Java 类android.support.v7.widget.DrawableUtils 实例源码

public static Drawable getTintDrawableByColor2(
        Context context,
        @DrawableRes int drawableResId,
        @ColorInt int color) {
    Drawable drawable = AndroidUtils.getDrawable(context, drawableResId);

    if (DrawableUtils.canSafelyMutateDrawable(drawable)) {
        drawable = drawable.mutate();
    }

    PorterDuffColorFilter filter
            = new PorterDuffColorFilter(color, PorterDuff.Mode.SRC_IN);
    drawable.setColorFilter(filter);

    return drawable;
}

public static Drawable getTintDrawableByColor(
        Context context,
        @DrawableRes int drawableResId,
        @ColorInt int color) {
    Drawable drawable = AndroidUtils.getDrawable(context, drawableResId);

    if (DrawableUtils.canSafelyMutateDrawable(drawable)) {
        drawable = drawable.mutate();
    }

    Drawable drawableCompat = DrawableCompat.wrap(drawable);
    DrawableCompat.setTint(drawableCompat, color);

    return drawableCompat;
}

public static boolean tintDrawableUsingColorFilter(@NonNull Context context, @DrawableRes final int resId,
                                                   @NonNull Drawable drawable) {
    PorterDuff.Mode tintMode = DEFAULT_MODE;
    boolean colorAttrSet = false;
    int colorAttr = 0;
    int alpha = -1;

    if (arrayContains(COLORFILTER_TINT_COLOR_CONTROL_NORMAL, resId)) {
        colorAttr = R.attr.colorControlNormal;
        colorAttrSet = true;
    } else if (arrayContains(COLORFILTER_COLOR_CONTROL_ACTIVATED, resId)) {
        colorAttr = R.attr.colorControlActivated;
        colorAttrSet = true;
    } else if (arrayContains(COLORFILTER_COLOR_BACKGROUND_MULTIPLY, resId)) {
        colorAttr = android.R.attr.colorBackground;
        colorAttrSet = true;
        tintMode = PorterDuff.Mode.MULTIPLY;
    } else if (resId == R.drawable.abc_list_divider_mtrl_alpha) {
        colorAttr = android.R.attr.colorForeground;
        colorAttrSet = true;
        alpha = Math.round(0.16f * 255);
    }

    if (colorAttrSet) {
        if (DrawableUtils.canSafelyMutateDrawable(drawable)) {
            drawable = drawable.mutate();
        }

        final int color = getThemeAttrColor(context, colorAttr);
        drawable.setColorFilter(getPorterDuffColorFilter(color, tintMode));

        if (alpha != -1) {
            drawable.setAlpha(alpha);
        }

        return true;
    }
    return false;
}