How to change background color via java?

Question

Hello I'm a newbie in android development and I am looking forward a way to change the background color.

Here is my code:

super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// View layout = new View(this);
// layout.setBackgroundColor(android.R.color.holo_blue_light);
// View root = layout.getRootView();
// root.setBackgroundColor(android.R.color.holo_green_dark);
View view = this.getWindow().getDecorView();
view.setBackgroundColor(R.color.red);

Use setBackgroundResource() instead setBackgroundColor()

bendyna
– bendyna

2013-05-20 13:40:26 +00:00
Commented May 20, 2013 at 13:40 — bendyna
– bendyna, Commented May 20, 2013 at 13:40
or change the background in the layout file

Rotem
– Rotem

2013-05-20 13:40:41 +00:00
Commented May 20, 2013 at 13:40 — Rotem
– Rotem, Commented May 20, 2013 at 13:40
possible duplicate of How to set background color of a View

Paresh Mayani
– Paresh Mayani

2013-05-20 13:41:28 +00:00
Commented May 20, 2013 at 13:41 — Paresh Mayani
– Paresh Mayani, Commented May 20, 2013 at 13:41

Shreyos Adikari · Accepted Answer · 2013-05-20 13:43:20Z

2

The problem is with the syntax view.setBackgroundColor(R.color.red);
Try:

view.setBackgroundColor(Color.RED);

answered May 20, 2013 at 13:43

Shreyos Adikari

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1 Comment

Blackbelt Over a year ago

or getResources.getColor(R.color.Red)

rahultheOne · Accepted Answer · 2013-05-20 13:44:43Z

1

view.setBackgroundResource(R.drawable.example);

answered May 20, 2013 at 13:44

rahultheOne

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Comments

Ashwani kumar · Accepted Answer · 2018-04-05 05:29:47Z

0

used this :-

 view.setBackgroundColor(ContextCompat.getColor(context, R.color.color_name))

This will choose the Marshmallow two parameter method or the pre-Marshmallow method appropriately.

answered Apr 5, 2018 at 5:29

Ashwani kumar

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