Android :: Shared Preference Listener Being Called Multiple Times When I Change A Pref

May 31, 2010

I've written an app with 3 tabs. Each tab has the same list view with different data sources. I have setup SharedPreferences in the tabhost activity, but I put my onSharedPreferenceChangeListener method in my listactivity. When I change a preference, my listener gets called and it updates my database. This is all working. However, if I change the data in tab 1, it calls my listener once. If I change the data for tab 2 it calls it twice and if I change the data in tab 3 it calls it three times. Any idea why it works this way? I guess I could setup my shared prefs in my listactivity and that might avoid the issue, but I'm curious why my listener is called multiple times if it's in a different tab.

Android :: Shared Preference Listener being called multiple times when I change a pref


Android :: Location Listener Called Multiple Times

Apr 16, 2010

I am working on an Location Based Application. In this application i am using LocationListener class to update the location when the Location is changed.In each Activity i have different LocationListener to update location and do some specific work on updated location. But my problem is that when i am changing my location through DDMS , the LocationListener is being called of that current Activity as well as all the activities of the whole application where LocationListener has been defined. I don't know whether there should be one LocationListener for the whole application or for each Activity we should have different LocationListener.

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Android :: LocationListener Being Called Multiple Times

Apr 16, 2010

I am working on an Location Based Application. In this application i am using LocationListener class to update the location when the Location is changed.In each Activity i have different LocationListener to update location and do some specific work on updated location. But my problem is that when i am changing my location through DDMS , the LocationListener is being called of that current Activity as well as all the activities of the whole application where LocationListener has been defined. I don't know whether there should be one LocationListener for the whole application or for each Activity we should have different LocationListener.

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Android :: SAX Is Getting Called Multiple Times With Same Data But Offset

Oct 27, 2010

I am trying to parse an xml file using SAX with Android and the problem is that the function characters(...) is getting called multiple times with what appears to be the same data just offset by a few characters.

As you can tell from the output below the first time it gets called with " alabama" and the second time it gets called with "labama". I am not sure as to why it is doing this but if anyone could help that would be awesome.

10-27 23:04:47.033: DEBUG/LocationHandler(10299):
10-27 23:04:49.000: DEBUG/LocationHandler(10299): alabama
10-27 23:04:51.835: DEBUG/LocationHandler(10299): labama
10-27 23:04:52.129: DEBUG/LocationHandler(10299): labama
10-27 23:04:52.408: DEBUG/LocationHandler(10299): labama
10-27 23:04:52.519: DEBUG/LocationHandler(10299): ub_dir_name
10-27 23:04:52.649: DEBUG/LocationHandler(10299): ub_dir_name
10-27 23:04:52.809: DEBUG/LocationHandler(10299): ub_dir_name
10-27 23:04:52.989: DEBUG/LocationHandler(10299): ile_name.kml
10-27 23:04:53.158: DEBUG/LocationHandler(10299): ile_name.kml
10-27 23:04:53.358: DEBUG/LocationHandler(10299): le_name.kml
10-27 23:04:53.529: DEBUG/LocationHandler(10299): le_name.kml
10-27 23:04:53.698: DEBUG/LocationHandler(10299): le_name.kml
Code...

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Android :: Is It Normal For OnCreate Method To Be Called Multiple Times?

Aug 27, 2010

I have some code in the onCreate method an Activity and noticed that it is being called three times. Is it normal behaviour?

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Android :: Retrive Key From Shared Preference?

Jul 22, 2010

I have a doubt, I don't know how to retrieve the key from the shared preference?

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Android :: Accessing Shared Preference Outside Of Activity

Jul 9, 2010

I need to access the shared preference in a background service instead of activity on phone boot up.But getSharedPreferences function is define in the activity, so how can i access the data without creating the activity?

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Android :: Explanation About Shared Preference In Droid And Its Data?

Aug 26, 2010

I need simple explanation about shared preference in android and preference data

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Android : Unable To Use Shared Preference Within Class Extends View

Jul 28, 2010

I am getting an error , when I try to access the shared preference from within class that extends View.

The Error : "The method getSharedPreferences(String, int) is undefined for the type ViewforRed" , where ViewforRed is my class: Here is the sample code...

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Android :: Share Non Sqlite (shared Preference) Data Over Content Provider

May 28, 2009

I looked into some examples of sharing data to other apps using content Provider. All these examples talks about sharing sqlite dbs. I need to share data under shared Preferences of my app to other apps using content Provider. Can I use content Provider to do that ?. Please let me know some pointers or sample code to share data other than sqlite db using content provider.

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Android : How To Make A Specific Shared Preference Reset Itself After System Reboots?

Oct 15, 2010

I have a SharedPreference that I need to reset itself to its initial value after the phone reboots... any ideas?

