Android :: Dalvik Memory Allocation / How To Change Default Limits?

Jun 20, 2010

I am currently considering to develop an application for processing of images captured by the camera of mobile phones using the Android OS. Before I make the decision to go forth, I have done some research and found out there are some complaints regarding the limits of the memory allocated by the Dalvik VM, which seem to be limiting to applications that require manipulation and processing of images. Which limits should i have in mind if i would have to process for example 3 photos taken with the camera, in my process, applying filters, transforms and other types of mathematical operations?I would like to know if it is possible to change the default value of
memory allocated by the Dalvik VM for each application (this default is of 16 MB), in any way, using the Android 1.6 OS. Has anybody looked into this that can help me out please? I have also read in the Android 2.1 compatibility definition document
(available here: http://static.googleusercontent.com/external_content/untrusted_dlcp/source.android.com/pt-PT//compatibility/android-2.1-cdd.pdf )that it is possible to change the allocation of memory by the Dalvik VM from 16 MB to 24 MB or even a bigger amount if it is necessary, but t is not mentioned anywhere how this can be done. If someone has looked into those issues before.



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Android :: How Much Is Too Much Memory Allocation In NDK?

Jun 14, 2010

The NDK download page notes that, "Typical good candidates for the NDK are self-contained, CPU-intensive operations that don't allocate much memory, such as signal processing, physics simulation, and so on."I came from a C background and was excited to try to use the NDK to operate most of my OpenGL ES functions and any native functions related to physics, animation of vertices, etc... I'm finding that I'm relying quite a bit on Native code and wondering if I may be making some mistakes. I've had no trouble with testing at this point, but I'm curious if I may run into problems in the future.

For example, I have game struct defined (somewhat like is seen in the San-Angeles example). I'm loading vertex information for objects dynamically (just what is needed for an active game area) so there's quite a bit of memory allocation happening for vertices, normals, texture coordinates, indices and texture graphic data... just to name the essentials. I'm quite careful about freeing what is allocated between game areas.Would I be safer setting some caps on array sizes or should I charge bravely forward as I'm going now?

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Android :: What Is Maximum Memory Limits Per Application?

Aug 28, 2010

What is the maximum memory limits per application for Android 2.2?

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Motorola Droid X :: Change Orientation Limits / Bottom Keys To Left

Jul 16, 2010

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Android :: Dalvik Message - Default Buffer Size Used In BufferedInputStream Constructor

Aug 17, 2010

When I used BufferedInputStream and I specify a buffer size, Dalvik gives me this warning - Default buffer size used in BufferedInputStream constructor. It would be better to be explicit if an 8k buffer is required.
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Android :: Multicast Permission Of Dalvik And How To Attach To Dalvik Env

Sep 16, 2009

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2. In this lib i will make some callback of function in dalvik class. according to tranditional method which can run under JDK1.5 & 1.6 as follow: (I make it under source code env not NDK)

In some initialization method save jvm pointer

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

it seems AttachCurrentThread not failed but env not correct.

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Android :: Out Of Memory / Orientation Change / Memory Analyzer Question

Jan 21, 2010

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Android :: Dynamically Generating Dalvik Bytecode Into A Running Dalvik/Android Application

Apr 9, 2010

This question has been asked(and answered) many times about dynamically generating and loading java bytecodes at runtime into a running Dalvik VM, but is there any way to load dex files/bytecodes into an app at runtime?

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Android :: Where Is DDMS Allocation Tracker?

