Android :: Two Applications Sharing / SharedUserID

Sep 1, 2009

I have two applications in the field that share the same sharedUserid.What I just found out was that there is a bug in Android, where un- installing one application removes permissions from the other application also - thereby rendering the other application useless. Looks like this bug has been reported before : http://code.google.com/p/android/issues/detail?id=2773 This is a critical bug.Is there a workaround or a tool that can be provided to the user to recover back to a working version. Un-installing and re-installing the the application to start from scratch is not a acceptable option for our users,they stand to lose a lot of valuable data.

Android :: Two applications sharing / SharedUserID


Android :: Sharing Database Between Applications

May 15, 2009

Anybody knows if we can share databases between applications? How can I access to a database from an A application to another B application? It is possible? What URI I would have to put?

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Android :: Sharing Elements Between Applications

Jun 10, 2010

Here's a quote from Android's Dev Guide: A central feature of Android is that one application can make use of elements of other applications (provided those applications permit it). For example, if your application needs to display a scrolling list of images and another application has developed a suitable scroller and made it available to others, you can call upon that scroller to do the work, rather than develop your own. Isn't it a bad practice to make an app dependent on other apps?

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Android : Sharing Database Across Applications

Aug 11, 2009

What's the most convenient way to share a database across applications? For example, I want my application's dbadapter to query the android's native contact database so when a contact on the phone is deleted, similarly that contact is removed from my application. Should i use an attach statement to attach the table? Or would the better/more secure approach be to create a custom contentprovider query onCreate of my app to verify all contacts in my application still reside on the Contacts.db.

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Android : Want Sharing Code Between Applications

Jul 24, 2010

I want to create a "main" service/application which will provide different functionalities to other applications. According to android docs I can use elements from an application/ service in other. "A central feature of Android is that one application can make use of elements of other applications (provided those applications permit it). ...". There is any examples/documentation on this direction? TicTacToeMain/TicTacToeLib example is not helping me because it seems "TicTacToeLib" will be embedded in final TicTacToeMain apk file. Also I want to ask if is possible to detect if "main" service/ application is missing (if is missing I want to tell user to install it, or to install it automatically).

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Android :: Sharing Code Between Applications As In Eclipse

Aug 26, 2010

I have ten, possibly more, apps I'm developing that all share logic. 50-75% of the logic is the same - perfect for some time of library or code sharing. However, after reading the posts here and trying to share code in Eclipse, I'm not sure that's going to work. I tried going to project -> properties -> build path -> link source and adding the src and gen folders of the project with the shared code and then importing the classes I need. That seems to work in the IDE, but gives an error during runtime: class not found. This seems to be a common error for people attempting this.

I am slowly deciding that shared code is not the best approach in this scenario. Android doesn't seem to work well with this type of code sharing. For one thing resources are not packed in libraries, but references (R.whatever) must exist so as not to create errors. This can be designed around, but the effort and headache is probably worse than simply creating multiple copies. My experience seems typical, based on what I've read. Is it? Have you experienced success or failure with sharing code and/or custom libraries? Am I off-base in thinking that multiple code copies will be smoother sailing than fighting the shared code approach?

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Android : Sharing Common View Layouts And Resources Across Multiple Applications

Jun 2, 2009

I am working on developing several individual android applications. We had created common UI Layout View XMLs, classes and resources. I would like to share these common layout xml, classes and resources across all of my android applications. I dont want to duplicate them in my applications. Is there any easy way to do this?

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Android :: Resource IDs And SharedUserID

Jul 20, 2010

If I am not wrong with the way android:sharedUserId is intended to work, then my question is how to avoid overlapping resource IDs? appt seems to aways start IDs at the same initial value (i.e. drawables at 0x7f020000), so there will be sort of conflict or ambiguation. As for now I failed to get that cleared w/o digging in OS sources. Or I miss anything, like magic "undocumented" appt option (not that aapt is documented at all)?

