Android :: Motorola Droid - Poor Accelerometer Performance
Dec 7, 2009
I just got my Motorola Droid and installed my little accelerometer app right away. All it does is registering a SensorEventListener if the user clicks the start button. It also takes the current time in millis. Every time onSensorChanged() is called, a counter gets bumped. After the user presses the stop button, the listener is unregistered and the time taken again. Using the values from above, I get a samplerate of 9 samples/sec which is WAY too low for what I want to do. The delay of the listener is set to SENSOR_DELAY_FASTEST. The Listener is registered within the main activity and is executed on the main thread of the process (I guess).
The G1 we used before was getting samplerates from around 35 samples/ second, which is way better, but still bad. Any suggestions on why the SensorEventListener performs poorly? The system is Android 2.0. App is compiled using API-Level 5.
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Dec 10, 2009
I see some people in the forums bragging about how great their batteries are and i am jealous I took mine of the charger at 7:00 this morning and at 3:00 my phone was already down to 40 percent. My question for the users that also seem to have poor battery life is, once your phone reaches 40% does a reboot give you more battery life? Every time my phone reaches 40% a reboot brings mine back up to 60%. This happens every time so it is not a coincidence or a onetime thing. I am curios if the reporting is off because it is almost 5:00 and i just did a reboot and now I have 60% left. I can live with 40% usage from 7:00 to 5:00 but I can't live with 60% usage from 7:00 to 3:00
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Mar 8, 2010
With Advanced Task Killer, which apps should I exclude to avoid poor app performance. For example, I realized after reading another thread today that I should exclude the Weather Channel widget. I could not figure out why the weather conditions did not update automatically. Excluded the widget and now it updates. Any other apps that are similar?
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Apr 17, 2010
I have a map in my android application that shows many markers (~20-50). But the app performs very poor when i try to scroll/zoom (in Google Android Maps i did a sample search for pizza and there were also some 20-50 results found and i didn't notice any particular performance problems when zooming/scrolling through the map).
onCreate() {
....
drawable = this.getResources().getDrawable(R.drawable.marker1);
itemizedOverlay = new MyItemizedOverlay(drawable,mapView);
...
callWebServiceToRetrieveData();
createMarkers();
}..............................
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Jan 30, 2010
So I'm doing some simple 2D stuff with OpenGL on Android and found the performance to be very, very poor. To give you an example, I made an app with a full screen LSurfaceView. I loaded a 512x1024 texture (containing a 480x854 image), set up an orthogonal 2D matrix, and set it to draw a 480x854 pixel quad with that texture, using vertex and texture arrays. Lighting, dither, blending, etc. is disabled.
I would expect this to run at 60fps without problem, but that simple operation already drags the frame drawing time to 19ms/frame. If I add some more small textured quads around the screen, the drawing time goes up to 22/24ms. If I enable blending it balloons to 28/30ms. This is testing on a Motorola Milestone, running 2.0.1. Is this normal? Am I doing something wrong or is it just a common problem in Android?
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Jul 13, 2010
Am I the only one, or is there a problem with the EVO and 4G speeds? In the Houston Area, I get anywhere from around 600 kb/s to 2600 kb/s speed. In most all cases, the 3G speed is faster than the 4G. At home, I average around 700 kb/s with 2-4 bars signal strength showing. Tech support is working on this with me and trying to determine if it's a phone problem, or tower problems. I had a chance today to journey around the area within about a 10 mile distance, thus insuring it changed towers. Service stinks on 4g, to say the least. Clearwire tells Sprint Tech Support that the tower for my home has low use, and good throughput. If the tower is good, and the software on the tower, then there may be a HTC EVO problem of some kind as this is the same on 3 different HTC EVO's purchased within 2 days of each other.
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Jun 22, 2010
I'm encountering very poor roaming performance. When my device switch from 3G to Wifi and vice versa, my application can't connect to the INTERNET for about 10 minutes. The given error is connection timeout: socket is not connected. I've already posted a similar problem here: http://groups.google.com/group/android-developers/browse_thread/threa... But I've noticed that it's not related to HttpUrlConnection. I've tried Apache Api to make my connections and the result is the same. Am I the only one facing this problem ? Could it be a platform bug?
