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• Android views' borders issue on some devices

  - by htafoya

  Hi there, Some users have been reporting border alignment issues on some android components such as the alert popup or the editTexts. This is happening on the Samsung Galaxy Apollo (200x400) and the HTC Pro Touch (480x640) devices. I cannot replicate that because i don't own those devices and in the Samsung Galaxy S and emulator everything looks just right. I think that the problem is the dpi or resolution of the device (because the edittext background is a single .9.png so image should look ok); however I am not sure if the supports-screens tag is the solution. Also, application was developed using Api 3 (v1.5) and supports-screens was not yet supported, nor the screen-size resource qualifier. The style used for the alerts and editText is the phone default. Could the problem be something related with the theme applied to the phone by the user? Thanks in advance!, I show some images given to me showing the problem: //EDIT: I can't post images because i am new; i will put a link: borders issue link img

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• Android: Using GEO uri

  - by Sebastian

  Hi, I have read the doc and some tutorials to get a .kml file working launching the google maps activity. When I hosted the file in a server, this works perfectly: Intent myIntent = new Intent( android.content.Intent.ACTION_VIEW, Uri.parse("geo:0,0?q=http://somedomain.com/file.kml") ); Now, reading this link on how to use intents for gmaps with the developing stage of GEO uri I can't manage how to load a kml file from within the device, I have tried with "q=file:///path-to-file.kml" and with an absolute path too. Has anyone done this yet? PS: in IRC channel recommend me to use apps based on openstreetmaps, but the docs is much more poor than the gmaps doc althought they are OS.

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• Drag and drop + custom drawing in Android

  - by Rich

  I am working on something that needed custom drag-and-drop functionality, so I have been subclassing View, doing a bunch of math in response to touch events, and then rendering everything manually through code on the canvas in onDraw. Now, the more functionality I add, the more the code is growing out of control and I find myself writing a ton more code than I would expect to write in a high level environment like Android. Is this how it's done, or am I missing something? If I'm not doing anything fancy in the UI, the framework handles the majority of my interactions. Built-in controls handle the touches and drags, and my code is pretty much limited to business logic and data. Is there a way to leverage the power of some of the UI controls and things like animations while also doing some of it manually in the onDraw canvas? Is there an accepted standard of when to use one or the other (if indeed the two approaches can be mixed)?

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• OAuth Request token = null in android app

  - by jonney

  Hi, i am trying to authenticate something(in this case LinkedIn) using OAuth but the requested token always returns null? Here is my code below: public void authenticateAppOauthApi() { Log.d(TAG, "authenticateAppOauthApi"); OAuthServiceProvider provider = new OAuthServiceProvider( REQUEST_TOKEN_PATH, AUTHORIZE_PATH, ACCESS_TOKEN_PATH); OAuthConsumer consumer = new OAuthConsumer(CALLBACK_URL, API_KEY, SECRET_KEY, provider); OAuthAccessor accessor = new OAuthAccessor(consumer); Intent intent = new Intent(Intent.ACTION_VIEW); Log.d(TAG, "Intent intent = new Intent(Intent.ACTION_VIEW );"); // intent.setData(Uri.parse(url)); String url = accessor.consumer.serviceProvider.userAuthorizationURL + "?oauth_token=" + accessor.requestToken + "&oauth_callback=" + accessor.consumer.callbackURL; intent.setData(Uri.parse(url)); Log.d(TAG, "intent.setData(Uri.parse(url)); = " + url); mContext.startActivity(intent); Log.d(TAG, "finish authenticateApp"); } I basicaly followed the example here http://donpark.org/blog/2009/01/24/android-client-side-oauth thanks in advance

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• Android: making a custom ListView independent of adapters ?

  - by wei

  I am adding a local database as a cache to a remote web service in my android application to answer queries. I used ArrayAdapters before for list views to display the results from the web service. Now with a database cache, the result could be either a Cursor(from database) or a List(from web), which means the adapter can be CursorAdapter or ArrayAdapter too. Creating two adapters for one query doesn't seem to be a good idea. So I am wondering what would be the best way to refactor my current code to add this database feature? Thanks,

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• Android Paypal One time Payment

  - by Ameya

  Hi All, Does any one know, or is it possible to do one time payment, with paypal in android ? Consider the senario. Buyer purchases installs free application. Clicks on paypal module and makes in-app payment, purchases feature successfully. Buyer deletes application. All information including the feature purchase enty in database is deleted. Buyer reinstalls the application. Here is the catch, if he wants to use the feature he will have to do a re-purchase. Which I wann to avoid in my application. This is taken care in iPhoen in-app purchase. That is if a buyer has already purchased an feture or in-app item, and if he trys to repurchase it (item has been set to one time payment) , the in-app purchase transaction will succeed without the user actually having to repay for the item. Is there an solution for this can anyone help.

