Android :: Preferences - How To Load The Default Values When User Hasnt Used Preferences-screen
Apr 22, 2010
I am using a PreferenceActivity to let the user set some values. I am feeding it the xml file with the defined preferences.
I have set all the android:defaultValue="" for them.
When I start my application, I need the preferences, or if they are not set yet manually, I want the default values:
CODE:.................
However, when android:defaultValue="true" I still get false. So, it looks like the defaultValues set in the XML are not used anywhere but when initializing the preferences-screen.
I don't want to hardcode the default values in the getBoolean() method. So, is there a way get the default-values with only defining these in 1 place?
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Jul 7, 2009
Prefs are defined in preferences.xml, arrays.xml, and strings.xml. Default values are defined in strings.xml.
For example:
CODE:................
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Aug 20, 2009
I want to load default preferences on app startup (before the user hits my preferences screen). Is there a way to do this using possibly xml and the manifest?
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Jun 23, 2010
My android application has two kinds of preferences:
1) I have user preferences defined in res/xml/preferences.xml so that users can manage their preferences with a PreferenceActivity.
2) I'd like to define another file for global configuration preferences of my app.
What is the best way to manage my app config preferences? Should I create another XML file with config values or should I specify those config values in strings.xml? What is the best practice for managing config preferences?
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Mar 19, 2010
My application is used on multiple platforms so it saves it preferences to a file (rather than to the standard Android SharedPreferences).
Is there any easy of reusing the PreferenceActivity to save preferences to a file or is it a case of creating a whole new activity to do the job? If the latter is the case is there a layout I can use that will make the activity look like the normal preferences screen? PreferenceActivity uses com.android.internal.R.layout.preference_list_content but this doesn't appear to be available to apps for reuse.
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Sep 16, 2010
I have a preferences page which is defined by XML - including some default values. I use a PreferenceActivity to display and handle this page. Whenever I use this page to set the preferences the preference file on the file system is updated properly - I can see this via adb. However, whenever I go back to the settings page after have changed some of the settings, it's the defaults that are shown. Worse than that, if I press back without changing any settings, it then sets the, all back to the default. How I can get the prefs to actually show the current settings? My PreferenceActivityis created thus:
@Override protected void onCreate(Bundle savedInstanceState) {
PreferenceManager.getDefaultSharedPreferences(this) .registerOnSharedPreferenceChangeListener(this);
setDefaults(this); super.onCreate(savedInstanceState); addPreferencesFromResource(R.xml.settings); }
The XML looks like this:
<?xml version="1.0" encoding="utf-8"?> <PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
<ListPreference android:id="@+id/numberOfYearsList"
android:key="numberOfYears" android:title="Number of Years to Read the Bible"
android:summary="How many years would you like to take to read through the reading plan?"
android:entries="@array/numberOfYears" android:entryValues="@array/numberOfYears"
android:dialogTitle="How Many Years?" android:defaultValue="1" />
<CheckBoxPreference android:key="ignoreDates" android:id="@+id/ignoreDatesCheckbox"
android:title="Ignore Dates" android:summary="Would you like to use the dates in the plan?"
android:defaultValue="false" /> </PreferenceScreen>
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Sep 2, 2010
From what I can incur out of the SharedPreferences documentation, I can update a preference, add one or clear all preference values in a shared preference file.
But I want to completely clear everything inside a shared preference file, not just the values, but the preferences they refer to as well.
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Jun 25, 2010
i am trying to store the user preference whether he checks the checkbox or not ,but when i restart the activity, i am not able to restore the preference. here's what i have tried..................
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Nov 2, 2010
I have a ListActivity and a MapActivity. I would like to launch either one of these activities on application startup that has been chosen by the user in a preferences window.
So far the only way I see to launch an activity on application startup is to specify it in the application manifest file using...code...
I am thinking I might have to start an activity that does nothing but looks at the user preferences and then launches either the ListActivity or MapActivity. Seems like a waste to have an activity do nothing but launch another activity. In my research I have not found any solution to this problem.
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Jun 20, 2010
Will the data still be there after the user restarts his / her phone or changes SIM / battery?
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Oct 5, 2010
If I store some user settings and information in shared preferences in my android apps, and then I update the app in the Market, will those settings be erased when the app updates?
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Jan 21, 2009
In a preferences screen in my application which is build by extending the PreferenceActivity i need to change background on the window itself and on the PreferenceCategory. How i can do it via Themes/Styles ? Which attributes i need to define ?
