I save preferences in one activities but not able to get saved preferences in other activity. I can access saved preferences in the same activity but not in other one.
It is not giving me any error but always gibing null values in second activity.code...
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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.
View 2 Replies View RelatedIs 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?
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?
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.
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?
I would like some of my preferences to have icons, like the Settings app. I guess one way of doing this would be to copy all the relevant code and resources from the Settings app, but it seems like overkill for a couple of icons.
View 2 Replies View RelatedI can access the preferences and add and change them. How can I view the entire file that stores the keys and values for sharedpreferences in my app. I have changed, added and removed some keys from my code and would like to see the effect on the preference file.
View 1 Replies View RelatedIn an Android utility class, I want to get a system preference value in a class, but I don't have the context there, because the class that calls it doesn't have the context either. I've found that for Resources one can use the static Resources.getSystem() function. Is there any similar way for getting system preferences without context?
My class isn't an activity nor service. It's a utility class. Could give more info if needed.
I can create a new preferences file by calling Context.getSharedPreferences(String name, int mode), putting some values in the returned preferences' editor, and committing. However, I don't see an interface in the API to remove the created file when I no longer need it. I've tried Context.deleteFile(String name), passing in the same name argument from above, but that returns false, indicating the file wasn't actually deleted. I'm using MODE_PRIVATE, if that makes a difference. Browsing the source for context's implementation of the editor doesn't reveal any clues either, as far as I can tell. Any ideas? The background here is that I'm allowing my users to save copies of their "current" preferences so that they can restore previously saved settings. When they don't want those settings anymore, I want to remove the saved preferences file so it doesn't take up space. At the moment the best I can do is an edit().clear().commit on the file, which I believe will remove most of the contents. Not as good as delete, though.
View 1 Replies View RelatedNew Android developer here - I'm hoping this is simple.
I want to create a "row-based" prefs dialog, like you see in most standard apps. You know, black background, fading-line separators, bigger/bold label text for each entry, smaller description text, perhaps a checkbox/down arrow.
Is there a standard object in the Android API for this? If not, how do people usually create these?
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.
I think that it would be too complex to open a database. Does using shared preferences make my app's data size become big. Is there a temporary storage place for my data or should I delete the data in the shared preferences for that widget.
View 1 Replies View RelatedSay my app has a widget and I use a configuration screen to do initial app widget setup and set a few preferences.
I want the user to be able to change those settings by simply going into my app's settings screen and clicking an intent preference to open up the same options the user was given when the app was created.
Can I use the same activity as the configuration activity? Will I have to handle it differently? How does the existing widget get updated with the new settings?
How can I get this to work?
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.
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?
View 1 Replies View RelatedAre there design guidelines to help decide if an application with multiple views should be designed with multiple activities or just one activity and control the back button itself.
I've tried both. My most complex applications using one activity per screen. However, now that I'm successfully written an app with just one activity and handling the back button myself, I don't see any compelling reason to use multiple activities. The one activity application is much simpler and more straightforward.
What advantages of multiple activities am I missing?
I'm working on an application using xml layouts.
I wish to know which is better:
1. Use few activities and change its contentview
2. Use an activity for each 'view' needed
If both works, in which case which option would be better?
I'm planning to develop and app that presents the users with several different screens (of different information).
Was wondering what would be the best way to implement this?
Is it better to have separate XML layouts and an activity to display and allow the user to interact with each screen of data?
OR would handling all of these in the same activity be more efficient (and dynamically load / unload each layout)?
Is there a way to use ListAdapter in preferences screen ? or i must use only chekboxpreference, textpreferences, etc....
View 1 Replies View RelatedCan 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?
How I can access and modify the system preferences (the options you see on system 'Settings' application)?
Cheersss, Armond
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.
View 3 Replies View RelatedI'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.
View 3 Replies View RelatedI'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.
View 10 Replies View RelatedIs 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.
View 3 Replies View RelatedI'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:.................
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 ?
View 3 Replies View RelatedI 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?
View 1 Replies View RelatedI'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:.......