Android :: Alignment Of View Elements Within LinearLayout
Feb 7, 2010
I have a vertical LinearLayout that contains a custom View that I've defined in my app and and a TextView. I'd like my custom View to be aligned on the top of the screen and the TextView to be aligned at the bottom of the screen. Unfortunately, no matter what changes I make to the attributes of the XML file, my custom View always seems to be centered vertically when I run the emulator. The xml is like the following:
<LinearLayout.............
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Mar 10, 2010
I've put an EditText and Button into a horizontal LinearLayout but unfortunately the button is not aligned with the text field. In the Hierarchy Viewer the text field has a absolute_y of 30 while the button has 32. Please see screenshots of the Hierarchy Viewer here: http://picasaweb.google.com/sj1981/Android
The XML looks like this:...................
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Jun 2, 2010
I have a horizontal LinearLayout and in it I have EditText and Spinner elements. Which attributes I need to adjust so I would get proportional widths: I want EditText to take 3/5 and Spinner - 2/5 of all available width?
My code looks like this:
CODE:.....................
I tried setting android:layout_weight, but somehow it does not look "stable" enough for me - when EditText has no text - everything looks fine, but as soon as I start entering text into it - it starts expanding and Spinner shrinking accordingly...
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Mar 5, 2009
How do I reduce the spacing between the elements in a linear layout? I tried to set the padding to 0 as well as the vertical spacing but that didnt seem to help. I want the textview and the imageview to be flush together with no space between them. The following is my XML layout file but I dont acheive what I want with it. code...
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Jun 4, 2009
I have a list view which contains some 20 odd items along with a check box. Now when iam trying to delete an item by checking its checkbox,Now if I have six elements in this ViewList, which are visible on the emulator, then the same code just works fine. Problem arises when the list is long and it starts scrolling and some element are not visible.
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Nov 16, 2009
I have a ListView with an adapter extending BaseAdapter.I create a view (from a LinearLayout and I put some items ont it depending on some parameters. I have a textview, with a drawable and sometime another textview next to the drawable in this horizontal linearlayout. For some reason, this command doesn't seems to work. So when my textview doesn't fill the full width of the list, I can only click on the part of the elements with the widget on it. I have try playing a lot with the layout and I can't get this to work. The parameters seems to be ignore all together. Only hack that would work I found was to set a big minimum width on my linearlayout but I don't think that's the best solution.
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Mar 18, 2010
I'm trying to add views dynamically to a linearlayout. I see through getChildCount() that the views are added to the layout, but even calling invalidate() on the layout doesn't give me the childs showed up.
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Nov 10, 2009
I've a ListView where every element in the list contains a TextView and two different Buttons.I found a solution as described in my answer below. Now I can click/tap the button via the touch screen. However, I can't manually select it with the trackball. It always selects the whole list item and from there goes directly to the next list item ignoring the buttons, even though I set .setFocusable(true) and setClickable (true) for the buttons in getView().This causes that no list item is selectable at all any more. But it didn't help in making the nested buttons selectable.
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Apr 18, 2010
I am trying to layout 1 textview (upText) left aligned and 1 textview (downText) and an image view (image) both on the same line and right aligned.
How can I do that? I tried that, but both 'textview' and image view at left aligned.
CODE:....................
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Sep 24, 2009
I try to create my custom view inside a linearlayout. For example
<View android:id="@+id/ViewPaint" class="com.example.android.helloactivity.HelloActivity$DrawingView"/>
In the java source I created a DrawingView class which extends View. Unfortunatly it does not get instantiated. I tried to overwrite the ondraw() but without success. Code...
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Mar 31, 2009
I am rendering a ListView inside a dialog. The ListView elements are very simple TextView objects. The problem: whatever I do, they never take the full width in the list view, which has the side effect that the list view selector only covers the actual text, not the whole list entry (i.o.w., if the text of the entry is much smaller than the width of the listview/dialog, then only a tiny portion of the list element is highlighted when focusing it).
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Jan 2, 2012
how to detect the object I've clicked on within a LinearLayout which itself is a child window within a gridview. I've tried a few methods which I thought would work but none of them work. Within the gridview I can detect the correct child window (which in this case is the Linear Layout) but I cannot figure out how to detect the object within the LinearLayout itself.
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Feb 3, 2010
We are using TextView's Ellipsize function to scrolling text in it and there many other controls in our window. We noticed CPU would go up to 50% if text started scrolling. After digging deeper, we found all controls in our layout kept drawing when texts scrolling. We wonder why? And how to avoid all controls redrawing?