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• Android - LinearLayout Horizontal with wrapping children

  - by kape123

  Is there a property to set for Android's LinearLayout that will enable it to properly wrap child controls? Meaning - I have changeable number of children and would like to lay out them horizontally like: Example: Control1, Control2, Control3, ... I do that by setting: ll.setOrientation(LinearLayout.HORIZONTAL); foreach (Child c in children) ll.addView(c); However, if I have large number of children, last one gets cuts off, instead of going to next line. Any idea how this can be fixed?

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• Android Database

  - by Max

  I'm trying to build a simple app to get to grips with android as I'm new. I have programmed for years in PHP and MySQL so it's not completely unfamiliar to me, but one concept is at the moment confusing to me. If I wanted to create this app with 100's of questions how would I create the database like this. What I mean is at the moment my app runs and creates the database. Would I need to do this everytime the app runs as i'm guessing if it was a lot bigger it would mean a slow load evert time. Or is there a way to create the database once and then when the app runs there is no need to populate it. Max

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• AIR for Android, Flash iphone packager, Playbook support for streaming camera and choosing camera

  - by mswallace

  I am wondering if anyone can definitively tell me if Flash / AIR can find all these mobile devices front facing camera and use RTMP to stream the video captured ? I would like to create a video conferencing app for these devices. Of course none of them support testing this in the simulators and I don't have the funds to purchase or access all of them that I would like to test. Wondering if anyone can shed some light on this for me. I have seen some posts where they have done this for android but not sure about support for finding a list of cameras, choosing one and streaming from iphone 4 and playbook. thanks for any help on this.

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• Android RelativeLayout spacing

  - by fordays

  Hi, I'm just putting the finishing touches to my Android app. Unfortunately, I dug straight into development without reading the documentation and built my layout with AbsoluteLayout and it turned out to look terrible when I loaded the app on my phone. Now I'm redoing the UI in a RelativeLayout and I want to put empty canvas space in between my ViewGroups in the y-direction. I am currently achieving this by putting random TextView sentences that are of the same color as my View's background in order to make psuedo-empty space. Is there a better way to do this, because right now when I define a specific ViewGroup to be placed below another View, it gets stuck right below the top View. As I was writing this, it dawned upon me that using padding might be the answer.... Any other suggestions?

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• Android NDK R5 and support of C++ exception

  - by plaisthos

  Hi, I am trying to use the NDK 5 full C++ gnustl: sources/cxx-stl/gnu-libstdc++/README states: This implementation fully supports C++ exceptions and RTTI. But all attempts using exceptions fail. An alternative NDK exists on http://www.crystax.net/android/ndk-r4.php. Even the hello-jni example from that site does not work. Compliation works after creating an Application.xml with APP_STL := gnustl_static But it dies the same horrific death as my own experiments. Am I am missing something or is the statement in the README just plain wrong?

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• Android: chronometer widget and layout() method could not work well at the same time

  - by Lennard

  I write a test android app, in which there are only two views, a chronometer and a imageview. Using the layout() method of the imageview to dynamically change the position of it, I wish to implement drag-and-drop effect. It does work. However, each time the chronometer ticks, the imageview is always reverted to its original position, which seems that the whole screen is reloaded from the layout xml. So, does anybody know how to prevent the imageview from reverting to the original place, and let chronometer and drag-and-drop effect coexist? Thx

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• launch android activity from non-activity class

  - by Alberto Barrera

  im New on Android. I know theres a lot of similar Questions but anyone is helping. Im using a 3rd party app that just launch a class that extends their own class. So from that class i would like to launch an activity. public class SkyTest extends VtiUserExit { @Override public VtiUserExitResult execute() throws VtiExitException { // TODO Auto-generated method stub logInfo("TEST"); return null; } } How do i launch an activity named MainActivity from here. i tryed this: Context context = null; Intent intent = new Intent(context, MainActivity.class); context.startActivity(intent); but its not working, i know i cant use the null context, but how do i create a context o how it works? Thanks

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• Android HTTP Connection

  - by Ubersoldat

  Can anybody tell my why this doesn't work in the Android emulator? From the browser I have access and the server is internal. All I can think of is that I'm missing some configuration on my app so it can access the network layer. try { InetAddress server = Inet4Address.getByName("thehost"); //Doesn't work either //or InetAddress server2 = Inet4Address.getByAddress(new String("192.168.1.30").getBytes()); if(server.isReachable(5000)){ Log.d(TAG, "Ping!"); } Socket clientsocket = new Socket(server, 8080); } catch (UnknownHostException e) { Log.e(TAG, "Server Not Found"); } catch (IOException e) { Log.e(TAG, "Couldn't open socket"); } Throws an UnknownHostException Thanks

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• Design pattern for extending Android's activities?

  - by Carl

  While programming on Android, I end up writing a parent activity which is extended by several others. A bit like ListActivity. My parent activity extends Activity. if I intend to use a Map or a List, I can't use my parent activity as superclass - the child activity can only extend one activity obviously. As such I end up writing my parent activities with the same logic for Activity, ListActivity, MapActivity and so forth. What am I looking for is some sort of trait functionality/design pattern which would help in this case. Any suggestions?