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Apr 14, 2010
I am trying to display one png (drawable) on a map in about 300 points. I am retrieving the coordinates from a Sqlite table, dumping them in a cursor. When I try to display them by parsing through the cursor, it takes for ever for the images to be drawn, about .5 second per image. I find that to be suspiciously slow, so some insight on how I can increase performance would help. Here is the snippet of my code that does the rendering:
while (!mFlavorsCursor.isAfterLast())
{
Log.d("cursor",""+(i++));
point = new GeoPoint(
(int)(mFlavorsCursor.getFloat(mFlavorsCursor.getColumnIndex(DataBaseHelper.KEY_LATITUDE))*1000000),
(int)(mFlavorsCursor.getFloat(mFlavorsCursor.getColumnIndex(DataBaseHelper.KEY_LONGITUDE))*1000000));
overlayitem = new OverlayItem(point, "", "");
itemizedoverlay.addOverlay(overlayitem);
itemizedoverlay.doPopulate();
mFlavorsCursor.moveToNext();
}
mapOverlays.add(itemizedoverlay);
I tried to isolate all the steps and it looks like the slow one is this: itemizedoverlay.doPopulate(); This is a public method in my class that extends ItemizedOverlay that runs the private populate() method.
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Sep 12, 2009
I just got an HTC Magic from Rogers a few days ago and I'm noticing that it's running REALLY slow. The lag is unreal when I text and the battery dies very quickly. I have TWO widgets open (calendar and Google search) and the transition from sliding screens is sluggish. I rooted my phone a few days ago. Could this be the problem? Has anyone else experienced this? I heard that Sense UI is supposed to cause problems, but I haven't heard anything regarding Cupcake.
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May 22, 2010
I have no issues with GPS with my stock 1.5 ROM. The signal is picked up within a few seconds, even in my basement. Once I updated to Galaxo 1.6.3.2, the gps performance is extremely bad. Most of the time, my phone is only picking up 2 satellites, not enough for a lock. If I am lucky enough to get a lock, it doesn't last very long. I have managed to pick up 7 satellites once, but the reception on each was extremely poor, not enough for a fix. I tried flashing back to stock, which again, had very good GPS performance.
Does anyone have any ideas as to what underlying issue is causing the poor GPS performance? I understand that JC6 ROM (and Galaxo is built around it I believe) is from Russia. Does android have a cache of nearby satellites (similar to how QuickGPS works with windows mobile phones), and could it be that these satellite location are optimized for Russia? If not, is it an inherent problem with Android 1.6? As I use my gps quite often, hopefully someone can provide some insight, or I might just be driving an infinite loop of circles in the near future...
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Sep 6, 2012
I have other non China android phones that records video pretty impressively under bad or average lighting conditions. According to MT6573's specification, it has support for advanced 3D graphics; multi-format video capture and playback up to FWVGA 30fps; high-resolution camera support to 8MP.
An irritating thing is that the camera is TOTALLY USELESS under average or poor lighting conditions when recording. I have tried with different apps and they all gave me disappointing video recordings (almost total darkness clips).
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Apr 29, 2010
I have never had any problems at home with either my trusty unlocked N95 or Orange Sony Ericsson T610 (remember them?) so I had no qualms over ordering a nice shiny (dark brown) HTC Desire.
3G coverage is a bit iffy in the area as I'm right on the border of an excellent to good area so I never expected to have super fast data over the air, but I have wifi locally for that anyway.
So you can imagine my disappointment when the first call with the mobile from home cut off quite suddenly. A retry to reconnect failed with a no service message and no signal strength. I then spent the next hour playing around with the settings turning off wifi, data, setting the phone to 3G only (no chance) and then GSM only.
When the phone was working and making a call the audio was not clean and very digital. There was also a chance that mid call you would be cut off for no reason. When it wasn't playing ball at all the signal strength varied from three bars down to zero without moving the phone. Sometimes upon initiating the call it came back immediately with no signal and cutting the call off. Picking the phone up from sitting on the side in sleep mode you were usually presented with a no service message.
Orange were excellent and immediately replaced the phone, a courier arriving at 6:15pm upon reporting the problem at 8:30am that morning. Unfortunately the replacement was exactly the same.
Even worse, my place of work is in a designated poor reception area. There are a number of us on Orange as it is the only network that can at a pinch be picked up inside. My Desire...no signal at all. Moving to a window seat got me two bars but the phone refused to connect or hold a call. The only time it did calling 150 sounded like I was listening to a recording of a Darlek. A Nokia 5300 on Orange alongside was nice and clear, with very good tone by comparison.
By chance another member of staff also had recently signed up with Orange on a Desire (500mins, unlim texts, 500Mb, free phone, 20). In a back to back test both phones were the same. We even tried swapping SIMs. Luckily for him he has no problems with reception when at home so is quite happy with the Desire.
