Android :: Create Views At Run Time And Efficiently?
Mar 18, 2010I have a case where I have add to listview textview based on no of messages.
1) I am doing like this for.
CODE:..............
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Android :: How To Make Use Of Views Defined In Layout XML File As Template To Create Views Programmatic Way
Feb 28, 2010I want to populate a table, defined in layout xml file through the programmatic way. I have define Table with a single row defining its header, with all the attributes set. Now i want to know a way so that i can just replicate that header row in the table with new content.
I tried using inflator inflate(int,view) method, but at runtime it showed up with error.
Here is the XML code for the layout file defining the table
CODE:.................
Android :: Reposition Views Att Run Time
Jan 27, 2010How do I reposition views at runtime? In activity onCreate when all views are set all views sizes are 0. If I could somehow subclass activity view loaded from resources I could probably override view's onFinishInflate() and reposition all views after they all have been set and inflated.
View 7 Replies View RelatedAndroid :: Way To Create Proportional Views?
Jun 29, 2010I want to create a full-screen page that looks like this:
---------------------------------------
| -------- --------------------------- |
|| || TextView ||
|| | --------------------------- |
|| Image | ----------------- -------- |
|| View || || ||
|| || TextView || ||
|| || || Image ||
|| || || View ||
| -------- ----------------- | ||
| --------------------------- | ||
|| TextView || ||
| --------------------------- -------- |
---------------------------------------
where each ImageView takes up at most 20% of the parent layout's width.
Primary question: Really...what is the best way to do this? After hours of searching, the best idea I can come up with is to get the screen's width and simply set the views' widths to be a max of 20% of that. However, this intuitively does not seem like a best-practice solution. (Eg. if the application wasn't running in full screen, this solution wouldn't work.) A LinearLayout won't work with the way the page is laid out (appears I have to use a RelativeLayout). And I think it would be preferable to set the views' widths based on the parent view's width (as opposed to the screen's width), but I'm not clear on how to do that either, because at the time that I'm trying to set up the widths of my children views, parentView.getWidth() returns 0. Does anyone have any good, clean solutions for how to create a page as shown above?
Secondary question: Does anyone know how to wrap text around images as shown above? After still more hours of searching, I couldn't find a solution for this; seems like you need to stitch together a couple of TextViews. Is there a better way that I'm missing?
Android : How Can Create Dynamic Views?
May 19, 2009I am creating one quiz application, for question page i have created one view by using Linear layout in that i have added four TextAreas, first TextArea for question and reaming three are for answer cell. so now, when user select the answer cell i want to show next question screen for that i am thinking of creating new view. means some questions may have two answers so i want to create that at run time. how to create new view at run time ? and how to switch for new view.
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Jan 22, 2010There is a given set of predefinied Views that can be used in layouts for AppWidgets. How can a customized View added to this list?
The minimum requirement is that the class is annotated with RemoteView. What else is necessary to be acceptable as view in the layout.xml?
Android :: Create Multiply Views Screen?
May 23, 2010I want to create an activity, which shows a question with 4 answers, and at the bottom of the screen i want to place a timer. i have already found timer example, and i created a question with the answers. the problem that they are 2 different projects and activities, and i am looking for the best way to implement it. i think i can't show 2 activities on one screen, but i can show 2 views or shell i use the ViewGroup, or maybe to copy-paste one of the activities code to another ( its the easiest way but probably the most ugliest way to implement it).
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Oct 2, 2010I am parsing the url to display the contents in it, my requirement i have to display the each content in separate textviews.
For Instance: Let us assume the contents in that url are FootBall, Carom , chess, VolleyBall and so on . I want to display FootBall as a individual textview similarly others. so i cannot declare the textviews in xml what i usually do.
CODE:................
So i planned to create textview via java code
This is my parsing code which parse the url contents and store the result in a string array namely san_tagname; depending upon the length of this variable i want to create number of textviews.
CODE:..................
Android :: Generate / Create Ids For Views That Are Created Dynamically?
Oct 15, 2010I am trying to dynamically create a interface using a relative layout. I would like to align different views with each other and am finding the need to know the id of a previously created view so that I can use them in subsequent layout params.
Is there a preferred or best way to generate or create ids for views that are created dynamically?
Android :: Views And Their Child Views - How To Avoid The Ugly - Boxes - When Child Views In A View Has Another Color Than Background
Jan 6, 2010I have a simple ListView and on that ListView I have placed a number of custom defined Views. The CustomView has ImageView and two TextViews.
The CustomView also has a "stateful drawable" as background, so that the background image (a 9-patch) changes if you press the Row in the ListView. When pressing the Row, the background image changes to a Red-ish thing.
The problem is that when the background changes from the default greyish, all the Views in the CustomView (ImageView and TextViews) still have their greyish background and thus creates very ugly greay boxes on top of the now redish background.
What is the best way to solve that problem? I hoped that such things were handled automatically (as it is done in for example .NET), but I was wrong it seems.
