Dynamically get primary color of drawable to set toolbar color

Question

I have an android app with a collapsing toolbar layout for a detailed view. I'm trying to dynamically set the color of the toolbar, according to the primary color of the drawable that was passed in.

I know this is possible with the new material guidelines, but I can't find any documentation on it.

Answer 1

Okay, so I started with what Akasha stated but generate is deprecated in latest version. So I ended up doing the following.

// Get reference to icon drawable
Drawable iconDrawable = mPackageHelper.getAppIcon(mApp.getAppPackage());

Bitmap iconBitmap = ((BitmapDrawable) iconDrawable).getBitmap();

Palette iconPalette = Palette.from(iconBitmap).maximumColorCount(16).generate();

int primaryColorInt = iconPalette.getVibrantColor(0x000000);

mToolbar.setBackgroundColor(primaryColorInt);
collapsingToolbar.setBackgroundColor(primaryColorInt);