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Android :: Select Android Applications Sharing Data Without User Notification

Sep 30, 2010

Come one, come all -- let's gather and act shocked, shall we? It's no secret that Google's Android Market is far easier to penetrate than Apple's App Store, which is most definitely a double-edged sword. On one hand, you aren't stuck waiting a lifetime for Apple to approve a perfectly sound app; on the other, you may end up accidentally downloading some Nazi themes that scar you for life. A curious team of scientists from Intel Labs, Penn State and Duke University recently utilized a so-called TaintDroid extension in order to log and monitor the actions of 30 Android apps -- 30 that were picked from the 358 most popular. Their findings? That half of their sample (15, if you're rusty in the math department) shared location information and / or other unique identifiers (IMEI numbers, phone numbers, SIM numbers, etc.) with advertisers. Making matters worse, those 15 didn't actually inform end-users that data was being shared, and some of 'em beamed out information while applications were dormant. Unfortunately for us all, the researchers didn't bother to rat out the 15 evil apps mentioned here, so good luck resting easy knowing that your library of popular apps could be spying on you right now.

Update: A Google spokesperson pinged up with an official response to the study, and you can peek it after the break.Update 2: Looks as if the full study (PDF) has been outed, with the 30 total apps named. Here they are: The Weather Channel, Cestos, Solitaire, Movies, Babble, Manga Browser, Bump, Wertago, Antivirus, ABC - Animals, Traffic Jam, Hearts, Blackjack, Horoscope, 3001 Wisdom Quotes Lite, Yellow Pages, Dastelefonbuch, Astrid, BBC News Live Stream, Ringtones, Layer, Knocking, Barcode Scanner, Coupons, Trapster, Spongebob Slide, ProBasketBall, MySpace, ixMAT, and Evernote.

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Android :: SharedUserID / Safe To Change When App Is Already In Market

Jul 15, 2010

For the next version of our application, I want to change the sharedUserId since we now use an internal control dashboard app which must write to the other app's settings files.But since the app is already installed on many phones, will this be a problem? I ran a little test on the emulator, and I'm seeing exceptions in the device logs that *.bak versions of the preference files cannot be written. Not sure how critical that is. Curiously, safing settings still seems to work, even though the shared_prefs folder had been created using another Linux user ID.Did anyone try this before?

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Android :: Updating Permissions For Apps That Modify SharedUserID

Oct 6, 2009

I'm looking to update my app and provide a sharedUserId as part of my manifest, so that the several apps I have can all nicely look at each other's private files if necessary. Unfortunately, I've discovered that adding a sharedUserId where it did not exist before will change the userId and make me unable to modify current existing files.Is there a graceful way to handle updating your sharedUserId now that I need its functionality? Or am I pretty much resigned to requiring people to uninstall and reinstall my app to be able to do this?

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General :: Sharing Google Play Account Without Sharing Everything Else?

Sep 19, 2012

I have my Google account also setup on my wife's phone so we can share purchased apps. However, everything else is shared too. For example, even though I have sync for everything on my account turned off, my calendar still showed up on my wife's phone until I disabled it in the calendar app. Also, I can't remove my Google Talk account from her phone so my messages show up on her phone.

This is on a pair of stock Samsung Galaxy S3 phones.

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Android :: HTC Evo - Internet Sharing Via USB

Jul 22, 2010

When I plugged my phone into my computer (Mac) to move music on to it it came up with the option to charge only, HTC sync, Disk drive, and share Internet. I know that with Sprint you can pay for the Mobile hotspot app, which in my opinion is way to expensive, so I was wondering if the USB sharing is free or if it is bundled with the mobile hotspot add on.

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Android :: Sharing Internet

Jun 7, 2010

When connecting through USB my HTC Desire, I am sometimes asked if I want to share the Internet. The fact is that it would try sharing HTC Desire's internet to my computer, but it has here no interest, as the opposite is most current for me. Is there a reverse implementation of this as an Android GUI?

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Android : Need GPS Sharing App To Website

Nov 22, 2009

I was wondering if anyone knew a good GPS sharing app for the Droid so that my family can follow along with me on my trip back from college. I take a bunch of different people back with me, and figured if there was an easy way to share my GPS location (constantly refreshing) on a website for their family along as well.

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Android :: Web Applications V/s SmartPhone Applications - Iphone - Windows Mobile - Android -Nexus Application

Jan 14, 2010

Q: How does Web Applications differ from SmartPhone Applications (Iphone, Windows Mobile, Android/Nexus Application) and in what specific aspects do they differ and in what degree ?

Also for example,

Q: Why we need mobile version of Web Application like gmail.com or bankofamerica.com specifically for smartphone devices where we can access same web applications on smartphone using internet connections ? In what aspect do they differ and why do we have those differences ?

