get Accent color from OS, set on toolbar and StatusBar

import android.accounts.Account;

import android.accounts.AccountManager;

import android.app.SearchManager;

import android.content.Context;

import android.content.Intent;

import android.content.SharedPreferences;

import android.content.pm.ShortcutInfo;

import android.content.pm.ShortcutManager;

import android.content.res.Configuration;

import android.graphics.Canvas;

import android.graphics.drawable.ColorDrawable;

import android.graphics.drawable.Icon;

import android.net.Uri;

import android.os.AsyncTask;

import android.os.Build;

import android.os.Bundle;

import android.os.Handler;

import android.preference.PreferenceManager;

import android.provider.Settings;

import android.util.Log;

import android.util.TypedValue;

import android.view.Menu;

import android.view.MenuItem;

import android.view.View;

import android.view.ViewTreeObserver;

import android.view.Window;

import android.view.WindowManager;

import android.widget.LinearLayout;

import android.widget.RelativeLayout;

import android.widget.TextView;

import android.widget.Toast;

import androidx.annotation.ColorInt;

import androidx.annotation.NonNull;

import androidx.annotation.Nullable;

import androidx.appcompat.app.ActionBarDrawerToggle;

import androidx.appcompat.app.AppCompatActivity;

import androidx.appcompat.view.ContextThemeWrapper;

import androidx.coordinatorlayout.widget.CoordinatorLayout;

import androidx.appcompat.view.ActionMode;

import androidx.appcompat.widget.AppCompatImageView;

    private final static String login_account_eelo = "login_account_eelo";

    private final static String key_email_address = "email_address";

    public static int ACCENT_COLOR;

    @BindView(R.id.notesListActivityActionBar)

    Toolbar toolbar;

        //    dialog.getButton(DialogInterface.BUTTON_POSITIVE).setTextColor(getResources().getColor(R.color.fg_default));

        //    dialog.getButton(DialogInterface.BUTTON_NEGATIVE).setTextColor(getResources().getColor(R.color.fg_default));

        //}

        ACCENT_COLOR= fetchAccentColor(this);

    }

    private void migrateUrl() {

            adapter.notifyDataSetChanged();

        }

    }

    /*

     * get Accent color from OS

     * */

    private int fetchAccentColor(Context context) {

        TypedValue typedValue = new TypedValue();

        ContextThemeWrapper contextThemeWrapper = new ContextThemeWrapper(this,

                android.R.style.Theme_DeviceDefault);

        contextThemeWrapper.getTheme().resolveAttribute(android.R.attr.colorAccent,

                typedValue, true);

        int color_accent = typedValue.data;

        Log.e("TAG", "accent Colour  #"+Integer.toHexString(color_accent));

        //change toolbar color

        getSupportActionBar().setBackgroundDrawable(

                new ColorDrawable(color_accent));

        //change status bar color

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {

            Window window = getWindow();

            window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);

            window.setStatusBarColor(darkenColor(color_accent));

        }

        return color_accent;

    }

    @ColorInt

    int darkenColor(@ColorInt int color) {

        float[] hsv = new float[3];

        android.graphics.Color.colorToHSV(color, hsv);

        hsv[2] *= 0.8f;

        return android.graphics.Color.HSVToColor(hsv);

    }

}