Android :: How Do I Start And Stop GPS Through Program To Save Power?
Mar 5, 2010
I want to use GPS service for better accuracy in my program, but want the location only once in every couple of hours. To get GPS location the GPS had to be started already manually through Settings->Location Security->Use GPS Satellites. But the problem is GPS continuously running whether I need the location or not and drains the battery quickly. My question is what is the equivalent API for the checkbox selection of,
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Jan 5, 2010
In my application i have several activities and i want to start background music whenever my *Application* is launched and stop music whenever *Application* is paused or stopped.
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Feb 12, 2010
i think a simple question but i did not find anything about doing it right.I want to start a mediaplayer from my app and send that player a file to play(stream).Would be nice to automatically choose the player associated with the mime type of the file i process to the player.The only way to start an app is this one. But i wonder if there is a android native way.
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May 13, 2009
I'm trying to do a program and I wanna know how do I put the program in background.But it's no put the program in background, the program will start in background and close when the user open again and press close. Somebody knows where I can find?I looked in the references and I didn't find.
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Mar 25, 2009
We are trying to launch C program application (for example, Helloworld) at start-up on ARM-based target board. We copied the application in /system/bin and modified the init.rc script to add the entry of the application in "on boot". But, still, the application does not launch at the start-up.
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Feb 9, 2010
I'm trying to make a dialog box to open when I start a program. Eclipse likes my code, I like my code =), but the emulator does not like my code. It says that something went totally worong and the application has to shut down. Bellow you can see my code. When I run it in debug mode everything seems to go as it should but when it gets to "return dialog; " eclipse debug windows says source not found.
CODE:.....................
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Jun 9, 2010
I'm getting an ActivityThread.performLaunchActivity(ActivityThread$ActivityRecord,Intent) error each time I boot up my program in the debugger. The program won't even start up! Any help would be greatly appreciated! I'm very new to this environment. Let me know if you need anymore information/code to help me out.
Here is my logcat:
CODE:......................
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Jun 4, 2010
I am trying in one of my application when i am going to start i mean power on my google android g1 my application automatically will start but i am unable to understand how can.
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Dec 12, 2009
I have a normal Java application, normally, we start an Android application from a Main Activity, now I must start it from my application.
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Nov 27, 2010
I'm looking for a task program that's more than just a start-up monitor or a one-time tasks killer. I'm after something which constantly monitors what programs are opening and automatically kills those I don't need (for instance Maps, MP3 Store, Outlook Tasks, Settings, Touchdown, all of which, however many times I close them, seem to keep reopening). So I need something intelligent that will run in the background and close apps as necessary.
Can anybody please recommend anything?
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May 21, 2013
Using Cron4Phone:
I want to shutdown the phone every night at a certain time via cron. Normally in Linux, you can use shutdown -h or Poweroff. Neither command works.
Their command in the program uses reboot -p which I understand to not be a good way to shutdown the phone as it is essentially the same as a battery pull.
I have busybox installed and have tried with full root permissions using busybox poweroff -f and nothing happens. Is there a simple command that I can push in there to safely shut down the phone?
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Oct 4, 2010
At first when I used my phone. I would click on Internet, Browse to a web page, and if left my phone alone for a few minutes it would go to power save mode, and I would have to unlock the screen to keep browsing on the same internet page I was on. Now when it powers down, and I go back to it, it always defaults to my home page, and I have to browse back to the page I was just one. I have been looking for a setting to undo this, as its driving me crazy, but I haven't been able to find a way to change this.
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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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May 6, 2010
I wonder if I could save a value (in my program its an index) so I could call it back when the program launches back again (even if the program destroyed) and the user could start from where finish.
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Aug 7, 2010
I've read several example programs and tutorials to try and solve my problem but they all seem to go the same way.I've used a couple Activities and xml documents to create a menu that loads when my game starts. When the user clicks the "Start The Game" button, it loads a new Activity that sets the view with my game thread and all of the game properties.I know this activity works because I've run it alone as its own project, but every way I've tried to start it after the Menu, I get a nullPointerException and it force closes.I read the SurfaceViewOverlay tutorial and attempted to use that implementation, but I'm using a SurfaceView, not a GLSurfaceView. I'm debating rewriting my entire program to use OpenGL but I figured I would see if anyone else knows what I'm doing wrong here.If you need the code snippets I can paste some here, but it's not really the specific code that's wrong, I think it's the way I'm using(abusing) the language.
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Mar 5, 2010
Absolutely love Handcet. But now I got both apps receiving texts. Can I shut down the stock one that came on my phone?
