Develop Reference

Linear Layout won't take the height of its parent in percentRelativeLayout

I am using Xamarin Android, and I have a list view with row views that have the following content in them:
All of these views are wrapped in a PercentRelativeLayout, because I want to keep the widths proportional. So the issue I'm running into is that since the two layouts on the left are left empty and filled at runtime (there is absolutely no way around this) their height is measured out to 0, which then sets the Rowview height to 0, and that then sets the controls layout off to the right to have a height of 0, which then stretches to the size of the largest control inside of it (ex:)
I have tried:
Using layout weights and a height of 0 to allow the layout itself to stretch to fill the parent
Using layout weights on the controls themselves within the layout
Scrapping a layout altogether, and simply wrapping the image buttons in the PercentRelativeLayout, and using layout positions to position them properly
Using percentage based layout widths and heights within the children to fill the height (this only seems to work for the width, but not height)
Adding dummy views as padding to push the controls layout into position
Adding percentage based margins to the layout itself, the children, the padding dummy views, and every combination of those
Not one single thing I have tried has had any effect, the only thing that affects the height of the linear layout is simply hard-coding the height.
My question then is how can I tell this layout to occupy the full height of the rowview once everything has been measured? (Please let me know if you have any other questions to help address this, I'm happy to oblige)
EDIT #1: Here is my xml for the rowview:
<?xml version="1.0" encoding="utf-8"?>
<android.support.percent.PercentRelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:orientation="vertical"
android:layout_width="400dp"
android:layout_height="match_parent"
android:id="#+id/LeadRowHolder">
<!--Tag Holder-->
<RelativeLayout
android:layout_height="wrap_content"
app:layout_widthPercent="80%"
android:paddingTop="10dp"
android:orientation="horizontal"
android:id="#+id/LeadTagLayout">
</RelativeLayout>
<!--Details Holder-->
<LinearLayout
android:layout_height="match_parent"
app:layout_widthPercent="80%"
android:orientation="horizontal"
android:id="#+id/LeadDetailsLayout"
android:layout_below="#id/LeadTagLayout"
android:paddingTop="20dp"
android:paddingBottom="20dp"
android:paddingRight="10dp"
android:paddingLeft="10dp">
<android.webkit.WebView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/leadShortDescription"/>
</LinearLayout>
<!--Controls Holder-->
<LinearLayout
android:layout_height="wrap_content"
app:layout_widthPercent="20%"
android:orientation="horizontal"
android:id="#+id/LeadControlsLayout"
android:layout_toRightOf="#id/LeadTagLayout"
android:gravity="center_vertical|center_horizontal">
<ImageButton
android:layout_height="50dp"
android:layout_width="50dp"
android:id="#+id/MenuCall3x"
android:background="#drawable/MenuCall3x"/>
<ImageButton
android:layout_height="30dp"
android:layout_width="20dp"
android:id="#+id/MenuFwd3x"
android:background="#drawable/MenuFwd3x"/>
</LinearLayout>
</android.support.percent.PercentRelativeLayout>

I've played a bit with your code, and the result seems good.
<android.support.percent.PercentRelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="5dp"
android:id="#+id/LeadRowHolder">
<!--Tag Holder-->
<RelativeLayout
android:layout_height="wrap_content"
app:layout_widthPercent="80%"
android:orientation="horizontal"
android:id="#+id/LeadTagLayout">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="this is a test"/>
</RelativeLayout>
<!--Details Holder-->
<LinearLayout
android:layout_height="wrap_content"
app:layout_widthPercent="80%"
android:orientation="horizontal"
android:id="#+id/LeadDetailsLayout"
android:layout_marginTop="5dp"
android:layout_below="#id/LeadTagLayout">
<android.webkit.WebView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:minHeight="50dp"
android:id="#+id/leadShortDescription"/>
</LinearLayout>
<!--Controls Holder-->
<LinearLayout
android:layout_height="wrap_content"
app:layout_widthPercent="20%"
android:layout_centerVertical="true"
android:orientation="horizontal"
android:id="#+id/LeadControlsLayout"
android:layout_toRightOf="#id/LeadTagLayout"
android:gravity="center_vertical|center_horizontal">
<ImageButton
android:layout_height="50dp"
android:layout_width="50dp"
android:id="#+id/MenuCall3x"/>
<ImageButton
android:layout_height="30dp"
android:layout_width="20dp"
android:id="#+id/MenuFwd3x"/>
</LinearLayout>
</android.support.percent.PercentRelativeLayout>
Let me know if this works for you at runtime (i've removed some background drawable files which you didn't provided to test this XML).
I've added a TextView inside the RelativeLayout to test his height

