Develop Reference

Android: height of LinearLayout didn't fill parent of ListView item

I have a ListView, the item is a RelativeLayout, at left is text, and the right side is ImageView in a LinearLayout.
I expect the height of the LinearLayout**(white background)** to be fillParent but it didn't.
The effect is :
Anyone can help on this?
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/main_list_item"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center_vertical"
android:orientation="vertical" >
<TextView
android:id="#+id/main_list_item_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<TextView
android:id="#+id/main_list_item_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<TextView
android:id="#+id/main_list_item_more"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
<LinearLayout
android:id="#+id/main_list_item_delete_layout"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:background="#ffffff"
android:gravity="center"
android:orientation="horizontal" >
<ImageView
android:id="#+id/main_list_item_delete"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="#dimen/main_list_item_check_margin_lr"
android:layout_marginRight="#dimen/main_list_item_check_margin_lr"
android:contentDescription="#string/none"
android:gravity="center"
android:src="#drawable/ic_ctx_del1" />
</LinearLayout>
</RelativeLayout>
The main.xml is as below which contains the ListView:
<?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"
android:gravity="fill"
android:orientation="vertical" >
<!-- content -->
<LinearLayout
android:id="#+id/center"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_marginLeft="#dimen/main_margin"
android:layout_marginRight="#dimen/main_margin"
android:orientation="vertical"
android:layout_above="#id/adview_ayout">
<ListView
android:id="#+id/main_list"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
</ListView>
</LinearLayout>
<!-- content end -->
<LinearLayout
android:id="#+id/main_layout_pb"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#android:color/transparent"
android:gravity="center"
android:orientation="vertical"
android:clickable="true"
android:visibility="gone">
<ProgressBar
android:id="#+id/main_pb"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical|center_horizontal" >
</ProgressBar>
</LinearLayout>
enter code here

I believe this is something that the parent RelativeLayout can't handle by itself - it creates kind of a vicious circle - parent defers the height to the child (wrap_content on the RelativeLayout) and the child defers the height to the parent (match_parent on main_list_item_delete_layout).
What you can do is to anchor the top of the main_list_item_delete_layout to the parent and its bottom to another view that is guaranteed to be the bottom (the LinearLayout on the left, containing the three text views):
<RelativeLayout ...>
<LinearLayout
android:id="#+id/left_layout"
android:layout_toLeftOf="#+id/main_list_item_delete_layout"
android:layout_toStartOf="#+id/main_list_item_delete_layout"
...
>
</LinearLayout>
<LinearLayout
android:id="#+id/main_list_item_delete_layout"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:layout_alignParentTop="true"
android:layout_alignBottom="#id/left_layout"
...>
</LinearLayout>
</RelativeLayout>
PS: in your example, in case the text on the left LinearLayout is too long, it will overflow and overlap the delete layout - hence the addition of the anchor I added to the left layout.
PS2: I know this solution is very customized to your layout. If you are set on using the RelativeLayout as a parent, you might want to try the new ConstraintLayout.

ListView hidden behind button

The contents of my list view get hidden behind the button as follows:
The xml file is:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_gravity="top"
>
<ListView
android:id="#android:id/list"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:drawSelectorOnTop="false"
/>
<RelativeLayout
android:id="#+id/InnerRelativeLayout"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
>
<Button
android:text="Send"
android:id="#+id/Button"
android:layout_alignParentRight="true"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:onClick="addItems"
>
</Button>
<EditText
android:id="#+id/message"
android:layout_width="fill_parent"
android:layout_toLeftOf="#id/Button"
android:layout_height="wrap_content"
>
</EditText>
</RelativeLayout>
</RelativeLayout>
The TextView for each row is as follows:
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content
android:layout_gravity="right"
android:gravity="right"
android:textSize="20sp"
/>
What should i do to align it properly (as in above the button)?
Also when the listView is with just one or two entries, and when the keyboard is opened to type, the whole view shifts? How do I fix that as well? Thanks in advance

Cleaned up and corected the code a bit. Perhaps this is what you were looking for. Let me know if it works. Cheers !
<?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"
android:orientation="vertical" >
<RelativeLayout
android:id="#+id/InnerRelativeLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true" >
<Button
android:id="#+id/Button"
android:layout_width="wrap_content"
android:layout_height="40dp"
android:layout_alignParentRight="true"
android:onClick="addItems"
android:text="Send" />
<EditText
android:id="#+id/message"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:inputType="text"
android:layout_toLeftOf="#id/Button" />
</RelativeLayout>
<ListView
android:id="#android:id/list"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="#id/InnerRelativeLayout" />
</RelativeLayout>

adding android:layout_above="#+id/InnerRelativeLayout" to your ListView.
RelativeLayout has child views specify their position relative to the parent view or to each other (specified by ID). So you can align two elements by right border, or make one below another, centered in the screen, centered left, and so on. By default, all child views are drawn at the top-left of the layout, so you must define the position of each view using the various layout properties available from RelativeLayout.LayoutParams.
For put your InnerRelativeLayout layout at Top add android:layout_alignParentTop="true" to your InnerRelativeLayout and remove android:layout_alignParentBottom="true"
Update: set up your Layout like below:
<?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"
android:background="#color/Beige "
android:orientation="vertical" >
<RelativeLayout
android:id="#+id/InnerRelativeLayout"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true" >
<Button
android:id="#+id/Button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:onClick="addItems"
android:text="Send" >
</Button>
<EditText
android:id="#+id/message"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_toLeftOf="#id/Button"
android:hint="Enter text" >
</EditText>
</RelativeLayout>
<ListView
android:id="#+id/list"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/InnerRelativeLayout"
android:drawSelectorOnTop="false" />
</RelativeLayout>
Output:

use android:layout_above="#+id/InnerRelativeLayout" in your listview

Make the outer RelativeLayout into a LinearLayout with orientation vertical. Then, for the ListView set layout_height as 0dp and layout_weight as 1. The ListView will fill up all the remaining space in the LinearLayout without overlapping other views.
Also, stop using fill_parent, it's been deprecated and you should use match_parent instead.