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Android :: Calendar Sharing Between Two Phones

Oct 9, 2010

I have a HTC Incredible and my Fiancee will soon be upgrading to an Ally. I want to share my calendar on her phone, and vice versa. In essence I want my entries to show on her phone or hers on mine so we don't set appointments or end up with conflicting events. I know people have done this, but I'm just not sure on the steps needed to do so.

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Android :: Sharing Data Between Activities

Apr 7, 2010

I was playing a bit with adapters cursors and activities. Let's assume i have a cursor containing a query I've made (it doesn't matter if it's to DB or content provider). Now lets assume i bind some of the data (first two rows) to a list activity. Every click on one of those items should open a new list activity (i pass on the cursor index in the activity bundle). Now the question is, which sharing method will be most efficient and right from code point of view ?

1. I thought of trying to send the cursor object in the intent itself (hoping it implemented runnable) but I'm not so sure it's that efficient since the query may contain many rows which will need to be parceled, and i the other intents uses only a few (say 4-5 columns of each row) it's a real waste.

2. Thought of trying to create the array list for my other list screen adapter and serialize it to the intent (again use serialize and intent to pass on the data) but again i fear for efficiency penalty.

3. my last solution was to use static cursor member in my first activity, with package permission, it will work and be relatively efficient, but I'm not so sure regarding memory efficiency and code structure, i'm not fond of using static variables in any case.

Is there another sharing method that i don't know off, if two activities share the same process and application, then they also share memory space, then it should be easy to pass variables from one to another, the question is what's the easiest way without serializing ?

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Android :: Sharing Data Between Tab Activities

Aug 10, 2010

I did some digging, but couldn't find a clear answer. I have an application with TabActivity as the main activity. I have some computing and network communication that needs to be done when user clicks on the big red jolly "DO IT" button. One tab hosts the form with "DO IT" button, while the other tabs display the results from computing (each tab displays different part of results). The computing is done as AsyncTask as it's supposed to be (afaik).

Now the question is, what is the best way to share the results between the tabbed activities? It can be done with ContentProvider + database from what I have read, although that seems like a bit too much for my needs. I have also considered an option to save the results to some cache file activities could read in onCreate, onResume etc and display the data. Are there any other convenient ways to share the data? (To make it more clear, the data aren't simple, so doing it through preferences etc is impossible.)

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Android :: Sharing Data Across Activities

Mar 13, 2009

I was looking out for ways to share data between various activities that one may need to create for his applications . Using "Parcel" and Bundle one can do data exchange , but looks like this is a bit cumbersome process specifically if you have to share large array objects with too many fields.

As android.app.Application maintains global state for the application , we can use this class to store global data and access it across activities. Is this a good way ? Are there any implications on allocating large objects in the your class which extends from android.app.Application ?

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Android :: Sharing Code Between Activities

Oct 7, 2009

I have an app with two activities.

Both activities among other functions have to perform the same calculation on data, so each activity include the same code to perform the calculation.

Is it possible to only have the similar code in a separate activity and be accessed by the other two activities instead of duplicating the code twice?

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Android :: Sharing Cursor Between Activities

Nov 21, 2010

I think the following scenario is common, but I can't figure the way to implement it:

We have three Activities, and one database. We ask the user for an input to search in the database. The query should get none, one or may results.

If you get none you simple inform the user.
If you get only one, you show it in a new activity with the right view.
If you get many you show them in a list to let the user to chose the right one and then you pass that to the activity which with show the data in the case of one result only.

The problem is that, in order to know the number of results, you need to do the query (and get the cursor) in the first activity. And in the case you get more than one result you need to send the data (pass the cursor?)to the list acitivty. Doing the query again in the list activity can't be right, right?

I'm aware that you can share cursors by using a content provider, but as the activities are from the same application and the data is private (useless outside), don't see the point of making it avaliable to anyone else.

I read here around that you can crate a parcelable cursor and send it in bundle, but I'm not sure if that is the right use.

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Android :: Sharing An Object Between Activities

Nov 24, 2010

I have a Weather app with four Activities. The main/launcher activity is 'invisible' using...

android:theme="@android:style/Theme.Translucent.NoTitleBar"`

Aand is simply used to do a few checks (whether this is a new install, whether a network connection is available etc) before firing off one of the other Activities. The other Activities are UI-oriented - two simply display weather data pulled from a website and the third to provide a location 'picker' so the user can choose which area to show the weather for.

