Re: [android-developers] applying effects to camera images
Thanks Richard and Harri, I will follow what you suggested, and hoping that will somewhat help in my goal. Thanks n Regards, NSR. -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: HTTP server in Android
Hi, No sure that will work if both emulators have the same IP address. I'd try running server client programs in the same emulator. For the server use any port number between 1025 65535 that is not already used, ports below 1024 are generally reserve in linux/unix system need su rights. Regards On Friday, October 5, 2012 5:54:45 PM UTC+10, Archana wrote: Hi, I need to create an application(using 2 emulators) in which: Each emulator serves as a server and a client. Server starts as a service in background. On request by the client, I have to transfer the contents of a JSON file from 1 emulator's server to other emulator's client.. Can you please guide me in the usage of how to use port numbers(as the IP addresses of both instances of the emulator is the same)? Thank you! On Friday, October 5, 2012 5:48:19 AM UTC+3, gjs wrote: Hi, Change the port number in your request - PORT = 8765 not 8080 And yes you can write your own http server simply by using a server socket. http://docs.oracle.com/javase/tutorial/networking/sockets/clientServer.html Regards On Thursday, October 4, 2012 3:57:58 PM UTC+10, Archana wrote: Hi, I want to develop HTTP server in Android. I used the link https://gist.github.com/1893396#gistcomment-582451 NanoHTTPD. But when I open the page http://10.0.2.15:8080, I am getting WebPage not found. In the logs, I am getting 10-04 05:55:39.106: E/Tab(499): onReceivedError -6 http://10.0.2.15:8697/ The connection to the server was unsuccessful. Can anyone please tell me what the error is about? Or is there any other way to implement a HTTP server in Android? Thanks in advance! -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] What are arbitrary units in the javadoc for computeVerticalScrollOffset?
ListView sometimes uses the item unit (total number of items, first
visible item, etc) instead of pixels because it cannot always know the
exact pixel height of all items. You can also use units that come from your
dataset (a map could very well use meters for instance, a graph could use
time or percentage.)
Feel free to use pixels but it's not mandatory. What matters is that all 3
methods use the same unit.
On Oct 6, 2012 7:50 AM, Raffaele Sgarro raffaelesga...@gmail.com wrote:
The documentation for computeVerticalScrollRange()
sayshttp://developer.android.com/reference/android/view/View.html#computeVerticalScrollRange()
:
Compute the vertical range that the vertical scrollbar represents.
The range is expressed in *arbitrary units* that must be the same as the
units used by
computeVerticalScrollExtent()http://developer.android.com/reference/android/view/View.html#computeVerticalScrollExtent()
andcomputeVerticalScrollOffset()http://developer.android.com/reference/android/view/View.html#computeVerticalScrollOffset()
.
The same *arbitrary units* are mentioned in the other two methods.
Looking at the sources, this is what I found:
protected int computeVerticalScrollRange() {
return getHeight();
}
protected int computeVerticalScrollOffset() {
return mScrollY;
}
protected int computeVerticalScrollExtent() {
return getHeight();
}
So, what's going on here? getHeight() is documented to return the height
of the view in pixels, and I wander if it makes any sense to measure things
in miles, kilometers, astronomic units... Do they documented it in such a
way to allow subclasses to use percentages or number of items?
In particular, I looked at this methods because I'm implementing a
ListView with a custom backgroundhttp://stackoverflow.com/q/12737600/315306,
and it seems I need to deal with scroll dimensions
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[android-developers] Re: XML Pull parser
hello.. can anyone pls suggest me a tutorial on xml sax or pull parser that use async task to read data from web.. help guys.. thanks in advance!!.. -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Re: XML Pull parser
Hey wts ur querey? On 7 October 2012 17:11, vaish vaishalisharma...@gmail.com wrote: hello.. can anyone pls suggest me a tutorial on xml sax or pull parser that use async task to read data from web.. help guys.. thanks in advance!!.. -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: Can I offer a trial period for an otherwise Google Play subscription-based service?
