Android :: Rendering Microsoft Surface Identity Tags In Java For Android
Mar 2, 2010
I want to write an application for Android devices that interacts with the surface and I need to be able to have the Android device display Microsoft Surface Identity Tags. I was able to create a class to draw the Byte Tags using the Byte Tag documentation but all I could find for the Identity Tags was this MSDN documentation and it doesn't include any information about how to draw them. Can anyone point me to some documentation on how to generate Identity Tags programmatically?
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Aug 30, 2009
I would like to write OpenGL classes and test them in java outside of an Android device or emulator, and then use these in the Android.
Has anybody done this?: If so, are there JOGL implementations that are directly compatible?
I tried doing this on Windows using JOGL and writing wrappers, etc, but it turned out to be a real mess. I finally gave up when I didn't know how to get a GLU instance for a frustrum call.
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Jul 23, 2009
Can we set uses-permission tag from a java program?If yes,then how?
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Nov 24, 2010
Is there any built-in function available in java for removing contents (ex: white space) between XML tags: <student> <name>miya</name> <number>12</number> </student> I want to convert the above document as: <student><name>miya</name><number>12</number></student> by removing the white space?
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Jan 22, 2009
How do I create blur surface from android.view.Surface?
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Nov 10, 2013
I have had a problem with no matter what android phone I have. This has been doing it for quite some time but I dealt with it but last night I lost 12 GB of music so here it is:
Whenever I move music in these situations, it will erase all ID3 Tag information (Artist, Album, etc) and all it has is the file name. I had 2000 songs with artist names and all, but when moved it all became unknown artist. Here are the situations:
Galaxy S3: Moving Music from one folder to another (Like from a Download folder to my music folder on external SD). Or from moving music from internal to external or vice versa.
Optimus G: Moving music from one folder to another on the internal storage (Again, like from a download to music folder).
Evo 4G: Just moving from folder to folder.
All this is done with ES. File explorer. I tried other but they do it too. It can not be device specific because it happens on almost any android. All songs are in MP4/MP3 format and maybe some .wma.
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Nov 2, 2009
In the course of moving to the 2.0 cotnact APIs,"As long as the contact's row ID remains the same, this URI is equivalent to CONTENT_URI. If the contact's row ID changes as a result of a sync or aggregation, this URI will look up the contact using indirect information " Currently, we store contact IDs to identify particular contacts. If I read this right, contact IDs will no longer be stable in the world of 2.0, and we will need to store a lookup URI (or at least a LOOKUP_KEY and a row ID) in order to identify a contact in a stable way.
That would be a substantial change in our code. So, before I rush off to do it, I'd love to find out if a contact row ID change is going to be a routine thing (say, on every sync), or if it will be a very rare thing (say, when two contacts are manually combined into one, or some even rarer exception).
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Oct 12, 2010
I'm looking for a way to determine user identity so I can globally track game scores off phone.IMEI provides identity of the phone - not effective if phone is on- traded or upgraded by individual. USIM provides identity of phone carrier subscriber - assumes device is phone, and currently has a SIM card.I'd like to be able to provide continuity as a user upgrades to a new device. And I dislike being forced to create an account on each global scoring system, so I don't want to force that on my users. And my end user experience with OpenFeint leaves me disinclined to use it.It doesn't need to be bullet proof. But it does need to be hassle free for my users.Is there any other identifier on an Android device that I can use to link data more cleanly with the current owner? And how would I get hold of that identifier? I'm thinking something like the user's Google account .. or similar
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Feb 27, 2010
For applications that set the android.permission.READ_PHONE_STATE permission. What is meant by "identity" in the permission description "read phone state and identity"? Users ask about this and we don't know what to tell them...
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Jul 10, 2010
I have an HTC Evo. I hope I'm posting in the correct area. I had my phone number changed and the phone identity shows the old number. How can I change it? I ask because I had some voice mails that I didn't know about, I didnt get a notification. When I click on the voice mail icon, it says no voicemail. I have to dial my phone number to get the voicemail.
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Dec 6, 2009
Anyone know what providing an application access to "Phone calls: read phone state and identity" actually does?
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Jun 23, 2010
I have an OpenGL app that manipulates it's geometry in screen space to acheive some effects, and therefore bypasses OpenGL's matrices by setting modelview and projection to identity. For some reason, Android's OpenGL implementation seems to be unhappy with this, and doesn't draw anything. The same app, compiled from the same code base, works fine on windows and on iPhone. If I load the app's projection matrix into GL's matrix, and multiply it's inverse with the final geometry prior to drawing it (which is effectively a no-op) it displays correctly.
