Android :: Using Custom Defaults For PreferenceScreen
Dec 8, 2009
I am currently trying to implement a PreferenceActivity for my application that uses custom default values for its preferences instead of the defaults declared in the corresponding preference XML as the defaults are supposed to change dynamically based on certain conditions.However, when I modify the defaults via the Android API after loading the preferences through addPreferencesFromResource(R.xml.preferences); it already seems to be too late and the individual defaults set via Preference.setDefaultValue do not seem to be taken into consideration when rendering the UI.As I would like to avoid re-inventing the wheel I hope there is some possibility to achieve this using the standard Android preference API. Is there any way to trigger a re-evaluation of the values (and default values) associated with a PreferenceScreen hierarchy? I did not yet try whether creating the PreferenceScreen via APIs instead of loading from XML would help, so that could be an option.
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Sep 26, 2010
I use custom xml attributes for preferences. The preferences are inflated from xml.I managed to create and read custom xml attributes for EditTextPreference, ListPreference and CheckBoxPreference by creating custom classes which inherit from the respective preference class.My problem is that I can't do this for the PreferenceScreen class, as it is a final class. So my question is: Is there any way I can read the custom attributes of a PreferenceScreen?
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Nov 13, 2009
Is there a way to separate my custom downloaded ringtones from the default ringtones?
I like using the defaults for notification sounds, but I dont want them all mixed in with my ringtones, and I'm not sure how to delete or move them...
I have a folder on my SD card .. audio > ringtones and they are all put into the folder, i was just curious if there was any other means of separation?
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Mar 4, 2009
Is there a certain way for me to know when a PreferenceScreen is closed?
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Jul 27, 2010
Is it possible to set a background image on a PreferenceScreen? I have tried the tag android: background= "@ drawable/some_background" which can be set in for example a LinearLayout XML, but it doesn't work in the PreferenceScreen.
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Dec 29, 2009
I want my preference menu to have something to change the duration of a vibration.There is not an slider tag for prefs.xml, so which is the best way to do this?
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Jan 29, 2010
My application has a setting menu which is actually a PreferenceActivity.When it's created, if a boolean value is not set I want to go to the DialogPreference which sets that.How should I do this? It's ok to add that DialogPreference to the manifest?
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Apr 23, 2010
Is there any way to add a button to the bottom of preferences screen and make them work correct when scrolling?
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Jul 28, 2010
I would like to have a Preferences activity that has icons like the system settings has had since Eclair. It uses a special Preference called IconPreferenceScreen.I can copy that into my project without problem, but I'd like the behavior of the PreferenceScreen instead of just the Preference Class. I could like to click on it to show its children Preferences. I thought it would be a easy to change to make IconPreferenceScreen extend PreferenceScreen instead of Preference, but PreferenceScreen is Final.Why on earth would google make PreferenceScreen a final class? Is there anyway to achieve what I would like to do, short of dividing up my Preference into several other Preferences that all receive intents (That's how the system settings works.)
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Jul 2, 2010
My PreferenceActivity contains a nested PreferenceScreen in another PreferenceScreen and I'm applying a theme to my PrefenceActivity that changes the background color. However when I open the nested PreferenceScreen I get a black background and I cannot see the options.This happens with android 2.1 , but it does not happen with android 1.6.Any ideas on how this can be corrected?
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Nov 10, 2010
My Google-Fu is failing this Android newbie today.Does anybody know of a good example showing how to launch an intent from a PreferenceScreen? I want to show a custom LinearLayout that allows me to set some semi-complex preferences.
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Nov 15, 2010
i am trying to gate the title of preferencesreen in my program ..anybody tell me how can i get title? my code of preference xml is here. i want to get the title "Show List" in ma program .
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Jul 5, 2010
I have a PreferenceActivity with a few EditText and CheckBox Preferences. I would like to add a preference of Contact so that when the button was pressed it would allow the selction of a Contact's number.Is that possible using the PreferenceActivity functionality?
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Aug 27, 2010
I have a PreferenceScreen that is defined in XML that serves all the preferences for my application. This PreferenceScreen also has a child PreferenceScreen nested within it. My implementing class is called PreferencesActivity. I know I can open the main Preferences window via startActivity(new Intent(this, PreferencesActivity.class)); but how do I go about opening the child PreferenceScreen via an Intent?
