Plugin uses Unchecked or Unsafe Operations

Note: Some input files use or override a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: /Users/munishbahri/AGS/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_webview_plugin-0.3.0+2/android/src/main/java/com/flutter_webview_plugin/WebviewManager.java uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.

Start with android/src/main/java/com/flutter_webview_plugin/WebviewManager.java, the file named in the compiler output, and rebuild with -Xlint:unchecked to identify the unchecked operations. Done means the plugin builds without the reported unchecked or unsafe-operation warning, while checking whether the deprecated API note is a separate issue.

Written by the indexing model from the issue text.