Android :: How To Get All Children Views Of Layout?

Jul 9, 2010

Is there a way to get all the children views of a layout, from the Java code so that I can loop through them and set an attribute? Specifically, I'd like to set the "layout_width" based on the screen size. Since this "layout_width" would be the same for all the views, I'd prefer to loop through instead of calling each individual View separately by their id. The following is my main.xml:

<?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">
<LinearLayout android:id="@+id/myRow1" android:orientation="horizontal" android:layout_width="fill_parent" android:layout_height="fill_parent" android:layout_weight="1"> <TextView android:text="1" android:layout_width="wrap_content"
android:layout_height="50dip" android:layout_weight="1"/>
<TextView android:text="2" android:layout_width="wrap_content"
android:layout_height="50dip" android:layout_weight="1"/>
<TextView android:text="3" android:layout_width="wrap_content"
android:layout_height="50dip" android:layout_weight="1"/>
<TextView android:text="4" android:layout_width="wrap_content"
android:layout_height="50dip" android:layout_weight="1"/>
<TextView android:text="5" android:layout_width="wrap_content"
android:layout_height="50dip" android:layout_weight="1"/>
<TextView android:text="6" android:layout_width="wrap_content"
android:layout_height="50dip" android:layout_weight="1"/>
</LinearLayout> </LinearLayout>

Android :: How to Get all Children Views of Layout?


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 :: Drawing Children In Custom Linear Layout

Feb 9, 2010

I have a linear layout that I have overridden because I want to > dynamically add other views to it. I am trying to add some textviews > to it and I call addViewToLayout in the onLayout method. Can't you just add your views to the layout using addView()? I have one custom LinearLayout and this is what I do and it works fine. No need to override onLayout() or onDraw(). Maybe try that

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Android :: Block Click - Focus On Layout And On All Children?

May 26, 2009

I was wondering if its possible to block the onclick events on a layout and all the children inside the layout.

for example, I have a LinearLayout and inside that I have buttons and an editText. At a certain point I don't want the user to click on the buttons or edit the text. Is there a way to block that? Do I have to do it for each view? or I can do it for a Layout? What is the best way to do this?

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Android :: Linear Layout Focus And Children Change Foreground Color?

Nov 18, 2009

I have a LinearLayout with 2 text View as its children. How can I make the children of LinearLayout to change foreground color (in this case, the text color of the text view) when the linearlayout has focus?

<LinearLayout> <TextView android:id="@+id/name" android:layout_width="wrap_content"
android:layout_height="wrap_content" android:textAppearance="?
android:attr/textAppearanceSmall" android:textColor="?android:attr/textColorInverse" />
<TextView android:id="@+id/value" android:layout_width="wrap_content"
android:layout_height="wrap_content" android:textAppearance="?
android:attr/textAppearanceSmall" android:textColor="?android:attr/textColorInverse" />
</LinearLayout>

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Android : Way To Hide Views Within A Layout?

Oct 13, 2009

I have some optional views in my xml layout. Namely a radioGroup and buttons. How can I hide these programtically?

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Android : Way To Resize Views In A Layout?

Nov 15, 2010

I have a horizontal linear layout with multiple image views. Is there a way to resize these views automatically, so that all of them fit inside the screen? code...

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Android :: Using Views Declared In One Layout XML File In Other

Jul 30, 2010

I am newly working on android technology.I have use map view which is declared in another layout.I have to display in some part of may screen.can I use same map view or i have to create new mapview programmatically.In short i have to display map in some part of my screen.How can i do it?

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Android :: Child In Particular Place In Views Or Layout?

Sep 7, 2009

I am facing problem in fixing the child in particular place in views or layout.

1) Can I fix the child at the starting and ending of Layout directly?

2) Can I fix the child at the starting or ending of the view directly?

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Android :: Re Ordering Child Views Of A Layout

Aug 29, 2010

I have a number of child views, each child is a TableRow and I need to be able to change the order of the TableRows, such that I can swap the rows into any order. I know there is a method called removeAllViews() but I don't really want to remove and re-create the views if its possible to access and change the order. I really want the display to update as smoothly as possible, taking the minimum amount of time, is it possible?

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Android :: Add Custom Views To Linear Layout Object

May 31, 2010

I have a set of custom views that I would like to add to a LinearLayout object. However, the first object I add to the layout (I do this dynamically, during runtime) has a OnMeasure method that tries to get as much space as possible resulting in that it get's all the space LinearLayout object. This is correct behavior, but when I then add more objects following that I want the allocated area for the first object to decrease so the others will fit. As it is now, each following object will get zero space, and hence won't be visible.

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Android :: Way To Add A View To Overlap Other Views In Layout / Activity?

Apr 19, 2009

Is it possible to add a view dynamically that overlaps other views in the layout. I have Linear Layout defined for the activity. As part of the Layout I have a custom View. The content changes dynamically and sizes appropriately based on the content size, with fill_parent for width and wrap_content for height. But what I want is, dynamically take over the full screen and then based on a click go back to the normal mode. Is there a mode to display a view where - in it can overlap all other views in the layout?

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Android :: How To Adjust 3 Image Views In Linear Layout?

