how to use bitmap/drawable instead of color constants in android

Question

Currently I am working on a project with Particle which works fine with colour constants, but I want to use drawable/bitmap instead.

DATA = new int[]{16777215, -2130706433, 16777215};

and than passing onto create bitmap with DATA .

BMP = Bitmap.createBitmap(DATA, 0, 5, 1, 1, Bitmap.Config.ARGB_8888);

How should I use drawable resource and pass it on to create bitmap?

I have already tried context.getResources() and also have tried with a class

public class App extends Application {
    private static Context mContext;

    @Override
    public void onCreate() {
        super.onCreate();
        mContext = this;
    }

    public static Context getContext() {
        return mContext;
    }
}

And use App.getContext().getResources() , but it's not working. I am trying to create Bitmap in abstract static class.

Answer 1

使用位图工厂方法来解码可绘制资源，例如

Bitmap bmp = BitmapFactory.decodeResource(context.getResources(), R.drawable.your_resource);