Merge "Respect Drawable's alpha when drawing UserBadgeDrawable's background" into main

import android.graphics.drawable.Drawable;

import android.graphics.drawable.DrawableWrapper;

import androidx.annotation.ColorInt;

import androidx.annotation.NonNull;

import androidx.annotation.VisibleForTesting;

import androidx.annotation.Nullable;

import androidx.annotation.VisibleForTesting;

import androidx.core.graphics.ColorUtils;

/**

 * A drawable used for drawing user badge. It draws a circle around the actual badge,

    private static final float SHADOW_RADIUS = 11.5f;

    private static final float SHADOW_OFFSET_Y = 0.25f;

    private static final int SHADOW_COLOR = 0x11000000;

    @VisibleForTesting

    static final int SHADOW_COLOR = 0x11000000;

    private final Paint mPaint = new Paint(Paint.ANTI_ALIAS_FLAG);

            canvas.translate(b.left, b.top);

            canvas.scale(b.width() / VIEWPORT_SIZE, b.height() / VIEWPORT_SIZE);

            mPaint.setColor(SHADOW_COLOR);

            mPaint.setColor(blendDrawableAlpha(SHADOW_COLOR));

            canvas.drawCircle(CENTER, CENTER + SHADOW_OFFSET_Y, SHADOW_RADIUS, mPaint);

            mPaint.setColor(mBgColor);

            mPaint.setColor(blendDrawableAlpha(mBgColor));

            canvas.drawCircle(CENTER, CENTER, BG_RADIUS, mPaint);

            canvas.restoreToCount(saveCount);

        super.draw(canvas);

    }

    private @ColorInt int blendDrawableAlpha(@ColorInt int color) {

        int alpha = (int) (Color.valueOf(color).alpha() * getAlpha());

        return ColorUtils.setAlphaComponent(color, alpha);

    }

    @Override

    public void setColorFilter(@Nullable ColorFilter filter) {

        if (filter == null) {