Android :: How To Dynamically Remove Widgets From Layout Inside A Layout

Sep 6, 2010

I have LinearLayout. Inside to that i have added one more Linearyout ( checkbox & text ).

(LinearLayout) one textView, (LinearLayout) Checkbox,textview , one textview

Now whenever clicks the checkbox, i need to dynamically display EditBox after the checkbox.

code:..........

On the click of checkbox listener i added a code like below.

code:.........

I want to the layout which was added earlier.

Android :: how to dynamically remove widgets from layout inside a layout


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Android : Layout - Change The Text Color Of The Textview Inside The Listview Dynamically

Oct 17, 2010

Can I modify android.R.layout.simple_list_item_1? For eg., I want to change the text color of the textview inside the listview dynamically. For this, I need to get to the textview and change its color.. How can I do that?

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Android :: Android - Nesting Relative Layout Inside Linear Layout

Oct 15, 2010

I have the following code in my layout.xml.

code:............

In the eclipse Plugin layout creator, the EditText and button are shown properly. (see the below screenshot)

But on the device and emulator, the button is not hidden. (see the below screenshot)

why the button is getting hidden in the device?

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Android :: How To Dynamically Include A XML Layout

Oct 28, 2010

I want to decompose my UI into several XML Layouts. The first one would be the main layout, and the other ones would be the content layouts.

I would like to be able to set which content_layout should be included dynamically during runtime, so I don't want to set a "layout="@+layout/content_layout" in my XML file.

Here are my layouts:

main_layout.xml:

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

content_layout.xml:

CODE:.......

content_layout2.xml:

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

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Android :: Add Xml Layout Dynamically To ScrollView Droid?

Nov 24, 2010

I want to add xml layout dynamically to scrollview in my application . but it is showing error.

This is my code...

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Android :: Change Dynamically A ListViews Item Layout

Mar 31, 2010

I want to know how to change dynamically a ListView's item layout. To be exact, i want to know the method that the ListView's bindView method is called at runtime. if the bindView method is artificially called by a other method. then i will change a ListView's item layout.

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Android :: Dynamically Adding A View To Activity Layout

Aug 18, 2010

I have a custom view (an extension of a TextView) that I want to dynamically add to my Layout (don't want to include it in the main.xml file).

The book says to fetch the RelativeLayout using findViewById() in my java code then create a new instance of my custom view, then use addView on the RelativeLayout to add the new view.

I'm not getting any errors, but when I click my button to add the new view, nothing is happening (view isn't being added). Do I need to set additional properties on my custom view (layout width, layout height for example) in order for it to be shown?

Adding code

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

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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 :: Display An Application Inside A Layout?

Mar 1, 2010

I would like to know if it's possible to display an activity inside a layout of my activity. For example I would like to display the Phone application inside a layout of my activity.

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Android :: Layout Not Displayed Properly While Loading Listview Dynamically

Apr 22, 2010

I am trying to laod the listview dynamically. There are three textviews inside a listview. The text to be set in the textview is fetched from the server. All this is working fine. I am able to fetch the text and am able to display it inside the listview.

The only problem is the position of the textview. The xml layout file is as under:

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

If I look at this xml layout in the eclipse layout tab then it is displayed properly. Problem occurs only when the text is fetched dynamically.

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Android :: Displaying XML-based Layout / Adding Text Dynamically

Sep 12, 2009

I have a LinearLayout defined in XML that I want to use repeatedly to display elements of a list. The XML-layout looks like this:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="@drawable/background"
android:paddingBottom="5px">

<TextView
android:id="@+id/destination"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:textSize="22dp"
android:text="@string/test_destination"
android:paddingLeft="5px"/>

<TextView
android:id="@+id/date"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:textSize="15dp"
android:text="@string/test_date"
android:paddingLeft="5px"/>

<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/info"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:paddingLeft="5px"
android:paddingTop="10px" >

I gather information about certain events from a webpage, and then I want to display all events in a list using the above layout for each event. My current approach is to have a LinearLayout as parent and then adding each event as a row.

Problem number one is to add the layout to each event (the number of events is varying). I.e., I want to dynamically inflate this layout for each event. I also don't want the text to be hard coded into the layout (as above) but added at runtime. I don't know how to do this. I have tried something like the following without any success.

LinearLayout eventView = (LinearLayout) findViewById(R.layout.event);
parentView.addView(eventView);


Problem number two is then to add these layouts to the parent view group and display it on the screen. When I try to do this using parent.addView(child), the program crashes at runtime and I can't figure out why.

