Android :: Creating Views Dynamically

Dec 13, 2009

In my main.xml layout file, I define a FrameLayout. Then in another layout file (say overlay.xml), I define another layout.

At runtime (onCreate) I want to create a new View object, set it's layout with overlay.xml, and add it to the frame dynamically. I need access to the elements of the overlay, to change text etc.

Android :: Creating views dynamically


Android :: Dynamically Changing Views

Jun 18, 2010

I'm trying to learn how to build apps for Android. The first simple app, which will become a component of a bigger app I hope to build, is to have a button on the screen where, when tapped, it adds something new to the view. For instance: Imagine a layout that only has a button:

[Create!]

When that button is pressed, the view gets a new row added to it:

[Create!]
A Something!..............

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Android :: Add Views Dynamically Or On Top Of Other Components

Nov 19, 2010

I use a LinearLayout and first I have a MapView and below the map I have a TableLayout with informations fields.

Now I would like to add additional information fields (e.g. a new TableLayout) when the user select a specific menu item on the Options Menu. I would like to have these fields either between the MapView and the TableLayout, or on top of the bottom area of the MapView.

How can I add this TableLayout with additional information fields dynamically after the user has selected a menu item? How can I show it below the MapView or on top of the bottom area of the MapView?

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Android :: Creating Softkeyboard Dynamically

Mar 15, 2010

Is it possible to write an Softkeyboard without XML or is this the time I'll need it?The idea is: I have an Arraylist with buttons which have a specific position in the layout, height, width, text etc. Those buttons should create my keyboard by converting them into keys.If this won't work, my second idea is, to write a XML-File out of Java.I wonder if one of these ideas are possible.

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Android :: Dynamically Added Views In Linearlayout

Mar 10, 2010

Dynamically i am creating the linear layout and adding the views to linear layout every 5 sec i need to update data to linear layout from db when i check logger output it is adding to linear layout but gui it is not updating for every 5 sec updation i am using scheduleatfixed timer task.

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Android :: GenerateId - Method For Dynamically Generated Views

Aug 30, 2010

Is there (or should there be), a generateId() method for dynamically generated Views? Take the RadioGroup example in APIDemos|App|Views. Radio buttons are added dynamically. For each button, you have to call setId(). To be notified when a radio button is selected, you register a onCheckedChange listener on RadioGroup and the callback method is oncheckedChange(RadioGroup, int checkedId). Since we are notified only the id of the checked view, shouldn't there be a way to uniquely generate the id? Say, a View.generateId() method... In the example, the ids are statically defined in ids.xml. However this limits the number of radio buttons. I have a real world example too: a Radiogroup with each choice representing a Wifi hotspot. So one cannot know in advance the number of hotspots.

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Android :: Using TabHost With Dynamically Built - Pre-existing Views

May 25, 2009

I have a remove assistant app, which allows customers to perform a subset of functions of a desktop application, untethered. Results are communicated back & forth via messages left at a license server. In order to have a single source for the logic of the assistant, yet run on multiple platforms (Swing, MIDP, & Android), I write a driver composed of Database, Network, & Display pieces.

The Android driver is nearly complete, but I run into a brick wall when it comes to Tabs. All views are instanced calling code, not XML defined. I already have the view before I try to add it.

I tried sub- classing TabHost:

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

As is shown in the code, it errors in setup. Looking further down in setup() I will also get this exception too: Your TabHost must have a FrameLayout whose id attribute is 'android.R.id.tabcontent

Is there a way to trick setup() into instancing me mTabWidget & mTabContent members?

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Android :: Orientation Problem While Dynamically Loading Views

Jul 8, 2009

I am trying to load textView and CheckBox view dynamically to a LinearLayout. i am getting some Orientation problem while doing the same.I want these two view in a single row but i its coming as in different raw.

Below is may code:

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

layoutxml is

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

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Android :: Dynamically Sizing Views As A Percentage - Or Similar

Mar 8, 2010

To use as an example: lets say that I have 2 EditTexts and one Button that I'm using as a login form. I want the EditTexts to be the same size, one after the other, with the login Button half their widths. Something like this:

The only way that I've been able to find to make the button 1/2 the width (but still maintain it's dynamic sizing) is to use a TableLayout with an empty view as the first field. Something like this:

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

That feels like a god-awful hack and there has GOT to be a better way. Do you know of one?

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Android :: Generate / Create Ids For Views That Are Created Dynamically?

Oct 15, 2010

I 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?

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Android :: Apply Styles To My Views At Runtime Dynamically?

Aug 13, 2010

I'd like to dynamically apply styles to my views at runtime.
Is there any method like View.setStyle(int style)?

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Android :: Creating Buttons Dynamically / Select One And Deselect Other?

Jan 13, 2010

I'm creating buttons dynamically.
for(int i=0; i<colSize;i++){
final Button btn = new Button(this);
btn.setText(SectionName[i]);
btn.setTextSize(10);
btn.setPadding(8, 3,8, 3);
btn.setTextColor(Color.WHITE);
btn.setTypeface(Typeface.SERIF, Typeface.BOLD);
btn.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
//***Every time that I click my button is selected !:)
btn.setSelected(true);
} } );
}
But how could I deselect the other buttons that were selected, I just want one Button selected!

