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:....................

Android :: dynamic layout change during runtime


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Android :: Change LinearLayout Layout At Runtime

Aug 25, 2010

I want the ability to re-arrange Views in a LinearLayout, without specifying specific pixel locations, at runtime. for my proof of concept, I have a layout with 2 TextViews, one red, and one black. The red TextView is on the left. I want onClick to set it to be on the right, without adjusting margins, as if I'd re-written the XML of the layout, with the red TextView second.

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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 :: 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 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.

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Android :: Instantiating A Layout Defined Via XML At Runtime

Oct 18, 2010

I have a ListView that I want to populate with objects whose layout is defined via XML. Is there a way to instantiate a layout at runtime, editing stuff like the Android layout ID, etc., and then load the new layout into the list?

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Android :: Building / Using Runtime Generated Layout XML

Dec 21, 2009

I am currently working on a project which requires me to use an XML document to render a form on an Android device. The form must be fetched and displayed at run-time. I am wondering if there is a way to tag the form XML, transform it using XSLT into an Android layout XML, and then have the device render it.

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Android :: How Set Button's Layout Width At Runtime?

Oct 15, 2010

i' making a remote-app, so i need a varying number of buttons, grouped by tableviews and tablerows.i can create the fix ones (that must alwasy be available) at designtime via xml, making use of the layouts making all buttons fit on every resolution.but there are buttons i have to create at runtime.to make them behave the same way as the fixed ones, i need to assign the layout width, -height and -weight values.i was searching the whole documentation, but there it's alwas done in xml, no word about runtime / matching routines.

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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 :: Any Set Style Method At Runtime In Layout File?

Feb 1, 2009

I created my style in styles.xml, lets say MyStyle. I can use it in any layout file by style="@style/MyStyle". Also my generated R class have R.style.MyStyle, my question is if I can use it at runtime to "setStyle" - unfortunately View doesn't have such a method. If not what is R.style.MyStyle used for? (I already know that custom themes IDs are also in R.style and can be used to setTheme, but MyStyle is not a theme).

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Android :: Choose Button Layout To Include At Runtime

Dec 17, 2009

I have a complex dialog-layout that has to be customized for small screens to decrease its height on such devices. This can easily be achieved by decreasing the height of several single Buttons and Textfields in the layout, each by a small amount. Of course much of the layout still stays the same, so I figured I could use the <include/>-tag. This was the idea:

/res/layout/dialog_layout.xml ==> includes "@layout/include_button_layout"
/res/layout/include_button_layout.xml /res/layout-small/include_button_layout.xml

I figured that android would choose which button-layout to include at runtime. I couldn't get it to run, so I guess I was wrong. And if so, can anyone confirm whether this is the way to do it?

/res/layout/dialog_layout.xml ==> includes "@layout/include_above_buttons"
==> includes "@layout/include_button_layout_default"
==> includes "@layout/include_below_buttons"
/res/layout/include_above_buttons.xml
/res/layout/include_below_buttons.xml
/res/layout/include_button_layout_default.xml
/res/layout/include_button_layout_small.xml
/res/layout-small/dialog_layout.xml
==> includes "@layout/include_above_buttons"
==> includes "@layout/include_button_layout_small"
==> includes "@layout/include_below_buttons"

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Android : Load Layout Dynamically At Runtime In Droid?

Nov 20, 2010

My application requires 2 screens and for this I have created two different XML layout files using RelativeLayout. One layout file loads whenever I run my Activity. Now I want to load the second layout on to the same Activity , when user click on a button in OptionsMenu and also when user press Back button the first screen loads instead of exiting the application. So that i don't need to create another Intent in my application.

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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 : How To Change App Names On Runtime

Mar 22, 2010

Is there a way that after install a app, user can have the option to change the app name through a configuration page in that app? Where are all app names saved in the system?

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Android :: Dynamic Change To Options Menu

Sep 12, 2009

I am trying to manage the options items, making one button visible and another invisible based on whether a background service is active.

Here's a snippet of my menu/option.xml: <item android:id="@+id/arm" android:title="Arm" /> <item android:id="@+id/disarm" android:title="Disarm" android:visible="false" android:enabled="false" /> ......................................

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Android :: Runtime Language Change Support

Mar 8, 2010

I am developing an Android App which communicated with a server. User can select a language of his choice at startup or during the App execution lifetime. After selecting the language, the corresponding XML file is downloaded from server according to language which will map the "Values" of Application strings according to that language. Can I do something like replacing the default Strings.xml which contains English names(Say by default) to the language selected by user. Better will be adding an XML file per language and referring it runtime directly.

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Android :: Change Size Of LinearLayout On Runtime?

Apr 15, 2010

How to change the size of LinearLayout when it is runtime ? I've set the size dynamically when it is runtime. But no luck. Didn't change the size of LinearLayout.

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Android :: Orientation Change Runtime Option

Apr 24, 2009

Is it possible to have a user choose how an app should respond to orientation changes? I have it set to android:screenOrientation="sensor" in the manifest but I would like users to be able to turn this on and off or set landscape or portrait orientation permanently.

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Android :: Prevent Orientation Change At Runtime

Apr 15, 2010

Well, preventing an orientation change is easy. But what about doing it at run time.

Say, I have an activity which supports orientation change in normal situations. It has say three Edit Texts.

There's also a button, which when clicked would do some processing in a thread while showing a ProgressDialog which is not cancellable.