Contacting Orange again I did not get much further. Talking to technical support they were not much help and suggested that they did not warrant the phone to work inside the building and as I could make a continuous call outside then they did not class the phone at fault. This included my problems at home in what is termed an excellent coverage area! When I pointed out that two other phones I owned did work in the very same location I was told that mobile designs differ and positions of antennas vary considerably.
Frustrated I decided the only course of action was to use my right to cancel within 7 days as it was apparent that I was not going to be able to resolve the issue. Even last night it performed perfectly for a couple of calls and then failed miserably an hour later.
As a gadget I was smitten. Even as I handed the package over to the Post Master today I was inwardly screaming �GIVE IT BACK!� Unfortunately I need to be able to make calls on it when I want, not when it wants.
I have only seen a couple of other members note a similar problem on these forums but I have noticed a large number of Nexus problems that sound very similar. I would be interested to hear if anyone else has experienced this or do you all live in 5/5 coverage areas?
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Dec 18, 2009
What's up with Yahoo mail on the Moment? Its performance is absolutely dismal! I followed the steps in manual set up instructions I found in a thread here:
INCOMING
Imap server - imap.mail.yahoo.com
port - 143
security type - TLS (if available)
OUTGOING
SMTP Server- smtp.mobile.mail.yahoo.com
port - 25
security type - TLS (if available)
* check Require sign-in
I was able to establish a link with my Yahoo mail account, but is reliabilty and performance is poor at best (I had much better performance accessing Yahoo mail on my old Samsung Instinct). Most the time when I try to check my Inbox, I get a "Username or password incorrect" notice. (Believe me, they are not incorrect). If I press "Menu" and then the "Refresh" button, I then get a "Connection error" notice! If anyone has any fix or any info for resolving this issue, then please post it here. I can access my Yahoo e-mail okay through the browser, but this is really not the way I prefer to do this.
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Sep 17, 2010
Went through the Over Air update process yesterday, now WIFI drops all the time and the battery performance is so ppor the phone will not last a day!!! Can I put back the old SW or get this fixed some how? (edit a config fiel or somthing.......?)
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Jan 5, 2010
I have looked and looked and looked and I cant seem to find anything that helps me control the accelerometer more then either having it on or off.
Its a little picky, so I need help calibrating it as well as seeing if there is a way I can designate it to only work in certain programs. If there is no way to do that, is there a widget that will allow me to turn the accelerometer on/off that I can download (if so whats the app called in the marketplace)?
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Feb 20, 2010
Motorola CLIQ Over-the-Air Update
[Retail Partner Sales - T-Mobile Employees and Authorized Dealers]
February 19 Update
The over-the-air update for the Motorola CLIQ has been delayed to the week of February 22. An updated article will be available once a date has been determined.
On February 18, Motorola will begin sending over-the-air (OTA) software updates to Motorola CLIQ customers. The software update will improve device performance and resolve several known issues.
Improved Performance:
Improved battery life
Improved software performance and stability
Improved widget response
Decreased Force Close error messages
New Manage SIM Card application
Support of .WMA and .WAV media files
Removal of the imeem mobile application
Known Issues Resolved:
Accessories & Bluetooth
Error: 'Unable to pair' or 'Unable to connect to device'
Call functions
Can activate other functions while listening to visual voicemail
Call not ended by pressing the End key
Speakerphone turns on unexpectedly when answer incoming call
Plays ringtone or vibrates while on an active call
Unable to answer incoming call using �Slide to answer� feature
Accidentally opens Dialer or makes outbound while holding device
Device hardware (battery, keys, power, screen)
Battery indicator may not display accurate battery power
Call not eded by pressing the End key
Touch screen issues
Cannot answer incoming call using the Slide to answer feature
Incorrect keys registered using on-screen keyboard
Touch display appears to have �dead spots� that are unresponsive
Accidentally selects item when trying to flick through screens or menus
Messaging
Wrong message deleted
Phone may reset when turning Wi-Fi off in area with no Wi-Fi coverage
Customers can manually download the OTA on demand by going to Settings > About Phone > System Updates. Customers do not need to wait for a notification message to download.
Action Steps
Be aware of the fixes and enhancements included in the Motorola CLIQ update.
If customers are experiencing any Known Issue that will be resolved by the software update:
Do not file a handset exchange
Advise customers that the issue will be resolved by a software update on February 18.
Important Rebate Changes
[Retail Partner Sales - T-Mobile Employees and Authorized Dealers]
Customers eligible for rebates as part of new activations or upgrades must be advised they will receive their rebates in the form of a prepaid Visa card.