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Creating Progress Bar Dynamically?

Aug 26, 2013

I have "Class Checkin's" Which have a max amount of people who can be checked in. So on my application I have the Class Time and under each of these class times, I want to have a horizontal progress bar that adds one to the bar each time someone checks in (On my web application I am using jquery .progressbar).

Currently I have the following:

HTML Code:
private void createProgressBar(ArrayList<Integer> array, Integer maxProgress){
View BoxProgressLayout = findViewById(R.id.BoxProgress);
Iterator<Integer> iterator = array.iterator();
while(iterator.hasNext()) {
ProgressDialog progressBar = new ProgressDialog(BoxProgressLayout.getContext());
progressBar.setCancelable(false);
progressBar.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
progressBar.setProgress(0);
progressBar.setMax(maxProgress);
progressBar.show();
}
}

In order to add the progress bar to my Progress layout. But the progress bar doesn't appear on the page. Is this the best way to go about this? or am I going to have to draw my own progress bar that increments and fills by a percentage each time someone checks in.

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Android :: Android Handling Dynamically Added Views While Orientation Change

Oct 27, 2010

I have a ViewGroup that gets inflated dynamically. I have set Id's to all the inflated views. I am still not able to retain the inflated ViewGroup whenever the orientation is changed. Any particular check that i am missing here ?

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Android :: Android - Dynamically Creating Controls And Orientation Change

Jan 29, 2010

Currently I am working on an Android application that is dynamically creating controls. Everytime a user would click a button a new EditText appears below the button and the user can interact with the EditText. However if the screen orientation changes, the EditText's that the user created also disappears.

Code sample of user creating a EditText: (located in a onClick(), p is basic layoutParamas, and layout is a LinearLayout located undearneath the button).........

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Android :: Creating GUIS Dynamically On Android

Nov 13, 2010

I'm trying to make an android app (I'm new in the Android programming world), and I'm having problems creating the GUI. The point is that I get information of some data that is divided in days... The problem is that I don't know, until I retrieve the information, how many days the GUI should display.

The grey part will be a TextView, and, also, the black part will be another TextView with multiple lines. So, the point is, how can I do to have multiple TextView's without knowing before the exact number? I suppose that I can't declare them in the layout.xml. The only solution that I've been thinking about is to create in the layout 7 pairs of TextView and, when I know the exact number, just use what I have to, and don't use the others... (It's a bad solution)

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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, 2010

I 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.

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Android :: How Can Update The All The Views Inside A TabHost When Pressing On A ContextMenu Item From Within One Of The Views

Nov 16, 2010

I 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?

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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, 2010

I 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:.................

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Android :: Switching Views With RadioButton And Saving Views In Bundle

Mar 6, 2010

I 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.

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Android :: How To Align Views In The Middle Of Another Views Baseline

Jun 16, 2010

How 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.

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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, 2010

Is 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.

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Android :: Programmatically Add Views To Views

Mar 7, 2010

Let'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.

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Android :: Dynamically Get Drawables By ID

Mar 10, 2010

I want to take a byte and append it to a resource ID to be able to get the image that corresponds to that numbered deck in the game. It was easy to with paths on other devices, but with the Resource ID's I am unsure how I could go about do this.

Here's what I have now:

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

In my Blackberry version of this, I simply had:

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

Is there a way to accomplish something similar using Resource IDs on Android?

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Android :: How To Dynamically Do This In Code Rather Than XML

Jul 20, 2010

I would like to define the following layout (which is currently an xml file) dynamically in my code.

The end goal is to have the ability to conditionally include certain pages in my viewflipper. code...

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Android :: How To Set Logo In Title Bar Dynamically?

May 1, 2010

In my app i want to set the logo in the title bar. but depending upon the size of the device how could it be set,so it may be dynamically possible.

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Android :: Font Typeface Dynamically

Jul 13, 2009

I've learned that to set typeface needs font to be under asset folder how to dynamically load the ttf file to be used in code? or maybe how in runtime to add ttf file into the asset folder? is there any solution for this problem?

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Android :: Dynamically Grow Listview

Nov 2, 2009

I am trying to make ListView which should display data from db. But the db is filled slowly so want the entries in the ListView to grow dynamically according to the elements in db. For example on a desktop music player when you import a folder to the music library the list with songs is filling in real time with the newly added songs. So how can i get this working on android.

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Android :: Dynamically Loading ListView

Sep 28, 2010

I want to dynamically load a ListView, for example, load them during the scrolling so its not loading all 100 posts I have. How can I achieve this?

I have looked at similiar solutions here at SO, but since I not got it to work, I asked this question.

My code:.............

I have in the same .java file, functions to download the info from the web and loop through 100 items, like this:

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

And then it add a new order correctly and so on. But now!(?) I want to have so when the first item is loaded, it should appear and when scrolling it loads gradually.

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Android :: Modify Strings.xml Dynamically

Apr 21, 2010

I want to implement a "Settings" section in my application, and I want that when the user selects whatever, one of the strings from string.xml will change its value according to the user selection. Is this possible at all? any ideas on how to implement it?

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