Develop Reference

LinearLayout under GridView does not wrap content

I am working on Xamarin app but I believe this concept also applies for android.
I would like to show my LinearLayout wrapped items in GridView as below. But is does not render as I expected.
Is there anything I am missing here?
Code:
Main.axml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:minWidth="25px"
android:minHeight="25px">
<GridView
android:minWidth="25px"
android:minHeight="25px"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/gridViewHomeItems"
android:horizontalSpacing="10px"
android:verticalSpacing="10px"
/>
HomeItem.axml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:minWidth="25px"
android:minHeight="25px"
android:padding="25px">
<ImageView
android:src="#android:drawable/ic_menu_gallery"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/homeItemImage" />
<TextView
android:text="Item Title"
android:textAppearance="?android:attr/textAppearanceMedium"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/homeItemTitle" />
</LinearLayout>

Remove the px from properties. Use sp or dp instead. Same thing apply to the Grid View layout also.
Like this.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:minHeight="25dp"
android:minWidth="25dp"
android:orientation="vertical"
android:padding="25dp">
<ImageView
android:id="#+id/homeItemImage"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:src="#android:drawable/ic_btn_speak_now" />
<TextView
android:id="#+id/homeItemTitle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Item Title"
android:textAppearance="?android:attr/textAppearanceMedium" />
</LinearLayout>
Grid View like this
<?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:minHeight="25dp"
android:minWidth="25dp"
android:orientation="vertical">
<GridView
android:id="#+id/gridViewHomeItems"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:columnWidth="96dp"
android:horizontalSpacing="10dp"
android:minHeight="25dp"
android:minWidth="25dp"
android:numColumns="auto_fit"
android:verticalSpacing="10dp" />
</LinearLayout>

Try adding this atributes. Main.axml#GridView:
android:columnWidth="96dp"
android:numColumns="auto_fit"
HomeItem.axml (#ImageView and #TextView):
android:layout_centerHorizontal="true"

Try the below code in your layout.
<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"
>
<GridView
android:numColumns="auto_fit"
android:gravity="center"
android:columnWidth="100dp"
android:stretchMode="columnWidth"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="#+id/gridViewHomeItems"
/>
</LinearLayout>
Change your custom layout as below:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:minHeight="25dp"
android:minWidth="25dp"
android:orientation="vertical"
android:padding="10dp">
<ImageView
android:id="#+id/homeItemImage"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:src="#android:drawable/ic_menu_gallery"/>
<TextView
android:id="#+id/homeItemTitle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Item Title"
android:textAppearance="?android:attr/textAppearanceMedium"/>
</LinearLayout>
Also make sure you use dp instead of px as per android standards.

How to display multiple columns of CardView?

I wish to achieve a layout like this one that can dynamically display albums and change the number of columns according to orientation (vertical or horizontal). Here is an example of what I am trying to achieve:
As of now my code looks something like this
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:card_view="http://schemas.android.com/apk/res-auto"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v7.widget.CardView
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="160dp"
android:layout_height="200dp"
android:layout_gravity="top|left"
android:layout_weight="1"
android:layout_margin="8dp"
app:cardCornerRadius="0dp"
app:elevation="5dp">
<ImageView
android:id="#+id/avatar"
android:layout_width="160dp"
android:layout_height="160dp"
android:layout_gravity="top|center"
android:scaleType="centerCrop"
android:src="#drawable/wp" />
<TextView
android:id="#+id/album_name"
android:layout_width="match_parent"
android:layout_height="25dp"
android:alpha="0.85"
android:background="#color/light"
android:layout_above="#+id/detail"
android:layout_below="#+id/avatar"
android:gravity="bottom|center"
android:layout_alignParentBottom="true"
android:text="Test"
android:textColor="#color/cardview_dark_background" />
<TextView
android:id="#+id/detail"
android:layout_width="match_parent"
android:layout_height="15dp"
android:layout_gravity="bottom|center"
android:alpha="0.85"
android:background="#color/light"
android:gravity="bottom|center"
android:layout_alignParentBottom="true"
android:layout_below="#+id/album_name"
android:text="Test"
android:textColor="#color/dim_foreground_disabled_material_dark" />
</android.support.v7.widget.CardView>
</LinearLayout>

It's a GridView. Inside GridView you can set CardView of your choice. You can set how many Cards you want to show vertical or horizontal.
Sample layout:
<?xml version="1.0" encoding="utf-8"?>
<GridView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/gridview"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:columnWidth="90dp"
android:numColumns="auto_fit"
android:verticalSpacing="10dp"
android:horizontalSpacing="10dp"
android:stretchMode="columnWidth"
android:gravity="center"
/>
In your Activity now you can set it's adapter
GridView gridview = (GridView) findViewById(R.id.gridview);
gridview.setAdapter(new YourCustomAlbumAdapter(this));
For complete example you can see official Example http://developer.android.com/guide/topics/ui/layout/gridview.html

