button for long time, all children will be killed, and my app restart from parent activity.
For example: A1 - parent, A2,A3,A4 - sub-activities. A1-->A2-- >A3(top), from A3 I go to the background (HOME). wait 30-40 min and
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Sep 7, 2010
How can I get background color and text color (default for child views) of an Activity in Java?
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Sep 12, 2010
I am a bit confused on creating an image which will be acting as a background for my activities. So, in short, my aim is that my application should be able to fit the different screen sizes. Therefore, what size in pixel should my three images be to be able to fill the screen of the device in ldpi, mdpi and hdpi?
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Oct 12, 2010
My goal is to develop a GUI application on top of a background image with buttons in specific places on the image. The first step is to display the background.
The image can be displayed with resources and is described in several FAQs including this one:
how-to-add-background-image-to-activity
It compiles and runs without errors, but the background is black. Here is the main.xml file:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout android:id="@+id/rootRL" xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@drawable/background">
</RelativeLayout>
The image has been in png, 9.png, and jpg format with basenames of 'main' and 'background'. It builds but does not display. Making clean and recompiling does not help.
This behavior occurs on both the emulator and on hardware -- an Atmel AT91SAM9M10-G45-EK. The SDK version is 2.0.1.
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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?
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