Android : Get Preferences From Settings.java?
Apr 8, 2009I have a settings.java file that has the following code...

I have a settings.java file that has the following code...
I have Linux Ubuntu 12.04 and installed Eclipse 3.7.2. SDK manager installed and updated, as well as ADT plugin. I can see Andoid in Installed Software but it's missing in preferences.
View 1 Replies View RelatedMy app needs to save its state before being killed, and since that state is really small (one Long), I've decided to use java.util.Preferences. I use it like the way I would be using in any Java application (and never had problems), though I am not sure this is the correct way here on Android platform: private static final Preferences prefs = Preferences.userNodeForPackage (WordChoice.class);
I update preferences in onPause() method, to ensure that data is always persisted no matter how my app ends: Here is that fragment of code: protected void onPause() { super.onPause(); prefs.putLong("currIndex", somePositiveValue); }
Been trying to call Preferences.java class using:
Intent settingsActivity = new Intent(getBaseContext(), Preferences.class);
startActivity(settingsActivity);
I have this in my Manifest.xml (outside the main app class activity). code...
Any ideas why it's force closing even though I have the Activity defined in the Manifest.xml?
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.
(Code is for Android Actually, I need code to be portable between Android and Java SE.)
I want to have a "settings" class with various game settings, like
public int map_size;
public String server_name;
etc.
The data needs to be accessed fairly frequently (so members, not a key-value map), and from time to time de/serialized in some standard way (mainly to send it through network).
I want to be able to
Serialize and deserialize the object into XML or JSON, without having to explicitly write the code for every member (but still having some degree of control over the format).
Define some (constant) meta-data about every member (default value, GUI name, XML identifier, ...), in a way that allows for easy modification in the source code (I want to be able to add a new meta-property, define a default value for it, and not have to specify it everywhere else).
1 is achievable by using reflection. I thought Java annotations for class members would be perfect for 2:
CODE:.............
But it looks like (user-defined) annotations don't work in Android yet - code using them crashes the compiler...
What would be the easiest way to store the meta-data about the settings (or another way to approach all this)?
Store information about settings in some external XML file? Store it in a Java data structure, with content defined in the code? Defining the data in this way somehow seems very unwieldy, especially compared to keyword arguments of annotations?
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 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.
i have two files
App.java
Gallery.java
App. java contains frontend buttons and functionalities Gallery.java lists the imagesin the sd card. i want to call Gallery.java in click event in app.java
App.java
package gallery.display;
import android.app.Activity;
import android.os.Bundle;
import android.view.View.OnClickListener;
import android.view.View;...........
I'm trying to call a java method from javascript using addJavascriptInterface(); but seems does not work, it always display "failure"; java code...
View 2 Replies View RelatedJava packages like Java.io, Java.Lang etc used in android, are they different from Java packages in windows ? means specially made for android ?
View 2 Replies View RelatedI'm having some problems porting a Java application to work in Android platform. I detected an incompatibility problem between java sun and Adroid sdk in java.lang.Class. I oberved that: public Field[] getFields() Returns an array containing Field objects describing all fields which are defined. That's array is sorted as attributes are declared in the main Class in sun jdk. For example, next Class is defined as: public class Example { public boolean stop; public int atr1; public String name; ....
}
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:.......
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:.................
I want to know how we can use shared pref in different application.
View 5 Replies View RelatedDoes 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?"
View 2 Replies View RelatedI 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?
I've just created some preferences using the PreferenceScreen XML following the Earthquake example from Wrox's "Professional Android Development" book.
Using the emulator, how do I accept the preferences?
If I use the back button I return a Activity.RESULT_CANCELED. So which key returns the Activity.RESULT_OK code?
I know only primitives can be stored in the android preferences, but do arrays count? Can I store an array of, say, Strings or booleans in an android preference?
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