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Jun 9, 2009
Using PreferenceScreen in xml format we can launch activity by specifying Intent as shown in sample application.This will launch Browser activity which is registered to handle http protocol. But this is not working. Getting exception of ActivityNotFound.
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Jan 27, 2010
I am testing my application on a Nexus One and i have some problems. My theme is Light and when an inner sub PreferenceScreen is displayed, the window background becomes black instead of keeping the PreferenceActivity's one.
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Apr 22, 2010
I would like to have a checkbox preference that takes the user to a new (sub)preference screen if the user presses on the actual text (and not on the checkbox to the right).Just as the control under Settings -> Wireless -> Mobile Network Settings -> Access Point Names.
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Jun 21, 2010
I'm currently writing a live wallpaper for Android and it has a PreferenceScreen which currently contains only one preference - a DialogPreference to set various properties of animation.I'm looking for a way to skip showing that preferences list with only one item and to show that dialog right away.But it seems that PreferenceActivity requests itself to have PreferenceScreen as a root element of preference hierarchy. So is it even possible to do what i want?
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May 20, 2010
I have a PreferenceScreen that is defined in XML that serves all the preferences for my application. This PreferenceScreen also has a child PreferenceScreen nested within it. My implementing class is called PreferencesActivity. I know I can open the main Preferences window via startActivity(new Intent(this, PreferencesActivity.class)); but how do I go about opening the child PreferenceScreen via an Intent?
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Jan 25, 2009
I have a PreferenceActivity defined in the manifest with android:theme="@android:style/Theme.Dialog. The theme works well with the first settings screen, but not with the child PreferenceScreen elements (if I have several screens in my preferences). The child screens have the default Theme applied in this case.If the theme is changed to Theme.Light or the default, it works well for all the screens(parent and children included)Is there a way to apply the theme to the children, or is this a BUG ?
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Sep 17, 2010
I've got a probleme with an exception, but I don't know why I get this exception.
The project is about implementing an AbstractAccountAuthenticator with an AbstractThreadedSyncAdapter to sync certain data on a server with a content provider.
I made everything and both adding accounts and syncing is running without any problems.
Now I've tried to add a Preference-Screen just like suggested in the android reference (search for AbstractAccountAuthenticator, it is explained there) via xml like this:
autenticator.xml:
CODE:..........
The Preference-Screen-xml looks like this:
CODE:.....................
The screen is promted how it should be, but and that is the problem: When I click on the PreferenceScreen with the intent it leads to a crash of the system (both in the emulator and my HTC-Desire).
Logcat says:
CODE:..............
Here the part of the manifest, where the activity is defined:
CODE:.......
The whole test-code (it is my project on the essentials to find the problem) is to find at googlecode (http://code.google.com/p/ cleanproject/source/browse/) (Eclipse-Project)
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Mar 24, 2010
I have my own custom Content Provider that loads a database which contains the settings information for my application.
I load the settings from the ContentProvider on the creation of my Settings activity.
My Settings activity is made up of a PreferenceScreen and Dialog based EditText's.
The following code shows how I use the preference screen and edit texts.
So as you can see from the first image this works and displays the menu with the information underneath.
The problem is in image two, when I click on a choice in the menu the dialog pops up but it is empty, I would like to be able to load the data from my content provider into the edit text in the dialog, so in image one it shows "Donal" as the user name so in image two "Donal" should also appear in the edit text in the dialog.
I would also like to be able to listen to the OK button in the dialog so when a user changes a setting I can update the data in my content provider.
what I'm trying to do?
CODE:......................
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Apr 12, 2010
I have a PreferenceActivity with a bunch of (Sub)PreferenceScreens. Each such (Sub)PreferenceScreen represents an account and has the account-username as its title.
CODE:................
As the user enters sub-PreferenceScreen, and edits the account user-name, I want the outer PreferenceScreen to update it's PreferenceScreen-title for the account in question.
I've tried to add...
CODE:.............
But the accScreen.setTitle does not seem to take effect on the outer PreferenceScreen. I've note that calling onContentChanged(); actually makes it work, but I realize that this is probably not the preferred way of doing it.