However, all four activities make use of a WeatherHelper object which basically does everything from checking for available SD card storage to maintaining preferences and pulling/formatting website pages.

So, my question(s)...what is the best way to have one instance of WeatherHelper which can be used by multiple activities and where/how are best to create it in my case?

I've been an OO programmer for a lot of years but I'm very new to Android and the design concepts - I've read a lot on the Android Developers site over the past weeks but I've stalled trying to decide on this.

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Android :: Sharing Data Between Users

Aug 25, 2010

I'm writing a game that includes an editor for users to create their own levels. I'd like players to be able to share the levels they've created with other players. I'm trying to figure out the best way of implementing that, and hoping for any advice on the subject.

One obvious option is to set up a server for sharing levels. The game would connect directly to the server to let players share their creations or download levels created by other players. This provides seamless integration and a good user experience, but I'd really prefer not to use this approach. For one thing, I don't want the cost and responsibility of setting up and maintaining the server. And I would be taking on a basically unlimited obligation; otherwise, if I decided to shut down the server a few years from now, the game would suddenly lose a large part of its value.

Another idea I had is to use the Android Market as the way to distribute sets of levels. That way, Google is taking care of running the server for me. Clearly there are programs that work this way, since I've seen lots of themes and expansion packs for particular applications in the Market. While this could work, I'm not very happy with it. Asking an ordinary user to sign up for a developer account on the Market and learn how to post files through it is unreasonable, not to mention they would have to pay $25.

The approach I'm currently leaning toward is allowing levels to be exported as ordinary files. People could then just email them to each other, post them on any website they wanted, etc. Ideally I would want to set up a file type association so they could simply open an email attachment or click a link in the web browser, and my game would automatically be launched to import it. I haven't yet looked into whether that's possible.

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Android :: Sharing Data Between Tabs

Jul 21, 2010

I am getting some glitches while making a tab enabled application.

I want to share data, between two tabs of mine application.

How can i achieve the same.

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Android :: Sharing Machine For Development

Dec 10, 2009

We have a fast and powerful machine(Ubuntu 64bit) and we are sharing it for Android development. But when running multiple eclipse (with ADT) instances (by multiple users), we are getting the following error:

Could not open Selected VM debug port (8700). Make you do not have another instance of DDMS or of the eclipse plugin running. If it is being used by something else, choose a new port number in the preferences.

And some of the process names are not shown. It shows a bug with red- circle and a question mark instead.

I tried to change the port number under windows-preferences-Android- DDMS-Base local debugger port to 8800, etc. but it does not seem to help. (closed and reopened eclipse)

I ignored this, selected the process and it shows 8607/8700 (I found the process ID I want to debug using adb shell, ps)

And then I tried debugging this. It throws "failed to connect to remote VM"

Is it just not possible for multiple developers to debug different Android applications using multiple eclipse instances at the same time? If it is possible, can somebody please tell how we can do that?

BTW, it did not allow me to launch emulator, while somebody else is running one. I had to change permission to /tmp/android folder.

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Android :: Favorite Photo Sharing App

Dec 10, 2009

What is your favorite photo sharing App?

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Android :: Sharing Data On Two Apps

Oct 20, 2010

I am new in android development. i was wondering if i could share some data between two applications in android. One way is to place the text file on SD Card but i dont want to do this.Second way is to place in data folder, and i dont know how to.3rd way is to place the data in shared memory so both applications can see it.also i dont want the user to see or delete this file,only my two applications can change this file or data.Please help me.I've been wondering on this for 2 days.

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Android : Sharing With Facebook Is Not Working

Sep 8, 2010

I am using the following code to launch chooser for sharing Intent sendIntent = new Intent(Intent.ACTION_SEND); sendIntent.putExtra(Intent.EXTRA_TEXT, message); sendIntent.putExtra(Intent.EXTRA_SUBJECT, "MyApp"); sendIntent.setType("text/plain"); try {activity.startActivity(Intent.createChooser(sendIntent, null)); } catch (ActivityNotFoundException e).

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Android : Sharing Gps Stuff Between Several Activity

May 11, 2010

I found myself using the same code for accessing to gps / cell location stuff from a couple of activities of my application. What I was wondering now is, which is the best way to avoid code duplication? Should I use a superclass for the activities which implements that kind of stuff? Use an helper class? How do you deal with this kind of problems? 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+unsubscribe@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en

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