Android :: How To Display Current Value Of Preference In Summary?
Feb 10, 2009
This must come up very often. When the user is editing preferences in an Android app, I'd like them to be able to see the currently set value of the preference in the Preference summary.
Example: if I have a Preference setting for "Discard old messages" that specifies the number of days after which messages need to be cleaned up. In the PreferenceActivity I'd like the user to see:
"Discard old messages" <- title
"Clean up messages after x days" <- summary where x is the current Preference value
Extra credit: make this reusable, so I can easily apply it to all my preferences regardless of their type (so that it work with EditTextPreference, ListPreference etc. with minimal amount of coding).
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Aug 9, 2009
It seems Preference summary text has a limit of about 2 lines, but I want more. How can I do that?
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Sep 30, 2010
New to Android, I have some code when the user changes a preference I update the Summary field in the UI preference to be the value they entered. However, when the preference activity is created I'd like to set the Summary fields to be the values in the corresponding preferences.
Please advise. Thanks.
public class MyPreferenceActivity extends PreferenceActivity implements OnSharedPreferenceChangeListener { protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState);
addPreferencesFromResource(R.xml.preference);
SharedPreferences sp = getPreferenceScreen().getSharedPreferences();
sp.registerOnSharedPreferenceChangeListener(this);
} public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) { Preference pref = findPreference(key); if (pref instanceof EditTextPreference) { EditTextPreference etp = (EditTextPreference) pref; pref.setSummary(etp.getText());
} } }
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Mar 9, 2010
I have a screen where you can enable/disable modules for my Android application.
For this I use a CheckboxPreference screen. This is all good, but the summary field gets cut off if longer descriptions are added than 2 lines.
Suppose I have 4-5 lines of description available for each module, I would like to display this in a helper window.
I tried to bind a click event to the CheckboxPreference, but that fires for the whole line, so not only when the checkbox is clicked, and more, wherever you click on the line the checkbox is toggled.
So now I am wondering if this can be fixed. So if the user needs more info, just taps the text and the helper opens up, and if want to toggle the settings it taps the checkbox.
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Mar 6, 2010
I have an XML preferences screen which is handled by addPreferencesFromResource. On it, there is a ListPreference, for which I want the summary to contain the current value of that preference. I think this would be a common requirement, as otherwise you could not see the present value of the preference without expending a click. I read that the summary field supports resource references, and I see that I can refer to preferences as android:summary="@+preference/prefname" in my ListPreference. Clearly this is why resource references would be supported in this field. However, when I try this, instead of the present value of prefname, the text "false" appears as the summary. Does anybody know how to display a current value without taking the seemingly ridiculous step of rewriting the entire (large) preference screen in Java?
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Oct 14, 2010
I am new to android and not being able to display current location on map so can you provide me the code for displaying Location with manifest.xml and main.xml.
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Apr 21, 2009
I am calling the ZXing scanner from Screen-A using intents. Once the scan is done control of course returns to the code behind Screen-A and I do some other work before calling Screen-B. Problem is the screen is black during this work period and I cannot determine the proper context to use to display a "working..." Toast/msgbox.
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Dec 8, 2009
The native calendar widget doesn't display the current days events only the upcoming ones. Is there a way to change this or a different calendar app that is better?
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Nov 1, 2011
Is a mod possible that displays the current data/network traffic speed in the status bar whenever there is any traffic? The text should be displayed whenever there is any traffic and hides automatically when there is no traffic. The place where date is displayed should be good.
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Sep 1, 2009
I've had my Hero on Orange for 4 or 5 days now and apart from when I first switched on the phone the weather app has just said "No weather data available" and the clock/weather widget has just had my location. I have the "location by cell" thing switched on, and I did manage to get it working once with the GPS, but other than that it just displays my location. It's the same whatever location I am in. The other cities download the weather just fine (London, Paris, New York, etc.). It's not like I'm somewhere tiny either, I am in Bromley. It doesn't make any difference whether I'm using WiFi or 3G.
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Mar 18, 2012
Any widget that will display a moving google map with my current location centered? There are a couple apps I've found that are close, they just don't update in realtime. The reason I ask is because I have my 7" galaxy tab mounted in my truck. I use a program called torque to add gauge widgets (coolant temp,boost pressure, rpm,etc) to my home screen and would like to have a moving map display as well. I understand this would be a battery hog,but the tablet is always plugged in.
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Feb 16, 2010
How to display current date and time in android application?
