Develop Reference

Image does not touch the edges, Android [duplicate]

I am creating an Android app which has a main RelativeLayout and some LinearLayout within it.
Now i have this problem. When dragging items to the editor, e.g. a LinearLayout, it doesn't fit to the full width of the screen. How can I make this possible? This is my XML:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:fillViewport="true"
android:gravity="fill"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<LinearLayout
android:id="#+id/itemDetailLayout"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:orientation="vertical"
android:fillViewport="true" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<ImageView
android:id="#+id/itemImage"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:minHeight="40dp"
android:minWidth="40dp"
android:src="#drawable/ic_launcher" />
<TextView
android:id="#+id/itemName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="20dp"
android:text="Name"
android:textAppearance="?android:attr/textAppearanceMedium" />
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:orientation="vertical"
android:fillViewport="true" >
<TextView
android:id="#+id/itemRecentHigh"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Recent High" />
<TextView
android:id="#+id/itemRecentLow"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Recent Low" />
<TextView
android:id="#+id/itemAverage"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Average" />
</LinearLayout>
</LinearLayout>
<LinearLayout
android:id="#+id/listViewLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="#+id/itemDetailLayout"
android:layout_marginTop="10dp"
android:fillViewport="true"
android:gravity="fill_horizontal"
android:orientation="vertical" >
<ListView
android:id="#+id/searchListView"
android:layout_width="match_parent"
android:layout_height="fill_parent"
android:fillViewport="true" >
</ListView>
</LinearLayout>
Added a screenshot for more info. Added blue background to have some contrast.

Replace this:
android:layout_width="wrap_content"
android:layout_height="wrap_content"
With
android:layout_width="match_parent"
android:layout_height="wrap_content"
into your LinearLayout or Remove all the Padding from main RelativeLayout

Removing padding makes the linear layout fit the entire screen of the device

The space between the blue part and the "end of the screen". On the sides and above the part where the back button and home button are.
Remove the padding from the root RelativeLayout.

Try
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical>
// Other views within the linear layout
</LinearLayout>
I suppose you are using Eclipse. Personally, I hate the Graphical Editor of Eclipse and I usually write the XML code directly because working with the editor is a real pain

Don't use fill_parent as it is deprecated.
Instead to your RelativeLayout set
android:layout_width="fill_parent"
android:layout_height="fill_parent"
Then, to the list view that you want to fill the rest of the screen, you can set this tags
android:layout_width="fill_parent"
android:layout_height="0dp"
android:layout_weight="1"
By doing so, you are telling the XML that you want your ListView to do what fill_parent used to do in previous versions of Android.
Kind regards!

you should try something like the following :
<LinearLayout
android:id="#+id/itemDetailLayout"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
>
...
</LinearLayout>
what i mean you should do this :
android:layout_width="fill_parent"
for every LinearLayout that you want its width to fill_parent .
FILL_PARENT means that the view wants to be as big as its parent as mentioned in the documentation .
and please give me some feedback
Hope That Helps .

Buttons gone after added swiperefreshlayout

I have a layout with listview and two buttons side by side at the bottom of the listview. Everything work fine until I have added the swiperefreshlayout for my listview.
My codes are as below.
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="#FFF"
>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="50dp"
android:id="#+id/search_bar"
android:background="#color/colorPrimaryDark"
android:orientation="vertical"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
>
<EditText
android:id="#+id/keyword_editText"
android:layout_width="fill_parent"
android:layout_height="30dp"
android:background="#drawable/search_edit_text"
android:hint="Keyword"
android:textColorHint="#color/list_item_title"
android:textColor="#000"
android:layout_centerVertical="true"
android:maxLines="1"/>
</RelativeLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/listView_layout"
android:orientation="vertical"
android:layout_below="#+id/search_bar"
>
<android.support.v4.widget.SwipeRefreshLayout
android:id="#+id/refresh"
android:layout_height="match_parent"
android:layout_width="match_parent">
<ListView
android:layout_width="wrap_content"
android:layout_height="0dip"
android:layout_weight="1"
android:id="#+id/RsListView"
android:dividerHeight="1dp"
android:divider="#D3D3D3"/>
</android.support.v4.widget.SwipeRefreshLayout>
<LinearLayout
android:id="#+id/test"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
>
<Button
android:id="#+id/req_history_button"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Request History"
android:layout_weight="1"
android:background="#drawable/request_history_button"
android:textColor="#drawable/button_text_color"
/>
<Button
android:id="#+id/apprv_history_button"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Approval History"
android:layout_weight="1"
android:background="#drawable/approval_history_button"
android:textColor="#drawable/button_text_color"
/>
</LinearLayout>
</LinearLayout>
Sorry for dumping my codes here as I can't figure out any other way for you guys to understand my code.
Please help

Inside LinearLayout usually all children have even dimension according to orientation. However, when you would like one child to take a little amount of place and another to fill the rest, you might be interested in layout_weight parameter. If the child that should fill the space gets android:layout_weight="1" it will fill the space making a place for other views.
In order to see the buttons add android:layout_weight="1" to SwipeRefreshLayout and set android:layout_height="0dp". That will make your buttons visible.

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>

How to fill the screen with only one element?