Nov 13, 2009

I can't find the DDms allocation tracker in the DDMS perspective in eclipse. I search the view doing Window > show view I look to the android view but i have no allocation tracker view there. I use search view tool and I can't find any Where is this View ? (If it's obvious, i am sorry because i reallu can't find it)

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Android :: Using Allocation Tracker In DDMS

Oct 4, 2010

I have an Activity that is running out of memory in CreateSurface. The logcat looks like this: 10-04 17:55:52. 574 : ERROR/SurfaceFlinger(1086): createSurface() failed, generateId = -12 10-04 17:55:52.574: WARN/ Window Manager (1086): OutOfResourcesException creating surface 10-04 17:55:52.574: INFO/WindowManager (1086): Out of memory for surface! Looking for leaks. 10-04 17:55:52.574: WARN/WindowManager (1086): No leaked surfaces; killing applicatons! 10-04 17:55:52.574: WARN/ActivityManager (1086): Killing processes Free memory at adjustment 0 I'm trying to use DDMS to figure out what's going on but when the application gets killed DDMS aborts the Allocation Tracker. Is there a way to cause the application to do a core dump and is there a tool for analyzing dumps? I have SDK version 8, which does not allow simultaneous use of DDMS and the Eclipse debugger so I need to get creative.

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Android :: Camera Preview Application - Buffer Allocation?

Nov 21, 2009

I have some questions regarding the code below for camera preview application.

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2. How does the rendering buffer (frame buffer BB and frame buffer FB) get allocated in the camera preview application? Are they allocated by the application?

3. How does this surface relate to the preview buffers? Are the preview buffers allocated by the Camera Service during startPreview?

private class CameraSurfaceView extends SurfaceView implements SurfaceHolder.Callback {
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} public void surfaceCreated(SurfaceHolder holder) {
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} catch (Exception e) { Log.e("Camera", "Failed to set camera preview display", e);
} } }

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Android :: Avoiding String Allocation In TextView.setText()

Dec 28, 2009

On Android 1.5, using the Allocation Tracker I see that every time I call TextView.setText() with a StringBuilder as first argument, a String gets allocated from the following call stack (first line is last call):

java.lang.AbstractStringBuilder toString java.lang.StringBuilder toString android.text.TextUtils stringOrSpannedString android.widget.TextView setText

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Is there a way to avoid this allocation?

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HTC Desire :: Allocation Of Sounds To Functions

Sep 13, 2010

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Dec 14, 2011

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Settings>Applications>Manage applications>All
112Mb used of 1.9Gb available.

Settings>Storage>USB storage
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Settings>Storage>SD card
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Aug 11, 2010

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Android :: What Are Limits Of Internal Storage?

Jan 12, 2010

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Android :: Want To Set Datepicker Date Limits

Mar 26, 2010

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HTC Desire :: Does All Applications Get Saved By Default To Phone Memory Or SD Card?

Jul 14, 2010

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Android :: What Are Size Limits Internal Storage?

Jan 12, 2010

1) Our Android app will store data in a built-in SQLite DB. I see the DB can throw android.database.sqlite.SQLiteFullException, but there's no exact info in API what is the limit. Could anyone tell what are the size limits for a DB in order not to get into the SQLiteFullException? I assume DB will store data in device's internal storage (versus SDCard). Am I right? Given SQLite DB is just a file, probably the DB size is limited with free internal storage space. Again - Am I right? If yes, then what is the internal storage size on Android? How to detect it? Does it vary on a device model basis or OS version basis? 2) We'll also need to save app settings. I think SharedPreferences will fit nicely. However the question is - are SharedPreferences saved to the internal storage too? If yes, then is it the same storage where the DB stores its file.

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Android :: SQLite On Union With Limits Alternative

Jul 26, 2010

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Android :: Set Scale Limits On Pinch Zoom?

Sep 28, 2010

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Android :: How To Get Size / Limits Of A Touched Area?

Jul 26, 2010

I'd like to know if there's a way to get the size or the limits of a touched area ? So for instance, it could give me how many pixel the finger is covering.

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Android : Need To Change - Old Image Is Staying In Memory

Oct 30, 2009

I'm getting some reports from the remote stack trace plug-in, with this error (see below)

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And then when I need to change the image, findViewById(R.id.instructionsBack).setBackgroundResource (R.drawable.instructions2);

From the error, I'm guessing that the old image is staying in the memory and preventing the new one from loading?

What's the correct way to do this kind of thing? Code...

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Android :: Change Default Account?

