Android :: Can I Save SharedPreferences To File So I Can Have Multiple Instances Of The Prefs?
Jul 19, 2010
I love how SharedPreferences work in android and I would like to know if there is an easy way to save them to another file so I could load a previous instance of the prefs and vice versa. Basically when you load this file, all the preferences would change to how you had it before at once. I want to be able to swap 3 or 4 different versions of the same pref keys in this way. Is there an easy way to do this?
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Feb 2, 2009
I am trying to launch an activity from another activity .. Within the com.android.SingleLauncher..
I have activity launch code as ..
CODE:...........
I have set the android:multiprocess="true" in the AndroidManifest.xml of TargetSL I don't seem to see the multiple instances of TargetSL, which i am expecting ..
All i see is 2 process, where i was hoping to see an instance of TargetSL, for each launch that was invoked by the singleLauncher!
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Sep 14, 2010
is it possible to run multiple instances of the same app on android? What I mean if the app does not support multiple identities is it possible to install it twice and configure each instance separately?
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Oct 12, 2010
I want to change the android sharedPreferences save path,the sharedPreferences save in /data/data/xxx.xxx.xxx/shared_prefs,i want to change path to /sdcard. how i do?
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Apr 15, 2010
I would like to do this, let me know if it possible in android?
App1 --> bindService() or startService() to AndroidService1 App2 --> bindService() or startService() to AndroidService1 (same service)
I would like App1 and App2 to get different instances of AndroidService1. Why I want to do this is say App2 doesn't need the service any more & it calls stopService() then App1 should still continue to work with its own instance of service app.
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Feb 19, 2010
I want to create multiple instances of an activity in the same process. Should I use FLAG_ACTIVITY_NEW_TASK flag like the code below?
CODE:...............
This code is executed in class A to create another instance of activity A.
This question, will this code create another task? As I understand is a process can only have one task. Does it mean the two activities will exist in different tasks? That's what I want. I want the two activities to be in the same process.
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Jul 1, 2010
I was wondering is it possible to create multiple instances of a single Activity in Android?
I currently start my own inCall screen for a Voip Test by using the following code...
This allows me to start the Activity fine. However when I call it for a second it just returns to the Activity already created rather than creating a new Activity and placing it on the stack.
I would like to be able to create the activity multiple times so that I have two or 3 Activities on the stack and the user can switch between them, using Home, Back buttons etc... Is this possible and if so what am I doing wrong?
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Jan 12, 2010
I've been attempting to use the <include> tag in some layouts and it seems that these are of limited use because of the flat namespace of the R.id.x approach.
Suppose I have a layout (attribs and xml namespace decl omitted for clarity).
CODE:.......
Now in my java code I have a conundrum. I am not able to identify each individual instance o f the children included layouts root view. In the include tags I can replace the root id with "row1" and "row2" so I can find the individual linear layouts using findViewById
eg:
CODE:.........
However, I can't easily access the two instances of the TextView which are children of row1 and row2 because all I have to play with is the single id "text"
ie:
CODE:..........
In this case, which instance (row1.text or row2.text) does this refer to, both of them, or none?
I guess I would need to use another means of accessing the children of row1 and row2.
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May 13, 2014
I'm wanting to install 2 instances of the same APK.The app is: Star Wars Force Collection..Once you install the app and login to your account, theres no way to change accounts without uninstalling / reinstalling and logging into new account.
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Jan 25, 2012
I was tinkering and editing an apk, and i managed to compile it and install it fine and it works and is suited to me. So i was wondering ( not too good with xmls ), is it possible to edit the manifest file to rename the apk so I can install multiple copies ( i.e. have the original unmodified one and the modified one at the same time ). I need this for testing purposes. Which lines do i need to edit exactly so the phone doesn't give me the "installing this application will replace the current..." warning, so I can multiple instances of it?
APKs are managed by package name, not by file name, but you can't simply change the package name in the manifest of a compiled APK.
Even assuming you manage to do it without messing up the file, which is not a simple task, there will still be code referring to the package name, so the app will crash.