Ok, so till the user hits the Button, I want the activity to be able to adapt the orientation changes. I have two layouts files for each orientation with different layout schemes.

What I want is this. Once the user clicks on the button, and the ProgressDialog is showing, I don't want the activity now to be re- created again when the orientation changes. So, before showing the ProgressDialog, is there any way to tell the Activity not to handle Orientation change?

Also, once the process is complete, and the ProgressDialog is removed, I want the Activity again to be able to handle orientation changes.

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Android :: Change Progress Bar Drawable At Runtime?

Apr 7, 2010

How do I change progress bar drawable at runtime? I have set of drawables and I thought setProgressDrawable would change the drawable but it does not seem to work on horizontal progress bar.

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Android :: Can't Change Width / Height At Runtime - Way To Do

Aug 26, 2010

I want to have a grid with 3 columns and 3 rows and an image button in each cell (center of cell)

i tried with gridview but i can't fix the number of rows
i tried with a tablelayout and 3 tablerows, but i can't change width/height at runtime.

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Android : Change The Height Of A Webview On Runtime

Feb 26, 2010

I have a webview and a table containing 4 buttons. I have set the height of the webview to 400px, so that the buttons are displayed at the bottom of the screen, in portrait mode. My problem is, when changed to landscape mode the buttons are not visible. So I need to change the height of the webview on runtime, when orientation is changed. Do anybody know how to achieve this? I am able to capture the orientation change, using 'onConfigurationChanged' function.

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Android :: Keep Dynamic Views Focused Through An Orientation Change?

Nov 9, 2010

If I have a layout with lots of EditText views in a LinearLayout and the user focuses the third one down and flips out the keyboard to start typing, the entire layout is destroyed and recreated through the activity lifecycle. When everything is done, however, the third EditText is given focus again and the user never knows that anything happened and types away.

I am creating a similar layout, but due to the nature of my data, I have to dynamically create the list of EditTexts, mixed with some other views. The default layout has one EditText at the top, a ScrollView with a LinearLayout child (which will be filled with EditTexts later), and some action buttons at the bottom. I fill the LinearLayout with all the EditText fields I need (based on extras passed via intent).

This part works quite well, but the way the activty handles Runtime Configuration changes is broken now (from a UI perspective). Now if the user focuses the third EditText (which was dynamically created via new EditText()) and flips out the keyboard, the layout is destroyed and recreated, but focus is always given to the permanent EditText at the top of the screen.

Is there something I need to do when adding my dynamic views to make sure they can keep focus through orientation changes? is there a way I can work around the issue and force focus to be given to the last view that had it before the change?

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Android :: Change Background Image Of Dialog Or View In Runtime?

Aug 9, 2010

I have a card game I created in android and it is possible to show the scores at any given time by clicking a menu option. I would like that scores dialog to show a different background image when it's loaded depending on factors like who's leading, etc. In my constructor, I have the following relevant code:

public ScoresDialog(Context context) {
super(context);

this.setTitle(R.string.scoresDialogHeading);
setContentView(R.layout.scores_view);
...
}

I have tried getting that view to change it in the showDialog method i wrote like so: findViewById(R.layout.scores_view).setBackgroundColor(Color.BLUE); However, I got a NPE... I tried moving this statement to the onStart method, thinking that the view is not yet initialized but got the same error... Any thoughts on what the right way to do something like that is?

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Android :: Possible To Load A Layout XML At Runtime And Load Into Activity?

Sep 4, 2010

Is it possible to load a layout XML at runtime and load into activity?

In my app, I have various types of data like Person, Company, City, etc; The requirement is to dynamically load the layout, find views by tags (property names like Person.name, Person.address) and then fill in data. For example, if user has selected an object of type Company, we want to load a company.xml layout, inflate it and then associate various properties (company name, company slogan, city, address, revenue) to tagged views. One possibility I see here is - each view in the layout will be associated with property-name as tag and then appropriate data will be loaded in appropriate views.

What should be the best design you would recommend?

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How To Change Speed Animation At Runtime

Mar 1, 2012

i have a list sprites in drawable folder. One xml file with:

PHP Code:

<?xml version="1.0" encoding="utf-8"?><animation-list xmlns:android="http://schemas.android.com/apk/res/android" >    <item android:drawable="@drawable/fire_00000" android:duration="400" />    <item android:drawable="@drawable/fire_00001" android:duration="400" />    <item android:drawable="@drawable/fire_00002" android:duration="400" />    <item android:drawable="@drawable/fire_00003" android:duration="400" />    <item android:drawable="@drawable/fire_00004" android:duration="400" /></animation-list>

i used AnimationDrawable to run sprites on ImageView, now. i want to set duration properties by hand, if i have a seekbar to change this. How can i do that?

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Android :: Does Change Background Will Change Padding Of Linear Layout

May 21, 2010

I have the following linear layout. What I don't understand is if I set the background to another image, the padding information are reset. Is there a way to prevent this?

<LinearLayout android:id="@+id/aPanel"
android:orientation="horizontal" android:layout_width="fill_parent"
android:layout_height="wrap_content" android:background="@drawable/bkground"
android:paddingLeft="15dp" android:paddingRight="15dp">

<!-- some children here -->
</LinearLayout>

I see the position of the children get shifted when I change the backround drawable of the linearlayout 'aPanel'.

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