Android :: Gl TexImage2 D Is Too Slow

Oct 31, 2010

We use Opengl 2.0 to develop a video programmer on android with nexus one. We find that the fiction glTexImage2D is too slow,but we write a shader programmer accord to the sample GL2JNILib. I guess the GPU is not working, why it happened? how to fix it? Code...

Android :: Gl TexImage2 D is too slow


Motorola Droid X :: Phone Slow Very Slow

Aug 26, 2010

I got my x on launch day no root no 2.2 all stock .well i've been noticing its getting slower don't have much installed only about 10 apps. The browser will start and then stop when u tell it to go somewere then after a dew sec it takes back off. Text message when u bring it up it takes about 10 sec to load then another lag to start typing and there wont be any old messages in box and when they do finally come up u can't scroll threw the old ones.

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Android :: Slow Eclipse On OS X

Jun 12, 2010

I am running Eclipse Galileo on an Intel Mac and after using it for a bit, it becomes very slow. By slow I mean switching between tabs and scrolling through source becomes nearly unusable. I have to close Eclipse and re-open it, and that usually only solves the problem for a short time.

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Android :: New SDK Causes Slow Debugging On N1

Sep 20, 2010

I've got a Nexus One running a debug version of my application, and I just today downloaded and installed the 0.9.8 version of the SDK tools, and I swear that Debugging latency has increased incredibly. I never bothered to measure the overhead before the upgrade because I always found the phone's debugging overhead to be small enough to not affect matter. Well, now I have AI code which runs at ~10 MS standalone taking 300-400MS through debugging. A 40X performance loss is not something to cough at. Is it just me not seeing the performance loss previously, or has something broken?

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Android :: Animation Is Slow

Oct 22, 2009

I'm trying to perform a simple animation, but it seems quite choppy. This is it: Animation anim = new Translate Animation(0,0,-50,0); anim.set Duration(500); anim.setInterpolator(new LinearInterpolator()); myLinearLayout.set Animation(anim);the animation does what it's supposed to do, just very choppy - is there any reason why it's so slow? The linear layout I'm applying it to is pretty simple, just has a few children.

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Android :: My First Game Is Getting Slow

Aug 11, 2009

I've followed the excellent article on game development here: http://www.rbgrn.net/content/54-getting-started-android-game-development, and started my game based on the Lunar Lander example. The Lander example re-draws the background and everything else on each "tick". I basically followed its example and I'm using my game's background image to essentially "clear" the canvas so that I can re-draw everything from a clean slate. This, as I've found, has a negative impact on performance as my game is beginning to slow down. My question is, what's the best way to optimize this? If I want to "clear" only certain parts of my canvas, how do I do that? I've read the documentation for android.graphics.Canvas, but am getting confused by a lot of jargon I don't understand such as "clip" and "matrix".

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Android :: AES Decryption Is Slow

Dec 29, 2009

I am trying to do AES decryption like this -Cipher cipher = Cipher.get Instance("AES/ECB/PKCS5Padding"); cipher.init(Cipher.DECRYPT_MODE, aesKey); cipher.update(encryBytes, 0, encrByteCount); and it is taking me about 2.5+ seconds to run just the cipher.update (i.e. I excluded the init and get Instance() calls) for 65KB of data -- which seems way too long.What this translates to (roughly) 60 seconds for a 1.5MB file. Which is uber slow.I *am* actually seeing 60 or so seconds when I try to decrypt that big of a file (looping through and feeding buffers).Does anybody know why AES decryption is so slow on Android? A co- worker is seeing times around 10 seconds for the same file on a RIM device.

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Android :: Slow Browsing With 3G

May 27, 2010

I have a rooted mytouch 3G and I've been using the barnacle tether app for the last few months for internet on my laptop. Just recently I've been playing online poker on my laptop. It worked fine for about a day or so, then things started to get extremely slow, barely being able to load google (taking about a few minutes to load a basic html page). I don't know if it has something to do with using my phone for a connection with the poker clients or if it's just coincidence with the timing of it, I called T-Mobile and they said there are no problems at all with the coverage in my area and to do a Power cycle which didn't seem to help. Does anyone have ANY idea what could be wrong?

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Android :: GlTexImage2D Is Too Slow

Nov 8, 2010

when draw YUV frame use opengl 2.0 and shader on nexus one,but the function glTexImage2D is too slow ,cost 40-60 ms who can fix it ? the key codes...

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Android : G1 Device Is Slow

Feb 10, 2009

applications on my G1 device are very slow when GPS is ON. is there any solution for this. all the applications responds with force close messsage.

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Android : Slow GPS Updates

Aug 9, 2009

I am developing a small app that works as a speedometer with a build in histogram.