While I do not know the answer to the original question, it certainly seems like a reasonable question to ask in this forum. I would not be so bold as to claim that no one here can or would answer it. Speak only for yourself. On Oct 6, 3:57 pm, TreKing treking...@gmail.com wrote: On Sat, Oct 6, 2012 at 2:53 PM, Sorenchr soren.qv...@gmail.com wrote: I'm wondering if it's against the Google Play policies No one here is qualified to give you advice on what is or isn't against their policies. Read them for yourself and consult a lawyer if in doubt. --- -- TreKing http://sites.google.com/site/rezmobileapps/treking - Chicago transit tracking app for Android-powered devices -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: MediaPlayer.setNextMediaPlayer
On Tuesday, July 3, 2012 2:42:57 PM UTC-7, b0b wrote: Related to setNextMediaPlayer it would great to have more info such as: - for which codecs will it handle gapless ? Are there restrictions ? Can't imagine there would be a problem with codecs. The issue is that you want a continuous stream of PCM data, going to audio out, not where the (decoded) PCM is coming from. According to my own tests, setNextMediaPlayer will play gaplessly for FLAC, Ogg Vorbis and WAV but *not* MP3 and AAC (M4A). There is a small 50 or 100ms gap for these. That is very disappointing. The MP3 and AAC files I tried played gaplessly in foobar2000. There you go for codecs not making a difference... -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] set group height in ExpandableListView issue
Hello! Please help me, I have issue and can't find a solution. I have ExpandableListView with fixed height and group layout with fixed height but group's height is always unchanged for any height values! I need to make its height smaller. Thanks for any suggestions! -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: USB to PC connection
I think, you may use port forwarding via adb. This link might be a start http://qtcstation.com/2011/03/connecting-android-to-the-pc-over-usb/ Am Mittwoch, 3. Oktober 2012 12:33:09 UTC+2 schrieb Jasper Horn: Hi Al, You make an interesting point. I was intending to use the keys for authentication, and the phone is playing a server role here, meaning that only the computer would need a private key. Once it has been generated, the public key could indeed be sent over wifi safely. You do still have the two problems left, selecting a phone and getting the key unmodified, but those are solvable indeed. However, I have been thinking about this and I feel it might be necessary to extend the service beyond the original idea of only using it over wifi and allow use over the internet as well. The idea would still be the same: having a phone app and a computer application communicate (possibly through a server). Here it might be necessary to encrypt all data sent and thus we may need to have a key pair on both ends. However, that's not really what changes the situation. What changes the situation is that the two problems above get so much bigger. The data will now be sent over a much less secure connection and there are many more wrong phones you might connect to. I am not saying that isn't solvable, but this makes me want to at least offer USB setup as an option. It is possible to just connect over usb like that? On Monday, October 1, 2012 11:22:24 AM UTC+2, al wrote: Getting cryptography right is non-trivial. So take this with caution. As I understand it, you want to generate a key pair on each side and exchange the public keys. That can be done easily via wifi too since you only exchange _public_ keys. The problem is to be sure you got the right ones (i.e. that they have not been faked by e.g. a man in the middle attack). To ensure this, you might e.g. calculate a cryptographic hash of the public keys (to shorten the data that has to be compared) and display them on both sides. The user may then compare the hashes. Am Samstag, 29. September 2012 15:21:51 UTC+2 schrieb Jasper Horn: I have an idea for an app that will both have a component that runs on the computer of the user and a component that runs on the phone. The idea will be that the two will communicate over wifi. To make this secure, I want to set up a public/private key pair on the computer and the phone. In order to do this in a user-friendly way, I want to do so automatically over usb. However, in exploring how much of what I want is actually possible on android, I have been unable to find out how to have an app communicate over usb to a program on the computer. Technically, it would be similar to using the computer as a USB accessory, but I doubt it would actually be similar enough to make this work. I have also read that it might be possible using ADB port forwarding, but this doesn't really look like it would make it more user-friendly for end users. Finally, I suppose I could solve the problems by only using the file system and mounting it, storing the public key in a file on the s-card, but it's not really the ease of use that I am looking for. Is there a way of communicating between an application running on a pc and an app running on an android device that I have missed? Is there a mistake in my current understanding of the possibilities? -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Re: Can I offer a trial period for an otherwise Google Play subscription-based service?
On Sun, Oct 7, 2012 at 6:58 AM, RLScott fixthatpi...@yahoo.com wrote: While I do not know the answer to the original question, it certainly seems like a reasonable question to ask in this forum. This forum is for developing apps using the Android SDK. The OP is basically asking for legal advice regarding the Google Play policies. This is not the right place for this question. I would not be so bold as to claim that no one here can or would answer it. I am, or, um, was. I've seen this type of question come and go across this forum (and even the actual Android Market forum when it existed). The fact is that fellow developers are not qualified to answer these policy questions. And the fact is that people that would know the answer (like people at Google) will not chime in, probably for legal reasons. - TreKing http://sites.google.com/site/rezmobileapps/treking - Chicago transit tracking app for Android-powered devices -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Re: Can I offer a trial period for an otherwise Google Play subscription-based service?