When customers take advantage of our new Early Upgrade or Early Upgrade Plus options, they are not eligible for upgrade rebate cards. These new upgrade options allow customers to take advantage of upgrades sooner and provide an instant discount, instead of having to wait for rebate cards.
To be eligible for an upgrade rebate card, customers must meet upgrade eligibility requirements.
Current, 1-year contracts: 11 or more active months since last discounted handset purchase.
Current, 2-year contracts: 22 or more active months since last discounted handset purchase.
Rebates on eligible purchases require contract extensions and a $9.99 or higher Data/Messaging feature.
Valid only on FlexPay plans with 1 or 2-year contracts.
Not valid for Even More Plus plans.
Active Months: The number of months in which the account has been in good standing and during which service has not been suspended.
Action Steps
Inform customers that Early Upgrade and Early Upgrade Plus are not eligible for upgrade rebate cards.
Advise customers eligible for rebates that they will receive their rebates in the form of a prepaid Visa card.
"With the purchase of your new handset, you can submit a rebate form to receive your rebate. The rebate will be in the form of a prepaid Visa card that can be used anywhere Visa is accepted. See the rebate form for additional details."
Trackball Replacement Program
[Retail Partner Sales - T-Mobile Employees and Authorized Dealers]
On February 24, T-Mobile will launch a Trackball Replacement program for BlackBerry Pearl 8100/8120 and BlackBerry Curve 8320 customers that are having trackball issues. This program will be available in T-Mobile retail stores only at this time.
Action Step
Refer customers to a T-Mobile retail store after February 24 for further assistance if they come in to your location looking to complete a trackball replacement.
First Connect for Dealers
[Retail Partner Sales]
First Connect for Dealers is an exciting class designed to help on-board and prepare Retail Partners to successfully sell T-Mobile products and services and provide differentiated customer experiences. This four hour class is conducted via the T-Mobile Live Virtual Classroom and covers the following:
Welcome to T-Mobile
Who is T-Mobile?
PCC
Differentiated Handsets
Differentiated Rate Plans
Service Excellence / Selling Skills
Tools and Resources
Customer On-Boarding
The attached flyer contains dates and times for these calls as well as registration details. ADRs should educate their locations about these calls and encourage them to attend.
To successfully be able to attend the training sessions, Retail Partners should have the following:
Computers with high speed Internet connections
The ability to play and hear video segments on the computer using speakers or headset
The use of a fully charged mobile phone to hear the audio portion of the conference call
Printer access to print Participant Workbook.
Action Steps
Share the attached flyer with your locations and encourage them to attend one of the scheduled calls.
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Jun 9, 2009
I am developing a game. In which the user controls movement using the accelerometer. Sounds effects can also be enabled. However when laying the phone flat down and playing the game without the accelerometer gives nice 0,0,0 values. However when play WITH SOUNDS on, i get a buch of weird values: while the phone is NOT moving.
This is really a big bug that makes life hard for Game Developers. I tried to take an avarge of the last 5 values from the sensor.. but this is not enough.. The harder the sounds plays: the higher the weird sensor values. When using the headphones: almost no weird values. Seems that sounds interferes with the accelerometer sensor.
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Mar 5, 2010
It seems no matter what I put my settings to, the home screen always has to change orientation when I rotate my phone sideways. This is quite an annoyance. I just want the home screen to be in portrait at all times (unless I open my keyboard). I'm currently on Smoked Glas 5.0.1.
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Sep 22, 2010
Anyone have an issue with there 3G and overall signal being very poor after the OTA update? Now not getting 3G or even 1x at times in my cube where before I had 3G all the time. Did a *228, reboot, battery pull and nothing seems to help.
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Jul 29, 2010
I have really poor reception with my DroidX and I am trying to figure out if it is the phone or verizon. I used to have an iphone on AT&T and while I had low bars I could at least make consistent phone calls. With the DroidX and verizon I have 0 bars and only have service when the wind blows my direction (or so it seems). Any advice on how I could boost my signal? I had verizon 4 years ago and it was great so I am not sure what the problem is.
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Jul 14, 2010
It seems every review praises the battery life of the X, however, it has been very poor for me so far. Anyone else with this problem?
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Oct 24, 2010
Has anyone else noticed much poorer battery life on the Droid X since updating to 2.2? I find my phone running low on juice much quicker now than it ever was with 2.1, even after rooting and installing SetCPU. I typically leave bluetooth, wifi, and GPS all turned off unless I am specifically using them, so I am not sure what is causing this battery drain.
