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Unity Message To Web

1. Create your Unity Script​

public class TestScript : MonoBehaviour
{
    public class TestDataModel
    {
        public string str_value;
        public int int_value;
        public double float_value;
    }

    public EdgeCanvas m_edgeCanvas;
   
    private void OnGUI()
    {
        if (GUILayout.Button("SendMessage"))
        {
            var value = new TestDataModel()
            {
                str_value = "Hello UWebView2",
                int_value = 100,
                float_value= 1.234d
            };
            m_edgeCanvas.PostJsonMessage(JsonUtility.ToJson(value));
        }  
    }
}

2. Create your HTML Page​

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script>
        window.chrome.webview.addEventListener('message', arg => {
            console.log(arg);
        });
    </script>
</head>
<body>
    <h1 style="color:red">Test JavsScirpt</h1>
</body>
</html>

message

3. Play​

Set the address of this HTML in the Source property of EdgeCanvas. Clicking the button will result in the following message.

message2