Convert GradientDrawable to Bitmap

Issue

I have the following gradient (generated dynamically):

    GradientDrawable dynamicDrawable = new GradientDrawable();
    dynamicDrawable.setGradientType(GradientDrawable.LINEAR_GRADIENT);
    dynamicDrawable.setUseLevel(false);
    int colors[] = new int[3];
    colors[0] = Color.parseColor("#711234");
    colors[1] = Color.parseColor("#269869");
    colors[2] = Color.parseColor("#269869");
    dynamicDrawable.setColors(colors);

and I want to set that drawable in a view using onDraw method.

When I want to assign a Drawable to a bitmap I use the casting (BitmapDrawable), but in that case is not possible due the gradientDrawable cannot be cast to BitmapDrawable.

Any idea about how I solve that?

Thanks in advance

Solution

• Create a mutable bitmap using Bitmap.createBitmap()
• Create a Canvas based on the bitmap using new Canvas(bitmap)
• Then call draw(canvas) on your GradientDrawable

Answered By - kris larson