Android :: Dynamic Lists Of Data In A Layout?

Nov 17, 2010

I want to display contact information in a custom layout. My app lets the user select a contact, then I retrieve key pieces of info on that contact (phone #'s, email addy's, etc). I want to display them to the user so they look grouped logically. Sort of like a series of tables, so phone numbers, then email addys, then organization, etc.

I have a table format that I've been using in a different part of the app where I know the exact number of rows I'm adding and I have defined styles for the rows already. I want to reuse those styles for this data, but android sdk won't allow for you to set the style attribute programmatically.

I could create the tables in code and set all the attributes the same as in my defined styles, but it seems like a lot of extra coding.

Android :: dynamic lists of data in a layout?


Android :: Populating Child List In Expandable Lists Using Dynamic Multidimensional Arrays

Jul 26, 2010

I am using a simple expandable list that is populated by two arrays ( group array for the groups and a multi dimensional children array for the child). The arrays are built dynamically in the program and some group items have more children than others. So I end up defining the highest number as the array size for the multidimensional child array. After populating the child array, some positions are left null, as there are no values for those group items (explained above). When I associate this with the expandable list adapter, the getChildView method throws a nullpointer exception when it comes across a position in child array that does noto have value. I have two questions:
1. Can I make the base adapter skip the shildview method if the value in that child is null? The current implementation of getchildView method has to return a view and even if I suppress the nullpointer exception, it adds a blank element in the child position in the list.

2. Is there a better way of associated multidimensional arrays that are populated at run time? The current set of examples only use hardcoded string array values. Even the cursor adapters examples use very basic setup.

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Android :: How To Set Some Lists In One Layout

May 17, 2009

How to set a few lists in one layout include their own data from DB?

Here is source code about set list in Android guide. List id is @android:list why the id must be android:list?, may I use my own id? If I can, how to set lists to main layout including their own data.

CODE:........

I want to set lists like this :

CODE:..................

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Android :: Many Lists In One Layout

May 14, 2009

I want to set some lists in one layout, but I found it's only recognize the first <ListView . how to write xml file ?

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Android :: Multiple Expandable Lists In A Layout

Jul 30, 2009

I want to have more than one expandable list within a layout. It appears that an expandable list in a custom layout must have an id of "@id/android:list". So, how could I have more than one if they would need to have the same id?

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Android :: Layout With Dynamic Position

Sep 10, 2010

I have a layout which might be a bit unusual.

The structure is the following:

CODE:..............

My customRelativeLayout at the bottom of the XML has a XML layout too:

CODE:.............

My CustomRelativeLayout:

CODE:.....................

What I want to do: I want to be able to change the position of my CustomRelativeLayout. It should be follow my touch. Its smaller than the SurfaceView and should "slide" above following my touch...

There are two problems:

The onTouchListener bind to mLinearLayout (in CustomRelativeLayout) is only triggered once and only for ACTION_DOWN. I see the log output only once The note never changes the position, it is never redrawn with the changed matrix... I see the output stated in onDraw never after the touch happened.

First might be because the SurfaceView also handles touch events. But I thought if the CustomRelativeLayout handles it first, it should work.

Thanks to Xil3 I was able to remove the wall I was run into...

Here is my solution:

My note xml:

CODE:.................

And here is my constructor:

CODE:..................

I also found a bug/feature/issue, which is absolutely new for me: When I remove the background in my note root element (which is currently transparent) the note is only visible within the 200dp width/height I have set in the inner LinearLayout. So its not fill_parent, its wrap_content even as I set it to fill_parent. So layout_width and layout_height only use the given fill_parent when a background is set...

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Android :: Dynamic Layout Change During Runtime

May 25, 2010

For an application I need to place some objects at the exact position that I want to have them and therefore I need to use AbsoluteLayout this time.

I want to add buttons dynamically exactly like in the following XML - but during runtime.

CODE:................

How can I archive this? I tried it with the following code to add a button, but I haven't found a function so far to set layout_x and layout_y. How can I do this?

