Android : Sharing Apps By QR Code?
Dec 22, 2009
Fred meets Bob at the pub and shows off the latest app he's installed.Bob likes it and wants to have it on his phone, too. Q: What's the best way for Fred to help Bob install an application? Hint: On a Palm, Fred would just 'beam' the app to Bob's pda (we're assuming that it's a freely downloadable app, not requiring payment or registration). On an Android phone, can Fred somehow share it over Bluetooth, or display a QR Code for the app so that Bob can use his Barcode Scanner to get it from the Market (or slimeme.org, or wherever)? As far as I know, no file manager has a "display barcode" function (like Contacts does when you have Barcode Scanner installed), so I'm forced to describe the app, or go into the application list and dig out its "com.vendor.app" name. This seems decidedly un-slick.
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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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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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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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Jul 2, 2010
I have an Android application composed by several Activities. Most of them need to check whether an active network is available or not:
public boolean isNetworkAvailable() {
ConnectivityManager cm = (ConnectivityManager)
getSystemService(Context.CONNECTIVITY_SERVICE);
TelephonyManager tm = (TelephonyManager)
getSystemService(Context.TELEPHONY_SERVICE);
...
}
I would like to move that code to a helper class in order to avoid the need to write that code in every Activity, but calls to getSystemService are only allowed from an Activity. The other alternative is to move that code to a parent activity use inheritance but:
Every activity already extends from android.app.Activity
Some of my activities already extend from a common my.package.BaseActivity
(Activity <- BaseActivity <- XXXActivity)
What do you recommend in this case? Is there any other alternative?
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Nov 12, 2010
I've recently noticed that on both the HTC Magic (aka MyTouch) and Samsung Galaxy S it's possible to share contacts details via QR Codes.Both the aforementioned smartphones had the latest Barcode Scanner (by ZXing Software) installed. It's simply a matter of going into the address book, hit the menu button and select the "share contact as barcode". As a result, a fullscreen QRCode is displayed containing all the relevant details of the selected contact, ready to be scanned and saved by another smartphone.Now, why can't my Desire do the same?I have Barcode Scanner 3.51 installed, but the "share as barcode" options is nowhere to be found in my address book/contacts list.The only workaround I found is to share contacts directly from inside B.S., but (other than being slower) this method shows non-grouped contacts which is a PITA.Is this a Sense-related matter?What about yours?
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Feb 19, 2009
I wanna to add some code in Camera Apps code , so that it will invoke my Application and do the thing as per my desier. Is it possible to change the Application code? If any one already tried this then plz let me know, how to proceed and build if i change some code. How to integrate my application with camera apps.
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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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Nov 24, 2012
Is it possible to share apps installed on the device across multiple users?
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Sep 30, 2010
BBC News - Google Android apps found to be sharing data
Quote:
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Jun 11, 2010
I'm new to Android with a HTC Evo and was curious about the app system of Android. The paid apps for the Android are they shareable? I was wondering if that was possible like how Apple let's you authorize 5 different computers to transfer your app purchases to others. Does the Android Market have that ability or do you have to buy it separately by each phone? I've searched the forums, but nobody seem to have an answer. Was hoping some of you veteran android users, would know.
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Sep 8, 2010
I'm moving away from strict Android development and wanting to create iPhone applications. My understanding is that I can code the backend of iOS applications in C/C++ and also that I can use the NDK to include C/C++ code in Android apps. My question however is how? I've googled quite a bit and I can't find any clear and concise answers.
When looking at sample code for the NDK, it seems that all the function names etc. are Android (or at least Java) specific and so I would not be able to use this C/C++ backend to develop an iPhone frontend?
I'd appreciate some clarification on this issue and if at all available some code to help me out? (even just a simple Hello World that reads a string from a C/C++ file and displays it in an iOS and Android app).
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Jul 16, 2010
i have a requirement where i need to run multiple applications simultaneously sharing the same screen space at one time. For Ex. one part of the screen might be displaying a youtube video, while to right of it, the user might be chatting with his friend, and below some application download progress...