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Nov 2, 2010
I'm trying to remove a preference from the screen so it isn't visible if the user is using an SDK greater than 2.2. I've found several answers saying that getPreferenceScreen().removePreference(thePreference) will work, but I'm getting FALSE returned every time I try it. Am I using it in the wrong place?
Any clue from my code?
CODE:.................
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Aug 19, 2010
I'm currently using this in preferences.xml: .......................
This allows to trigger a custom Activity when this specific preferences item is triggered. Copying from the documentation, I'm using an implicit intent, and it's working. But I'd solve a problem if I could use an explicit intent, that is writing the fully qualified class name of the target Activity. I didn't find documentation about this, so I don't know whether it's possible and how to do that.
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Nov 8, 2010
I am attempting to add a simple preferences file in a new Android project (New -> Android XML File), but it doesn't appear to be working correctly.
There is no root element to choose from when I select the Preference type layout. If I press Finish, it doesn't do anything. See screenshot below.
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Feb 7, 2014
just wondering if there was any way to set per-app preferences for a secure lock screen with a pin entry. For example, i don't care if my google-music lock screen widget works while the phone is locked (and having to enter my pin every time I want to go forward or back a song sucks. That's just an example? Root-only options are welcome as well.
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Dec 16, 2012
Is it possible to create a shortcut for network preferences in home screen
As i use that option frequently, each time i have to go to settings-->more-->mobile networks-->Network preferences
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Oct 5, 2010
Is there a way to use ListAdapter in preferences screen ? or i must use only chekboxpreference, textpreferences, etc....
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Aug 6, 2009
Can any body know how we can use the preference & widgets together .
I want to use preferences to show like a list & want to show buttons at the bottom of similar screen?
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Oct 15, 2009
How I can access and modify the system preferences (the options you see on system 'Settings' application)?
Cheersss, Armond
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Jul 9, 2009
I would like to give users a choice of starting one of three different activities by choosing from three mutually choices. And I would like to provide users these choices as Preferences. If I use CheckboxPreference, user can select more than choices. Something like "RadioGroupPreference" would be good but it is not available from SDK. Can mutually exclusive preferences be implemented? Pointers or suggestions are greater appreciated.
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Feb 26, 2009
I'm trying to give an option to users to be able to change the theme to the light one. I can't find any command or anything for this. I know I can set this in the Manifest file but this is not what I'm looking for.
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Jan 22, 2009
I'm having this problem with one of my apps where some people are reporting that their preferences are not being saved when they close and resume the app. The preferences theyre talking about happen to be actual Preferences (i.e. the built-in preferences manager for an activity). They say they're not doing anything special, just exiting the app and going back to it. Does anyone know why the prefs wouldn't be saved for only this select few people? I'm at a complete loss.
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Mar 7, 2009
Is there a way to launch a dialog (say, the dialog I show to users the first time they launch the app) from a preferences entry? I don't see any examples doing this in the API Demos, nor have I seen it out in the wild. I do see a class called DialogPreference, but this doesn't seem to be what I want.
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Jan 19, 2009
I'm having a hard time trying to understand how the preferences activity works. Right now I have an activity for my preferences using a XML layout that has this:
CODE:............
The thing is that everything I do in the preferences are saved. I can reboot the emulator and I can access the preferences. I want to know how can I access this key from another activity on my application.
This is my activity:
CODE:.................
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Sep 16, 2010
I downloaded launcherpro, and there is no application icon with the rest of my apps. I wanted to fix my screens and stuff, but I cannot find the preferences for the app. I cant even find the app on my phone. It changed my home screens from 7 to 3. Is there only a way to get to the preferences by purchasing LauncherProPlus?
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Mar 1, 2010
I'm trying to make a somewhat advanced settings Activity (one that has a RadioGroup in one of the cells). The layout xml file contains the following:
CODE:.......
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Jul 28, 2010
I want to know how we can use shared pref in different application.
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Sep 6, 2010
Does Android provide smth. like that OR do I have to check every time during start of my app "Oh, am I freshly installed? Do I have to initialize the Shared Preferences now?"
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Oct 29, 2010
I have a user preference in my app, which gets ued by different activity. I would like to know the best way to utilize those preferences between different activities in my App.
I have this idea to create a shared preference object from the main activity and from there send intents to the different activities to take actions. would it work?.. or just keep calling getsharedpreferences() from every activity?
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