But it is quite unresponsive, I test it by driving in my car, and when i go from 80 to 0 it takes about 4-6 seconds before my needle is updated.

For simple outlier removal, i use a 1x3 median filter on my estimated speed the speed. Wich obviously will give me a delay one 1 sample.

******* Here's the real question :) ****** I thought i might get updates every second, and thus a delay of 2 seconds, wich wouldn't be to bad. but is GPS really that slow? or am i doing something completely wrong? *******

I have registrered a listener like so:

CODE:..............

To have a steady update of my speedometer, I use a timerTask to poll the listener for the last estimated result, and updates my speedometer view.

CODE:............

And the run method of my task:

CODE:.....................

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Android : How To Slow Down SensorEventListener

Aug 21, 2009

I am currently using sensors and I would like to know if I can slow down the sampling rate. Indeed, I register my listener with the constant "SensorManager.SENSOR_DELAY_UI" (is it the slowest one of the four constants mentionned in the documentation?) but the rate is still quite high. I would like to be able to define the time before giving the new value (For example, I would like to wait two seconds before update).

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Android : XML Parsing Is Slow

Dec 5, 2009

I like to parse a XML file in android. It is taking too much time to parse a xml in android. what is the reason?.. It is taking more than 5 minutes also to parse a file. The same thing will continue in phone?...

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Android : StopService Slow To Act

Jul 16, 2009

I am starting a service from a broadcast receiver, using android:process=":remote", which from what I understand means unbind. That BR dies. The service is runs some TTS (text2speach) in a cycle until a second broadcast receiver comes into action and executes stopService.

I am using action names to start and stop the service.

The problem I am having is that after the stopService is executed the service is still alive for a good 20 seconds when finally dies from timeout. The other think I notice is that onDestroy() is never called.

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Android : AESObfuscator Is Very Slow

Oct 28, 2010

I am trying to implement the Market License Checker, and am following the sample application. I am using the AESObfuscator class, but find that it takes a VERY long time (23 seconds on the emulator) to instantiate, which greatly delays the startup of my application. Is this normal, or am I doing something wrong? If it is normal, can I put the license check in a separate thread, or does it need to run in the main thread?

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Android : Why Is PDAnet Slow

Oct 27, 2009

I'm using PDAnet on my HTC magic and speedtest on my computer is reading 1.7 mbps. I am also sharing the connection with my xbox360 to get on live. But Live is laggy. What am I doing wrong.

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General :: FFT On Android So Slow

Feb 13, 2012

I want to code an app that reads sound from the mic and displays its freqs.

So I wrote a soundrader (thread) an a fft class and .. the fft class is to slow (I just tested it in the emu). Should i write the fft in c or what else can i do ?

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Android :: TabHost Slow On Orientation Changes

Nov 24, 2009

I currently have a TabHost with 3 tabs.The content of each tab is an activity. The first and second tab make HTTP connections.The first tab still uses the UI thread (which i'm changing) so it would explain the slow orientation change since it's creating a fresh activity and making all those connections again. What I don't understand is why if I am on say Tab 3 which makes no connections at all does changing the orientation take such a long time (up to 5 seconds).In playing around with the TabWidget I noticed something that may be related.

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Android :: Progressdialog Slow To Show

Oct 12, 2009

I'm starting a ProgressDialog using:

ProgressDialog.show(Example.this, " " , " Loading. Please wait ... ", true,true);

Then running a block of code to download and parse XML.

The problem I'm having is that this is all running under a onClick button method, and that the xml is downloaded and parsed before the dialog is shown.

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Android :: Slow Motion Video App

Sep 30, 2010

I am looking for an app for my Incredible that records video at a higher frame rate, then will play back at regular speed so that the video plays in slo-mo. My old LG Dare had this, and i used it quite often. ANyone know of any app out there that will do this? I have searched the forum, and the market, and cannot find what i am after.

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Android :: Slow Scrolling - Sometimes No Response

Mar 11, 2009

Sometimes when I try to scroll using a scrollview (wrapped around a textview), there will be no response. I've noticed this in both my apps and the only common thing between them is the textview in both apps use Spanned (SpanableStringBuilder to be exact) text. This happens even when there is no activity on the window and no any pops up either.

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Android :: ListView Scrolling Very Slow

Oct 12, 2010

I am having a customized list view in my application, which is showing an image and text.

The Image I am getting from URL, using the code below:

CODE:..............

All is working perfect, except the list view scrolling, its very slow. If I disable the images, the scroll speed smooth-ens , but with the image enabled, it lags alot.

Is there any possible way I can reduce or remove this lagging?