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Oct 19, 2010
In my actual project I need to draw a MapView with a given running/walking/cycling path on top of it. I don't need the current position so I added an overlay just for the path (no MyLocationOverlay). The path is painted but I don't see the Map in the emulator - only the grey tiles. The apiKey is set in the layout (MapView) and INTERNET permission is set in the Manifest. So I'm wondering if I need more. Is it the emulator simply not working well (I do have 3G and 2 bars in the emulator) or do I need something else? Do I need to build an additional overlay or add additional permissions (xxxLOCATION) to the Manifest.
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Nov 1, 2010
I am getting a date/time string from web in the format of "yyyy/mm/dd'T'HH:MM:SS'Z'" and it is in UTC. Now i have to identify the current time zone of device and then convert this time to my local time. (FYI, Currently, UTC time is 10:25 AM, in india current time is 3:55 PM)
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Jun 8, 2010
i want to know how i can find call timer or summary in my htc desire phone?
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Apr 28, 2010
I am making application in android just like the google finance. My first step is to show the market index summary, I have search the api list. But I could not get any api related to it. I do not want to use any java script. I need basically links this example if I put the symbol as GOOG it should display the information like this.
529.06 -2.58 (-0.49%) After Hours: 529.20 +0.14 (0.03%) Apr 27, 6:47PM EDT NASDAQ real-time data - Disclaimer
1. Range 527.23 - 538.33
2. 52 week 381.54 - 629.51
3. Open 528.94
4. Vol / Avg. 3.84M/3.64M
5. Mkt cap 168.46B
6. P/E 23.97
7. Div/yield
8. EPS 22.07
9. Shares 318.41M
10. Beta 1.11
and chart for this particular symbol.
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May 15, 2010
is there an app available that shows call duration on screen once you disconnect, or is it a setting somewhere within the phone that I have just missed...?
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May 13, 2010
The default behavior of an activity when BACK softkey is pressed is, GO BACK TO PREVIOUS ACTIVITY. If some the same activity is waiting for some response from server or some data updation is going on and then press BACK, I want to wait on the same screen till the current task is completely processed and then move out to the previous activity.
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Apr 8, 2010
Where can I find a list of how much space my apps are taking up? I'd like to see how much more memory I have on my phone and on my SD card. Do the apps store on the phone or the memory card?
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Jul 24, 2012
I have a Lenovo a60 and been using this phone for several months. I have subcribed a unlimited data plan for 6 months and i dont need to see how much data the phone is used up or how much time i talked on my phone.... in short i don't want to see the post call summary. I remember Nokia have a switch to put this OFF but there is no such thing in Android 2.3. Any way to stop this annoying display of summary
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Feb 5, 2010
Is there a way to see summary of e-mail and calendar events on the unlock screen? Would be nice to see my next appointment on the screen instead of unlocking and having a look.
I searched but didn't find anything.
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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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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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Aug 12, 2010
PreferenceManager contains very useful methods like "registerOnActivityResultListener" which enables you to call startActivityForResult in your custom preference like RingtonePreference does but it's restricted at the package level.So tell me, let's say I wanted a ImagePreference. How should I proceed? I want to be able to use a activity for result intent with the PICK action.
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Jan 17, 2010
This is my first Android app (which is a soft keyboard, with dvorak layout) and so far it has gone pretty smoothly (either because or despite working from the sample code). I've had some problems (with special/swedish characters) that I've managed to take care of, but this problem I can't figure out how to solve..
But when I click the list item to edit it, i get an empty dialog (Title and button is shown right and with the text I set in the xml- file, but no list, screenshot: http://i49.tinypic.com/2501p55.png ). I can't see any problem with the program code (which isn't many lines..) or the xml (the arrays are generated by the Android utils in Eclipse and the preferences is a mix of auto and manual). You can see both Java code and XML here: http://pastebin.com/m4c52c3a2 (titles etc in Swedish..) (I've also tried a EditTextPreference item, which seemed to work fine..) I have also looked at the log/output using adb, and can't see any problems there either, so I have no idea onto how to solve this.
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Jul 14, 2010
In my application i m trying to change default android SMS Setting through programming. But i haven't find any document to how to change Messages Setting in android. I have seen package android.provider.Settings but in this package i haven't find any setting regarding SMS.
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May 18, 2010
When I create preference activity I define all preferences in xml file. Every preference has a key defined in this xml. But when I access preference I write:
SharedPreferences appPreferences = PreferenceManager.getDefaultSharedPreferences(this);
boolean foo_value = appPreferences.getBoolean("foo_key_defined_in_xml", false);
Is there any way to avoid referencing "foo_key_defined_in_xml" in hard-coded way? Maybe there is a possibility to reference it in R style way (not to refer to string)?
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May 4, 2010
How do you get the default value of an Android preference defined in XML?
Context: I don't want to repeat the definition of the default value in both the code and the preferences XML.
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