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Feb 16, 2010
I added an intent filter to one of my activities, so that when a user clicks a URL like "www.mysite.com", and if my app is installed, my registered activity can be launched. It works well.
I see that this creates a new instance of my registered activity though, every time a link is clicked. Is there any way to prevent multiple instances from being created - just recycle an existing instance if one already exists?
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May 3, 2010
OK, here goes my first post.
I have the calendar syncing with my gmail calendar, which has multiple calendars inside (mine, my wifes, ours, baseball schedule, cavs schedule, etc..)
I also have the stock "mail" (not Gmail) application syncing with my exchange at work.
Since I got 7 home screens to work with, I wanna put my Gmail calendar on home screen #1, and my exchange calendar on home-screen #7. Sort of a seperation of home and work
So I put the stock widget on home-screen#1, and again on home-screen#7. But a widget is basically just a frontend for an app running in the background. When I go to home-screen#1 and select MINE, WIFES, and CAVS.......that selection affects the widget on home-screen #7 as well. I go to screen #7, tell it to display Exchange only.......and when I go back to #1, it is switched to exchange.
So.....any way to do what I want?
1) Have a calendar on home-screen#1 that shows my Gmail calendar(s)
2) Have a calendar on home-screen#7 that shows my Exchange calendar
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Nov 12, 2010
I'm struggling with my app that launches multiple instances of the same Activity using the same intent. My main activity is of class type A and it does a startActivity() of two children that are of the same class type B. So we have B1 and B2 launched. If B1 and B2 are both paused (by pushing back button and making sure finish() is not invoked on them so they are truly paused), how can A uniquely bring either B1 or B2 to the foreground again? I do want to launch a new B activity. I want to uniquely bring B1 or B2 to the foreground.
so both B1 and B2 were created like this... Intent intent = new Intent(context, B.class); intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); startActivity(intent);
Now I want A to bring B1 (or B2) to the foreground/front so I use the below code, but how do I distinguish B1 or B2 when starting the activity? This only brings the last instance of B that was on top to the foreground.
Intent intent = new Intent(context, B.class); intent.addFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT); startActivity(intent);
I've tried keeping around references to B1 and B2 and doing something like this, but this also only goes to the last instance of activity class B that was on top...
Intent intent = new Intent(B1context, B.class); intent.addFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT); B1context.startActivity(intent);
I even tried this, but it still doesnt get me my unique B1 or B2... Intent intent = B1.getIntent(); // i.e. the original intent that started me startActivity(intent); // still only brings to front the last B that was on top.
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Apr 2, 2010
Does somebody knows where the file with the actual stored SharedPreferences is located?
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Jul 22, 2009
I need to correctly be able to differentiate between emulator instances. I know it's easily done with real devices. With real devices, you can use getDeviceId or getLine1Number from TelephonyManager. With emulators, all the instances have the same device id, same subscriber id, and same line1 number. Is there a way to differentiate them? Using NetworkInfo, I can call the toString method and I get my ip and the port on the computer. The problem with that is that the port is always different. I would like something more stable. Like when you use "adb devices" in command line. Emulator #1 is almost always "emulator-5556" and emulator#2 is almost always "emulator-5554". Is there a way to get the same info I get from "adb devices" in my code? If not, is it possible to use a command line parameter to force the emulator to use a certain phone number?
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Mar 11, 2010
I've made an application for network monitoring "Myapp" under com.domain.monitor package and which contains a Prefs-activity . After that , I made a widget to let the admin keep an eye on hosts status "the information is presented as a graph in the widget" , also the widget has it's own package different of the Myapp's one & has a unique Prefs button ! (complicated Crying or Very sad , I know)
The Problem : Is there any way To run Myapp and show the prefs- acitvity by clicking on the widget's buttton !
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Feb 17, 2010
I've played around with my phone over the past month to the point where I've probably fubarred it. I know how I want my phone to be setup (finally) but I think I've introduced way too much bloat and un-needed garbage by installing-unintalling apps and roms.