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Android :: Keep Pressing Screen Slow Down App Very Much / Need To Fix

Oct 18, 2009

I found that if I keep pressing the touch screen, the app will slow down very much. Both happened in my code and the sample app.

The same issue happened to me on Windows Mobile, but not happened on Symbian. Anybody have some clew to fix it?

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Android :: G1 Phone Gets Slow After Switching It On For A While

Dec 13, 2008

My G1 phone slows down after a while from switching it on, and if I switched off and re-switched it on it will get back to its normal state. So any clue why is that happening? I downloaded many apps from the market, is that the reason? and is there any application that shows the running applications in the background and their CPU and memory usage? And when I open the messaging and scroll through the messages it is way too slow.

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Android :: XML Parsing Slow - Cache

Aug 16, 2010

I have seen that xml parsing is very slow. Using sax would be better, but benchmark show that sax work only 30% faster as dom. Is right? Is faster if I construct a "DOM" using sax?

To reduce time i like to cache xml file. Caching it as xml is not a good idea because the parsing time is there again the secondo time.

Should I use sqllite? Is faster? Is an idea to use an ObjectOutputStream? Can I put in asset a file maked by ObjectOutputStream or the serialized objects can be different in different mobile hardware?

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Android :: 3g Has Been Running Extremely Slow

Oct 11, 2010

My mytouch 3g has been running extremely slow. it would take about a year to open messaging, browsers took longer, and so on. i bought setcpu (overclocking app) and wow......it now takes nothing for me to do anything on my phone. its faster than it was when i first opened it. cant believe i never heard of this before......if you dont have it, get it....(root users)

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Android : Application Become Too Slow When I Use Sqlite

Nov 2, 2010

I am developing one application.In this i am using the sqlite database.In this first time I am taking the data from assets and then insert this data into database.and secondtime onwards i am taking data from Database.But first time also my application is very slow.Finally my application is too slow.My question is ,is generally application become slow when we use the sqlite in our app?and what we can do for this type of issue.Please give me some suggestions.Its very urgent.

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Android : Slow - G1 A Call To EglSwapBuffers Will Always Take At Least 9ms

May 24, 2009

I have been trying to optimize on OpenGL render, and I've come upon an irreducible problem. It seems that on the G1 a call to eglSwapBuffers will always take at least 9ms. I understand that the buffer swapping is restricted to a maximum of 60Hz (well, the refresh rate of the screen, which in this case happens to be 60Hz). But I'm never seeing it take less than 9ms, even when I'm doing more than 8ms of work.

Has anyone seen this? I've been reading through the code and can't find anywhere that there is explicit mention of a fixed delay. Not that I was really expecting to find something like that. What I do find is that the swap code eventually calls unlockAndPost and then lock on the underlying surface. The unlockAndPost causes the underlying driver to start the swap and the lock waits for that to finish. The driver is told to do the swap via an IOCTL call on /dev/ graphics/fb0 that actually does a BLT.

I wonder if the IOCTL round trip to the kernel and the thread switching time is adding up to make eglSwapBuffers so slow? Or if the requested BLT takes this long? If the BLT were actually taking something close to this long that would explain things because the lock call waits until the BLT is done (at least that's what it looks like to me).

As partial confirmation of this, when I up the surface size by going to an RGBA_8888 surface the eglSwapBuffers call goes from taking 9ms to taking 15ms. Which pretty much means you can never get 60 frames per second using an RGBA_8888 surface.

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Android :: IPhone / Unhappy With Reception And 3G Slow

Jul 27, 2010

I came across this in the comments section from an article about Most users happy with at&t service from cnet (article is from cnn). Article is irrelevant but the person wrote. "I'm an unhappy iPhone owner/user! I had a iPhone 3G and switched over to the iPhone 4; still unhappy with phone reception and 3G is very, very slow. I use WiFi mostly. Too bad other "smart phones" aren't as easy to use for non-computer people." Is this what some people think about android? I first owned the hero and now the EVO and using setting it up and using it was nothing. Is the Iphone that simple ? Now both my phones have the sense ui ,but is this the mind set for some people who want to switch but they think its "not easy for non-computer people"?

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Android :: Switching To Landscape Orientation Is Slow

Sep 4, 2010

This is getting called in on Create(), how can I speed up orientation switching? private void setupChartView(int position){
Quote my Quote = quotes Adapter.get Item(position);
this.symbol = my Quote.get Symbol();
String url = "http://chart.finance.yahoo.com/z?s=" + symbol + "&t=1d&q=l&l=on&z=l&p=s&a=v&p=s&Lang=en-US®ion=US";
if(chartImageView != null)
imageDownloader.download(url, chartImageView);
if(chartImageViewLandscape != null)
imageDownloader.download(url, chartImageViewLandscape);}

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