Incorrect height of RemoteViews notification when using linear layout

I've created a notification using RemoteViews with a custom layout. The layout structure is as below.
<LinearLayout android:layout_width="match_parent"
android:layout_height="match_parent" >
<ImageView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="center"
android:scaleType="centerCrop"
android:adjustViewBounds="true" />
<LinearLayout
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="6"
android:layout_gravity="center_vertical"
android:orientation="vertical"
android:paddingLeft="8dp"
android:paddingTop="8.0dip" >
</LinearLayout>
<LinearLayout
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="4"
android:divider="?android:listDivider"
android:dividerPadding="12.0dip"
android:gravity="center_vertical"
android:layout_gravity="center"
android:orientation="horizontal"
android:showDividers="middle|beginning" >
</LinearLayout>
</LinearLayout>
The effect of it all appears only in a fraction of the notification height, and not in the full height of the notification. E.g. check-out the buttons in the screenshot at http://i57.tinypic.com/14dzo9i.png (the middle notification is the focus of the question), which are in the last child of the parent LinearLayout, and should be all vertically centre-aligned.
My question is very similar to Height of notification incorrect "match_parent", but since there isn't a real answer present there, I'm asking this. The answer on that question does refer to a way to dynamically figure out the notification height. If that is the solution to use, I'd like to know how to use the height obtained from there to dynamically set the height of the remote view, since I don't see a height setter on the remote views object.
Please note that the height of the image is fine when I use a relative layout instead. Relative layout still has two problems: 1. the buttons are still not vertically centre-aligned and 2. I can only wrap content or fill parent, not divide the available space into the two children linear layouts. Screenshot: http://i59.tinypic.com/o1000j.png

Seems to be working on changing android:layout_height="wrap_content" to android:layout_height="match_parent" for the views within. Somehow missed it earlier, interesting though the behaviour for this combination of values.

Change your Layout to RelativeLayout and use param android:toLeftOf="#+id/...", android:toRightOf="#+id/..." to align your subView in layout.
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center_vertical">
<ImageView
android:id="#+id/image1"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_alignParentLeft="true"
android:src="#drawable/ic_launcher" />
<ImageView
android:id="#+id/image2"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_toRightOf="#+id/image1"
android:src="#drawable/ic_launcher" />
</RelativeLayout>

Equal button height for RelativeLayout (while still filling up all space)

I have an Android application that goes about like this:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<RelativeLayout
android:id="#+id/toplayout"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="0.90" >
<Button
android:id="#+id/button_1_of_10"
android:layout_width="70dip"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:text="#string/text_0x1701" />
<Button
android:id="#+id/button_2_of_10"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignRight="#+id/button_1_of_10"
android:layout_below="#+id/button_1_of_10"/>
<!--Another 8 buttons-->
<RelativeLayout
android:id="#+id/contentpane"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:layout_toRightOf="#+id/button_1_of_10" >
</RelativeLayout>
</RelativeLayout>
<RelativeLayout
android:id="#+id/actionbuttonslayout"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="0.10">
</RelativeLayout>
</LinearLayout>
I need the 10 buttons to fill up the entire height from the top to the footer (the 0.1 weighted RelativeLayout), while all the buttons keep an equal height. However, I want to know whether there is a kind of equivalent to the layout_weight from LinearLayout, but for RelativeLayouts, as it's not performant to have nested weights in LinearLayouts. I'm not really looking for other solutions, because I still have some thing to try, but I want to know whether or not this is possible?
My question, just to be clear, is: Is it possible to have an amount of Buttons with an equal height in a RelativeLayout and at the same time fill up all the available space?

To use weight you need to use a LinearLayout, just make a linear layout with the buttons take the space you want and then on each button inside have android:layout_height="0dp" and also a android:layout_weight="1"
You don't need to sum all the weights to 1, just think of items with the same weight have the same size

GridLayout pushes down its children and overflow when given fill_parent for height

As it seems the GridLayout will always push its children to layout corresponding to their needs. for instance the following declaration:
<?xml version="1.0" encoding="utf-8"?>
<GridLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:columnCount="3"
android:orientation="vertical"
android:rowCount="4"
android:useDefaultMargins="true" >
...
<ImageView
android:id="#+id/main_image"
android:layout_column="1"
android:layout_columnSpan="2"
android:layout_row="3"
android:scaleType="fitStart" />
</GridLayout>
The GridLayout declares fill_parent and as such I would expect it to not overflow. The GridLayout should take the size of the parent which in this case is the window (full height). However in hierarchy viewer the GridLayout is set as Wrap_content for both vertical and horizontal.
As such the ImageView (which is a large image) or any text view will be push to fit themself and as such overflow the container.
This can be seen within the hierarchy viewer where the container grid view fits the parent:
while the image view overflow
Reading the documentation, I understand there is a need to set gravity. As far as I can try, I used all kinds of gravity options and image scaling options without much effect. Removing the margins with useDefaultMargins="false" does change the layout overflow which leads the issue towards gridlayout.
My question follows:
Is this a bug or am I using the GridLayout incorrectly
How can I force the GridLayout's children to fit their container and to fill
remaining spaces