Is there a way to reset the phone back to factory, but at the same time keeping my contacts and apps in tact? (Did that make sense?) So I basically want a clean slate without having to write down all my my apps and re-setting up my screens. I have Fresh 1.1 and Gumbo
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Feb 19, 2012
I want to add a feature to my app so i can backup so that the user can backup certain shared_prefs files of other apps (located in data/data/package,name/shared_prefs). I dont want to modify them, just backup and overwrite.
My app has root privileges.Ive tried this a few times but i cant get it to work, im just getting a file not found error when uploading.Ive tried mounting data/ as read/write but that didnt work or i did it wrong.
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Sep 22, 2010
Is it just me, or is there a missing option to specify what account you want to save your appointments that are created? It defaulted to my Exchange Active Sync, but... I wanted to save that appointment to my gmail calendar. =**[ I really hope that I'm just missing something, and that its possible. I just don't need my boss seeing when the next time I gotta take my dog to the vet!
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Jun 7, 2010
"Unable to save file to SD card due to insufficient file permissions."
This is the message I get when I try to take pictures. I have only taken 9 shots so far. There was no problem until yesterday when i tried to take the tenth. Did I do something to cause this? I am not that tech smart
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Apr 22, 2010
I am trying to find the best way to save files to the phone. Basically I have an XML file on a web server that I would like to be able to save on the phone. Should I create a specific folder in my project to save to and if so how do I save the file. Or should I make it to where when you click the Save button it checks for an SD card and if there is and SD card create a folder (if one isn't already there) and save the file in the new folder or save it to the phone? If someone could explain the most efficient way of saving files for my app and how to save the file from the web server I would greatly appreciate the insight. Any tutorial links would be awesome.
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Sep 9, 2009
I'm using org.w3c.dom.Document to create a document and I need now to write it into a .XML file. I saw tutorials referring the Java.XML.transform.Transformer package but this one is not available in the Android platform.
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Mar 16, 2010
I'm trying to use a standard Intent that will take a picture, then allow approval or retake. Then I want to save the picture into a file.
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Sep 2, 2010
Does someone know how to save and restore an object to a file on android ?
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Aug 15, 2010
I want to use a number of ShapeDrawables in my application, which are all similar, but with different colours etc. Obviously I could just define them all in separate xml files, but is there a more efficient way to have one xml definition, instantiate various objects and change the colour either in code or xml? You could perhaps do this by calling mutate() on one ShapeDrawable defined in xml, but this returns a Drawable, rather than a shape drawable.
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Sep 18, 2009
The configuration seem to allow it, however both widgets show up with the same label in the "widget list". I guess it may be a bad idea to do so as well due to shared space and multiple widgets needing to behave quite differently with different requirements.
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Apr 23, 2010
I am still not able to save a picture when I send an intent asking for a photo to be taken. Here's what I am doing:
Make a URI representing the pathname
android.content.Context c = getApplicationContext();
String fname = c.getFilesDir().getAbsolutePath()+"/parked.jpg";
java.io.File file = new java.io.File( fname );
Uri fileUri = Uri.fromFile(file);
Create the Intent (don't forget the pkg name!) and start the activity
private static int TAKE_PICTURE = 22;
Intent intent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE );
intent.putExtra("com.droidstogo.boom1." + MediaStore.EXTRA_OUTPUT, fileUri);
startActivityForResult( intent, TAKE_PICTURE );
The camera activity starts, and I can take a picture, and approve it.
My onActivityResult() then gets called. But my file doesn't get written.
The URI is: file:///data/data/com.droidstogo.boom1/files/parked.jpg
I can create thumbnail OK (by not putting the extra into the Intent), and can write that file OK, and later read it back).
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Apr 21, 2010
I created an android application. This application calls C native library which requires save a temporary file to /cache. However the permission for /cache is wrxwrx--- with uid=cache and gid=system. so the application is not allowed to save a file to /cache.
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Sep 18, 2009
Is it possible for the App to create a new file/asset and write this into the /assets directory. The reason being, that's the only way I can tell webkit will load a local file/resource.
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Jul 28, 2009
When I saved a file or open a dir under sdcard dir, it always complains:"Parent directory of file is not writable: /sdcard/myfile, java.io.IOException: Parent directory of file is not writable" Any idea what's wrong?
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