Android :: Preference Activity And AppWidgetId Relation
Jul 4, 2010
i'm using PreferenceActivity class to configure my widget. PreferenceActivity class automatically saves user preferences, so in widget update service i can call context.getSharedPreferences() and i obtain user preferences.Problem is follow: if you have many widget of same type, how PreferenceActivity class saves prefs? how i can load appWidgetId specific prefs from sharedPreferences?
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Sep 24, 2009
I have pretty unassuming preferences screen based on Preference Activity. (You can see it in DroidIn app) I'm having some problems with it that I think have to do with redrawing the screen after updates. Here are the symptoms: 1. OnPreferenceChangeListener#onPreferenceChange if I change summary of the preference by doing Preference#setSummary the new value is painted over the old one creating unsightly effect 2. My preferences screen is large enough that user has to scroll. While scrolling, the whole screen get all messed up, again it looks like view is redrawn (when scrolled) without erasing the background first.
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Jan 30, 2009
I've created a set of preference screens building on the tuts on androidguys. My preference XML contains nested PreferenceScreens. The below doesn't occur in the root screen, only once clicking to a child PreferenceScreen. Once in that PreferenceScreen, even before selecting an EditPreference, if I change orientation (i.e. flick the G1 keyboard out) I get an error: 01-30 09:33:54.080: ERROR/WindowManager(1261): android.view.WindowLeaked: that was originally added here.I have previously overcome this in other activities by utilising the onPause etc methods with custom dialogs I use. How can I prevent this in the PreferenceActivity? What am I missing?
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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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Jul 13, 2010
It occur some problems to develop U/I. there is a PreferenceActivity that was aleady developped and is typecally like 'Settings' of android. by the way, the customer is requiring to change U/I like IPhone.Requirements are
1.application title-bar using ImageView(or TextView) positions to top
2. remove ContextMenu, alternativly static menu buttons positon to bottom.
3. PreferenceActivity is able to scroll and title-bar & menu buttons are fixed each positions.
just all. but It's very difficult to add & fix two views in Preference Activity.
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Apr 11, 2010
I have a problem in the Preferences Activity, in the main preferences the theme shows ok, but if I get to a sub preference, the theme gets messy, it is not white as it should, it is all dark, and the font is black so you can't see much, and when I start clicking on any items they will get sometimes white as they should but revert to black soon after. This is only happens on 2.1, in both the real device and emulator. Tested on the emulator running 1.6 and it was working correctly.
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Aug 1, 2010
I've got a quite interesting issue when I try to display a ProgressDialog (the simple, spinner type) within a onPreferenceChange listener.The ProgressDialog shows up, but not until the method (sleep in this case) has finished. What am I doing wrong?
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Jan 11, 2010
I want to List Item in Preference activity. and I want to launch a Browser with a URL which can change dynamically, When I click on that Item. Can anyone let me know how can i Achieve?
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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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Nov 13, 2009
I think I've missed something in how Android is supposed to work! I have the main Activity with a menu option that opens the preferences screen. What I need is a way for any changes that were made to be communicated back to the main Activity as soon as the preference is activated. At the moment the only way I could get it working is by using the intent data that gets sent back when the prefs activity closes but this isn't really enough. The reason why it needs to be instantaneous is that one of the preferences is a 'Clear cache' button, so I would like the data to be deleted when the user requests it and no later!
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Oct 14, 2010
I have one main activity and one preference Activity. On my first activity I call menu and go on preference Activity by calling startActivityForResult. Code...
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Sep 16, 2010
Is there a way how I can tell the Preference Activity that value should be saved as integer? So far my all values are saved as strings... I can limit input to integers via XML easy:
<EditTextPreference android:key="SomeKey" android:numeric="integer" />
but it is still saved as string and later trying to getInt("SomeKey") on preferences object I always get java.lang.ClassCastException: java.lang.String.
Is there a way that EditTextPreference value would be saved not as string? Or maybe I should use some other type of Preference for numeric input?
