How can I get color-int from color resource?

Is there any way to get a color-int from a color resource?

I am trying to get the individual red, blue and green components of a color defined in the resource (R.color.myColor) so that I can set the values of three seekbars to a specific level.

You can use:

getResources().getColor(R.color.idname);

Check here on how to define custom colors:

http://sree.cc/google/android/defining-custom-colors-using-xml-in-android

EDIT(1): Since getColor(int id) is deprecated now, this must be used :

ContextCompat.getColor(context, R.color.your_color);

(added in support library 23)

EDIT(2):

Below code can be used for both pre and post Marshmallow (API 23)

ResourcesCompat.getColor(getResources(), R.color.your_color, null); //without theme

ResourcesCompat.getColor(getResources(), R.color.your_color, your_theme); //with theme

Based on the new Android Support Library (and this update), now you should call:

ContextCompat.getColor(context, R.color.name.color);

According to the documentation:

public int getColor (int id)

This method was deprecated in API level 23. Use getColor(int, Theme) instead

It is the same solution for getResources().getColorStateList(id):

You have to change it like this:

ContextCompat.getColorStateList(getContext(),id);

EDIT 2019

Regarding ThemeOverlay use the context of the closest view:

val color = ContextCompat.getColor(
  closestView.context,
  R.color.name.color
)

So this way you get the right color based on your ThemeOverlay.

Specially needed when in same activity you use different themes, like dark/light theme. If you would like to understand more about Themes and Styles this talk is suggested: Developing Themes with Style

Define your color

values/color.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>

    <!-- color int as #AARRGGBB (alpha, red, green, blue) -->
    <color name="orange">#fff3632b</color>
    ...
    <color name="my_view_color">@color/orange</color>

</resources>

Get the color int and set it

int backgroundColor = ContextCompat.getColor(context, R.color.my_view_color);
// Color backgroundColor = ... (Don't do this. The color is just an int.)

myView.setBackgroundColor(backgroundColor);

See also

• How to set background color of a View
• Color docs
• Color Style Design docs

Best Approach

As @sat answer, good approach for getting color is

ResourcesCompat.getColor(getResources(), R.color.your_color, null);

or use below way when you don't have access to getResources() method.

Context context  = getContext(); // like Dialog class
ResourcesCompat.getColor(context.getResources(), R.color.your_color, null);

What i do is

public void someMethod(){
    ...
    ResourcesCompat.getColor(App.getRes(), R.color.your_color, null);
}

It is most simple to use anywhere in your app! Even in Util class or any class where you don't have Context or getResource()

Problem (When you don't have Context)

When you don't have Context access, like a method in your Util class.

Assume below method without Context.

public void someMethod(){
    ...
    // can't use getResource() without Context.
}

Now you will pass Context as a parameter in this method and use getResources().

public void someMethod(Context context){
    ...
    context.getResources...
}

So here is a Bonus unique solution by which you can access resources from anywhere like Util class . Add Resources to your Application class or Create one if does not exist.

import android.app.Application;
import android.content.res.Resources;

public class App extends Application {
    private static App mInstance;
    private static Resources res;


    @Override
    public void onCreate() {
        super.onCreate();
        mInstance = this;
        res = getResources();
    }

    public static App getInstance() {
        return mInstance;
    }

    public static Resources getResourses() {
        return res;
    }

}

Add name field to your manifest.xml <application tag. (If not added already)

<application
        android:name=".App"
        ...
        >
        ...
    </application>

Now you are good to go. Use ResourcesCompat.getColor(App.getRes(), R.color.your_color, null); anywhere in app.

Found an easier way that works as well:

Color.parseColor(getString(R.color.idname);