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?

Android :: Sharing Database between Applications


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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 :: Sharing SQLite Database Between Activities

Jun 24, 2010

I'm in the middle of writing myself an app and have run into a problem concerning the use of the same SQLite database within multiple activities.

I have one activity that is used to input and store data and multiple activities that need to then read that data. Within the first activity, it has no problem inputting the data into the database, but when I go to have the other activity read the data, it tells me the database is empty. Obviously I'm doing something wrong in my handling of this shared database.

Right now, I have a DataHelper class that handles everything. In each activity, I create a DataHelper object which then calls the openOrCreateDatabase() method. I then close the database upon exiting the activity. Obviously this isn't the right way to do it.

So, my questions is, what is the correct way to set up an SQLite database in an Android application and then access it in multiple activities?

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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.

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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 : 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 :: Sharing Sqlite Database Between Multiple Android Activities

Oct 12, 2009

Can two or more Android Activities open an sqlite3 database for write?

I have two Activities that need to insert data into the same sqlite database. When the second Activity calls SQLiteOpenHelper.getWriteableDatabase() an IllegalStateException is thrown with the message "SQLiteDatabase created and never closed".

I've been able to avoid the Exception by making my database object a singleton but I'm thinking there must be a better way.

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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 :: Wordpress Database Access In Mobile Applications

May 9, 2009

I am new to wordpress and I want to create an interface for being able to access my database hosted on wordpress in my mobile applications - particularly iPhone and Android.As these do not directly access SQL databases and would need routines on the server-side for being able to do so, what would be the best way for me to go about writing these routines/web-service calls?Are there any wordpress plugins available for this? If not, what language should I use - php or something else?

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Android :: Possible To Use The Google App Engine As A Backend Database For Applications?

Dec 20, 2009

I would like to write a client application for Android that uses the Google App Engine as a database backend. My Android client would connect to the App Engine to save information, then it would connect later for reports. Is it possible to use the App Engine as a backend like 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 :: Android Should Provide Remote Database Access For Applications

Sep 19, 2009

The idea is to allow developers to access a remote database provided by google.In android the developer will need a special permission to be set at the manifest file.This could allow applications to keep a backup of users application data without having to sign in ever, seamless.Users could than sign-in to their gmail and see a list of applications that are currently storing data on their gmail space.The user could be allowed to wipe the data or even block the application from storing data to it.This idea make the most sense since Android will be a platform were users will be constantly changing android phones as new better ones come out.

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Android :: How To View My Android Applications Database Information?

Aug 16, 2010

I've tried to view the db file from the File Explorer in Eclipse but I can't open the file or copy it to another location to open. I don't have a rooted phone so I was trying to view the db from the app on my emulator. I find it hard to find much info on this subject for some reason.

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Android :: Connect To Remote Database Online Database

Nov 8, 2010

ive been looking for a week now i need some help connecting to a remote database...i want my app to get data out of the database and update the database.ive tried this http://www.helloandroid.com/tutorials/connecting-mysql-database but i dont understand it.

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Android :: Full Android Database Class For Existing SQLite Database?

Aug 23, 2010

I'm trying to deploy an application with an existing SQLite database.I've been reading though the examples that are posted but they are always missing some part of the class. I feel like I'm trying to bake muffins but no one told me to use baking powder.Can someone post a full database helper class for depoying an SQLite database on Android? Edit : Delete old code because it doesn't work.

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Android :: Synchronizing Sqlite Database On Android To A Sybase Database On Server

Apr 12, 2010

I'm currently developing a Field-Service application that stores data in the local sqlite database on an android device. At some point, usually after completing the data collection rounds, the local sqlite db is to be synchronized to a remote sybase db on the server.Any suggestions as to how this could be achieved or engineered as a solution? Or even better, are there alternatives to synchronizing data in such an application?

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Android :: Regarding Database Schema Of Android Native Database

Nov 1, 2009

I want to build my own cloned databases of all or some of the Android native databases like Contacts, Calllogs, Mediastore, Settings, etc. I want to know wheher it is possible and How I can know the database schemas of these databases? Is there any documentation on this?

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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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