Android :: Deploying Shared Resources
Mar 23, 2010
We are investigating the possibilities to package & deploy platform UI extensions which can contain both Java code and resources - which then can be (re-)used by applications using <uses-library> tag in the AndroidManifest.xml. One solution which has been discussed was to use the aapt -x option together with the new --custom-package option introduced in November to generate unique resource identifiers for the shared resource package. Then, just as the <uses-library> information in the manifest file would bootstrap the class loader with the listed extension packages, it would add these packages to the asset manager as well - allowing the asset manager to locate and load the extension resources. (This would require a platform extension.)If this is a way forward - using the 8 package bits in the resource identifiers? This solution would probably work initially for one vendor since the allocation of unique package identifiers would be an internal issue, but if extension packages where to be exchanged within the android community there would be a high risk of packages using the same identifiers.
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May 7, 2009
I'm in a situation where I have to share some resources (i.e. images) between several of my apps and I'd like to know if there's a standardized and convenient way to do this besides the system-wide Media Store. The reason I don't want to use the MediaStore is that the resources are rather low-level (e.g. icons) and thus the user wouldn't be interested in them cluttering the MediaStore.
As I see it there are three ways to share the resources:
1) Store them in the global MediaStore. 2) Put them on the SD card. 3) Implement a custom ContentProvider for this kind of shared resources.
I like how a custom ContentProvider would encapsulate the way the data is stored, but it seems to be a bit of unnecessary overhead to achieve this. Writing to the SD card is convenient, but rather low-level. Are there any other options suited for this problem?
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Jul 27, 2010
I have written an application in eclipse to run on android emulator but the application is not deploying on emulator and it says Failed to load properties file for project helloworld. in the error report it says An exception for stack trace is not available. I am not able to understand what to do as i am new to android. Please help me to find d sol for this problem.
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Dec 8, 2009
I am getting below error when I try to upload apk file with AVD version Level2. Can't dispatch DDM chunk 46454154: no handler defined
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Aug 2, 2010
I have developed an App that talks to a set of web services. Because the App is used in different environments and for different purposes, I would like to provide a way to automatically deploy a configuration alongside the App that contains the settings for the environment (url of the locally hosted web services for example) and App settings (such as a timer period for talking to the web services). It would be tedious to have a UI for this and have to do it on every device post installation. Things I have tried and why they didn't meet my requirements:
*Raw Resource: If I unzip the apk and change the settings file, it becomes invalid as I need to resign the apk.
*Reading straight from the apk with ZipFile/ZipEntry: Device complains upon installation that the config file is not signed.
*PreferencesActivity: Requires device side UI; It would be tedious to have a UI for this and have to do it on every device post installation.
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Nov 12, 2010
I have to make other developers to be able to connect to my service, but my AIDL imports my classes. I don't want to give them the source code of the service, just the APK and some kind of a stub file (java, jar?). How can I give them something - "the glue" - which makes them to use the classes in my AIDL and using the service akp without getting the sources of the service?
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Jul 11, 2010
In my Android project, I want to loop through the entire collection of Drawable resources. Normally, you can only retrieve a specific resource via its ID using something like:
InputStream is = Resources.getSystem().openRawResource(resourceId)
However, I want to get all Drawable resources where I won't know their ID's beforehand. Is there a collection I can loop through or perhaps a way to get the list of resource ID's given the resources in my project?
Or, is there a way for me in Java to extract all property values from the R.drawable static class?
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Sep 17, 2010
I am using the "Mock location" apps in there. That is interesting and would like to share here.Propagation Systems Limited - Android Apps
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Oct 14, 2010
I need to add few shared libraries to the andriod as part my application installation. Can you please suggest right information resources regarding the same.
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Oct 10, 2010
My wife and I both have Android phones (EVO and Samsung Transform) and have the Google Calendars shared. All of the sudden, her calendar is completely empty and can't see mine anymore.But on mine, I still see all of her events and see it listed as one of my Calendars both in Google Calendars and on my phone.Everything looks perfect on my end but everything is back to square one on hers.Any ideas how to restore her calendar or what may have caused it.I am afraid that just starting hers over is going to start duplicating events in mine.
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Jul 5, 2010
I am building application related to WiFi using my Samsung Android Phone.Am trying to access the pre shered key to my application using WifiConfiguration class provided by Android. The getPreSharedKey() method returns only "*" if key is present and null if the key is absent.I need the actual the pre shared key. How do i obtain it?Is there any other method that I can use to get the key?
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Nov 5, 2010
I am trying to have 2 applications which can access each other's data.I have a two test applications which I am experimenting with.I set the 'Shared user id' for each to 'com.gabysoft.sharedfiles'.However, when I sign the first app and try and install it, I get the error:
11-05 16:50:33.422: ERROR/PackageManager(61): Package com.gabysoft.sharedfiles1 has no signatures that match those in shared user com.gabysoft.sharedfiles; ignoring!
Clearly, I am not signing it correctly (I am using Eclipse's "Export signed application package" function).How do I properly sign the .apk file so that I don't have this problem?
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Jul 28, 2010
I want to know how we can use shared pref in different application.
