title: I have a problem with this url_launcher pluging in flutter
body: <p>I'm working on a project that uses url_launcher, it works just fine on my device although it throws these errors and when I try to built the apk app it throws this error</p>
  <pre><code>    Note: Some input files use or override a deprecated API.
  Note: Recompile with -Xlint:deprecation for details.
  Note: D:\Programs\flutter\.pub-cache\hosted\pub.dartlang.org\webview_media-0.1.2\android\src\main\java\io\flutter\plugins\webviewflutter\FlutterWebView.java uses unchecked or unsafe operations.
  Note: Recompile with -Xlint:unchecked for details.
  Note: D:\Programs\flutter\.pub-cache\hosted\pub.dartlang.org\url_launcher-5.4.10\android\src\main\java\io\flutter\plugins\urllauncher\WebViewActivity.java uses or overrides a deprecated API.
  Note: Recompile with -Xlint:deprecation for details.
  </code></pre>
  <p>What is the problem and how can I overcome it, thanks.</p>
  <pre><code>my pubspec.yamel 
  
  
  version: 1.0.0+1
  
  environment:
    sdk: &quot;&gt;=2.1.0 &lt;3.0.0&quot;
  
  dependencies:
    flutter:
      sdk: flutter
    bot_toast: ^3.0.0
    url_launcher: ^5.4.10
    device_preview: ^0.4.5
    flutter_launcher_icons: ^0.7.5
    cupertino_icons: ^0.1.2
    rflutter_alert: ^1.0.3
    youtube_player_flutter: ^6.1.1
    # animated_text_kit: ^2.0.0
    # google_fonts: ^0.3.2
  
  dev_dependencies:
    flutter_test:
      sdk: flutter
  </code></pre>