CODE:....................

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Android :: Automatic/dynamic Margin In Layout

Aug 10, 2010

I was wondering if it's possible to set an automatic/dynamic margin (padding?) between elements in an Android layout without having to do it programmatically?

For example let's say there is a horizontal LinearLayout which is set to android:layout_width="fill_parent" and that contains five elements. Is there a setting that evenly shares the remaining empty space of the LinearLayout to the margins of the child elements?

See image at http://img63.imageshack.us/img63/8/margin.png

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Android :: Dynamic Loading Of Complete Layout File

Jul 1, 2010

I'm dealing with a problem you guys might not have faced earlier. I'm having a use-case in my Android application where the actual screen that I want to show to user is not stored in any layout file of my application. The layout of the of the screen is designed by server in this case, based on selection made by user on first screen.

Let me elaborate here,
1st Screen : List of check box with different biller names. (Imagine I've selected 2 billers from this screen)
2nd Screen : (The screen that server has decided how it should look like)
* Header,
* 1st Biller name (Label)
* Amount for 1st Biller TextBox
* Image (a Separator image)
* 2st Biller name (Label)
* Amount for 2st Biller TextBox.
* Here there can be a checbox/radio/another TextBox anything.
* Image (a Separator image)
* Button (to submit above form back to server)

I hope makes some sense in what I'm planning to design. The current issues I'm dealing with are as below.
1). How to draw this dynamic widgets?
2). How to fetch user Inputs from this dynamically created widgets?

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Android :: Display Dynamic Table Layout In Droid?

Jul 7, 2010

I try to add a table layout from Java code. When there are two fields in a tablerow it displays the first field only. How to display the entire row with all fields?
code... How to do this?

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Android :: Make Dynamic Layout Which Contains Mixed Elements - Checkboxes And Buttons?

Mar 2, 2010

I want to make a dynamic layout which contains mixed elements

[text] [checkbox] [button]
[text] [checkbox] [button]
[text] [checkbox] [button]

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Android :: Custom BaseAdapter - Dynamic Updates - Crash In ListView Layout

Feb 16, 2010

I'm trying to get my first Android app stable enough for the marketplace, and I've hit a brick wall with one exception that I don't understand. Probably I'm doing something stupid, but I can't tell what, and after several hours googling and experimenting, I thought I'd see if I can get some help. My Activity extends ListActivity, and the parts I think are most important are extracted below:

GroupedListAdapter is a simple class that extends BasedAdapter to provide headings for sections of the list (not unlike the Fancy ListView tutorials that are floating around).

I create this in onCreate, and it works fine. Inside onListItemClick, I do some actions which will create a different set of list contents. I "clear" the adapter, which empties the contents, and call reload, which repopulates it. Then I call notifyDataSetChanged.

Most often, this seems to work, but also fairly often, I get the exception following the code snippets below - this seems to indicate the ListView is not in sync with my changes. Lately this crash happens 100% of the time under the simulator.

CODE:.........................

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Android : Pass Droid Dynamic Layout With Variable Textviews / Events?

Nov 8, 2010

I have a layout with dynamic content. It has a variable number of textviews. On each textview I have to attach an event, a click event. I have to pass to that event some kind of information to know what textview has been clicked exactly. How can I pass this kind of information or how is the android way to do it?

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Android :: Todo Lists / Task Lists / Evaluations And Reviews

Nov 8, 2009

I'd like to dedicate this thread specifically to the evaluations and feedback for various Todo's, Todo Lists, Tasks, Task Lists, Lists, etc.I'd like to keep this separate from Notepads as I've dedicated that to another thread ( Notepads and Notepad's that sync - Evaluations and Reviews ).Doing a search for Todo's and Tasks on the Android Market comes up with so many results. Rather than downloading and trying out so many, I'd like to know which ToDo's and Task Lists, etc. are recommended.I've been searching for ToDo lists and Astrid is frequently mentioned. Other sync or link to Google Tasks or sync with Google as well.Other ToDo / Task Lists? What are some ToDo / Task you've downloaded and/or experimented with? Please comment on other such productivity Apps. Please indicate if they
1) Offer Multiple Lists
2) Folders
3) Sync
4) Email
5) Offer other unique features

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HTC Magic :: New User / Log Lists And Controlling Data Usage

Jan 9, 2010

I used to use Nokia phone but just changed to HTC Magic.