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Sep 6, 2010
Does Android provide smth. like that OR do I have to check every time during start of my app "Oh, am I freshly installed? Do I have to initialize the Shared Preferences now?"
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Oct 29, 2010
I have a user preference in my app, which gets ued by different activity. I would like to know the best way to utilize those preferences between different activities in my App.
I have this idea to create a shared preference object from the main activity and from there send intents to the different activities to take actions. would it work?.. or just keep calling getsharedpreferences() from every activity?
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Apr 22, 2010
I am developing a library for Android applications which does not use native code (JNI). I have tried suppling the library as an external jar in my Android projects but this method does not include the library contents in the apk and thus throws class not found errors when run in the emulator or device. I have also tried creating the library as an Android project in itself and this does work, but only for public static properties (not methods). With the library and application both being in separate apk's I can see that the VM notices references to the library and can read some properties, but when an attempt to instantiate a class in the library is executed I get class not found even though I can read the public static properties from it.
I realize that Davlik byte code is not the same as Java byte code but I am having trouble even finding good information about how to solve what would seem to be a very simple issue in Android. I am looking into the old PlatformLibrary stuff right now but I am not convinced this will work either since the sample has been removed from the Android site.
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Jun 25, 2010
Im wondering if there is an app or anyway to set a shared folder on the Evo's SD card that can be seen over wifi to drop files in? I have dropbox and IO Filemanager but that's a lot of clicking to move stuff out of the dropbox. I was hoping someone knew of an app that would setup a share over wifi.
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Oct 26, 2009
I'm trying to create a shared lib written in c++. I followed all the steps which are recommended to create the shared lib and to access the native code in Android. But so far I couldn't succeeded in loading the shared lib on device or emulator. When I tried to load the lib by:
static{ System.load("/data/data/com.android/libnative.so");}
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Jul 22, 2010
I have a doubt, I don't know how to retrieve the key from the shared preference?
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Mar 31, 2009
I currently have a few classes that are called by an activity (some statically) in which I want to use a string resource. I tried: Resources.getSystem().getString(R.string.mystring), but am getting an error. It seems as though you can only use this within an activity.
Is there anyway to use a project resource in a standard (non Activity) class without having to pass the resource object from the activity calling the class?
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Oct 18, 2010
I have an app with 2 Activities and an IntentService all which need to access the same SQLite Database table. What's an appropriate pattern to use?
Should I create a ContentProvider that manages access to the database, ie opening/closing, querying, updating etc. And have the 3 clients all access the DB via the ContentProvider?
Or is it OK for each client to access the DB directly? This is the approach I have now and it seems to be working, but I need to close my cursor and the DB after executing every statement or I start generating stacktraces in the log about unclosed DB resources. But closing the DB after each statement seems wasteful and I suspect that this approach will always be susceptible to the stacktraces because there is always the potential for collisions between either of the Activities and the IntentService.
I haven't been able to find any good resources that show DB usage in full. It always snippets that miss out the *obvious* piece such as when should the resources be closed etc.
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Feb 13, 2009
Anyone was able to play a video included in the .apk? I'm able to play this video from the SD card but not when it's a resource.
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Apr 20, 2010
I'm thinking at putting a .txt file in res/drawable or in res/layout to have it in the apk when the application is packed, and then after install to open and read from it to perform some tasks . Can this be done ? If yes please let me know how can I access the file ,as I don't know it's path .
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Sep 10, 2010
I'd like to use the RandomAccessFile class to access a file that ships with my application. However, that class only accepts a String which is the path to the file. If I place my file somewhere like the assets directory, how do I construct a path to that file? I know I can use the getAssets methods to read up resources, but those only return InputStreams which cannot be seeked.
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Nov 8, 2010
I'm developing an Android app for which we will be selling separate content in the Android Market. Since Android lacks an in-app purchasing model as iOS has, I have come to understand that this is the ideal way of selling additional content (but NOT functionality) for Android apps.
So the question is, how do I actually load raw resources from other Android apps, assuming that I know the exact name of the resource, app ID, etc.?
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Nov 22, 2010
Is it possible to share resources across APK's? For example, can application A (in APK A) load an icon or layout view from application B (in APK B)?
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Aug 24, 2009
The question boils down to whether phone manufacturers are required to keep resources that are available in SDK intact. Say, will android.R.drawable.ic_menu_preferences be the same file on any phone?
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May 18, 2010
In J2ME, I've do this like that:
getClass().getResourceAsStream("/raw_resources.dat");
But in android, I always get null on this, why?
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May 7, 2010
For example code...
How can I get the resource by its name?
Without using R.raw.yuri = (int)
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Feb 21, 2010
Need some advice from you experts out there. I've just started with Android programming and while I finally got what I want my "Hello World" to do, I feel as if I'm bludgening my way through rather than grasping concepts. I created three EditText boxes. Below those I created three Spinners. Pick a number in the Spinner and it will show up in the corresponding EditText box. Spinner 1 correlates to EditText 1, Spinner 2 to EditText 2 and Spinner 3 to EditText 3. I had a hell of a time getting this to work. I do have some cleaning up to do. Is there a better way to pass or reference resources around various classes?
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