Android :: Control Screen Brightness In Android Using Background Service
Feb 8, 2010
I want to control the brightness of screen using a background service in android.
Existing Solutions:- There are similar question posted in the form in below link:-
http://stackoverflow.com/questions/1791340/adding-screen-brightness-controls-to-android-application
Why existing solution will not work? All the solution provided in the link works well with an Activity, but I want to write a Background Service which controls the brightness of the screen.
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Nov 15, 2012
I have a htc sensation xl. My brightness control stopped working and I now I can't change the brightness anymore. It doesn't matter if I set to 30% or 100%, the brightness stays the same.I can only adjust the brightness from 0 to 25%. I already did and wipe and stiched a phone.
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Jun 24, 2010
I have a background service and want to listen to clicks on the screen by the user. Is there any standard procedure or experience in doing this?
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Aug 22, 2010
I'm just wondering to know if a can with a background service have co-ordinates of a touch screen event in all activities.
Such like that code...
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Mar 20, 2009
I have a background service component which is reacting to changes in network connectivity. I would like to alert the user that a a connectivity change event has occurred by popping up a Toast View on the device screen. Is this possible ? Can it be done even though a Service component does not have a UI associated with it ?
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Sep 17, 2010
Is there any way to control the brightness of the 4 bottom buttons, the home, back, menu and search buttons? I use my phone to watch movies in bed when I can't sleep, and in a dark room those 4 things are really bright, and never turn off, it gets distracting.
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Sep 22, 2009
I wondered how everyone set their brightness - I was comparing my Hero with my wife's iPhone at home last night and the Hero was a lot dimmer in comparison because of the auto-brightness. I disabled it for the first time and cranked up to brightness and the display looked so much better - I just wondered what others thought about this and whether battery life would be affected greatly turning up the brightness.
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Sep 23, 2010
is there a way or app to set the level of flash when taking a picture? i know it can be done because the flashlight app has levels of brightness. dont get me wrong, i love the dual LED's, but most of the time i either get a washed out image or an image thats to dark. so, is there a way that i can choose like a percentage or something of flash i want to use?
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Nov 23, 2009
Is it just me or every person I try to take a picture of moves away because the flash blinds the $@#t out of them lol. I personaly love it but wished there was a way to control the brightness.
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Jul 17, 2012
disable brightness control on statusbar ? i have SystemUI file but i don't know how to remove that contol !
i use that SystemUI for my GB 2.3.4 android system
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May 4, 2010
The "automatic" brightness setting sucks. It doesn't detect high light situations, like being outdoors. To get the proper brightness you need to use the power control widget to set the brightness up to see it in sunlight. Not a big deal, but after using the widget you either have to manually reset it to automatic in the settings, turn the brightness off or on high. Its just kind of annoying. When your in sunlight without the brightness up to the highest level I can see nothing on the phone. Literally the screen appears to be off. Is this just my phone, or does the incredible really not sense high light situations.
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Jun 22, 2010
I was wondering if anyone found a way to get the incredible to go lower than the default 11% lowest setting sometimes at night even at this lowest setting it is still too bright and I wish it could go a bit lower also is there anyway to get the 4 home/menu lights to turn off? I really wish there was a widget for this as those too can be distracting when trying to watch a video at night.
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Oct 5, 2010
What is everyones experience or recommendation? Which is better on battery life?
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Aug 6, 2010
I have the X10 and recieved a text message in the early hours of the morning. The green LED which flashes to notify of the event is actually quite bright in a dark room and ended up waking me up (in fact, I was quite confused at first as to what on earth it could be lol!). Does anyone know if there is an app which controls either the brightness of the LED notification or can disable the LED notification altogether?
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Oct 27, 2010
Anybody have any idea why this is not working under 2.2? (nexus one)
WindowManager.LayoutParams lp = getWindow().getAttributes();
lp.screenBrightness = 1.0f; getWindow().setAttributes(lp);
And yes, the auto-brightness is disabled under settings.
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Nov 17, 2009
I use the following code to dim the screen in one of my apps...
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Apr 2, 2010
I am in the process of creating an app that is similar to the build-in SMS app. What I have tried: - running a regular service which worked just fine until android kills the service - using the AlarmManager the make the 5 min. interval call to a service. But I was not able to make this work.