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Aug 21, 2010
If I have 2 LinearLayouts split %50/%50 everything is fine. Weights are 1 and 1. As soon as I add a TextView inside the top LinearLayout, it stretches that layout. I use "wrap_content" as the documentation says I should when it comes to weights. As you can see the red and green should be split evenly and text on grey background should be inside red box.
Here is the code:..............
Now if I switch to "fill parent" as follows it actually works but it creates another problem. Here is the code (so far so good):
So looking at above we were forced to use "fill_parent" and we would think like we fixed the problem but here is the problem if we are using "fill_parent" (I took out the textview just to show the problem, textview doesnt make the problem go away anyways):
As you can see I assign the weights 3 (top red) and 2 (bottom green) but what actually happens is they get flipped: The red becomes 2 and bottom becomes 3. Just measure the pixels too see.
Here are the results of the 3 codes: http://imgur.com/iVt8g.jpg
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May 25, 2010
I have a RelativeLayout that has two LinearLayouts in it. One is a bunch of TextViews and EditTexts that make up a form and the other is a ButtonBar that submits the form.
anyways, everything looks great in portrait, but when i switch to landscape mode the bottom TextView/EditText element is being hidden by the buttonbar.
screenshot to show the problem. as you can see some of the "email" textview and all of the email edit text are being hidden by button bar.
http://i45.tinypic.com/2dt7qmt.jpg
and xml:
CODE:............................
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Apr 9, 2010
I don't know exactly how to explain this problem, but I'll try. I have a ListView with several items. Each item has inside a TextView and two ImageView. I want the ImageView change when I click on them, and I want to open a context menu when I press for a long time into the ListView item.For the ImageView, everything works properly. For the whole item, I can show the context menu after a long press, but my problem is that the ImageView changes as well when I am pressing the TextView, for example.I hope you understand my problem. I think that all the children of a view are affected by an event in the parent, but I am not sure.
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Aug 31, 2010
Can we align our text line by line(I mean whatever the text we have selected that should be aligned instead of the whole text) in android text-view dynamically!
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Jun 25, 2009
Why is the following code causing an exception? The Code throws a "mBaselineAlignedChildIndex of LinearLayout set to an index that is out of bounds" exception.
CODE:..............
If l2 is dont added to l1 than it works.
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Jul 15, 2009
I know my original post (at http://groups.google.com/group/android-developers/browse_thread/threa..., I could not find a way to perform a reply, maybe it's too old) is not sexy, but I'm now facing that problem in many situations. Let me please rephrase what I attempt to do, and what my problem is.
I have a RelativeLayout made of three widgets (named 1, 2 and 3 on the illustrations below): one attached to its parent left border (labelled 1), one to its parent right border (labelled 2) and the third (labelled 3) inserted between the 2 previous ones (its left border is attached to the first widget right border, and its right border is attached to the second widget left border). The third widget (the middle/central one laballed "3") is far taller than the two others, and I would like the first and second items (1 and 2) to be vertically centered with the middle widget.
I have resorted to the "android:layout_centerVertical" attribute for both the first and second widget, but I do not get the expected result. See at the bottom the various layouts I'm mentionning. Could someone please help me, and tell me whether what I intend to do is feasible, and how? Thank you for your time.
Layout with no "android:layout_centerVertical" specified: ------- |1|3|2| --|3|-- |3| ---
Layout with "android:layout_centerVertical" set to "true":
--- |3| |3| |3| ------- |1| |2| --- ---
What I'd like: --- --|3|-- |1|3|2| --|3|-- ---
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Nov 2, 2010
I am trying to align my two image buttons (back and next) at the top of an image background and trying like below xml code.But both the images are overlapping on top left corner.
CODE:...............
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Sep 30, 2010
Right-most textview is causing some alignment issues. I'm not sure how I can alleviate this?
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Sep 3, 2010
I'm trying to create standard button in android with a background and some text in front but some fairly specific alignment. I want the text to be centered vertically and on the left with 20dp of padding. The alignment works but the padding doesn't. I know I could probably get the desired effect by putting a few spaces in the text but that seems like a hack and next I want to do a similar thing but with the text at the top so I would prefer a more elegant solution. Here's what I have:
<Button
android:layout_width="312dp"
android:layout_height="95dp"
android:id="@+id/gv_music_button"
android:text="Music"
android:textSize="30sp"
android:paddingLeft="20dp"
android:gravity="left|center_vertical"
/>
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Nov 2, 2010
I have three image buttons which i want to aligne center vertically.
I have layout something like this:
CODE:..............
Although i have tried frame and relative but then image are overlapping each other.
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Nov 24, 2010
Re-wording per previous request... I am dynamically adding TableLayouts at runtime. A view rundown looks like this... LinearLayout->ScrollView->TableLayout->Loop creating TableLayouts and TableRows at runtime. So basically I am looping and adding the following:
CODE:.........