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Sep 21, 2010
1. press home key to stop my AP (activity change to stop , not destroy )
2. use "CountDownTimer" for sleep 3 secs , when timer finish use sendBroadcast() to call my BroadcastReceiver
3. finally , BroadcastReceiver use intent to start my AP (activity change to start).
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Oct 22, 2010
If I Force Stop an app (via Settings->Applications->Manage Applications->Any App->Force Stop) will the app ever start up automatically again or is the only way to start it up again to have the user start it. I have an app that starts a service. The service registers an alarm I've defined, with the Alarm Manager and this is recieved as expected. In my manifest I've defined a TimerIntentReceiver, to receive that alarm I've defined. If I Force Stop the app then is it possible to have the Alarm Manager "wake" my app up via the TimerIntentReceiver I've defined. I'm not seeing this happen. Once I Force Stop my app it never runs again unless I manually start it. Is there anything I can listen for, apart from BOOT_COMPLETE, to start up my app? Or does the user always have to start all apps.
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Apr 30, 2012
Last time i downloaded this program, but deleted it, i wanted to use it again.
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Aug 1, 2010
What are some power saving apps or tips you use with you Samsung Vibrant?
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Jun 3, 2010
I'm playing around with the MediaPlayer class to reproduce some sounds/music. I am playing raw resources (res/raw) and it looks kind of easy.
To play a raw resource, the MediaPlayer has to be initialized like this:
CODE:.................
Until here there is no problem. The sound is played, and everything works fine. My problem appears when I want to add more options to my application. Specifically when I add the "Stop" button/option.
Basically, what I want to do is...when I press "Stop", the music stops. And when I press "Start", the song/sound starts over. (pretty basic!)
To stop the media player, you only have to call stop(). But to play the sound again, the media player has to be reseted and prepared.
CODE:...............
The problem is that the method setDataSource() only accepts as params a file path, Content Provider URI, streaming media URL path, or File Descriptor.
So, since this method doesn't accept a resource identifier, I don't know how to set the data source in order to call prepare(). In addition, I don't understand why you can't use a Resouce identifier to set the data source, but you can use a resource identifier when initializing the MediaPlayer.
I guess that I'm missing something. I wonder if I am mixing concepts, and the method stop() doesn't have to be called in the "Stop" button.
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Jan 30, 2010
Is there an API, or a registry I can do in the manifest to make sure my service is being run at the device start up and being shut down before the device shuts off?
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Aug 8, 2010
How can I start or stop the built-in tethering in Android 2.2 from my application?
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Jun 22, 2009
Could we, and how start and stop a broadcast receiver receving the android. intent. action. BOOT_COMPLETED?As I want have control on a service awaken by the BOOT_COMPLETED.
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Feb 6, 2010
I've an App which performs a potentially large download in background thread. When the orientation changes or the keyboard is opened the App lifecycle system invokes the start/stop/pause/resume etc calls - is there any strategy available to resume the download rather than just set a flag so the new onCreate() knows it was interrupted and has to start it again?
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Jul 16, 2010
I have this game, which is almost done. It has 1 critical bug. When the app exits and restarts, the phone goes in to super slow mode and eventually restarts. I am at a loss as to how to debug it.
It seems like something is happening to make the program run super slowly. The ND time the program exits it takes a very long time to exit and when the phone returns to the main screen the program is almost totally unresponsive. The phone will eventually restart itself.
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Feb 7, 2014
I am absolutely new to android and web development. I would like to make an app which I can use to login to my account on a website (URL,,,) and to be able to start and stop the parking time. It should also show the time passed and notify every 30 minutes about it.
I am not looking for code (but of course, it would be nice to have some examples) at this moment but for some tutorial or a list of functions which I need to program to make such an app. If there is an existing application which I can modify for my needs, I can also try it.
I tried to search but the most of the content assumed for people with some knowledge of http post (I even do not know what it is) and others.
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Jun 4, 2010
I'm able to add the entire power control widget but I'd just like to add the individual buttons like it had preinstalled in the first left extended home screen (WiFi, 4G, GPS and bluetooth). I'm sure I'm missing something terribly simple here but I've looked everything.
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May 12, 2010
I need to know that I have received a text when the phone is on power save mode.
At the moment I have to unlock it and check, just a light flashing at the side telling me or some sort of noise or anything would help.
Is there anything I can do for this?
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Feb 14, 2010
When I get a text message, I get a notification from Handcent and the stock message program. Is there a way to stop the stock program from notifying me?
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