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Jun 17, 2010
I encounter a problem with a ProgressDialog in a PreferencesActivity in my application.What I want to do is pop up a ProgressDialog after the user has changed his username or password during the check on the remote server. In the onSharedPreferenceChanged() I call the ProgressDialog.show() method. Sometimes it works fine, sometimes not at all.
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Jun 19, 2010
My app crashes with a null pointer exception on the code below. I have an xml preference file under res/xml/defaults.xml
public class Preference extends Activity {
public Preference() {
} public String getPreference(String key)
{ //it still crashes here
SharedPreferences settings = PreferenceManager.getDefaultSharedPreferences(this.getApplicationContext());
String result = settings.getString(key, null); return result;
} }
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Sep 2, 2010
I got a Widget on my HomeScreen on which i add an click to a Button. I pass the widget id from the Widget to a Service, but when im reading the WidgetId at the Service it's always 3.
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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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Oct 5, 2009
I am developing a simple widget which has a couple of buttons in its layout.
Before the widget gets added, the configuration activity is displayed, where the user can choose if the widget makes any sounds when the buttons get pressed or not.
Thus, a user can put two instances of the widget, one where he chose sound to be activated and another where he chose the opposite. However, I can not seem to be able to reproduce the expected behavior (that one reproduces sound and the other doesn't).
The buttons' behavior varies according to the flags specified to the PendingIntent:
- FLAG_UPDATE_CURRENT seems to override the previous intent/setting - no flags (0x00) seems to ignore any intent/setting after the first instance of the widget is put.
What I want to do: I want to be able to configure different instances of the same widget to behave in a different way, according to what the user specified in the configuration activity. I am attempting to do this with the help of the appWidgetId of each instance:
I have tried the following when assigning an action to the click of the button:
CODE:.................
This results in the first widget acting properly (The IDs printed in logcat are as expected) When adding a second widget, however, the first widget starts reporting the second widget's appWidgetId in its onReceive(), when it previously did no such thing. (because of the FLAG_UPDATE_CURRENT, I guess)
How can one make different instances behave in a different way? Is there a way to do this with the help of the appWidgetId?
I have elaborated a widget application for the purpose of debugging this problem which tries to be minimal, while reproducing the (un) desired behavior: http://www.2shared.com/file/8243059/b6519584/IntentTesttar.html
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Apr 10, 2010
I've a Preference Activity which works perfectly the first time i launch it.But if i close it ( with the back button ) and then i re open it ( through a menu click in the main activity ) then i get a black screen. There is no preferences at all.I can't figure it out why it should not working.It seems all the code is being called normally as the working one but no preferences are showing on the screen.
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Apr 1, 2010
the location where the audioflinger, surfaceflinger and cameraservice talk to MediaRecorder's APIs? Is there any relation between MediaRecorder and AudioRecord?
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Apr 30, 2010
Can one service be bound to n activities?
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Jun 3, 2010
What is the importance of "res" and "src" folders in eclipse-android while creating android project.
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May 30, 2010
This is my first post and Its for sure not going to be my last
I was just wondering a few things
1. I'm getting the Nexus One and putting the SIM Card from my other Rogers phone into it... will there be any problems/pitfalls i should look out for?
2. As far as applications go, if I don't have a data plan, will i be paying out the rear end to use apps such as facebook, last.fm etc?
3. Is there an app that lets you text/call for free?
4. Do you have to have a data plan to download apps when not in range of WiFi (if so how much does it cost to browse the store and download an app?)
5. Does it cost anything to use the GPS (Do you need a GPS plan?)
6. Is there an app that lets you track Text messaging usage, call time, data usage etc?
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Mar 8, 2010
Any one can help interpret the relation between the table "contacts" and "raw_contacts"?Is it one-to-one or one-to-many relation?I am puzzled because the SDK seems indicate it is one-to-many relation but after I checkout all data from the database table,I found it is one-to-one relation. And is there any detailed relation diagram describing android database tables?
