Android :: Any Way To Intercept Power Button Presses When Running Service?
Feb 11, 2010
I am creating an Android service which constantly runs in the background. I'd like to be able to intercept calls to the power button to:
a) prevent the screen coming on
b) handle the power button press in a different manner.This is to enable the user to have a very simple interface to my application and prevent wasting battery powering up the screen when it is not required.
I will probably need an alternative mechanism to actually bring the screen back up (such as an extended key press or similar), but this only becomes relevant if what I'm after is possible.
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Jul 28, 2011
Can a program sit in the background and intercept keypresses, convert the keypresses from one letter to another, and send it to whatever program you are working in as though the new letter is what you typed?As qwerty is the only layout choice for hardware keyboards and I don't have root on my tablet, I want to use this as a work around.
If I were to press "s" on my hardware usb keyboard. The program would intercept the "s" before it got to whatever textbox and convert it into the dvorak key equivalent of "o". That o would then be passed to the program as a normal keypress.
if I were to press asdfg on the qwerty aoeui would be sent instead.I thought it best to ask before I waste hours trying to learn how to write the program.
List of changes I would make in a pseudocode case statement format.
Select Case Key
#Comment - Number Row Key changes
- = change to [
= = change to ]
#Comment - Top Row Key changes
q = change to '
w = change to ,
[code]...
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Nov 22, 2012
a hardware bug on my Samsung Galaxy S Plus.I'm writing this in the general forums since it doesnt seem to be a bug specific to the phone (no reports anywhere online) and the question itself is therefore not device specific.So i have a hardware home button on the phone which sometimes registers two clicks instead of one.On a 1sec press this would mean the following events:
- button down event
1sec pause
- button up event
- button down event
- button up event
So since this doesn't occur regularly and i want to somehow log presses of the home button and i dont know any way to do that in android.It doesn't need to run in the background but could be for example be opened specifically to test the button.
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Mar 27, 2010
I am relatively new to this still, and I have been developing a small app that would benefit greatly from a user being able to press 2 buttons at one time. What is the best method for achieving this? I dont think that an OnClickListener works like that, and I have seen examples for doing this with an OnTouch event. However, I do not know how to set up button presses with an OnTouch event.
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Jul 20, 2010
I got a ListView item that contains a button inside. Currently the long press of a ListView item does not get processed. I thought that by setting the Button.setLongClickable(false) would allow the long press to be passed along to the ListView item and it's not happening.
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Oct 6, 2010
First of all, maybe i went about this the wrong way in the first place. Situation is, i have a listview that when an item is clicked, it creates an intent and calls startActivityForResult() to another activity, to be able to edit the entries in the row. and that other activity after editing the required values, returns back to the calling activity, when the user clicks on a save button. The activity then uses the row Id to update the item.My problem now is that, if the user presses the BACK button instead, the application crashes. i have been looking around and see solutions like using Shared Preferences or onSavedInstanceState(), but i don't know where exactly i should be putting the code?
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Sep 27, 2009
When I currently have my activity on the font of the screen, how can I make Android to 'destory' my activity when user clicks 'back' button? (i.e. onDestory of my Activity gets called)?
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Jul 28, 2010
Is there anyway to intercept that a hard key was pressed by using a service in order to launch an activity?
In other words : Is it possible to handle the KeyEvents in the Service?
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Nov 7, 2010
Does anyone know how to intercept the genius button on the new MyTouch 4g by HTC? Is it somehow hard wired to the kernel?
I looked at logCat, and I see that if uses the following intent:
INFO/ActivityManager(1309): Starting activity: Intent { flg=0x10000000 cmp=com.nuance.android.vsuite.vsuiteapp/.VSuiteStartSession }
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Oct 15, 2010
I have the activity with several input fields. When activity started soft keyboard is showed. When back button pressed soft keyboard closes and to close activity need to press back button one more time.
So the question: is it possible intercept back button to close soft keyboard and finish activity in one press of back button without creating custom InputMethodService?
I know how intercept back button in other cases - onKeyDown() or onBackPressed() but in this case it's not works: only second press of back button is intercepted.
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Jul 30, 2009
In an activity, how do detect the fact that the user pressed the home button?
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Oct 18, 2010
I'm learning about the android. Now, I want to display a button that can turn off the screen. That is when the user click the button the screen off as the user click the power button. How can I do this?
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Jul 26, 2012
My phone was working just fine and randomly the lock button stopped working and the home button brings up the power screen!
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Jun 10, 2010
does anyone know if its possible or what app would be used to have the optical button work the same as the power button on the top of the phone. so if you push the button it would light the display up. or maybe its not even possible.
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Apr 21, 2010
I tried searching for this but couldn't find a thread that discussed it. My power button appears as though its been jammed. I dropped my phone on its corner where the power button is but I don't think thats what the problem is. Anyhow, recently my power button responds but I have to really press it hard and it as though the button is jammed cause it doesn't depress as far.