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• Level of Detail for 3D terrains/models in Mobile Devices (Android / XNA )

  - by afriza

  I am planning to develop for WP7 and Android. What is the better way to display (and traverse) 3D scene/models in term of LoD? The data is planned to be island-wide (Singapore). 1) Real-Time Dynamic Level of Detail Terrain Rendering 2) Discrete LoD 3) Others? And please advice some considerations/algorithms/resources/source codes. something like LoD book also Okay. Side note: I am a beginner in this area but pretty well-versed in C/C++. And I haven't read the LoD book. Related posts: - Distant 3D object rendering [games]

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• What's the most "death-resistant" component on Android?

  - by Arhimed

  I'm looking for the most suitable class to be a dispatcher for AsyncTasks invoked from my Activities. I think it could be one of these: subclass of Application; subclass of Service; my own static stuff. As for me - it's simlier to implement the 3rd choice. But the question is will it be more "death-resistant" than Service or Application? Also it's very interesting what will live longer - Application or Service? My guess is the Application lives as long as the app (task in terms of Android) process lives. So basically I need to range those options by their "death-resistant" quality, because I'd like to rely on the most "static" thing.

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• Android Apps Not Showing Up In AVD

  - by Mike

  I recently started messing with Android Apps, but I have had nothing but problems trying to get them into the Virtual Device for testing. For some reason, they never seem to show up in the AVD. It has worked one time, but that's it out of hours spent just trying to test one or two very simple apps. I've redone the AVD setup many, many times, trying different settings and what not to no avail. I've followed multiple guides and tutorials to the letter to get it working, but they just refuse to show up in the list. :( Any insight would be appreciated, thank you.

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• Android Canvas.DrawBitmap without blurring/AntiAliasing?

  - by Sh33p

  I'm trying to make an android game using sprites, (or very pixelated characters, backgrounds etc.). I draw them on the canvas like so... matrix.preScale(xrat,yrat); canvas.drawBitmap(img, matrix, null); Where img is the Bitmap and the xrat and yrat are the scales. My problem is that when I test, the Bitmap is blurry or anti-aliased, is there a way to prevent this? The rigid-blocky art style of the game will be ruined if the blocks are blurry. Any (ANY) help appreciated!

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• How to implement a "hidden" Android app?

  - by mawg

  I would like an application which is not readily apparent to casual perusal of the Android. How best to activate it and bring its screen to the fore? Can I detect a special dialing sequence, like *1234#? Or a hotkey combination? When activated, I guess I can pop up an anonymous screen which does not mention the app, but only asks for a password. If password is ok, then show the app. Any suggestions?

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• Android and Google Maps API - Icons

  - by oriharel

  I want to place markers on the map. I want to use the standard Google Maps icons for markers. how do I use them? I don't want to create my own icons. I'm developing for Android. in the documentation they tell me to create a class that overrides ItemizedOverlay but in the constructor I'm asked to provide a drawable object. how do I point to the standard Google Maps ones? thanks.

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• Android : How to Remove all capital letters from image filenames before importing into Eclipse

  - by Hubert

  As you know, you can't have capital letters in your image filenames that you use in your Android project (Ressource/Drawables folder). I've got hundreds of small images (GOOG.GIF as an exemple) that I need to import into my project (I usually do a simple drag and drop from a desktop folder into Eclipse). So here's the question : How do I quickly change all the filenames (replace all capital letters to lower case) before importing into my project ? So, GOOG.GIF becomes goog.gif AAPL.GIF becomes aapl.gif etc. Any quick command line solution or another tool to do just that ? Thanks.

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• Push a bookmark to a user's home screen in Android

  - by JohnTheBarber

  Android 2.1 (not sure how much that matters) My test hardware is a Motorola Droid (not sure how much that matters either) I want to push a bookmark/internet-shortcut to a user's home screen as a result of them clicking on a link - via their browser of choice. I know they can usually set the bookmark themselves and then choose to put it on their home screen. But I'd like to provide a link like "Put a shortcut to this page on your home screen" that takes care of everything kind of in the background/underneath. Is this even possible? What parts of the framework would I need access to to make it happen?

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• Audio Playback Rate in Android

  - by Marquis

  So, I know that this has been done with a few Android apps before, but I cannot for the life of me figure out how, since it's not currently possible through the API. How does one adjust the playback rate of a sound played through MediaPlayer; either with or without adjusting the pitch is fine for now, though the latter is definitely preferred. If someone can point me in the direction of an open source app that I can use as guidance, that would also be fine. Thanks in advance.

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• Creating custom Android project templates in Eclipse?

  - by Rich

  Every app I make starts out with a number of common base classes, interfaces, utility classes and a basic package structure that has been working for me. Is there a way for me to set up a project template in Eclipse that will give me all of the basic Android project stuff PLUS a bunch of custom packages, classes and interfaces? I guess I could just put all of this stuff into one or more libraries as opposed to creating a whole project template, so if you have a preferred approach or information/links/etc on how to do any of the above, please share (I'm relatively inexperienced with Eclipse, so the more detail the better). Thanks.

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