Android :: High Precision Time Synchronization Between Handsets?
Apr 15, 2010
I am working on developing an application which requires high precision time synchronization between handsets. I'm looking for under 100 microseconds of skew between phones. I wondered if anyone had tried this before. In theory the GPS receivers could be used to pretty accurately synchronize timing, but I'm not sure if Android is setup to use them that way. My first cut plan is to port a PTP (precision time protocol aka IEEE-1588) client to Android.
View 3 Replies
Sep 12, 2010
I am new here and I came from Symbian and Linux, for all the phones I've used there are at least one application for screen capture and one for time clock synchronization, both are very useful and basic task we will do with a smartphone, but on the Android I found none that can work without a 'rooted' phone. I don't know how other phones do it, but I know the reason for a 'rooted' phone is to be able to access the framebuffer for screen capture for example and this may be risky, I suppose it is simply a sub-routine call to the BIOS will do without the need for a complete 'open access' system. I know there is a way to capture the screen without a rooted phone, but the phone must be connected to a PC and I feel this is dumb and inconvenient, I may be completely wrong about Android, please fill me in.
View 5 Replies
View Related
Jun 21, 2010
i have a problem with double values i need to store in an android homed sqlite database. since these double values represent gps values (lat & lng), i really NEED an absolute precision down to the 9th number after the comma.when reading lng from this table into some (java) double variable, i get a value like "0.999956837" - this renders the values pretty useless to me.is there a way to enforce the precision i need other than storing the values as "text" fields (what would make expensive casts neccessary) or storing them as integers (meaning i need to multiply/divide at each write/read-op)?
View 2 Replies
View Related
Feb 22, 2010
Before everybody redirects me to the standard "ways to extend your battery life" threads, I believe I've tried all the usual tricks, which is why I'm posting another thread.This is really starting to drive me nuts. Up until a few weeks ago, I was getting good battery life. A couple of days worth with normal usage, which I think is reasonable with all considered.But now, it lasts about half a day, which is obviously not much use when you can only charge it at night.I've been checking the "awake time" and sometimes it just keeps staying high. Sometimes it does, sometimes it doesn't. When the awake time is high, it is also warm to the touch, as if it is doing a lot of processing or something.
I've also been using "spare parts" to see what appears under "partial awake". I have never seen anything under this which accounts for the awake time. For example, the awake time might say "15 hrs", but "partial awake" in spare parts shows the biggest thing as being "Android system", but only taking "2 mins".I have (as far as I can tell) disabled the standard HTC messages app, and am now using Handcent SMS.I have turned off bluetooth and GPS, but leave wifi and mobile data on. I know switching these off saves power, but I've always had them on without as much drain as I do now.I have done a factory reset, and reinstalled all my usual apps, and left off any which I don't really need. All seemed well for a few days, but then the drain started again.
I have a feeling my battery drain is due to an update to an app, but as it's not consistent, I can't figure out which app or update it could be.As it is, with the battery lasting for less time than I am out in the day, it makes it a really rubbish phone, and just not fit for purpose.Is there any other way, other than using "spare parts", that I can tell what is using my power?
View 39 Replies
View Related
Aug 14, 2010
I am a new android user, and got my Droid 2 the morning they came out at the Verizon store. Now the guy that was helping me at the store told me that the battery life would be bad because of the high resolution screen but I didn't expect it to be this bad. I have been having really bad battery issues and I don't even use it constantly. I have it on around 20% brightness during the day, and I really only send text messages, and some web browsing but not a huge amount. My battery will be drained after 6 hours or so, and will need a charge again. When checking on battery manager it does say that most of my energy is going to my screen, but like I said I don't even have it close to the full brightness. I have been using an app killer program to try to maintain that also, but I did read somewhere that it can actually hurt your battery more, from closing and opening apps. Just wanted to hear some feedback from other users since we a couple days after launch. Everything else has been great with this phone, and I am REALLY enjoying the android OS after switching from a Blackberry.
View 49 Replies
View Related
May 17, 2010
I'm new to this forum. I have been searching around for Android 2.1 to place onto my Hero (GSM) - that IS the one that Telus uses, right? I have found several links which claim to have the download + instructions, but turn out to be dead. Can anyone comment on where to find this update? Is it stable? Are many people running it now? Any ideas when Telus will be releasing the full version?
View 6 Replies
View Related
Oct 20, 2010
Just a quick question about android updates when they come to a handset such as the X10 mini pro do they come automatically or is it just on the new handsets (bought in a shop or online)
View 1 Replies
View Related
Nov 24, 2010
We have been working on making a Android Application. The issue we are facing is the support across various Handsets, which actually are increasing by everyday. Our application deals with Android Calendar. Does anyone have idea about as to how we can span across the various handsets, is there a way where we can give types of handsets supported, or MARKET can handle it on its own?