The trick in other layouts is to give the first element an android:layout_weight="1.0" and nothing to the other elements. Why it works I have no idea, but it does. Here's a simple XML that displayed an ImageView, a TextView and a Button. Without the layout_weight parameter assigned to the ImageView the text and button were shifted down.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#color/white"
android:orientation="vertical"
android:keepScreenOn = "true" >
<ImageView
android:id="#+id/imageView_surprise"
android:layout_width="wrap_content"
android:layout_height="0dip"
android:scaleType="centerInside"
android:contentDescription="#string/accessibility_imageView_surprise"
android:layout_weight="1.0" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:layout_gravity="bottom" >
<TextView
android:id="#+id/textView_message"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:textColor="#color/black"
android:textSize="24sp"
android:gravity="center_horizontal" />
<Button
android:id="#+id/button_share"
style="#style/button_text"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
</LinearLayout>
</LinearLayout>

image out of bounds of image view

I'm having trouble figuring out why my image isn't within the bounds of my imageview. Instead, it is floating off to the left and hidden. Is this only because the Graphical Interface doesn't show it?
EDIT:
I edited the original code to more clearly show the issue i'm having and added a picture(i want the image to show in the red box):
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
android:id="#+id/top_container"
android:layout_width="fill_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:gravity="center"
>
<LinearLayout
android:layout_width="0dp"
android:layout_height="fill_parent"
android:layout_weight="1"
>
<View
android:layout_height="fill_parent"
android:layout_width="0dp"
android:layout_weight="195"
android:background="#00FF00"/>
<ImageView
android:id="#+id/img"
android:layout_width="0dp"
android:layout_height="fill_parent"
android:layout_weight="1"
android:background="#ff0000"
android:src="#drawable/img" />
<View
android:layout_height="fill_parent"
android:layout_width="0dp"
android:layout_weight="1"
android:background="#0000FF"
/>
</LinearLayout>
</LinearLayout>

Ok I have it working. The height attribute of "block_container" is set to a random 200dp you WILL want to change the height to whatever your needs are, or potentially set it to "wrap_content". I tested this on emulator and device.
I am also assuming that you want all three block to be equally spaced. Notice how the parent "block_container" has a weight_sum of 9? Well the children are equal widths because they have a weight of 3 each (3 blocks * 3 weight each = 9 weight total).
I noticed before it looks like you were trying to use weight as width directly e.g. a weight of 569. Just remember weight != width directly.
EDIT: added the missing id attributes from some of the views
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/top_container"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<LinearLayout
android:id="#+id/block_container"
android:layout_width="fill_parent"
android:layout_height="200dp"
android:orientation="horizontal"
android:weightSum="9"
>
<View
android:id="#+id/left_block"
android:layout_height="fill_parent"
android:layout_width="0dp"
android:layout_weight="3"
android:background="#00FF00"/>
<ImageView
android:id="#+id/img"
android:layout_width="0dp"
android:layout_height="fill_parent"
android:layout_weight="3"
android:background="#ff0000"
android:src="#drawable/logo" />
<View
android:id="#+id/right_block"
android:layout_height="fill_parent"
android:layout_width="0dp"
android:layout_weight="3"
android:background="#0000FF"
/>
</LinearLayout>
</LinearLayout>

Why are you setting android:layout_height to be 0dp? I can't even get it to display unless I change this to something like fill_parent.
Either way, its because of your layout_weight for the parent LinearLayout. Specify a larger layout_weight for your ImageView and it will come into view.
<ImageView
android:id="#+id/my_img"
android:gravity="center"
android:layout_width="0dp"
android:layout_height="fill_parent"
android:layout_weight="279"
android:src="#drawable/my_img" />
This worked for me.. but math might not be right.

I don't know where to begin with the issues with what you posted, some simple observations before even debugging further:
Your layouts ALL need ids (e.g. android:id="#+id/another_layout")
You have a width on the second linear layout of 0dp
Your first linear layout has a height of 0 dp, combined with the previous I'm surprised it renders at all
The last inner linear layout again has a width of 0dp
What are you trying to achieve? To me there seems to be a lot of layouts unless you have removed some elements to make it easier to understand? You could post a simple image of what you are trying to do then perhaps we can help you refine the markup?