I suspect I should call postInvalidate() on some view somewhere, but I really can't figure out on what view and when to do it.
http://stackoverflow.com/questions/2396153/preferencescreen-androidsummary-update may be experiening the same problem as me.
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Aug 17, 2010
I have the X (very nice BTW) and I have a few questions.
Everytime a save a new contact or add a phone number, or anything from the phone is defaults to add it to the Gmail profile. I like gmail, but I'm pretty sure I want my work mates to be on the work account. Is there a way to change that default or does Google really want that infomation?
Can I disconnect gmail? I know... ouch... but it keeps getting in my way. I use gmail, but I need the phone to be a work phone. I don't want Gmail stealing all my contacts. I mean seriously, it scanned my AD at work (awesome) and I saved the person... it went to gmail. When you pull someone off the AD, why does it dup them in Gmail, obviouslyt the phone was smart enough to look there, but not save there?
I need a nice line. My average conact now has 3 linked profiles. I want most in the "phone" and work people in the "work" and gmail...sorry. You don't need to know any of these people.
Any ideas or thoughts.... I hate Google bashing, but I need the phone to act like a smart phone and not a gPhone. (Yes I know who makes it, but even Apple doesn't steal your contacts...ouch)
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Apr 16, 2010
Does anyone know how to clear defaults of my own app by code.I know that a user can always go to Manage Applications, find my app and click the button there to clear previously assigned default actions. But for most users this isn't intuitive at all. I would like to offer my customers a solution to clear defaults within my own app if they don't like to use my app as a replacement for a specific action anymore.
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May 1, 2010
I have Listpreferences in my app. They don't appear to be setting to their defaults right after installation - they appear to be null. I'm trying to figure out why my default preferences are not being set right after installation.
In my main code I have:
CODE:......
Right after the above code executes, each variable contains "defValue" instead of the actual values I have assigned in my ListPreference below.
My preference xml file is called, "settings.xml". Here's what one of the ListPreferences there looks like:
CODE:.............
Here's what some of my strings.xml file looks like:
CODE:.................
When I go to menu, and then settings, I can see my defaults checked (radiobuttoned). Then when I go back from the settings menu to my main screen - all is well - for life! ...then each var above is assigned the proper default value.
This only happens when I first install my app on the phone. After I go to the settings screen once and then right out of it, the app is fine and accepts any setting changes.
By the way, as you can see, "List1" is the android:key within a file called settings.xml in my res/xml folder.
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Dec 1, 2008
new to Android, G1 and the forums Wondered if any of you can help?
I have 4 things set up in locale
1) turn on silent when at work
2) turn on Wi-fi when at home
3) turn on silent 6:30PM to 7:30PM (when getting my son to bed)
4) turn on silent 11PM to 8AM (so no emails are waking me!) number 2 works fine, the problem however is with the silent ones, ALL of them never go back to the default (ringer at full volume) when the time is up or when I'm away from the location. any ideas? I don't have GPS on, but the distance from home to work is large so it can't think I'm still anywhere near there plus that won't affect the time related ones.
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Dec 9, 2009
I have a simple "sleep" situation set up.
Conditions:
Time: 11:00 PM-6:30 AM
Settings:
Notification: Status Bar
Shortcut: Bedside (Alarm Clock/notification suppressant)
Configure Defaults:
Display: Level 2; 30 sec
Volume: Level 3; vibrate off
I had an issue with picking up GPS at home with using cell tower triangulation and leaving GPS off. So, I removed that portion.
I have no issues with Locale going into the situation, but it never comes out. I have to manually close Locale and sometimes forget when I first wake up, so I will miss text messages and emails.
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Jan 12, 2010
What's the app that changes the default end call behavior? I believe it gave multiple options beyond defaulting to the call log, as I frequently misdial after ending a call.
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Feb 3, 2010
What are the display semantics for displaying preference defaults? I have been expecting that the first time the app is run, that when the preference activity and its screens appear that any default values say in a list preference are visually indicated as selected. This is not the case in my app, and I think I'm doing everything the same way as the DefaultValues.java example. Is the idea that only those preferences that have actually been set and persisted by the user display selected values?
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