I want to make an activity with 2 elements in the screen, one in the bottom, with a fixed size, and one on top of this which one must fill the screen.
How I can do that in a Layout?
Thank you

use layout_weight="1" for 1st element and put layout_height="0dp" and use linearlayout as the parent which contains the 2 elements.

Use below code:
<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"
tools:context=".MainActivity" >
<TextView
android:id="#+id/textView1"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:gravity="center"
android:text="#string/hello_world" />
<TextView
android:id="#+id/textView2"
android:layout_width="match_parent"
android:layout_height="50dp"
android:gravity="center"
android:text="test" />
</LinearLayout>

Or you can do this,
<LinearLayout
android:id="#+id/linearLayout1"
android:layout_width="fill_parent"
android:layout_alignParentTop="true"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:layout_above="#+id/ll1"
>
</LinearLayout>
<LinearLayout
android:id="#+id/ll1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:orientation="horizontal"
>
</LinearLayout>

Add this to the first element:
android:layout_weight="0.8"
and for the second one
android:layout_weight="0.2"

You can use Relative Layout like...following example
<//you are second element
android:id="#+id/ui_radiogroup"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:clickable="false"
android:orientation="horizontal" >
<///you are second element>
<//you are First element
android:id="#+id/ui_pager"
android:layout_width="wrap_content"
android:layout_above="#id/ui_radiogroup"
android:layout_height="wrap_content"
android:scrollbars="horizontal" />
Other OPtion use Linear Layout assign android:layout_weight to each element depending upon your requirement

try this,
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<TextView
android:id="#+id/footertext"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:gravity="center"
android:text="Footer" />
<TextView
android:id="#+id/centertext"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="#id/footertext"
android:gravity="center"
android:text="center" />

Here is the complete trick :
Use a RelativeLayout to wrap your two items,
Put layout_alignParentBottom="true" on your bottom item
And layout_above="#+id/your_bottom_item_id" on your top item
Here is a complete working example that you can cpy/paste :
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<LinearLayout
android:id="#+id/top_item"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:layout_above="#+id/bottom_layout">
</LinearLayout>
<LinearLayout
android:id="#+id/bottom_item"
android:layout_width="match_parent"
android:layout_height="50dp"
android:orientation="vertical"
android:layout_alignParentBottom="true">
</LinearLayout>
</RelativeLayout>

Simply use layout_weight="1" for first element and layout height should be match_parent.

android element below list is gone when the list fills the screen

I have a LinearLayhout that contains a listView and below it an ImageButton.
When I add items to the list, the imageButton is moving lower and lower, which is what I want but when there are many elements in the list so that is the list is big enough to fill the screen, I can scroll down to the bottom of the list, but no further, meaning I can't see the imageButton anymore.
Code:
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/add_interest_layout_root"
android:orientation="vertical"
android:layout_width="match_parent"
android:background="#color/back"
android:layout_height="match_parent">
<ListView android:id="#android:id/list"
android:layout_width="match_parent"
android:divider="#drawable/downa"
android:footerDividersEnabled="false"
android:cacheColorHint="#android:color/transparent"
android:layout_gravity="center"
android:layout_marginTop="6dp"
android:layout_height="wrap_content">
</ListView>
<LinearLayout
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:id="#+id/linearLayout2"
android:gravity="center">
<LinearLayout
android:orientation="vertical"
android:gravity="center_horizontal"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:id="#+id/LinearLayout16">
<ImageButton
android:src="#drawable/add"
android:id="#+id/btn_interest_more"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:layout_gravity="center_horizontal"
android:background="#android:color/transparent"></ImageButton>
<TextView
android:layout_height="wrap_content"
android:textColor="#android:color/white"
android:textAppearance="?android:attr/textAppearanceSmall"
android:layout_width="wrap_content"
android:id="#+id/TextView08"
android:text="be more\nspecific"
android:gravity="center"></TextView>
</LinearLayout>
</LinearLayout>
What am I doing wrong? I want to be able to see the ImageButton even when I scroll down.

You should do something like this. Mind you this is a pseudo code so you better fill the correct attributes.
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/add_interest_layout_root"
android:layout_width="match_parent"
android:background="#color/back" android:layout_height="match_parent">
<LinearLayout android:layout_height="wrap_content"
android:layout_width="match_parent" android:id="#+id/linearLayout2"
android:gravity="center" android:layout_alignParentBottom="true">
<!-- LinearLayout elements same as above -->
</LinearLayout>
<ListView android:id="#android:id/list"
android:layout_above="#+id/linearLayout2"
android:layout_width="match_parent"
android:divider="#drawable/downa"
android:footerDividersEnabled="false"
android:cacheColorHint="#android:color/transparent"
android:layout_gravity="center"
android:layout_marginTop="6dp" android:layout_height="match_parent">
</ListView>
</RelativeLayout>

Here is exactly the solution to your problem: http://www.curious-creature.org/2010/08/15/scrollviews-handy-trick/ which is solved by setting fillviewport on your listview.

Add this to your LinearLayout that holds the ImageButton
android:layout_alignParentBottom="true"
UPDATE:
Forget the above code. I misunderstand you. Sorry.
Do this instead: Add this layout as your root layout
<ScrollView
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="#+id/scroll"
android:scrollbars="none"
android:layout_weight="1">
<!-- Your code -->
</ScrollView>