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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I will try to explain a simple app scenario: My app goes right to a 'main view'. In this main view I have inserted a 'TextView' which displays current settings created by way of the PreferenceManager. For simplicities sake, let's say I have a checkbox in my settings. When I first start my app - the TextView on my main view shows my checkbox setting correctly (true). Now I go to the settings menu, it pops-up, and then I change it to false. I go back to the main view and...no change. It still say's true even after I changed it to false. If I end the app and then re-start it - all is well and it shows my change.
Apparently the main view just stays in the background while I'm changing settings? How can I redraw or update the main view after I change settings?
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.
View 2 Replies View RelatedI'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?
View 17 Replies View Relatedi'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?
View 7 Replies View RelatedIs 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 RelatedIt 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.
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.
View 2 Replies View RelatedI'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?
View 2 Replies View RelatedI 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?
View 4 Replies View RelatedI 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?
View 6 Replies View RelatedI 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!
View 4 Replies View RelatedI have one main activity and one preference Activity. On my first activity I call menu and go on preference Activity by calling startActivityForResult. Code...
View 1 Replies View RelatedIs 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?
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.
View 2 Replies View RelatedMy 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;
} }
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.
View 4 Replies View RelatedWhen i run my program, logcat shows a lot of activity with GC like.
CODE:..................
With diff in obj, bytes and ms values...is it because of some bad practice of coding ?
I want to display Dialog Box when the application is launched before loading and launching the activity.
or you can say I want to show the dialog on launcher after the launch of my application.
i'm having the above problem when switching my activity. In the first activity i have a GalleryView showing all my images and an ImageView show the selected image from the gallery. Now i want to switch to the next activity and keep the same image from the ImageView on screen in the second activity. Here is how i show my images:Is there like an id or something saying what's on screen at the moment of the switch? How can i accomplish this?
View 2 Replies View RelatedI know that the following code should show and hide a tiny circular progress bar with the following code in Android:
CODE:.............
The problem is that I am using a TabHost and I need to be able to do this from one of the "child" activities. Is there any way I can go about doing this?
i developed application with map service and webservices when i run application its became very slow and continuosly it is showing activity not responding force close or wait.
View 1 Replies View Related1) I dont want to re-create activity once it is created in order to show. How can I do this ? like showing activity from back stack whenver thers a call for it. (It might appear at any index in back stack.)
View 1 Replies View RelatedI 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.
View 3 Replies View RelatedI 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?
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?
View 1 Replies View RelatedPreferenceManager 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.
View 7 Replies View RelatedThis 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.
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.
View 2 Replies View RelatedWhen 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)?