Aug 19, 2010

I defined a LinearLayout:

<LinearLayout android:id="@+id/top_menu"
android:layout_width="fill_parent" android:orientation="horizontal"
android:background="@drawable/backrepeat" android:layout_height="wrap_content" >
<ImageView android:id="@+id/topLeft" android:layout_height="wrap_content"
android:layout_width="wrap_content" android:layout_gravity="left"
android:src="@drawable/library_top_left"> </ImageView>

<ImageView android:id="@+id/topMiddle" android:layout_height="wrap_content"
android:layout_width="wrap_content" android:layout_gravity="center"
android:src="@drawable/library_top_middle"/>
<ImageView android:id="@+id/topRight"
android:layout_height="wrap_content" android:layout_width="wrap_content"
android:layout_gravity="right" android:src="@drawable/library_top_right"/>
</LinearLayout>

I'd like that one image is on the left side of the screen, one in the middle, and one on the right side. However all of them are on the left side.

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Android :: Make Animation Visible Above Other Views On Layout?

Aug 13, 2009

How can i make my animation visible above other views on the layout. i tried with the zorder adjustment but it didn't work out.

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Android :: Put Two Views In A Horizontal Layout To Aligned 1 To Left And Other To Right?

Jun 20, 2010

Let's say you want to have a TextView and a Button in a Layout with horizontal orientation. Can you have the TextView aligned to the left and the Button - to the right?

---------------------
TextView Button
---------------------

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Android :: Re-layout Views In Phone To Reflect New Dimensions?

Nov 24, 2010

I am adding a series of custom views to a LinearLayout. I have overridden the onMeasure method of these custom views, to return the dimensions based on certain parameters. Based on user input, I would like to change these parameters, to change the size of the views. How can I force the LinearLayout to "re-layout" it's children, to reflect the new dimensions?

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Android :: Some Views Not Aligned Correctly At The Bottom Of My Relative Layout?

Mar 22, 2010

I have problems getting some of my views aligned in a relative layout that I use inside a row of my listview.

Here is a screenshot from the layout builder in Eclipse, this is what I think it should look like:

The next image is from the emulator. Now the TestTestTest View is at the top and covers the name and distance Textviews.

This is my layout:

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

Shouldnt align_parent_bottom put the view at the bottom of the cell in the list?

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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 : Achieve Basic Layout In Droid With Proper Z-ordering Of Views?

Sep 14, 2010

How can I achieve the following layout in Android?

What I would like, is to have the 3 blue boxes top aligned in their view, and then I'd like to have the red box centered underneath the blue boxes, but so that when I animate the red box up, it slides underneath the blue box.

I have tried placing the blue and red boxes in different layouts, but as soon as I animate the red box up, if it goes outside the border of its layout, it disappears (I don't want the red box's layout to clip the red box, I want the red box to slide under the blue box so that the blue box occludes the red box.)

I have also managed to create this layout using a series of nested layouts, but because of the draw order, the red box always appears on top of the blue box. I attempted to use the bringToFront() method, but I found out that this only works on sibling views within the same layout. Unfortunately I can't get this type of layout while keeping all 4 views within the same layout. Any suggestions? (also, if anyone has better suggestions for the title of this question I'm all ears)

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Multiple Image Views In Linear Layout?

Jun 11, 2013

I am using a linear layout to draw a scalable background in my app. I am then defining multiple imageviews inside the linear layout, all of which are PNGs containing a transparency layer. I am wanting to overlay these transparent imageviews on top of the background. My issue is that only the first defined imageview shows on top of the background, any subsequent imageviews do not appear.

CODE: Note that imgSen1 appears properly with transparency overlaid on the background. imgSen2 does not appear. If I define imgSen2 first, and imgSen1 second, imgSen2 then appears properly, as if only the first defined imageview can be seen. I would like to have multiple imageviews with transparency overlaying the background.

<LinearLayout
android:layout_width="627dp"
android:layout_height="436dp"[code]...

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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 :: Defining Z Order Of Views Of Relative Layout In Android

Apr 10, 2010

I would like to define the z order of the views of a Relative Layout in Android.I know one of doing this is calling breakfront.Is there are better way of doing this? It would be great if I could define the z order in the layout xml.

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Android :: Layout Supporting "word Wrap" For Views?

Feb 13, 2010

I found this question asked over a year ago but no solution was found:
http://groups.google.com/group/android-developers/browse_thread/threa.
Essentially, I want to use a Linear Layout with horizontal orientation, but when the child views' total width is greater than the width of the screen, to wrap to the next line/row. In particular, I'm using a Radio Group (with radio buttons determined at runtime) where it would be much better to do this wrapping rather than use vertical orientation. Is there a layout that supports this?

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Android :: Child Views Of Particular Table Row In Table Layout?

Jul 15, 2009

Here is my screen description: It is a TableLayout and it contains multiple Rows. I have set TableRow as clickable, as I want to go to next screen on click of a tableRow. Everything I am doing through Java programming (instead of XML layout, because number of TableRows changes each time) On next screen, I wanted to display all the views of that particular clicked TableRow. Here the problem i am facing is how to capture particular tableRow on onclick() even and how do I get all the textviews of that particular Row. I tried to set id at runtime, and tried to get id of view, but it's not working, giving error resourcenotfoundexception.

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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 :: 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 :: FrameLayout And Positioning Children

Jan 26, 2009

i'm in final stage of writing my custom widget (quite similar to Home's sliding panel). it works quite well except one thing: i have some problems with positioning it in FrameLayout (see 3 rightPanel* Panels in main.xml in attached eclipse project).basically i don't like the idea i'm using there: setting layout_marginTop in panelHandle children.

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