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Android :: Get Shared Preferences From A Preference Activity In Android?

Apr 10, 2010

I am using a PreferenceActivity to show some settings for my application.I am inflating the settings via a xml file so that my onCreate (and complete class methods).These preferences will automatically save to SharedPreferences as the user interacts with them. To retrieve an instance of SharedPreferences that the preference hierarchy in this activity will use, call getDefaultSharedPreferences(android.content.Context) with a context in the same package as this activity.

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Android :: Preference Activity / Multiple Preferences

Nov 4, 2010

Is it possible to use the PreferenceActivity and PreferenceScreen to manage multiple instances of preferences fro a single app? It seems that they store preferences as "default" preferences only. I would like to use a PreferenceScreen as my configure activity for an AppWidget, but I need to be able to store distinct preferences for each widget.

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Android :: Jar Files Shared By Multiple Apps

Oct 9, 2009

If there are multiple apps using the same jar file, it makes sense NOT to package the jar in EACH app. However since the jar file cannot be pre-installed on the device, what are other alternatives for developer.

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Android :: Possible To Have Multiple Distinct Shared Preferences Per App?

Sep 24, 2010

Is it possible to have multiple Shared Preferences per app? If you create a PreferenceActivity, the values by default are persisted to /data/data/[PACKAGE_NAME]/shared_prefs/[PACKAGE_NAME]_
preferences.xml

Is there a way to have multiple such files and which one to use for a given PreferenceActivity?

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Android :: How To Access Shared Data / Settings Across Multiple Application?

Apr 17, 2009

Now I have 2 activities that would simultaneously access one data/ settings. However, two kind of solution can be applied after I study from the Android Developer's Guild.One is ContentProvider, The discription in guild is as: "Content providers store and retrieve data and make it accessible to all applications. They're the only way to share data across applications; there's no common storage area that all Android packages can access."and another is SharedPreferences, "To use preferences that are shared across multiple application components (activities, receivers, services, providers), you can use the underlying Context.getSharedPreferences() method to retrieve a preferences object stored under a specific name."

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Android :: Service Gets Instantiated Multiple Times

Sep 27, 2010

IIUC, there should only be one instance of a given service, it is a singleton. However, my (audio engine) service gets instantiated multiple times, although I do nothing for it. When the service crashes (for example when I uninstall the app through adb), it gets scheduled for restart ("Scheduling restart of crashed service.. "). I understand this is an effect of the service being sticky. After that, when my app starts, it calls startService() and bindService(), and the service gets appropriately started and bound. But the service is then reinstantiated and onCreate() is called repeatedly, as many times it was scheduled for restart.

Each instance then wait for clients to bind and register, but onBind() is only called in the "main" service instance. The additional instances wait a bit for client to bind, and since that doesn't happen, they call stopSelf(). But stopSelf() has absolutely no effect in these "dead" instances, onDestroy() is never called.
The "main" service instance does work as expected, and when it decides to call stopSelf(), onDestroy() is indeed called. Worse, all these dead instances accumulate, they never gets destroyed. Therefore, their only possible end is a crash (which happen every time I launch/install through adb), and thus scheduled restart.
So that in the end I get many of these dead instances, which are restarted progressively once by minute approximately.

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Android :: Run Same Application Multiple Times - Name In System?

Nov 19, 2010

I would like to run multiple instances of same application for dev purpose. How does app define it's name in the system, through which of the files is that configured.

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Android :: Same SMS Is Received Multiple Times - HTC Tattoo

Sep 1, 2010

I am facing one issue on my HTC tattoo device. I have written a code which sends an SMS to the given number. At the recipient end I am receiving more than one SMSs. One time I have even received 17 same messages. I am posting the code snippet for the reference-

private void sendSMS(final String phoneNumber, final String message) Log.i("Send To Friend", "sendSMS"); SmsManager sms = SmsManager.getDefault(); sms.sendTextMessage(phoneNumber, null, message, null, null); Toast.makeText(this, "Message has been sent", Toast.LENGTH_SHORT).show(); finish();}

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Android :: Schedule Multiple Notifications At Different Times

Mar 31, 2010

I need to be able to schedule multiple Notifications at different times in the future.

I tried doing this with an AlarmManager, but that isn't suitable, for the following reason. From AlarmManager.set(): "If there is already an alarm for this Intent scheduled (with the equality of two intents being defined by filterEquals(Intent)), then it will be removed and replaced by this one."

Guess what, the sending intents are equal, apart from different Extra's (but those don't count for filterEquals).

So how can I schedule multiple notifications, which will still be shown when my application is killed (the whole reason I tried AlarmManager)?

