title: Flutter change status bar brightness to dark
body: <p>I tried several ways to make status bar icons dark, but after home press and returning to app status bar icons are white!
  it seems that its flutter bug.</p>
  
  <p>but in iOS it works fine.</p>
  
  <p>i tried these ways :</p>
  
  <p>android app style:</p>
  
  <pre><code>&lt;item name="android:windowLightStatusBar"&gt;false&lt;/item&gt;
  </code></pre>
  
  <p>AppBar brightness:</p>
  
  <pre><code>brightness: Brightness.dark
  </code></pre>
  
  <p>Flutter API:</p>
  
  <pre><code>SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle.dark.copyWith(
          statusBarIconBrightness: Brightness.dark
      ));
  </code></pre>
  
  <p>flutter_statusbarcolor package :</p>
  
  <pre><code>import 'package:flutter_statusbarcolor/flutter_statusbarcolor.dart';
  
  FlutterStatusbarcolor.setStatusBarWhiteForeground(false);
  </code></pre>