1) I can't seem to find any settings that allow me to check talk time, number of SMS sent, amount of data used, etc.? I need to keep track as my plan is not unlimited.

2) Is there any way I can stop the phone from accessing GPRS/HSPA from my provider? Once again, it is cos of my very limited data plan (only 20mb per month), so I would want to control the usage. I notice that when the phone is not on WiFi it will automatically connects to GPRS/HSPA and there is still data transfer even when the phone is on standby mode!

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Android :: BroadcastReceiver For Data SMS - Static Works - Dynamic Does Not

Mar 29, 2009

I have created a broadcast receiver statically by specifying it within the Manifest, and I have also created the "same" broadcast receiver in code and have registered it with the application context. The static way works very well, but the dynamic way does not receive the expected broadcast. It could be that I am not creating the intent filter correctly, or that I need to register it with some other context somewhere. Please see the code examples to see what I am doing. This is related to receiving data SMS, it works very well on a device using a broadcast receiver defined in the Manifest. The correct permissions are set for both examples.

The following is from the Manifest, and the resulting receiver gets the expected broadcasts:

CODE:.....

The following is the code example that doesn't work (it does work with an intent like "android.provider.Telephony.SMS_RECEIVED" but not for data sms):

CODE:.....

The question is - why does this broadcast receiver get notified of the incoming data messages? It seems some other resource is notified when the Manifest version of the receiver is created...

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Android :: Display A List Of Checkboxes Using Dynamic Data?

Oct 29, 2010

In my apps preferences screen, i want to pop up a dialog that shows a list of checkbox items that are dynamically generated.

How does one do that and also, how does one get the checked values? I have made custom dialogs in the past, but for some reason my brain wont function today ..

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Android :: Scrolling Large Lists Of Cursor-based Adapters Is Faster Than Much Smaller Lists Of In-memory Adapters

Nov 3, 2010

I have an Android app that has both CursorAdapter based ListViews (backed by sqlite) as well as custom BaseAdapter based ListViews which are built on the fly from JSON pulled down from a server.

The data displayed in both is identical - an image and a couple of TextViews. My Cursor-based ListView has 3000 rows, the JSON-based ListView has about 30. However, scrolling down the list is significantly faster for the Cursor-based adapter. For the JSON-based lists, the data is all fetched before the rows are made visible. Images for both types of lists are downloaded on-demand.

I have both ListViews configured identically - both with fastScrollEnabled, scrollingCache and smoothScrollbar set to true.

I'm looking for leads on how to go about trying to figure out what's going on here and to potentially fix it so that the JSON-based ListViews as as fast as the Cursor-based ones.

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Android :: Refresh Droid ListView After Adding / Deleting Dynamic Data?

Feb 12, 2010

I want to refresh an Android ListView after adding/deleting dynamic data.

Can any one tell me how to achieve this?

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How To Take Data From Edit Text And Times It Against A Spinner Value - Dynamic Update

Mar 11, 2012

I'm trying to make a simple order system. So the user selects a burger type from a spinner, then the user can enter in the quantity and then there is some math taking place in the background which sets a text view at the bottom with the total price. I'm not sure what method I'm meant to use so that it is updated dynamically when the user changes the text view quantity.

If i just say that all burgers are 2.50, i need some sort of method saying, if/when data is entered into the edit text , take that data and then times it by 2.50 and set it in the total text view below. I'm just unsure on the method part of it so it's dynamic and will change when the edit text quantity is altered.

