Android :: Poor Roaming Performance - Can't Connect To INTERNET
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 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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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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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 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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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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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 23, 2010
I need to develop an application that will check whether the phone is in roaming. If it's in roaming then the application should block internet for all applications except several from white list. In non-roaming mode it should allow all requests. There should be no way for user to kill or suspend the application or turn internet on.
I'm not familiar with android much so I really don't know whether it possible to implement without modification of OS. Is there any way to do this?
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Oct 17, 2010
I'm having a problem with my internet connection on my SGS. It used to lock to T-m*bile, I unlocked it lastweek then use L*bara instead cause got free internet service hehe. somehow, everytime i try to use internet service it says unable to connect to internet/ network unavailable. but I tried the simcard with another phone and it was working. some friends suggest me to re-unlock it. but i donno how to re-unlock it.
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May 6, 2010
Here's a question that comes from an unclear view of how things work : can a a phone be data roaming without being voice roaming? If so how can a begin data roaming event can be detected? This question came to me from the DDMS options , where one can have" data roaming " and "home voice".
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Jan 6, 2010
I'm trying to share my Internet from my laptop to my Milestone wireless. I've read in here that Android doesn't support ad-hoc, and I don't have a wireless router so that leaves me with blue tooth. So my big Q is: "Can you share your Internet from your computer to a Android-device via blue tooth?
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Jan 11, 2010
How to I connect my android emulator to the internet, e.g. to use the browser? I've found lots of advice on what do to when your connected through a proxy, but that's not the case here, my machine (win7) is directly connected to the router...
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Nov 2, 2010
I am unable to connect to Internet through emulator. Is it because of firewall? After removing firewall setting can I connect to Internet through emulator? Or is there is any other way?
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Jun 16, 2009
why cant connect to the internet, I have added the permission, Code.....................................
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Jul 13, 2009
How I can connect to internet from android emulator browser. From the discussion I found that I need to do some proxy settings for this . What are those settings ? Here the details of my development environment.
Eclipse. eclipse-SDK-3.4.2-win32 Android:android-sdk-windows-1.1_r1 OS:Windows vista 32 bit Internet connection: Broadband connection from some ISP
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Nov 2, 2010
My machine is using a WiFi connection for internet, and the LAN card is idle. it's not behind a proxy or firewall, but somehow, my emulator's browser isn't loading any page. meaning that the emulator can't connect to the internet.
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May 23, 2010
I'm looking into writing an Android game, tough I don't curerntly own an Android device. For those of you who own a device, how does the performance on the emulator relate to real device performance? I'm especially interested in graphics related tasks.This obviously depends on both the machine running the emulator, and the specific device in question, but I'm talking rough numbers here.This question is a duplicate, but since that post is heavily outdated, I figured it's irrelevant by now.
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Sep 22, 2010
I tried to connect to internet behind proxy in windows.But I cant. I tried with the "-http-proxy" in command line and in eclipse but both did not worked for me.
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Apr 22, 2010
Okay, so I am totally going to be new to the android phone. I am so excited! I have a question, and fear it may be a stupid one, but will ask anyway! Do I need a wireless router for my Droid Incredible to connect to Internet? Or will the phone connect to the Internet like my LG Dare already does (click on icon and it goes to Internet)? Or can I connect both ways? Do you know what I mean? I am supposing that that if I had a wireless router, that would allow me wifi connection. Is that faster than just using the phone on its own?
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Jul 23, 2010
I use to own a palm pre before I switched to HTC EVO. I think the evo is a great phone but the two things I missed so much about my palm pre is the camera and the sound qualities.
The EVO is said to use 8MP for its camera but honestly the camera quality is nothing compare to the palm pre. Simply put, the camera and the sound output on the evo sucks.
You can clearly notice the difference between the pictures I took using the pre and the evo. The pre gives far better picture quality and also better sound output. I always enjoy plays my sounds or using pandora on my pre, but with the evo the different is the case. The sound quality with the evo is horrible even when plugged to good speakers.
I bearly take picture with the evo because I am used to good picture quality with my pre.
I have had the evo for less than two weeks and i am seriously thinking of returning it because of these two issues.
I really want to know, is this poor picture and poor sound qualities a thing with the evo in general or is it just with the particular evo that I got.
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Jun 18, 2010
I'm new to my HTC Desire and Android in general, so please bear with me. At home, I have no Wi-Fi but my PC is connected to the web via ADSL. Is there a way to allow my HTC Desire to connect to the internet via USB using the connection my PC has to the internet (i.e. using it as a gateway)? I know that you can use the phone to allow the PC to connect to the web - but is the opposite possible as well?
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Nov 1, 2010
I'm waiting my wildfire in some days to arrive..Ive used it a lit bit because a friend of mine has it.Since i cant find a good answer online and the search in this forum didnt help i would like to ask you. How can i connect my wildfire to the internet using my pcs's connection?..They pc doesn't have wifi..so it has to be wired.
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Aug 31, 2010
I have been unable to use any data connection tonight, ive tried a reboot and turning apn off and on, but no internet, market, speedtest, facebook etc.
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