Now everything gets added correctly, looks correct and scrolls correctly. However I am attempting to create an onTouch event which changes the background on the touched dynamically created TableLayout. Inside the onTouch for each dynamically created TableLayout I have a onTouch event that when called does the following:
CODE:..................
Whenever it calls the setBackgroundColor it messes up the alignment of every one of the dynamically created TableLayouts and makes them look like this:
LeftMiddleRight
Bottom
The entire code follows. I hope this is clear now.
CODE:.............
I have tried everything I can think of to keep it from doing this but so far I am unable to explain why or how to correct it. As long as I do not call the setBackgroundColor inside the onTouch everything scrolls and aligns as expected.
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Oct 6, 2010
I can't seem to find anywhere a way to programmatically change the the alignment of the button.
In the XML it is simply layout_gravity="Center" or something.
How do we do this in the code?
LayoutParams do not seem to cater for this.
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Mar 22, 2010
I'm try to change text color and align item in spinner to center of it how can I do this
here is my code
String[] li={"1","2","3"};
final Spinner combo = (Spinner)findViewById(R.id.widget30);
ArrayAdapter<String> a = new ArrayAdapter<String>(this,android.R.layout.simple_spinner_item, li);
combo.setAdapter(a);
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Oct 27, 2010
I have a relative layout with various text view aligned in it.But the alignment goes wrong if value of any textview goes multiline.is there any way to avoid it?
The view required is something like :
Name: Abc
address: 23,abc street,fhjhg apartments,Country
Email: abcdgehfhf@mail.com
address text view has width set as wrap-content
but it appears like:
Name: Abc
address: 23,abc street
Email: fhjhg apartments,Country
abcdgehfhf@mail.com
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Oct 18, 2010
I have developed an application which en-composes list views and posted that .apk file in my htc device, the design and alignment everything works fine,but the problem When i am testing in various devices such as Morotolo Droid,Nexus Devices the alignment of Listviews goes wrong, so i planned to use the Layout folder as layout-hdpi,layout-ldpi, and layout-mdpi, for that i changed my manifest file as
<supports-screens android:largeScreens="true"
android:normalScreens="true" android:smallScreens="true"
android:anyDensity="true" />
Is it right putting android:anyDensity="true",also i used dp instead of dip. I went through this url, but still am not able to get a clear idea in this
http://developer.android.com/guide/practices/screens_support.html. so friends pls tell me(help me) to get clear idea in this and tell what mistakes i have doing. This is my main page xml code frnds.
<?xml version="1.0" encoding="utf-8"?>
<TabHost xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@android:id/tabhost" android:layout_width="fill_parent"
android:layout_height="wrap_content">
<LinearLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@drawable/background_retinav2">
<LinearLayout android:layout_gravity="center" android:foregroundGravity="bottom" android:background="@color/white" android:id="@+id/rl_1" android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="horizontal">
<ImageView android:paddingTop="3dp" android:id="@+id/starthideimage" android:layout_width="30dp" android:layout_height="35dp" android:src="@drawable/newback" />
<HorizontalScrollView android:paddingTop="8dp" android:id="@+id/gv"
android:layout_width="wrap_content" android:layout_marginTop="0dp"
android:layout_height="wrap_content" android:background="#ffffff"
android:scrollbars="none" android:layout_weight="1" android:foregroundGravity="bottom">
<LinearLayout android:id="@+id/san_tag" android:layout_width="wrap_content" android:layout_height="wrap_content">
</LinearLayout>
</HorizontalScrollView>
<ImageView android:paddingTop="3dp" android:id="@+id/Endhideimage" android:layout_width="30dp" android:layout_height="35dp" android:src="@drawable/newforward" />
</LinearLayout>
android:id="@android:id/tabs"
android:gravity="bottom"
android:layout_gravity="bottom"
android:listSelector="@color/gray"
android:layout_width="fill_parent"
android:layout_height="wrap_content" /> </TabHost>
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Jul 28, 2010
why the everything (date, city, weather, temperature, weather icon) under the clock on my beautiful widgets' home widget is shifted down a bit causing everything to fall off of the skin and not align properly? This has happened to all the skins / icons combinations I have tried. I have uninstalled and reinstalled, but alas the problem still remains.
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Nov 16, 2010
Not sure where the issue lies, with Android itself or launcher pro, but I have a strange issue where the icons on the bottom row of my home screen are out of alignment.
The two on the left, SMS and Mail, are widget icons for counters and the two on the right are direct app launchers, but yesterday they stared to show out of alignment.
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