Change background of LinearLayout in Android

Question

I am working on an Android application. I want to change the background of a LinearLayout element.

What attribute can I set in order to change its background?

score 126 · Accepted Answer · edited Sep 18 '18 at 20:34

126

If you want to set through xml using android's default color codes, then you need to do as below:

android:background="@android:color/white"

If you have colors specified in your project's colors.xml, then use:

android:background="@color/white"

If you want to do programmatically, then do:

linearlayout.setBackgroundColor(Color.WHITE);

edited Sep 18 '18 at 20:34

Keith

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answered Apr 07 '11 at 06:35

Swathi EP

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@swathi:the answer you have insisted is valid for application level only but not in framework.Actually i want to change the open source code of android such that the background of linear layout changes that means whenever we are accessing linear layout in application level then linear layout with my specified background should be displayed – Durga Apr 07 '11 at 06:38
@Narayana you will have to modify LinearLayout.java in the android source which will be under folder source/frameworks/base/core/java/android/widget – Swathi EP Apr 07 '11 at 06:50
@swathi:i am working on that file only. but couldnt get how to resolve my problem. can u plz help me in this?? – Durga Apr 07 '11 at 06:59
@Narayana: In LinearLayout constructor try setting background through setBackgroundColor().....I am not sure about it just give an try this is just my assumption, it may or may not work. – Swathi EP Apr 07 '11 at 07:49
@Narayana oh cool...can you tell me how did u run the source? – Swathi EP Apr 07 '11 at 13:13
@SwathiEp how to change text color inside linear layout? I have set linearlayout background color blue and now want to set text color white. – Muhammad Shahzad Oct 24 '15 at 08:24
The xml listed in this answer does not work for me. Android Studio complains "Unknown resource type colors". I'm using "@colors/red". "@colors/****" works fine in other places in the same xml file, but not for android:background. Just fyi for others. – Alyoshak Sep 16 '16 at 15:59

score 27 · Answer 2 · edited Jun 27 '13 at 18:33

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LinearLayout li=(LinearLayout)findViewById(R.id.layoutid);

setting the background color fro ur layout.

li.setBackgroundColor(Color.parseColor("#ffff00"));

this is to set the image which u can store in drawable folder

li.setBackgroundDrawable(drwableItem);

some resource for display purpose animation or img

li.setBackgroundResource(R.id.bckResource);

edited Jun 27 '13 at 18:33

Someone Somewhere

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answered Apr 07 '11 at 06:37

raj

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If u dnt mind li.setBackgroundColor("#ffff00"); this code is not right li.setBackgroundColor(Color.parseColor("#ffff00")); this correct – duggu Feb 09 '13 at 11:23
Hemant - I edited the example, see the correct use of setBackgroundColor() – Someone Somewhere Jun 27 '13 at 18:34
how did to import "Color" in the class? – jorghe94 Apr 04 '18 at 17:47

Ayudh · Answer 3 · 2011-04-07T06:31:46.430

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u just used attribute

android:background="#ColorCode" for colors

if your image save in drawable folder then used :-
android:background="@drawable/ImageName" for image setting

edited Apr 07 '11 at 06:31

answered Apr 07 '11 at 06:25

Ayudh

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@Aydudh:This works fine in Application level but not in Frameworks.i want to make changes in the open source code of android – Durga Apr 07 '11 at 06:32

score 3 · Answer 4 · answered Jul 07 '17 at 12:06

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1- Select LinearLayout findViewById

LinearLayout llayout =(LinearLayout) findViewById(R.id.llayoutId);

2- Set color from R.color.colorId

llayout.setBackgroundColor(getResources().getColor(R.color.colorId));

answered Jul 07 '17 at 12:06

hzrbasaran

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score 2 · Answer 5 · edited Apr 09 '13 at 09:05

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 android:background="@drawable/ic_launcher"

should be included inside Layout tab. where ic_launcher is image name that u can put inside project folder/res/drawable . you can copy any number of images and make it as background

edited Apr 09 '13 at 09:05

Vikas S Singh

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answered Dec 12 '12 at 04:43

Anu

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score 1 · Answer 6 · edited Oct 05 '15 at 08:51

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Use this code, where li is the LinearLayout: li.setBackgroundColor(Color.parseColor("#ffff00"));

edited Oct 05 '15 at 08:51

Niki van Stein

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answered Oct 05 '15 at 07:45

Kyaw Htut

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score 0 · Answer 7 · answered Dec 23 '20 at 18:06

If your using a background resource and wish to change the resource out you can use setBackgroundResource() function.

ui_item.setBackgroundResource(R.drawable.myResource)

A background resource in XML would look like:

<LinearLayout
                android:id="@+id/ui_item"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:background="@drawable/background_01"
                android:orientation="vertical">

Change background of LinearLayout in Android

7 Answers7

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