f8/sdk/dart/package-fidl_fidl/AsyncBinding/AsyncBinding.md

# AsyncBinding<T> constructor







AsyncBinding<T>(String $interfaceName)


<p>Creates a binding object in an unbound state.</p>
<p>Rather than creating a <a href="../../package-fidl_fidl/AsyncBinding-class.md">AsyncBinding&lt;T&gt;</a> object directly, you typically create
a <code>TBinding</code> object, which are subclasses of <a href="../../package-fidl_fidl/AsyncBinding-class.md">AsyncBinding&lt;T&gt;</a> created by the
FIDL compiler for a specific interface.</p>



## Implementation

```dart
AsyncBinding(this.$interfaceName) {
  _reader
    ..onReadable = _handleReadable
    ..onError = _handleError;
}
```