View 1 Replies
View Related
Oct 20, 2009
I have a background service that plays a sound when an event has happened with the following code: 1. MediaPlayer mp = MediaPlayer.create(getBaseContext(), R.raw.theEnd); 2. mp.start(); But sometimes I see from my errorlogs that people are getting a nullpointer on line nr 2 here. My music file is a MP3 file and works great on my G1. The comments on my app says "Doesn't work on Hero after update" but I am unsure if this is specific to the Hero since I don't have that information in my errorlogs. The app has > 50000 downloads so this code works for most of the people out there, but do anyone know why it doesn't work for all of them?
View 4 Replies
View Related
Jun 12, 2010
My speaker buzzes all the time on my phone (not the speaker phone - it works fine). It's not a network buzz, it's a vibration buzz of the metal or speaker. The center camera is also off-center a little bit, which makes me think something up there is off-center, misglued or loose.
We have two other evos and neither of them buzz on the same call. I called the Sprint Nav Voice Address thing from all 3 phones since that would be the exact same voice and words every time. Only mine buzzes. The other two don't have the camera problem either.
View 3 Replies
View Related
Oct 1, 2010
I wanted to get some public opinion on the usefulness of a HDMI out port on a smartphone/handset. Let's say the smartphone is capable of recording and decoding 720p or 1080p video. Would a HDMI port be useful for you? How would you use it?
View 4 Replies
View Related
Apr 17, 2010
Can the forum members who have a handset from vodafone let me know if they are locked? Seems to be a mix of locked and unlocked handsets! I am on O2 looking to buy a Legend!
View 17 Replies
View Related
Jun 9, 2010
The camera on my Legend is faulty and I've finally got Vodafone to send me a replacement, but I'm worried that I'm going to lose all of my personalization etc and have to spend hours getting the new phone to the way I've got my current one. I'm not too bothered about background, widgets etc, but I was wondering if anyone could give me advice as to how to get as much info from the old handset to the new - particularly the contacts that I want who are linked through Google and Facebook, and the apps I've downloaded.I've tried syncing with HTC Sync but, to be honest, am finding it confusing; I can't see what I've synced so am not sure if there was any point in doing that. I've also backed my phone and Google contacts up on the SD card (I think!) but I'm not sure if this will work.I love the Legend, but I hate how much of a technoidiot it makes me feel! I'm supposed to be competent with these things!
View 4 Replies
View Related
Apr 12, 2010
Have been following Android news for some time and finally I decide that this platform is the on to love.Now the hardest part is deciding. Right now I am torn between HTC Legend, the upcoming Galaxy S, or Xperia X10.What I need:
1. A device that can have synchronization with a PC and/or internet storage to store contacts
2. Multimedia player. Preferrable able to play MP4, MKV, or AVI files (with Divx and Xvic odecs). Can be native software or third parties.
3. 3.5mm audio out jacks
4. Shipped with handsfree accesories.
5. Can play good games.
6. Can read and edit office documents
7. Agenda software with alerts and such.
8. Loud speaker.
9. Camera must be there. I don't care how crappy, it's just need to be there.
10. Flash that can be used as torchlight. Not a must, but it's not to have (my Siemens S75 has one, and have been very very usable and durable!)
View 4 Replies
View Related
Jun 10, 2010
At work, I have direct access to the Exchange server which I can synchronize with my HTC Android 2.1 without problems. At home I only have access to the Outlook Web Access webmail (which I can't access at work). Can I disable Exchange synchronization when I'm not connected to a certain WLAN? Also, as a bonus, would it be able for the Android to synchronize with the Outlook Web Access (like Evolution does in Ubuntu)?
View 1 Replies
View Related
May 20, 2010
I use this code to generate a spinner in my app:
code:.........
On my device (Motorola Milestone) and in the emulator this looks like the standard gray spinner widget.
On of my colleagues uses a Motorola Backflip and on his device the Spinner is black. Now its very hard to read the font in the spinner.
What do I have to do to use my own view for the spinner? I don't mind to have the gray spinner on all devices, but it should always look the same on all devices.
View 1 Replies
View Related
Jul 8, 2010
On my new Incredible, I will use files that I will need on both my phone and desktop PC. Some are Docs to Go files and one is a Keypass/KeypassDroid file. Is there a good reasonably simple app/software that will synchronize files so that the newer one is always on both phone and PC. Otherwise when I plug my Incredible to my PC I'll have to look and figure out if I last updated a file on my phone or PC and then copy it from one device to the other accordingly.
View 2 Replies
View Related
Aug 13, 2010
I still cannot believe there is no way to keep your bookmarks synchronized with your computer's chrome's ones. Is there any way to keep my dolphin HD bookmarks synchronized with the bookmarks I use in chrome? I always found it very helpful, since I use chrome (and chromium) in at least three different computers and I never have to worry about my bookmarks because when I change them in one of the browser's instance, the other ones just change, having all the same ones. How to do the same on an android system?
View 1 Replies
View Related
Nov 10, 2010
How to force data synchronization (calendar, contacts) from own program? The internet connectivity is not stable, so when a WiFi connection occurs, I want to force the sync. I've googled sth about synchronization manager, but there is not much info how to use it.