Android :: SQL Efficiently Check - An Association Exists
Nov 5, 2010I have a database of notes and lists, with three association tables.
Basically, lists are parents of notes and other lists, and notes can be parents of other notes in a outline like hierarchy.
I am using this query to return all notes within a list as well as the number of subnotes each note has.
CODE:...................
This query works just fine, but it's overkill. I don't need to return count(n2.note_id) as Num_Subnotes because I'm only using that value to check if the note has ANY SUBNOTES AT ALL. Essentially it's a boolean value where 0 is false and > 0 is true.
It seems to me that counting all those records is a waste of time when I could just return 1 after finding the first matching value.
Is there a more efficient way to check if count(n2.note_id)>0 in the above query?
Android :: Match Efficiently Result String With Various Options?
Jul 6, 2010When you have a list activity and in onListItemClick() you need to obtain the selected item and then match it against various options, what is the efficient way to do it? switch case cannot be used since I want to match Strings. Is a very long if-else if ladder the only way to do it?
Basically the question is how to do something that normally would be done in switch statement with Strings.
Android : Way To Create DB On Install Time?
Nov 2, 2009I want to create the DB when the app is installed not the first time it runs the program, how i can do that? or maybe put the DB inside the apk? any sugestion?
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General :: App For Managing Background Data Efficiently?
Apr 15, 2012I'm looking for an App which allows efficient control of the 'Restrict background data' checkbox on a per-App Basis.
In ICS today I can navigate
Settings -> Data Usage -> "someAPP"
And then check/uncheck the 'Restrict background data' checkbox to make the data traffic explicit for me: If I don't use "someAPP" I can expect that there is no background data traffic generated by "someAPP" (no extra cost in roaming mode).
I do have some apps (e.g. a pushmail app for company mails) which I always want to allow the use of background data in order to get my mail.
Other's (e.g. use of gmail, G+, etc.) I want to toggle the behaviour very quickly:
If I'm in 'roaming' mode: disable, if in my home-network with flat cost: enable.
This is the reason I can't use the 'Mobile Data' switch.
Today I navigate as shown above, which is cumbersome and likely to be incomplete. I think of an app, where you can compose a list of apps (from the installed ones) and enable/disable 'restrict background data' for apps on this list with one click.
Android :: How To Create A Time Table Like Layout
Nov 1, 2010I would like to create a time table like layout which has a dynamically adjustable lengths as shown in the picture Please provide some pointers on how to implement this.
View 1 Replies View RelatedAndroid :: How Can Update The All The Views Inside A TabHost When Pressing On A ContextMenu Item From Within One Of The Views
Nov 16, 2010I am implementing a music player application in Android. My play list selection screen is implemented as a tab selector widget which contains a ListActivity inside each of the tabs: Artist, Albums, Songs.
I want to update the ListView in each of the ListActivity when I delete an item from any of the lists.
i.e. When I long press an item in the Artists list a context menu is drawn with "Delete Artist"
And it should delete all the songs from this artist in the Songs ListView, delete all the albums by this artist in the Albums ListView, and finally delete the entry for the artist in the Artist ListView.
Each of the ListActivity has its own fillData() method, which updates the ListView when the button in the context menu is pressed.
How can I call the fillData() method of the Albums ListActivity after I update the ListView inside of the Artists ListActivity?
Android :: Switching Views With RadioButton And Saving Views In Bundle
Mar 6, 2010I have the following XML code:.................
The idea is to change the views, whenever I press one of the radio buttons. When I press a button the first time everything works out fine, but the second time I press a button, I get an IllegalStateException, and I can't quite see why I'm getting this.
Also, the Activity seems to set all my global variables to null, which is why I have to create them every time I switch from portrait to landscape or vice versa. So I would like to know if there is a way I can save my views in the Bundle, or any other way in which I can permanently save my views, so I don't have to add or create them every time, I flip the phone. And whenever I flip the phone, it seems that it rereads the main XML file, causing the RadioGroup to be set to 2D even if the 3D button is checked. This is because I've said the 2D button to be checked from when the app is first created, but I would like to also save the state of that RadioGroup.
Android :: Way To Create Service To Report Location All Time?
Mar 23, 2010I want to create a service that runs on Android which can collect all of my location information. Either write the information to a file or send to a server using 3G/wiki network. I was thinking about using a service that runs forever as a daemon. After reading "Diamonds are forever, services are not" by Mark Murphy, I realized that it is not a good idea. However, I need to somehow acquire the moving trajectory information on the Android phone. Without a daemon service running forever, how do I do that ?
View 4 Replies View RelatedAndroid :: How To Align Views In The Middle Of Another Views Baseline
Jun 16, 2010How do you align views relative to the "middle" part of another view? I think it is best explained with a pic of the UI I'm trying to create in android.
View 2 Replies View RelatedAndroid :: Wat To Create Date / Time Settings Dialog In Phone?