Code:
package placeorder.com;
import java.util.Random;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
[code]...

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Android :: Transition Between Data In Single Dynamic View In Android?

Jun 20, 2010

Let me start out by saying that I feel like there should be a very simple way to do this, and it's entirely possible I'm missing something very simple. But all the examples I find for transition animations (push left out, push right in, etc.) deal with moving from one view to another. What about an application that only has one view, but dynamically changes the data feeding that view? The best common example of this is the base calendar app. It has identical views, but when you swipe forward or backward the date of the view transitions with a swipe animation. How do I reproduce this? Surely I don't have to inflate ViewFlippers for the same view? And if so, what is the best way to go about this?

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Android :: Read Data From Database And Show It In Table Layout Form?

Nov 3, 2010

I want to read data from database and displayed it in table layout form. table will contain n rows and 2 columns. But row size is not fixed then how to show them in table layout format?

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Android :: App Lists And Uses

Nov 26, 2009

Is there a tread where they list a list of apps and what they do ,rather than brows the market?

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Android :: Lists In Tabs

Jul 12, 2010

I'm new to android development but I have run through various tutorials and am slowly grasping how to develop apps. I modified the Tab Layout tutorial on the android dev website to fit my needs, and now I need to add a list on to each tab I have created. there are a total of seven tabs and each will have it's on specific list. If someone could point me in the right direction to adding a list per tab that would be great. Each tab has it's own class file, would I add the list items as strings in the strings.xml then add code to each tab's class file in order to populate the tab? This was the only thing I have found so far, but it hasn't worked.

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Android :: Empty Lists

Aug 19, 2009

Does anyone know if it's possible to show a "Currently have no items" type view in a ListActivity when, obviously, you have no items?

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Android :: How To Add The Separator Between The Lists

Sep 29, 2010

How can i add separator between the two lists on a single screen.

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Android :: How To Create Many Lists

Jan 10, 2010

I am trying to create a todo list application on android. I am stuck because at the moment I dont know the way to create many todo lists. I have created the GUI for one list, using listview. entries of the list are added by the user when running the application. Particularly i dont know how to pass a list object, if i create new one.

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Android :: Using The Same ListView For Different Lists

Oct 12, 2010

I have a 3 buttons, say LanguageButton, CountryButton and PinCodeButton. When LanguageButton is pressed, I must display a list of languages. Similarly for CountryButton a list of countries and so on. Only one list is to be displayed at a time.

My question is whether it is better to define a single ListView in my layout or 3 separate ListViews for each list in my layout!

I tried to use a single ListView and set corresponding adapters when different buttons are pressed, i.e in onClick() of languageButton, I give setAdapter(languageArray);

But my doubt arose in implementing the onItemClick() of the list. Because what must be done whenfirst item is clicked in languageList is different from what must be done in countryList. Hence that would add to more code in the java file.

So I am just wondering whether I should simplify my onItemClick() code by defining separate ListViews, or should I simplify my layout and add logic to code?

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Android :: Complex ListView Example With Complex Data / Layout Of Each Row?

Feb 16, 2010

Im pulling a list of product objects from a database call and I want to build a ListView of the data in my activity with a non-scrolling header and footer. Each row will consist of a product thumbnail, some data and a button arranged horizontally. I understand that using the ListView I can inflate each row using a separate layout. Most of the examples Ive seen using ListView just show a simple array of strings that fill the whole view of the activity, but most real-world examples will be more complex and I can't find any good examples that explain how all these pieces fit together. Does anyone have any pointers to sample code with a good explanation ?

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Android :: Graphically Pleasing Of Lists

May 26, 2010

How to make lists look different than your everyday average black list or more graphically pleasing than you usually see in android apps. I've looked through google code but haven't found too many. I'm looking for different and eye catching lists. I hope this question isn't too generic. Also i'm open to anything, code, examples, blog posts, etc, you name it. I've really struggled with lists and making them look more snazzy. I'm talking more the code level not the graphics or icons used.

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