Sep 4, 2010

I just synced with app brain and immediately afterwords received about 7 messages saying my credit card was billed. i was able to stop 3 of them. (by the way this was app that i didn't buy, have on my phone, or ever even heard of for that matter) now verizon is telling me that the only way to change the default account is to do a hard reset, which we all know, but then also said that unless i put the original account back on the phone, i wont be able to get the apps that I DID pay for, without buying them again....THAT is bullshit! the apps should be associated with the phone number, not a freaking email account. does anyone know if there is anyways around this?

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Android :: Change Default Sms With Handcent

Sep 2, 2010

I just downloaded the Handcent to my EVO and followed all the steps provided in the FAQ and can not seem to get it to ONLY recognize the Handcent and not the orig. droid SMS that came on my phone. Please help me with this. I haven't been able to find anyone with a similar problem with the EVO.

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Android :: Change Default Sms Client?

Dec 11, 2009

I have handcent and I accidentally clicked the default for the standard client and all I want to know is how do I reset it so that handcent is my default sms client again?

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Android :: Change Default Package Name Of R.java

Jun 15, 2010

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Android :: Change Default Gmail Account

Aug 22, 2010

I have 3 mail accounts on my galaxy S. I want to change the default account and remove the existing one but can't. I get the message: this account is required by some application. I'd have to do a reset. That's a pretty dramatic step. Loose all personal data. Is there NO other way Google?

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Android :: Change Default Language To Chinese

Oct 31, 2009

How to change the default language from english to chinese for HTC Hero. Is there any other ways except reinstall a new ROM?

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Android :: Want To Change Default Look Of A Scrollview In Droid?

Apr 17, 2010

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Android :: Possible To Change Default Shape Of A Button?

May 15, 2010

Is it possible to change the default shape (i.e rectangular) of the button (normal button as well as imagebutton) to something else maybe like star or a triangle in Android?

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Android :: Change Caller ID Default Picture?

Oct 20, 2009

So I have an HTC Hero (1.5) and was wondering if there is any way to change the default picture that pops up when a caller calls or you have an outgoing call. The little alien picture bugs me.

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Android :: Possible To Change Default Arrangement Of Gallery?

Sep 17, 2010

Is it possible to change the default arrangement of the Android Gallery? What i meant is can we make the Gallery in a curved path, where the images will be along the curved path and the same time it has all the properties of the Android gallery?

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Android : Way To Change Default Color Of List?

Jul 8, 2010

I want to change the default highlight color for list.But it doesn't work, the allow list area has set to the high-light color I want to set. Any thing wrong with my code?

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Android : Way To Change Default Correction Of A Word?

Nov 12, 2010

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General :: How To Change Default Camera App On Android

Jan 4, 2014

is there any way to change the default camera app on android? I ask because I have a Moto X and want to get a alternate camera app when I do the twist camera gesture on it. I figured it runs very-close-to-stock android so if possible it's an OS option first.

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General :: How To Change Default Directory Of Android

Oct 11, 2013

I have some apps such as Google Drive where I have no options to set the download directory, so it will only download to my internal storage in the default Downloads folder. How can I change this default Downloads folder to something else?

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Android :: ImageView Pinch Zoom Scale Limits / Pan Bounds

Oct 7, 2010

I wanted to create an gallery with images.The images within the gallery should be zoomable and pannable. I could able to pinch-zoom an image but could not able to set zoom limitand prevent the image from being panned off the screen. I used the following code to zoom an image:http://code.google.com/p/4chan-image browser/source/browse/src/se/robertfoss/MultiTouch/TouchImageView.javaspec=svnd3e623ddeb6f9e97d9eba2c7aaa7c4567a3822b5&r=d3e623ddeb6f9e97d9eba2c7aaa7c4567a3822b5 First approach : I used TouchImageView to supply images to gallery, this allows me to pinch zoom but can't scroll the gallery. i.e I cant differentiate between 'single tab event' and 'tab to scroll event'

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Android :: Change Default OnListItemClick Behavior Of ListView

Jun 18, 2010

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Android :: Change Default View When Opening Gmail App

Nov 12, 2010

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