using UnityEngine;

public class DialogMakeScript : MonoBehaviour
{
    void Start ()
    {
        MakeDialog("たいとる", "なにかめっせーじ", "OK");
    }

    void MakeDialog( string titleStr, string msg, string buttonLabel )
    {
#if UNITY_ANDROID && !UNITY_EDITOR
        using( var unityPlayer = new AndroidJavaClass("com.unity3d.player.UnityPlayer") )
        {
            var activity = unityPlayer.GetStatic<AndroidJavaObject>("currentActivity");
            var andJavaRunnable = new AndroidJavaRunnable(()=>{
            using ( var dialogBuilder = new AndroidJavaObject( "android.app.AlertDialog$Builder", activity ) )
            {
                dialogBuilder.Call<AndroidJavaObject>( "setTitle", titleStr );
                dialogBuilder.Call<AndroidJavaObject>( "setMessage", msg );
                dialogBuilder.Call<AndroidJavaObject>( "setPositiveButton", buttonLabel, null );
                var dialog = dialogBuilder.Call<AndroidJavaObject>( "create" );
                dialog.Call("show");
            }
            });
            activity.Call( "runOnUiThread", andJavaRunnable );
        }
#endif
    }
}