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Oct 28, 2010
I'm trying to control to turn screen off/on. I'm using device HTC G1 (1.6). To turn off screen I write:
WindowManager.LayoutParams lp = getWindow().getAttributes();
lp.screenBrightness = 0f;
getWindow().setAttributes(lp);
But if I want to turn on screen:
lp.screenBrightness = 1f;
getWindow().setAttributes(lp);
Screen not turn on.
if lp.screenBrightness = 0.02f;
screen change bright, but not turn off.
Which right way to control by screen?
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Mar 13, 2010
To save power I keep the screen brightness down low - what I want to know is - is there any app that overrides this setting when my phone rings so that the screen goes to full brightness so I can tell properly who is calling me?
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Oct 1, 2010
I have no clue how to disable the "auto screen brightness" in settings?
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Jul 15, 2009
I'm trying to develop a service, which needs to be run in background as a low priority task and does some complex processing . I need to gracefully quit my service when their is a resource shortage( like CPU running low on memory). Was there any APIs available to know the CPU resource usage, Objectives of my service is to - 1. Exit service when a high priority application(s) is running and which might need entire CPU resources. 2. Should store my states before onDestroy() of my service is called.
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Sep 15, 2010
it is possible in android to show pop-up dialog from background running service?
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Sep 9, 2009
It seems trivial to use GPS in a background service, but how can you do the same with the accelerometer? Everything I've tried seems to require a context, but a background service doesn't have a context?
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Apr 22, 2010
I like to check my service status, e.g. live or be killed. so, I hope there is a command like "ps -ef " of linux.
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Nov 24, 2009
I wish to use implement Service in my application to display a message on the screen. This service should run while my application is running. But right now, i just want to test the service function and the Service doesn't seem to work well. In the main java file, i call startService(new Intent (this,testing.class)).
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Nov 2, 2010
An activity can use AsyncTask or Handler framework for background work. Both will continue to work even after user has moved away from the activity that started them and the onDestroy for the activity has been called. In other words, an activity is fully capable of doing background work even after its GUI has been shutdown.In this scenario, use of Service for background work seems like redundancy. What does Service bring to the table that an activity can not do?
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May 30, 2010
There are apparently at least three different techniques for changing screen brightness in the Android OS. Two of them no longer work post-cupcake and the third accepted technique evidently has a bug. I would like to increase screen brightness at the start of a one-view activity then turn the brightness back to the user setting at the end of the activity. No buttons, no second view or second activity. Just a maxed brightness at start and a return to original brightness setting at the end of the activity. The examples of the current technique using WindowManager.LayoutParams that I have located range from 2 lines of code
WindowManager.LayoutParams lp = getWindow().getAttributes();
lp.screenBrightness = 100 / 100.0f;
getWindow().setAttributes(lp);
To several pages of source code and numerous activities. Is there a simple example of maxing the screen brightness at start that someone can provide a link to?
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Nov 14, 2010
When I download a file from web in android, then I want to show a progress bar in notification area of status bar through service, but I am not able to do this. How can i do it? I am not able to pass the file length in service. I am giving URL in EditText, and I am clicking Download Button. After Click A class will be called on Click Listener, this class is having a function. In that function I am doing processing or functionality of downloading, Now I want to show the progress bar in Notification Area Through service, but I can not able to do this.
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Oct 22, 2010
I have an app which runs as a background service only. I'l like it to start up when its installed. As its just a background service it doesnt show up on the pane of installed apps. So there is no way for the user to manually start it. I've already regietered for the BOOT_COMPLETED intent which works but I dont want the user to have to power off the phone after the app has been installed, just so as they can start it.
I've looked at the following intents: ACTION_PACKAGE_ADDED/CHANGED/ REPLACED/RESTARTED/INSTALL, ACTION_SCREEN_ON/OFF, ACTION_USER_PRESENT, ACTION_TIME_TICK,
But it doesnt seem that you can register to listen for them from my manifest.
How I can start my background service without a power off/on?
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May 24, 2010
I am trying to call a push notification background service from BroadcastReceiver class, but my application crashes.When I call this service through an Activity it's working, but my goal is to call this service from a BroadcastReceiver.
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