My question is that is there a way to designate the camera button to become the power button? I know on some phones you can make different buttons do different things and I was curious if this was possible on the Droid.
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Jun 15, 2010
Is there a way to set a different button to turn the screen on to unlock the phone?An app or anywhere in settings?I hate touching the top button to turn on screen.What would be ideal is hitting a pattern on the bottom 4 buttons and then it unlock even without the swipe.Say my code is like hitting search twice then menu once then home once and the phone comes on.No swipe necessary.
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Mar 3, 2010
When I connet device to DDMS sdk tool, I can see the running process.But I don't think that those process are tatal processes.For example, I have 10 android applications, A, B, C, D, E, F, G, H, I and J.If I want to run only A, B, C application on the power-on, how can I do that.?Where can I make a list for processes running in the poweron time.?
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Aug 17, 2010
How do you simulate the power button on the emulator.I am using a Mac.
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Sep 13, 2010
On an Android device, where the only buttons are the volume buttons and a power button, I want to make the app react to presses on the power button (long and short).How is this done?
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Apr 22, 2010
In my application, if you press the power button on the phone, i am seeing: onPause onDestroy onCreate onResume onPause getting called in that order; I can't figure out why the app is getting created again and then re-paused. Obviously I am doing something incorrect, but I am not sure what. Anybody seen anything like this before?
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Oct 9, 2010
I have a pattern unlock on my Samsung Galaxy S 19000. If I want to lock my screen manually I simply press the power button briefly which works fine. I now use a skin on my phone which doesn't allow for easy access to this power button so I'm wondering if there's an app that I can use to lock my phone screen without having to press the power button. I have looked at "lock 2.0", however, it seems to be more for actually unlocking the screen.
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Oct 29, 2009
Does anyone know how to handle Android HTC device Red (power) button programatically to stop my operation. I want to stop running some of my operation when user presses REd button when user is in my screen. I know for other buttons like Back button i could use "keyCode == KeyEvent.KEYCODE_BACK" event. But what is for Power(End) Red button? I'm not getting any keycode events for Red button when i'm in my application.
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Jan 13, 2014
my android phone's power button stopped working a few weeks ago. It wasn't a big problem, but a few days ago, the battery died. Now it is turned off and I can't turn it on. When I put it in charge, it just shows the charging screen. The phone is a Winmax W8000 (Winmax is Bangladeshi company. I'm from Bangladesh). It runs on Jellybean (4.1). It wasn't rooted. I tried to get into Download mode, but pressing the volume buttons and plugging in the charger doesn't work.
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Oct 20, 2013
Is there any app or menu from android 4.3 to reboot the phone without using power button. The phone does not rooted.
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Nov 21, 2013
I'm wondering about apps that are a little more than battery power monitors. I'd like something that will show me the apps that are running and taking up the most memory and causing the biggest power drains on my phone.
Something that would log this so I could look it over during the week and get an overall view and make decisions on what to keep and what to erase.
I'm thinking something that would show me what apps I used, how long they were running, how much memory they took up, how much battery power was used, etc.
Is there such an app out there? I'm wanting to look at the differences between the free apps and paid apps to see if it makes a difference also.
I'm running a Sprint GN2 currently 4.1.2. I haven't gotten the update yet.
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Sep 30, 2010
Does this mod work for us? and which version the HD version or the regular one?
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Jun 21, 2010
Anybody else power button slowly sinking? I've had the phone for 2.5 weeks and the power button feel is a lot worse then before. It's slowly falling in and flushing with the opening.Probably will take it back and swap for a new one.
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Apr 26, 2012
New to android programming and I would like to create an app that runs when the power button is pressed (the phone will already be 'on' as such but the screen 'off')
So - one press of the power button to 'activate/show' the screen will make the app run (without requireing the user to unlock the screen).
Is this possible. How do I capture the 'power button press' event and then direct it to run *app xxx*.
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Sep 26, 2010
How do some android app make their service restart even if killed from task manager? A good example is Lookout security app. What I guess is that it has registered for all common events that are announced like app installed unistalled, interenet available ,etc.Is this a way to keep your service running ?Another solution I found was to make 2 services monitoring each other, so if one gets killed restart another.Which one would be a proper approach? Is there any way in android to start booting automatically(if device is switched off) once connected to power source? I have never heard this on mobile platform.This is possible for PC through bios feature. Can it be done on android?
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Aug 21, 2010
I have just started using services in Android and I have a made a simple service that is polling a server every 20 seconds. Now how can I get this data from my main activity (when it is active)? Alternatively the service could send it back do my main activity (but only if its active). I don't want to wake up my activity. I have read SDK examples of "Binding" but I can't find an example how to actually get something from the service. Just how to start and stop the Binding. From the example. If I have the "mBoundService" object in my activity how do I get my data from the service method called eg. "polling Data()"?
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