Merge pull request #155 from AlexVincent525/master

Fix abstract method error  && swift version error

android/src/main/java/com/pichillilorenzo/flutter_inappbrowser/FlutterWebView.java

@@ -229,4 +229,11 @@ public class FlutterWebView implements PlatformView, MethodCallHandler  {
       webView.loadUrl("about:blank");
     }
   }
+
+  @Override
+  public void onInputConnectionLocked() {}
+
+  @Override
+  public void onInputConnectionUnlocked() {}
+
 }

ios/flutter_inappbrowser.podspec

@@ -18,5 +18,6 @@ A new Flutter plugin.
   s.dependency 'Flutter'
   
   s.ios.deployment_target = '8.0'
+  s.swift_version = '4.0'
 end