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Android : ListViews Getting Rendered Multiple Times

Mar 16, 2009

So the situation is this, I have a ListView that is embedded in two LinearLayout ViewGroups to form a screen. BaseAdapter.get View() (the implementation of the ListAdapter) is typically called n times (where n is numElements) to render the screen. The problem I have is this set of calls is being repeated for every ViewGroup that the list is contained in...So for a Layout like this:

-LinearLayout --Linearlayout ---ListView

The adapters get View() is being called n*3 times (3 = 1 for the parent LinerarLayout, one for the child LinearLayout and one for the List itself).

This is obviously a problem when the items in the List are expensive to build (even with recycling).

So I'm looking for some guidance on this, as the documentation doesn't seem to note this behavior from what I can see.

A small, basic example of the source is located on my post here http://www.anddev.org/listview_getting_rendered_multiple_times-t5290.... with more details Oswell as a ready made eclipse project(also attached below) if anyone is keen to try it out.

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Android :: Same Activity Called Twice - Multiple AsyncTasks?

May 8, 2010

I have three simultaneous instances of an AsyncTask for download three files. When two particular ones finish, at the end of onPostExecute() I check a flag set by each, and if both are true, I call startActivity() for the next Activity.

I am currently seeing the activity called twice, or something that resembles this type of behavior. Since the screen does that 'swipe left' kind of transition to the next activity, it sometimes does it twice (and when I hit back, it goes back to the same activity). It's obvious two versions of the activity that SHOULD only get called once are being put on the Activity stack.

Could this be from both onPostExecute()s executing simultaneously and both checking the flags each other set at the exact same time? This seems extremely unlikely since two processes would have to be running line-by-line in parallel...

A lot removed from this question since I was way off in what I thought was wrong. Nonetheless I found the answer here quite useful, so I have edited the question to reflect the useful parts.

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Motorola Droid : Android Reset Multiple Times A Day / How To Fix?

Dec 6, 2009

My first droid reset multiple times a day. I then exchanged it and since then I've had no problems at all. Get a reset maybe once a week or less and thats usually because I'm doing too many things with the phone.

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Android :: How To Change SMS Preference / Setting?

Jul 14, 2010

In my application i m trying to change default android SMS Setting through programming. But i haven't find any document to how to change Messages Setting in android. I have seen package android.provider.Settings but in this package i haven't find any setting regarding SMS.

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Android :: Playing AudioTrack Multiple Times Producing Crash

Mar 16, 2010

I am trying to play audio buffered sound (.wav) using AudioTrack. Please see the code below. I need to call this function under a Thread to support simultaneous play. It is fine being under a Thread. It is working fine playing the sound normally. But if i execute playing the sound using AudioTrack one after another continuously (i.e. executing second play before completing the first play sound), produces device crash (force close unexpectedly error). Does anyone come across such problems and resolve it in a way?

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Android :: Cost Of Calling The Reverse Geocoder Multiple Times

Nov 4, 2009

I'm using the geocoder in the android map api, this work relatively good, my problem though is that i want to be able to get a number of addresses near a geopoint ! I thought about calculating different geopoint near the a center geopoint, but what about the cost of calling the reverse geocoder multiple times etc.

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Android :: App Appears Multiple Times In Recent Apps List

Aug 26, 2010

A number of users of my app have reported that on the Nexus One, running Froyo 2.2, the app appears multiple times in the 'Recent Apps' list that is displayed when you long press the home button. Personally, I have not been able to replicate the issue. Have tried killing the app with a task killer then restarting it to see if that would cause the app to appear more than once on the list. Also tried spawning multiple thread from within an activity in the app, but still no go. I have also tested on Droid phones running 2.2 as well as on the 2.2 emulator but to no avail. It is curious that only Nexus One Froyo users experience the issue. The app has one main launcher activity, about 30 different activities and is divided into 4 main tasks to help manage the activity stack. The app also has an IntentService for running network operations in the background. Is there any know scenario that could cause an app to appear multiple times in the 'Recent Apps' list? Is the 'Recent Apps' list populated based on the app package name e.g. com.mycompany.myappname or based on the tasks defined in the application manifest file?

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General :: Android Volume Change Listener

Aug 20, 2011

Is there any way to listen for volume changes with an android service and react to that?how do the google music app allow the user to control the media volume even when the music is playing in the background?

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Android :: Is It Possible To Change Background Color Of Preference?

Feb 16, 2010

Does anybody know how to change the background color of Preference But this doesn't work.I searched these by using google, but couldn't find any right answer.Also, I couldn't find any way to change other layouts. (e.g. text color, size and style of preference title or summary)Is there no way to customize the layout of Preferences?It'll be great if somebody can help me out.

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Android :: How To Change Preference Text Color?

Apr 22, 2010

In my app i am facing a problem & not getting a desired solution from anywhere. in my preference screen there are 4 check boxes and 2 list views. i have changed the background color white by using the following code...

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