According to Google, you can create a trial subscription, which seems to be exactly what you're looking for. http://support.google.com/googleplay/bin/answer.py?hl=enanswer=2476088 On Sunday, October 7, 2012 10:20:53 AM UTC-7, TreKing wrote: On Sun, Oct 7, 2012 at 6:58 AM, RLScott fixtha...@yahoo.com javascript: wrote: While I do not know the answer to the original question, it certainly seems like a reasonable question to ask in this forum. This forum is for developing apps using the Android SDK. The OP is basically asking for legal advice regarding the Google Play policies. This is not the right place for this question. I would not be so bold as to claim that no one here can or would answer it. I am, or, um, was. I've seen this type of question come and go across this forum (and even the actual Android Market forum when it existed). The fact is that fellow developers are not qualified to answer these policy questions. And the fact is that people that would know the answer (like people at Google) will not chime in, probably for legal reasons. - TreKing http://sites.google.com/site/rezmobileapps/treking - Chicago transit tracking app for Android-powered devices -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: Black screen after switching to another app
MobileVisuals eyvind at astralvisuals.com writes: My app has a SurfaceView and a GLSurfaceView. I can switch back and forth between these. The SurfaceView is the application GUI. I test switching to another app. I can then switch back to the GLSurfaceView in my app. I then try to switch back to the GLSurfaceView,where the application GUI is. Here is where the problem occurs. A black screen is shown instead of the GUI. The app still works, because the application menu is shown when the menu button is pressed. But nothing is drawn on the screen, it is only black. I have tried almost everything to fix this, I have checked that the thread is running and that no instance of any object (like the SurfaceHolder) is null. What could be the reason for this black screen? I had the same problem with my app. The problem is that you lose the GL context if your application goes to the background, and so you lose all bound textures (if you're using texture mapping), and you also lose the viewport. You need to reload all your textures and you need to re-set your viewport and projection matrix, etc. You should do this on your activities onResume() method, but you won't have a GL context there, so just set a flag in your renderer to tell it to reload everything. Your renderer will NOT always get an onSurfaceChanged() call after the resume, so don't rely on that to reset your viewport! Because you can't rely on onSurfaceChanged(), you also need to use saved values to set viewport width and height. -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: Google Docs Access
I have a module that interacts with Google Docs. I use it to scan for specific file types, download files and to use the OCR feature Google provides. I can sell the module on Chuppa mobile. I've been wanting to use that service for a while as I see a market for modules something that would be a boom for independent developers such as myself. Would you be interested ? As for how I built it. I looked at a picasa example from the documentation that is laying around on the web. I used this to understand how authentication works with Android. Then I used the Google Docs example they have for vanilla Java. Looking at the latest stuff out there. Another way to get at it is to use Intents to call on the gdrive app. I've only glance at this documentation though. On Wednesday, May 18, 2011 3:31:11 PM UTC-4, Doug Gordon wrote: My app is mainly self-contained, interacting only with the user's databases, and does not use any web or cloud technology to do its thing. However, I'd like to add functionality to download database files from the user's Google Docs account to make it easier to transfer data. There are docs online for the required APIs, but it really seems complicated and assumes prior knowledge of various web technologies (XML, JSON, HTTP headers, etc.) that are outside my realm of knowledge. It looks like a very steep learning curve just to perform this basic operation: obtain authentication, get a list of available docs to display, download selected doc file to the SD card. Is there anyplace where I can find a tutorial on what I need to know, or possibly sample code? My experience in the past is that the documentation can make it seem more complex than it actually is: 20 pages of confusing text, and then you see a sample implementation and it's just a couple dozen lines of code! Any help getting me started on this would be appreciated! Doug Gordon GHCS Software -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] activity nevigation
Hi Everybody, I am stuck in a problem, the is this that when i get nevigate from one activity to another activity then next activity appears for a milli second and its previous activity comes forword for a milli second then next activity will be stop,it happens like blinking or flactuate,it may be a siili question but a am not able to find its solution that what kind of it is exception,can some one tell me how to start next activity, I implement like this, Intent in=new Intent(A.this,b.class); startActivity(in); pls help me if any one have any idea, Thanks: Sadhana. -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