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Apr 18, 2010
I have a simple app with a surfaceview nothing special one would say. However when installing on my phone I get two warnings.
1 - Phone calls
- read phone state and identity
2 - Storage
- modify/delete SD card content.
My really is nothing more than a simple puzzle and I dont understand why I get these warnings.
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Aug 15, 2010
Background; I am in the process of writing an Android messaging application that needs to know the current user's phone number. This is then used to connect to other users using the application. My application relies on looking up the user's number from Android's Settings -> About Phone -> Phone identity -> Phone number (this can at times be blank.. but that is a separate problem). I am assuming that the above Phone number contains the user's full number. ie, my UK Android phone shows my number as: +447832xxxxxxxx, where 44 is the UK's international dialing code and 7832 is the operator. Is it safe to assume that all Androids phones would include the international dialing code, which starts with +? I would be indebted if any Android users could have a quick look at their Android settings and confirm whether Phone number is displayed as +international code+operator+number, i.e. US Android sets start with +1xxxxxx.
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Nov 17, 2009
My android app has nothing to do with phone calls, but I'm seeing that when I install a debug build on my test device it requires "Phone Calls: read phone state and identity" permissions. (I make no mention of this in AndroidManifest.xml). I'd like to have the minimum possible permissions, and wondered if anyone knew how to get rid of this? I commented out the part where I was logging some stuff from Build.MODEL, Build.VERSION.*, etc. I also commented out the part where I was detecting the landscape/portrait orientation thinking that that might be the "phone state". But neither of those seemed to remove that permission required.
I found this bug report but it's marked working-as-intended with a note about permissions being correct from the market but not otherwise. Is this other people's experience? (I'd hate to have to publish to the market just to test that out.) Otherwise, does anyone know if there's an API I can avoid calling that will make it so my app doesn't need this permission?
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Nov 10, 2010
I wrote a program in Android for setting different kinds of images as my background image, but it is not working with svg files. I am not getting any errors, it is not displaying any image and I'm getting a blank screen in my emulator when using svg files. Can any one suggest how to read and display svg files in Android with some code? Or should I convert xml code?
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Apr 27, 2009
I'm trying to compare the difference in speed between software and hardware graphics rendering. I have 2 apps right now - one written with only java/android 2D APIs, and one written with openGL calls...
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Sep 10, 2010
There's a decent amount of information out there on the Activity lifecycle. But I'm surprised how difficult it is to find a comprehensive description of the rendering lifecycle. By that I mean the order and rules by which a tree of nested activities, views, and drawables get to be sized and drawn to the screen, and the points at which a developer can modify rendering behavior.
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Feb 3, 2010
I'm having a XML file like:
CODE:....................
In this i need to parse <date> tag. I need only the date tag in <firstroute> only not in <segfirstroute>.
I need jan 25th & apr 18th. But i'm getting jan 25th, mar 6th , apr 18th & july 29th.
How to get only that 2 tags?...
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May 13, 2010
I need to find out how big a view will be after attaching it to its parent.I have overridden this method: Do you think there is a way to get this information before rendering the view itself? Basically I need to know the actually size before attaching it and not attach the view at all if it would take more certain amount of space. Code...
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Jul 15, 2009
Can anyone help me to understand how WebView decided which content it can render and which it can't? For example I am inside a webview select a link and if the link sends an XML file I want my application to handle to data instead of WebView, Is this possible?
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Jun 22, 2010
I have an ImageView object that I'm setting the android:src="@drawable/some_xml_file" instead of a standard png and it seems to not always render the drawable, as you can see in the first row here (it also happens intermittently in other rows as well):
I've tried setting the src & the background property but they both have the same effect. the source code from my list view row item is this:
CODE:...............
Then my res/drawable/action_box.xml is this:
CODE:................
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Apr 14, 2010
I need to render video on android. I got sw decoder which decodes stream to YUV or RGB with very reasonable cpu usage, but so far haven't found a nice way how to render frames.
I have tried 3 methods so far: 1) using opengl from native code: * create a texture of type GL_TEXTURE_2D * set coordinates to fill full opengl rendering area * to render a frame update the texture with glTexSubImage2D or glTexImage2D function (more or less the same method that is used in vlc media player)
With this method the performance is most terrible.. VGA rendering @5..7FPS uses up 100% of nexus one cpu!
