Merge "Default dual tone alpha set to 0.3" into rvc-qpr-dev am: 6d5bc48a

import android.content.res.TypedArray;

import android.graphics.Bitmap;

import android.graphics.Color;

import android.graphics.ColorFilter;

import android.graphics.ColorMatrix;

import android.graphics.ColorMatrixColorFilter;

import android.graphics.drawable.BitmapDrawable;

import android.graphics.drawable.Drawable;

import android.location.LocationManager;

        return drawable;

    }

    /**

    * Create a color matrix suitable for a ColorMatrixColorFilter that modifies only the color but

    * preserves the alpha for a given drawable

    * @param color

    * @return a color matrix that uses the source alpha and given color

    */

    public static ColorMatrix getAlphaInvariantColorMatrixForColor(@ColorInt int color) {

        int r = Color.red(color);

        int g = Color.green(color);

        int b = Color.blue(color);

        ColorMatrix cm = new ColorMatrix(new float[] {

                0, 0, 0, 0, r,

                0, 0, 0, 0, g,

                0, 0, 0, 0, b,

                0, 0, 0, 1, 0 });

        return cm;

    }

    /**

     * Create a ColorMatrixColorFilter to tint a drawable but retain its alpha characteristics

     *

     * @return a ColorMatrixColorFilter which changes the color of the output but is invariant on

     * the source alpha

     */

    public static ColorFilter getAlphaInvariantColorFilterForColor(@ColorInt int color) {

        return new ColorMatrixColorFilter(getAlphaInvariantColorMatrixForColor(color));

    }

    /**

     * Determine whether a package is a "system package", in which case certain things (like

     * disabling notifications or disabling the package altogether) should be disallowed.

    private val fillColorStrokePaint = Paint(Paint.ANTI_ALIAS_FLAG).also { p ->

        p.color = frameColor

        p.alpha = 255

        p.isDither = true

        p.strokeWidth = 5f

        p.style = Paint.Style.STROKE

    // Only used if dualTone is set to true

    private val dualToneBackgroundFill = Paint(Paint.ANTI_ALIAS_FLAG).also { p ->

        p.color = frameColor

        p.alpha = 255

        p.alpha = 85 // ~0.3 alpha by default

        p.isDither = true

        p.strokeWidth = 0f

        p.style = Paint.Style.FILL_AND_STROKE