vertical layout little issue

I have a LinearLayout (vertical) and it should contain 3 elements in the following order: textview, listview and button. The listview could be really high so in order to keep all the 3 elements visible I put the 3 elements each one inside another layout. So my structure is like:
linear layout (vertical)
linear layout (horizontal)
textview
linear layout (vertial) *
listview
relative layout
button
In order to get it working I set a fixed height to the vertical linearlayout which only contains the listview (*) but I know it is a bad choice because on bigger devices there will be a lot of empty space. How can I fix it?
thanks

User percentage values for the LinearLayout(*), so they take up a percentage of the parent's height,
and for the rest, if you want them to take up remaining space, add attribute: android:layout_weight:1;

Implement your layout this way :
<RelativeLayout 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" >
<TextView
android:id="#+id/mTextView"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:gravity="center"
android:padding="10dp"
android:text="Header Text" />
<ListView
android:id="#+id/mListView"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_above="#+id/mButton"
android:layout_below="#+id/mTextView" >
</ListView>
<Button
android:id="#+id/mButton"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:text="Button1" />
</RelativeLayout>

// 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:padding="5dp"
android:orientation="vertical">
<LinearLayout
android:layout_height="wrap_content"
android:layout_width="match_parent">
<TextView
android:id="#+id/textview"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:text="textview"/>
</LinearLayout>
<LinearLayout
android:layout_height="0dp"
android:layout_width="match_parent"
android:layout_marginTop="5dp"
android:layout_weight="1">
<ListView
android:layout_height="match_parent"
android:layout_width="match_parent"
android:cacheColorHint="#00000000"
android:divider="#null"
android:dividerHeight="0dp"
android:smoothScrollbar="true"
android:id="#+id/listview"/>
</LinearLayout>
<LinearLayout
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:layout_marginTop="5dp"
android:gravity="center">
<Button
android:id="#+id/button"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:text="button"/>
</LinearLayout>
</LinearLayout>

Top margin property isn't respected when adding a LinerLayout into another LinearLayout

I'm trying to add this child 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:layout_marginTop="50dp"
android:background="#FFFFFF"
android:orientation="vertical" >
<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="50dp"
android:layout_marginTop="10dp"
android:text="Beautiful star-shaped spillway, Kechut Reservoir, Jermuk, Armenia"
android:textAppearance="?android:attr/textAppearanceMedium" />
</LinearLayout>
into this parent LinearLayout:
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#F1F1F1" >
<LinearLayout
android:id="#+id/tiles"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
android:orientation="vertical" >
</LinearLayout>
</ScrollView>
I add this dynamically using the Inflater so there can be multiple items in my parent LinearLayout. I'd like to have spacing between the children so I've added property android:layout_marginTop="50dp" but this property doesn't get respected.
My children show up without any spacing between them. How I can I fix this?

I couldn't find another way of doing this other than nesting the child LinearLayout inside another LinearLayout and adding the marginTop property to that.
<?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" >
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_marginTop="10dp"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:background="#FFFFFF"
android:orientation="vertical" >
<TextView
android:id="#+id/description"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="50dp"
android:layout_marginTop="10dp"
android:text=""
android:textAppearance="?android:attr/textAppearanceSmall" />
</LinearLayout>
</LinearLayout>

In this case it might work better with padding. I've experienced that when you don't limit your height or width of your layout padding tends to give better results (sometimes).

Center list item vertically on ListView

I'm developing an Android application.
On one activity I have a List with list items. Those list items will have a TextView (I'm using my own layout because probably I will need to add more widgets to it).
This is ListActivity xml:
<?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" >
<ListView
android:id="#android:id/list"
android:layout_width="match_parent"
android:layout_height="469dp"
android:layout_marginLeft="20dp"
android:layout_marginRight="20dp"
android:layout_marginTop="40dp">
</ListView>
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content" >
<TextView
android:id="#+id/orderErrorMsg"
android:layout_alignParentRight="true"
android:layout_alignParentBottom="true"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="10dp"
android:textSize="16dp" >
</TextView>
</RelativeLayout>
</LinearLayout>
And this is ListItem xml:
<?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="100dp"
android:orientation="vertical">
<TextView
android:id="#+id/orderToFillName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:textSize="20dp" />
</LinearLayout>
And, finally, this is the result:
Why TextView is not centered vertically?

You have "wrap_content" on the layout_height of the TextView = there is no space to center vertically on since the TextView is wrapped tightly.
Try changing the layout_height to "match_parent" or place gravity="center_vertical" attribute in the LinearLayout instead.
<TextView
android:id="#+id/orderToFillName"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="center_vertical"
android:textSize="20dp" />

the answer is really simple: you have to add this to your TextView's XML:
android:gravity="center"
Currently you're not setting the text's position in the TextView but just the View's position.
Best wishes,
Tim

Try this way:
<TextView
android:id="#+id/orderToFillName"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:gravity= "center_vertical|center_horizontal"
android:textSize="20dp" />
or
android:gravity="center"