Nov 23, 2010How can I create date and time settings dialog in Android? I want:
3 fields - day, hours and minutes
it should look native to the system - that makes writing my own widget quite hard - how to make the plus/minus buttons above/below each field look like the standard buttons that are in TimePickerDialog? I mean even on HTC Sense.
Android :: Android Platform - Efficiently Sending Protocol Buffer Messages With Http
Mar 16, 2010I'm trying to send messages generated by Google Protocol Buffer code via a simple HTTP scheme to a server. What I have currently have implemented is here (forgive the obvious incompletion):
HttpClient client = new DefaultHttpClient();
String url = "http://192.168.1.69:8888/sdroidmarshal";
HttpPost postRequest = new HttpPost(url);
String proto = offers.build().toString();
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(1);
nameValuePairs.add(new BasicNameValuePair("sdroidmsg", proto));
postRequest.setEntity(new UrlEncodedFormEntity(nameValuePairs)); try { ResponseHandler<String> responseHandler = new BasicResponseHandler(); String responseBody = client.execute(postRequest, responseHandler);} catch (Throwable t) { }I'm not that experienced with communications over the internet and no more so with HTTP - while I do understand the basics... So my question, before I blindly develop the rest of the application around this, is whether or not this is particularly efficient? I ideally would like to keep messages small and I assume toString() adds some unnecessary formatting.
Android :: Do Root Views Of An Activity In Android Have Any Prior Knowledge Of The Child Views That Will Be Loaded Into Them
Jan 25, 2010Is there any way to query a root view of an activity for all of its child views even before the root view or its children have been inflated? I guess what I'm looking for is whether a view knows ahead of time what children it will have before it gets inflated, and can I get that list in some way. Bizarre I realize, but I think it will help me with some unconventional automation testing I'm working on. I haven't found anything in the API like this.
View 1 Replies View RelatedHTC EVO 4G :: Address Book Is Force-closing On Every Time I Try To Create A New Contact?
Sep 24, 2010I recently loaded Baked Snack 1.7 on my phone as my first custom ROM - before that I had rooted stock Froyo. I tried two Baked Snack kernels and now have KingsxKlick bfs #9.
So I have all these variables and now I have a weird problem - my address book is force-closing on me every time I try to create a new contact. I haven't created a new contact in awhile, so I have no idea whether this could be related to my new ROM or kernel, or if it's a problem with the address book itself. I have had no other problems since installing the ROM and kernel.
I can input the new number for the contact, but when I try to name the contact it says it has encountered an error and needs to stop. This is the stock HTC People app, and I have tried it creating the contact as a regular phone contact and as a Google contact. No dice.
I've also tried a battery pull, clearing cache, the basics.
Any thoughts, guys? I met a cute boy and I REALLY need to save his number.
Android :: Programmatically Add Views To Views
Mar 7, 2010Let's say I have a LinearLayout, and I want to add a View to it, in my program from the Java code. What method is used for this? I'm not asking how it's done in XML, which I do know, but rather, how can I do something along the lines of (One View).add(Another View) Like one can do in Swing.
View 2 Replies View RelatedSprint HTC Hero :: Can't Create FB For HTC Sense Account - Message - Service Unavailable At This Time
Jul 27, 2010Since FB refuses to sync with my contacts, I deleted my FB for HTC Sense account and tried to create a new one. All afternoon yesterday and now this morning I got the message: "Service Unavailable at this time."
View 1 Replies View RelatedAndroid :: Create Sub Directory In Asset Directory On Run Time In Android
Oct 6, 2010how to create a sub folder in asset folder at run time and copying the files from res folder to my assets sub folder.
View 1 Replies View RelatedAndroid :: GetFromLocationName Always Throws IOException First Time - But Is Successful Second Time With Same Input
May 29, 2009My calls to getFromLocationName() always fail the "first" time I start my app. I catch the IOException which has reason:
Unable to parse response from server
Then I make a second call and it succeeds. Once things are "awake" all future calls to getFromLocationName() succeed, it's just that first one, and there is a ton of latency.
I haven't run this on a device yet, just in the emulator. This seems like a network problem, but it is so reproducible I'm thinking I'm not initializing something properly. I'm using Android SDK 1.1.
Android :: Make Progress Bar To Measure Time (pause/playing/total Time) Of Different Video?
Aug 29, 2010How can I make progress bar to measure time (pause/playing/total time) of different video which is streaming from website?
View 2 Replies View RelatedAndroid :: Display UTC Date / Time According To The Current Time - Zone
Nov 1, 2010I 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)
View 1 Replies View RelatedAndroid :: Time To First Screen - Boot Up And Application Start Time?
Aug 25, 2009at the moment I am thinking about a new app and need some information to decide whether to develop on Android or an alternative OS. I am particularly interested in "time to first screen", "boot-up time", "time to first Audio" and "app-start" (can be any from the android market or even one of the pre-installed ones) time? Does anyone know a source or perhaps measured those numbers?
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