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Jun 1, 2010
I am a current iPhone 3gs user migrating over to Android this Friday and getting the Evo 4g. Now, all iPhone/iPod touch screen sizes are the same and all the hardware specs are the same for the most part, but with Android you all kinds of resolutions, screen sizes, processors, etc etc...
Are all apps made for Android stretched to accomodate bigger screen sizes? For instance, I have played with my friend's Droid on Verizon and the screen is 3.7" at a resolution of 854x480 and he has showed me games on it like Gameloft's NOVA which is a full 3D first person shooter. So his phone essentially has a bigger resolution slightly than the HTC EVO 4G but smaller screen size (3.7" vs. 4.3"). So would the same game be stretched to fit my phone?
I'm wondering with different apps, are there any conflicts in relation to different spec phones?
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Sep 25, 2010
I am trying to learn opengl stuff on Android. In the gl.gltranslatef(x,y,z) call, I am shifting my texture by some units in the +ve x direction. But I am unable to find the number of pixels does 1 unit of x belong to?
Here is what I am doing:
I call gl.glviewport(0,0,width,height); // This will set my rectangle with 0,0 as lowerleft corner and then extend it to accommodate width and height.
Then
I call to gl.glfrustrum(-5,5,-7,7,3,7); // I am little confused how this call is using the dimensions I set in gl.glviewport.
How will -5 to 5 units from left to right in the above call, translate to pixels on the screen of android?
I mean if width = 320 and height = 533 pixels, then what will be the number of pixels occupied on the screen due to the gl.glfrustrum call?
I am experimenting in the gl.gltranslatef call by specifying xshift as 5.0, but it does not translate the bitmap at the right or left corner of the screen, when I increase it to 6, part of it is still visible on the screen.
I am searching for the maximum number of units (in terms of X) which will represent extreme corners of my android phone screen.
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Aug 4, 2010
Im on 3 and as of yet there is no update to 2.1 so im on 1.5 ..now this maybe the most stupid question ever but in the sticky slug posted it says coustom ROM'S and all of them are 2.1 does that mean i have to have 2.1 update to be able to use one of these ROM'S, if not what are your recommendations for a custom ROM ie what one from the list is best and why . what will they do/ what do they do , will it improve this already good phone and in which ways , also if i am able to put one onto the phone how do i do it.
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Feb 20, 2009
I know there is a Google Checkout API, but that seems it is more for creating a shopping cart, and interfacing payment methods w/ Google Checkout. Is there any management tool that allows one to 'easily' communicate with the customers? Automate a thank you message, or something?
In addition we have already had one customer call to say he had multiple $1.00 charges for our $0.99 app.
I purchased our $0.99 app and sure enough, I have the following holds on my account 02/20/2009 5399 GOOGLE $1.00 02/20/2009 5399 GOOGLE $1.00 02/20/2009 5399 GOOGLE $0.99
This does not seem right, especially if someone is buying more expensive applications, or using a one time use card.
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Feb 15, 2010
I have next situation: After installing application it has to init settings from server. And while it is not has right preferences it has to wait. I have several receivers and service - I don't want to check for initialization in every action in these components - I think there have to be better solution.
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Sep 23, 2010
I have the following code in my application in res/xml/preferences.xml:
<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
<PreferenceCategory android:title="Wi-Fi settings">
<EditTextPreference
android:key="pref_voice_threshold_top"
android:title="@string/title_pref_voicetopthreshold"
android:dialogTitle="@string/dialog_title_pref_voicetopthreshold"
android:defaultValue="20" android:inputType="number"/>
</PreferenceCategory> </PreferenceScreen>
And I was wondering is it possible for me to then use this preference in code so I can update it via downloading an xml file? So I currently display the above preference in a PreferenceActivity, which works fine, however I want to be able to update the setting by downloading a new setting every week from the internet. So my question is how do I open this preference in code and set its value to the new downloaded value?
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Feb 16, 2009
I have an Android application in which I have my preferences in a xml file, which works fine. I've now want to set one of the preferences using code instead of displaying the entire preference screen, how would I go about doing this?
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