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Jan 14, 2010
There is a mac application called liquid mac, it uses the tilt utility to simulate water flow, is there a droid app that uses the accelerometer for the same thing?
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Aug 23, 2010
I am trying to listen to pod casts on my DX while it is charging via USB. For the first 5 minutes or so it works great but then I start to get static. The static goes away as soon as I unplug the USB cable. Same thing happens in the car while listening to pod casts and plugged into my car charger.
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Nov 26, 2009
I'm sure many of the "poor battery life" reports were pre-mature, as people didn't realize their new rechargable has to condition itself, but today I ran into a new situation. This is my second Droid, since replacing original, due to wanting to confirm a faulty antenna, and trying to solve the 3G->1x issue.
Reception at my house is a crap shoot, where moving my phone 6 inches on my desk make speed tests go from 1.5Mb to 300k. So today I'm at mom's, 2 miles away, and we are both equidistant from the VZ store, which is also 2 miles away. However at her house, I pretty much get (0) bars. I left my house with about a 95% charge, pulling it from the plug before I left. I used it maybe 15min to try to resolve her router issue. After 6 days, my battery was good for a at least 18-24hrs of light browsing and mail checking. Well today, It was down to 50% after 3 hours, while flipping back and forth from 3G ->1x. I had (0) bars most of the time and noticed that the battery was warmer than usual. Signal strength was between -95dBM and -110dBm. Now "almost" 5 hours after pulling from the plug, I'm down to 20%. If my hypothesis is correct, I bet the charge will last the night now that the channels have stabilized.
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Jul 28, 2010
For the past couple weeks my phone has been acting very strange and has been getting pretty poor recpetion. I run BB.4 and P3Droid 1.0ghz and 3e baseband. I have tried .41 & .43 and did not get any better reception. Basically the issue is i get 3g for a while and all of a sudden i get 1x where i should have full 3g. If i shut my phone off and turn back on I then get 3g service back. I ultimately noticed it while in Chicago and i had terrible service when everyone else had great service. In Chi i went through all the basebands with no luck. Yesterday I restored back to rooted 2.1 by Pete and i still had a issue. So what i am looking for is there any settings i should look for that maybe off. I doubt its a common issue and i want to look at everything before calling to get it swapped out for a like new droid.
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Dec 17, 2009
I live in a rural area and have sporadic reception in my house, and work in a large building with dead spots. When I am in areas without reception and a friend texts me, I will not receive it. When I get reception again a few minutes later, my texts will not go through automatically.
From what I understand, the way SMS messages work they will send immediately, and if they do not go through they will piggyback on a different connection. So Verizon will not try resending them to you until it is good and ready, even if you have had reception since then. In my case today I got 3 texts 80 minutes late.I called Verizon tech support earlier with this problem and after describing to him everything, his only solution was to always leave my droid by a window and never have it near me................
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Jul 22, 2010
Rooted droid, using Froyo Kangerade V5.0.9.
I was sitting next to my friend who just got a droid and is unrooted. I was explaining how great everything was, but he was skeptical to root as most of us have been.
I wanted to make a phone call so I picked up my droid, but I went between 0 bars to half a bar and had a weak to no signal. I dialed the number, but the call wasn't going through. He, on the other hand had 3-4 bars consistently. I was pretty embarrassed when I had to ask him to use unrooted droid. I even tried *228 but my reception was still poor.
How can you explain this? More importantly how can I get "more bars" and a stronger signal.
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Oct 4, 2010
My download speeds have been roughly 512kps with full 3g reception (testing with the speed test app). I've tried *228 option 2 and the *22899 with no success. I have recently rooted but had the problem before that. That leads to my second question.I haven't called verizon yet, should I unroot before I do? If something similar has been posted im sorry, I could not find it. Is anyone else having this problem or know how to fix it?
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Nov 29, 2009
I have had my droid for 21 days now. The first week I was frustrated because I could not use my "backup assistant" which I have used for a long time to transfer my contacts. ( im sure they will come up with an "app" for that soon, and it works very differently than my old LG. Once I worked through the basics of using the phone I started to notice I have very poor reception at my home. (This is really bugging me because my husband has the FREE LG flip phone and has perfect service everywhere in the house) I buy the best and he gets the free phone and he talks anywhere but I have to go out on the back porch or stand by the back door with my head against the window in order to talk to somehone. Part of me really wants to return it for that reason alone, but I love the other features of the phone and don't know if I want to give them up. Has anyone else had issues with poor signal quality>
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