It's kind of hard to describe the specific problem, since I'm new to GUI-programming on Android and I'm sort of programming by trial and error right now. Anyway, if you are able to help me with some of the problems it would be greatly appreciated. Linus

EDIT:
The problem now is adding text dynamically to the TextViews. I try this:

TextView dest = (TextView) findViewById(R.id.destination);dest.setText("myText");

only to discover that dest is null. Any ideas why and how to fix this?

EDIT 2:
I have narrowed the problem even more, but I really don't understand its nature. This is the trouble-method: Code...
it somehow works (even though the events are displayed in reverse order). Anyone knows what's going on here?

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Android :: Change Widget Layout Background / Hide It Dynamically?

Dec 9, 2009

Code...

I cannot find any information on how to change or hide the background image.

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Android :: Loading Layout From XML Inside Of Derived Class

Mar 4, 2010

Right now I have a class that extends LinearLayout and builds the view inside of the constructor using a series of addViews. I wanted to move this into an XML file, so I have the same view defined there. My problem is that I can't figure out how to load the XML file in the constructor of the derived class. I looked up the LayoutInflater stuff, but I wasn't entirely sure how to use it in that context. Do I need to call addView() with the result of the LayoutInflater? Is this even possible? The other issue is that the context object that is passed in doesn't have the LayoutInflater methods. I'm not sure if I need an instance of Activity to do that.

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Android :: GridView Inside Linear Layout Displayed In Tab

Aug 13, 2009

I am trying to display a bunch of image icons in a grid view, with some basic inductive text on the top. This layout is inside a tab pane. For some reason my application just Fore closes without any stack trace when I do this. Here is my lay out file and the corresponding code that uses it in a tab.

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/ android" android:id="@+id/welcomeLayout" android:orientation="vertical"> <TextView android:id="@+id/txtWelcome" text="@string/app_name" > </TextView> <GridView xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:padding="10dp" android:id="@+id/welcomeGrid" android:horizontalSpacing="10dp" android:numColumns="auto_fit" android:stretchMode="columnWidth" android:gravity="center" android:columnWidth="120dp" android:verticalSpacing="15dp"/>
</LinearLayout>......

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Android :: Start An Activity Inside Any Layout In Droid?

Sep 24, 2010

I have created a an activity named Example which have 3 LinearLayouts . I want to start an activity. So I used the following lines of code...

Test is another activity. As a result of the above code a new activity is called in new page. But I want to get the same resule or start the activity inside 2nd layout of Example class.

How to achieve this.

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Android :: Setup OpenGL View Inside A Layout?

Nov 8, 2010

How do I set up an xml layout where an OpenGL view is part of it? As I do now is set the OpenGL view as the only view with setContentView(). But I would like to create an xml layout that includes the OpenGL view. Lets say I want to have the OpenGL view mainly and a small TextView at the bottom.

Is this even possible? Or can an OpenGL view only be the one and only view?

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Android :: Create UI - Put Five Buttons Inside A Linear Layout

Aug 10, 2010

In my app I want to create something like this: I thought to put five buttons inside a linear layout, but the problem is how to show the inner items at run time. Every time i click on a button i want to show the proper items and hide the others.

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Centering Table In Dynamically Created Layout

Sep 28, 2011

i have tried almost everything i can think of to center a programitacally created table in a pragmatically created layout. I've tried all the usual layout params center setting but still nothing: Score List is a set of pairs of scores (Name, Score). I'm just looping through and adding them to cells in a table and its always aligned left when i run it.

ArrayList<Score> scoreList = new ArrayList<Score>();
public LinearLayout getHighScoresView(Context context) {
final RelativeLayout.LayoutParams layoutParams = new
[code]....

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Android :: Dynamically Adjust Column And Row Of A Table Layout Based On Orientation

Mar 9, 2010

Is it possible for my android application to dynamically adjust the no of column and no of row of my TableLayout based on orientation?

For example, when in landscape mode, the TableLayout is 3x2 and when
in portrait mode, the TableLayout is 2x3?

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Android :: Dynamically Display Graphics - Text In Layout / Can I Still Use Xml Have To Hard Code

Aug 3, 2010

If I want to dynamically display graphics or text in layout, can I still use xml or I have to hard code?

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Android :: Changing Values Inside Layout Included With Include

Oct 28, 2010

I have in many of my screens that re mostly constructed of LinearLayouts a FrameLayout that should take up the bottom leftovers of the screen (using layout_height="0dp" layout_weight="1") inside it there's a FrameLayout with gradients background and in it's middle with some padding lies a button with some text, naturally i need the text and onClicked properties to me different from screen to screen. I considered using <include > tag for the above compound in my layouts, but as far as i can see i can't really change (at least not in xml) the button text and callback, is that really so?

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Android :: Find Row / Column Of A View Inside Table Layout?