Unwanted Gridview spacing

My grid design is as such. But i want to remove the spaces on both sides of the grid elements. (Black marked)
I want the image to be expanded somewhat like
My XML layouts for the gridview
<?xml version="1.0" encoding="utf-8"?>
<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"
tools:context=".MainActivity" >
<GridView
android:id="#+id/grid"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:columnWidth="100dip"
android:gravity="center"
android:numColumns="2"
android:stretchMode="spacingWidthUniform" />
</LinearLayout>
My grid element layout
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<ImageView
android:id="#+id/grid_image"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:scaleType="fitXY"
android:contentDescription="#string/im" >
</ImageView>
<TextView
android:id="#+id/grid_text"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:maxLength="23"
android:gravity="center"
android:layout_marginTop="10sp"
android:paddingTop="10dp"
android:paddingBottom="10dp"
android:textSize="12sp" >
</TextView>
</LinearLayout>

Try Changing
<GridView
android:id="#+id/grid"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:verticalSpacing="1dp"
android:horizontalSpacing="1dp"
android:numColumns="2"
android:background="#abcdef"
android:stretchMode="columnWidth" />

You can replace GridView with GridLayout and use weights to make the images fill the screen. Here's the reference: http://developer.android.com/reference/android/widget/GridLayout.html, (See the section: Excess space distribution)

GridView filling parent despite wrap_content

I have a gridlayout like this in the main layout xml of my activity:
<?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:orientation="vertical"
android:id="#+id/parentLayout"
android:layout_gravity="right">
<GridView
android:id="#+id/gridview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#AAAAAA"
android:columnWidth="90dp"
android:numColumns="3"
android:verticalSpacing="10dp"
android:horizontalSpacing="10dp"
android:stretchMode="none"
/>
</LinearLayout>
I populate it with 6 icons by inflating the following:
<?xml version="1.0" encoding="utf-8"?>
<ImageView
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/searchIcon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:contentDescription="#string/searchIcon"/>
What I want is that the gridlayout is right aligned in the linear layout and that it just wraps its content. I am testing this by giving it a different coloured background. The layout_height="wrap_content" works fine, but the width seems to have no effect. The result is this:
Any ideas?
Thanks in advance,
Stephen

Insert android:gravity="right" in GridView
<GridView
......
.....
android:gravity="right" />

use android:gravity="right" in LinearLayout instead-of LinearLayout ..............
<?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:orientation="vertical"
android:id="#+id/parentLayout"
android:gravity="right"> //<-----------------------
android:gravity sets the gravity of the content of the View its used
on.
android:layout_gravity sets the gravity of the View or Layout in its
parent.
for test try
<?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:orientation="vertical" android:id="#+id/parentLayout"
android:gravity="right">
<TextView android:id="#+id/gridview" android:layout_width="wrap_content"
android:layout_height="wrap_content" android:background="#AAAAAA"
android:text="ewewqe" />
</LinearLayout>
also see this not the answer but see
<?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:orientation="horizontal"
android:id="#+id/parentLayout"
android:layout_gravity="right"
android:gravity="right" android:weightSum="1">
<GridView
android:id="#+id/gridview"
android:layout_height="wrap_content"
android:layout_width="0dp"
android:background="#AAAAAA"
android:columnWidth="90dp"
android:numColumns="3"
android:verticalSpacing="10dp"
android:horizontalSpacing="10dp"
android:stretchMode="none"
android:layout_weight=".5" />
</LinearLayout>

Center a View in Android between bottom and top views

I need somehow to do this :
I tried playing with Relative Layout, I placed top imageview and bottom button but how do I place my gridview in the center? BUT BETWEEN top image and bottom button?

Have the top image and the bottom button use wrap_content for height, and the GridView use 0dip for height along with a weight of 1. This will cause the top and bottom elements to measure first, and the GridView will get all remaining space in the middle.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<ImageView android:id="#+id/top_image"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<GridView android:id="#+id/grid"
android:layout_width="match_parent"
android:layout_height="0dip"
android:layout_weight="1" />
<Button android:id="#+id/bottom_button"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>

adamp's answer didn't work for me. This is what I found to work perfectly:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<ImageView android:id="#+id/top_image"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true" />
<Button android:id="#+id/bottom_button"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true" />
<LinearLayout
android:id="#+id/container_layout"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_above="#id/bottom_button"
android:layout_below="#id/top_image"
android:gravity="center" >
<GridView android:id="#+id/grid"
android:layout_width="fill_parent"
android:layout_height="fill_parent" />
</LinearLayout>
</RelativeLayout>
I've used this with other LinearLayouts in place of the GridView, with android:gravity="center" set on the innermost layout as well to make all of its text views and images centered horizontally as well as vertically.

use something like this
<?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="wrap_content"
android:gravity="center">
<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:id="#+id/table">
<TableRow
android:weightSum="100">
<ImageView android:id="#+id/image1"
android:src="#drawable/icon"
android:visibility="visible"
android:gravity="center"
android:layout_weight="50" />
</TableRow>
<TableRow
android:weightSum="100">
<GridView
android:layout_height="wrap_content"
android:layout_width="wrap_content">
</GridView>
</TableRow>
<TableRow
android:weightSum="100">
<Button android:id="#+id/btn1"
android:visibility="visible"
android:gravity="center"
android:layout_weight="50" />
</TableRow>
</TableLayout>
</LinearLayout>

You could try this:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<ImageView android:id="#+id/top_image"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<GridView android:id="#+id/grid1"
android:layout_width="match_parent"
android:layout_height="0dip"
android:layout_weight="1" />
<Button android:id="#+id/button1"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>

Add these to your Grid View:
android:layout_above="#id/bottom_button"
android:layout_below="#id/top_image"