View 2 Replies
View Related
Sep 18, 2010
While I understand it is convenient to be able to sync data with Internet servers for access from anywhere, there are people who don't really need or do not want to share their data (contacts, calendar, settings, etc). Is there a way to disable or remove the option, but allow applications to work. i.e.
- Vonage mobile app will not work without a Google account
- the default calendar does not work without a Google account.
In summary. Most applications won't work without a Google account.
View 1 Replies
View Related
Aug 9, 2010
The revolving icon is stopping and simply don't complete the sync. Is it becasue the 1500 contacts I have?
View 3 Replies
View Related
Oct 7, 2010
I'm developing an android application.I want to sync the sqllite db to mySQL or SQLServer in android emulator i don't have any idea. Please provide some details and samples about synchronization in android application.
View 1 Replies
View Related
Mar 18, 2009
I find the "data synchronization" option is missing from the Settings on the last version android source code. Is this issue a bug? How to add the "data synchronization " option to Settings.
View 2 Replies
View Related
Sep 24, 2010
What is the method to define a sync period for some account? ContentResolver allows to set automatic sync flag only. But what is period? Have I missed something? Or have I to schedule sync requests myself using the AlarmManager?
View 5 Replies
View Related
Dec 30, 2009
What is the point of the synchronization here? Why not just use: mConnectedThread.write(out); ?
The code snippet is from the BluetoothChat sample for Android (found here)
http://developer.android.com/resources/samples/BluetoothChat/index.html
/**
* Write to the ConnectedThread in an unsynchronized manner
* @param out The bytes to write
* @see ConnectedThread#write(byte[])
*/ public void write(byte[] out) {
// Create temporary object ConnectedThread r;
// Synchronize a copy of the ConnectedThread synchronized (this) {
if (mState != STATE_CONNECTED) return; r = mConnectedThread;
} // Perform the write unsynchronized r.write(out);
}
View 3 Replies
View Related
Jun 16, 2010
How long does robotium wait for a new activity to show up? Is it possible to set the timeout manually for the Solo instance?
View 1 Replies
View Related
Jan 11, 2010
I'd like to start an activity with some initial data (passed through Extras) that sets up a display page, while I simultaneously make a network call to get the rest of the data. I thought I'd pass this new data to the activity as a message to the activity's handler. Now, my question is: how can I make sure that the activity has finished drawing the page and is ready to show the message data? The data might come from the cache, so I'm worried the message may land in the handler before the page is ready to display it. Is there a way to synchronize the page draw and the message handling? E.g., is it possible to suspend the looper till the page is ready? What's the preferred way of doing what I'm trying to do?
View 3 Replies
View Related
Jun 3, 2010
If i create a new contact and then I synchronize my contact with my Gmail account (which actually doesn't contains any contact) I supposed to have the new contact also on my Gmail account, but that's not the case. The synchronization DELETES my contact on the phone. What's the problem? Am I doing something wrong?
View 1 Replies
View Related
Jul 20, 2010
I have 3 accounts in my HTC Desire. Gmail (or should I call this Google?) - the automatically saved emails that GMAIL keeps when you write to a person.
Phone - which are the phone numbers saved in my phone and
Facebook - So when I go to people, I see that there's like 4 categories when I press MENU and VIEW: SIM(0) ; Google(296); Phone(731) and Facebook (460)
Ok, first weird thing is that even if I choose to View only my Phone contacts, on searches and when I write an SMS, the suggestions include their Gmail and Facebook entries too- which is quite confusing because the reason I hid them is I only want to send an SMS (yeah I know theres an option "Only contacts with phone number"). Is this really the case? Next weird thing is that: Since some of my Phone contacts are actually my Gmail and FB contacts as well, I linked them from the phone app (I clicked Link in the Menu and chose their respective contacts). Okay, so in the list, I see the name of my Phone contact and at the same time if I click on their names I see email and FB info as well (the FB profile pic shows! neat!).
However, I found out that when I try to click on Edit it still let me choose which contact I will edit, in this case: Google or Phone - I thought I linked you 2 already, so it follows that if I add an info, like, another number then it (the Phone app) should assign it to the name as a whole, right? Apparently, the Link command in Phone app only makes you "see" one name in the list- but in other processes still treats your contacts separately. Okay good- at least I know now. But When I try to Delete the contact in Phone it also deletes the Google contact but Facebook contact remains. Does it really treat them separately or as one- basically the problem is that users need to know how the Phone app actually does it's process of syncing. Or at least wouldn't it make sense, for the system to ASK you which account you would want to delete the same way it asked which one you wanted to edit (as my experience did above)? Something like "Do you wanna delete: Google, Phone or ALL?" (I know Facebook is a bit complicated so it's ok if Facebook contact editing and deletion is not totally synced for now).
View 2 Replies
View Related
May 4, 2013
Where can I delete a synchronization service Picasa ?
View 4 Replies
View Related