In Short, different applications sharing same screen.I guess this has already been done as i when i google for droid tablets, i can see images that show multiple apps running simultaneously, displayed side-by-side to each other. how it can be done and if i can simulate it on ADT and AVD?
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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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Feb 19, 2009
I wanna to compile the apps code, has any one tried it earlier, if so lemme know. How to compile the camera and calender code.
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Nov 24, 2010
We all know that Android runs Dalvik VM programs. Normally developers write programs in Java and they compile it to Dalvik bytecode. I wonder if it would be possible to create a compiler that can take C# code and compile it into Dalvik bytecode.
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Mar 22, 2010
I have two question to put forward:
I was very interested, even intrigued by the Maps application on the android emulator. Where can I get the source code for it?
There is a Maps Editor on the Android Market, it cannot be downloaded to the emulator. But again, where can I find the source code to that?
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Apr 15, 2010
I need to build several slightly different apps from one code base, where only the styling and some variables are different in each app.Right now I use an awful "Constants" class where I comment in/out the correct values for each app, in addition to copying the correct graphic resources to the res/drawable/ folder.One way to make this less painful would be to refer to a Java static Constants#appVariant from styles.xml and splash.xml, e.g like this pseudo-entry:
<style name="Artwork"> <item name="android:background">@drawable/ border_{Constants.appVariant}</item> </style>
Is this possible?And I guess there are better ways of solving this.All hints are appreciated!
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Nov 12, 2010
I saw the code of starting other apps from my app.but i understood little bit ..i need some detailed ebooks on intents and start activity ON ANDROID...
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Jun 1, 2010
I once got pointed in the direction of this great set of examples:
http://code.google.com/p/apps-for-android/
These samples look like they're in some way connected with this forum. Is that the case?
There's one app in particular which I would like to discuss with the developers, the 'SpriteMethodTest' app, as I have adapted this for my own use and have some issues.
Anyone know anything about these apps?
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Jul 15, 2010
We want to develop an application which should be the only one our users should use. So we need to PREVENT them using other applications. (Mainly to make the maintenance support possible - we plan to buy at about 1000 phones, so the maintenance is tough task!) Is there any way to restrict the users?
For instance, is ADW Launcher able to do such things? Or is it possible to achieve this by coding our specific replacement of Home Launcher? And what about using some ASE scripts?
I am a beginner to Android OS, please do not assume any specific knowledge in your possible answers.
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Sep 17, 2009
I've synced my android repository just after android sdk 1.6 announced, but found some problem to install my apps with native code (so built by NDK 1.5_r1) then.
I tried to build NDK with the latest source code, bu unfortunately, faile again :( .
So is there any way to get particular version of android source code? for example the android-1.5r3 tag. Would be great if some command like "svn switch /foo/bar/1.5r3" is available.
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Jun 17, 2013
I am building android jelly bean for my development board,I need to build google store apps with this image,but through research i came to know that google apps source code is not open source. In that case is there any way to get the google app source code? Do i need to purchase google apps source code or i must have to use only google apps apks provided by google.in the case if i have to use google apps apk only than what all licensing criteria i have to follow?
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Nov 8, 2012
I want to build some apps (like Camera, Gallery, etc.) from source code of CM. But I don't know how to do it. I have the source code synchronized with CM git.
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Sep 1, 2010
Been talking to Lekky and we have all these great things grouped into one thread. One important thread is side mounting the captivate. Things it gives you are SDK which can be downloaded for PC or Mac. Drivers again PC or Mac.
Then Root access no biggie
Busy box no biggie.
Then it goes into the CMD language for PC on how to edit the database file using CMD prompts to enable the sideloading of APKs directly on the phone.......................
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Jan 27, 2010
I can build a daemon with my algorithm code and main function.I put all files in one folder under /development and make This executable file works successfully
Now I want to separate my algorithm code and main function code. I hope to build a binary library with my algorithm code and main function will link this binary library to use.
Where to put my algorithm code to create binary library and how to link this binary library in main function code?
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Jan 22, 2010
I am trying to integrate my code to the android Home Screen code. I want to launch my activity frm the HomeScreen by click of a button. I Did the code & then build it but when i click the button i m getting error as Application not installed on phone.
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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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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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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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