2) rendering with canvas function Canvas.drawBitmap(int[] colors, int offset, int stride, int x, int y, int width, int height, boolean hasAlpha, Paint paint)Was hoping to use this via JNI. First i just made a simple perfo test: * colors array was initialized in java code * then I just called mSurfaceHolder.lockCanvas(); canvas.drawBitmap(colors, ... ); mSurfaceHolder.unlockCanvasAndPost(canvas); in sequence
Perfo is better than with opengl - VGA@30FPS uses up 40% of nexus one- s cpu...
3) Rendering with canvas function Canvas.drawBitmap(Bitmap bitmap, float left, float top, Paint paint), while updating bitmap in native code * in java code i do:
CODE:.......
To get native pointer to memory (need to link to native android library libskia.so to get these functions) * copy or decode the video frame to this memory
With this method i get only 10% cpu usage when doing VGA@30fps... but lets face it - its a hack which may break in future. Am I missing something or there really isn't any better way to render video? for example some opengl extension function etc..?
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Mar 16, 2010
I'm putting together a simple test made up of two tutorials available online for OpenGL ES on Android. This is really just so that I can learn about the basics of OpenGL ES to better understand how I have to design my program.
Right now, when it tries to render, the mouse movement effect works, but I get no square drawn on the screen.
Here are the two source files I'm dealing with:
CODE:.......
The second one is the tile object itself:
CODE:........
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Jun 15, 2010
When trying to process this png image, webkit displays it blurry.
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Mar 26, 2014
I have an Android app with a C++ library which uses pthreads to break down rendering tasks. This is for devices running Android 4+.
Lets say I have a 100 x 100 array of elements into which I repetitively do CPU-intensive processing. Currently I'm breaking the array up into four 25 x 100 element chunks and handing it off to four Posix threads (from a pool of stalled, pre-created threads). This gives an almost 4x speed increase on iOS and desktop Mac but slower results than single-threading under Android.
So the same code is used successfully to speed up the app on iOS or desktop Mac but in Android it often makes it even slower. I have done some tests on it and only quite big junks of data speed up when using multi threading. If the whole process (all threads) takes around 2 seconds or more it will speed up in multi threading mode but if it is less (say only takes about 400ms) it will be either the same speed or slower than just calling the rendering function normally. Which could point to thread switching being really slow. The bigger the processing tasks, the more they profit from multithreading. My tasks are usually not as big, but not fast enough in single threading mode.
I have also noticed that on ARM builds the speed difference between slower multi threading and the faster single threading is quite significant (almost twice as fast in multi threading rather than single threading) whereas on x86 builds the multi and single threaded versions will run at about the same speed as single threading on ARM builds. So x86 builds do not get slower on multithreading but also not faster.
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Feb 3, 2010
I am planning to write a video player application and I am planning to use the gstreamer on the native side. I am trying to use the SurfaceFlinger for the rendering part. For this I have written a test program to experiment on the rendering part. I am using the surface flinger wrapper from the project
http://gitorious.org/rowboat/external-gst-plugins-android
But the following ERROR occurs when we try to run the .apk.
CODE:.......
The I changed the permission for "android.permission.ACCESS_SURFACE_FLINGER" in frameworks/base/core/ res/AndroidManifest.xml to "dangerous" and recompiled. But got the same error.
Then I commented out the "checkCallingPermission" method in IServiceManager.cpp and recompiled. Then also i got the same error.
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May 20, 2010
I am working on a graphics application in Android. I have a question regarding MULTIPLE SURFACE VIEWS. Can I be rendering multiple surface views at the same time. Initially, when I had two surface views in the same activity, it didn't seem to work, as it used to show only one at any time. But, with one surface view attached to one activity, is there any way I can keep the background activity's Surface View alive so that both the surfaces get rendered together?
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Dec 27, 2009
Looking the doc with class SurfaceHolder is possible set the kind of surface format. I need to show images YCbCr_420_SP format. If I set YCbCr_420_SP format is not clear after how I can set the data. With Canvas object I can draw only bitmap format and not YCbCr_420_SP. Then my question is : can I draw directly on surface using YCbCr_420_SP data ? how ?
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Aug 29, 2009
I am trying to add an image on surface view. I have coded...
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