Feb 12, 2010

Suppose I have a view inside TableLayout, like this:

TableLayout tableLayout;
View view = (View)tableLayout.findViewById(R.id.control);


How can I find out the view's row/column within the TableLayout?

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Android :: Using ScrollView Inside Layout Xml File For A Widget - Got Error

Nov 22, 2010

I'm able to successfully use a ScrollView inside the layout xml file for an application. However, when I tried using a ScrollView inside the layout xml file for a widget, I get a "Problem Loading Widget" error as soon as I drop the widget in the emulator. If I comment out the ScrollView, then the widget shows up in the emulator. I've pasted my layout xml file below. Any thoughts on how to get past this error would be much appreciated.

<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:paddingBottom="3dip">

<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:paddingLeft="6dip"
android:paddingRight="6dip"
android:paddingBottom="3dip">

<Button
android:id="@+id/ok_widget"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="right"
android:text="@string/button_ok" />
</LinearLayout>

<ScrollView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:fillViewport="true"
android:layout_marginBottom="50dip">

<LinearLayout
android:id="@+id/linear_layout"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:paddingBottom="3dip">

</LinearLayout>

</ScrollView>

<RelativeLayout
android:layout_marginTop="-50dip"
android:gravity="bottom"
android:layout_height="wrap_content"
android:layout_width="fill_parent">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:paddingLeft="6dip"
android:paddingRight="6dip"
android:paddingBottom="3dip">
<Button
android:id="@+id/ok_widget"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="right"
android:text="@string/button_ok" />
</LinearLayout>
</RelativeLayout>
</LinearLayout>

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Save Dynamically Created Layout On Screen Rotation?

May 9, 2012

I am creating a layout dynamically when the activity first starts, the problem is when the screen is rotated it is hitting the database again to create the layout. How can I save the layout so it isn't recreated each time the screen orientation is changed?

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Android :: Systematic Distribution Of Views .xml Files Inside Layout Folder

Oct 14, 2010

I have multiple view. But for systematic distribution of views (.xml files inside layout folder). I would like to have different packages (/folders) inside Layout. Is It possible. @Attached : Screen shot. IF that is possible, is the following statement correct ?. If Not whats the solution?

setContentView(R.layout.payBill.payMyBill);............

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Android :: Access Views Inside Layout When I Reuse It Multiple Times?

Aug 6, 2010

I have read the Android UI trick 2 on Android developers, which tells people how to include a layout in another layout file multiple times, and give these included layouts different id. However, the sample here is overwriting the layout id, not the id of the views IN this layout. For example, if the workspace_screen.xml looks like this: And I include it three times in another layout file. Do I end up with three TextViews with id firstText, and another three with secondText? Isn't there an id collision? And how do I find the secondText TextView in the third included layout with findViewById? What should I input in the findViewById method?

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Android :: Scroll View Inside Linear Layout Forces Buttons Offscreen

Nov 4, 2010

I'm trying to build an activity that has a checkbox on top, a button at the bottom, and a bunch of other widgets scrolling in between. Conceptually that'sWhen it renders I get the checkbox at the top, the stuff scrolling nicely underneath, but the Button drawn offscreen (I assume) below the ScrollView. The only way I can get the Button to be visible is to hard-code the height of the ScrollView, which of course only works on one screen-size. I've tried all combinations of gravity and layout_weight I can think of to no avail. Am I using the right combination of Views? Anybody managed to get this working?

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Many Widgets In One Layout?

Dec 14, 2011

I'm building a layout where the user has to enter a lot of personal data, like full name, birth date, birth place, weight, sex, etc.. I'm using EditText widgets for capturing that information using the layout editor in Eclipse.

The issue I'm having is that after 4 or 5 EditText widgets I don't have any space left in the layout to drag and drop more widgets. I tried adding them manually in the xml view, but when I run the layout, I get a lot of them overlapped in the last row of the screen. I tried adding them to a ScrollView, but I had the same result. I can't find a way to continue adding widgets with the possibility to scroll down the screen so they can all fit in a single layout.

In Java Swing programming this is a trivial thing, so I don't think it's too complicated in Android development.

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Android :: Possible To Make Droid Layout Without Just Widgets?

Oct 26, 2010

Just something I have been thinking about. It is possible to create an android layout with just a TextView widget and no Layout code (e.g: inearLayout, ScrollLayout), but if I try to add anything else to the XML file all sorts of errors start popping up. Is it possible to create a Layout with just widgets?

Also, if it is, how?

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Make Widgets And Fields In Android Table Layout All Having Different Widths

Sep 4, 2013

how should i make widgets and fields in android table layout all having different widths ...in first row i have 2 fields but in second row i want to have 3 fields so there should be different width of fields in row2 than fields in row1.

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