using UnityEditor; 

[CustomEditor(typeof(JC.ScrollPanel))]  
public class ScrollPanelInspector : Editor
{
    private JC.ScrollPanel scrollPanel;  
    private SerializedProperty initType,startIndex, spacing, openReceiveItemViewInfo, onReceiveItemViewInfo, prefabs , offset;  

    void OnEnable()  
    {  
        scrollPanel = target as JC.ScrollPanel;
        initType = serializedObject.FindProperty("initType");
        startIndex = serializedObject.FindProperty("startIndex");
        spacing = serializedObject.FindProperty("spacing");
        offset = serializedObject.FindProperty("offset");
        openReceiveItemViewInfo = serializedObject.FindProperty("openReceiveItemViewInfo");  
        onReceiveItemViewInfo = serializedObject.FindProperty("onReceiveItemViewInfo");  
        prefabs = serializedObject.FindProperty("prefabs");  
    }

    public override void OnInspectorGUI()  
    {  
        serializedObject.Update();
        EditorGUILayout.PropertyField(initType);
        EditorGUILayout.PropertyField(startIndex);
        EditorGUILayout.PropertyField(spacing);
        EditorGUILayout.PropertyField(offset);
        EditorGUILayout.PropertyField(openReceiveItemViewInfo);  
        if (scrollPanel.openReceiveItemViewInfo) {
            EditorGUILayout.PropertyField(onReceiveItemViewInfo); 
        }
        EditorGUILayout.PropertyField(prefabs);
        serializedObject.ApplyModifiedProperties();
        PrefabUtility.RecordPrefabInstancePropertyModifications(scrollPanel);
    }  
}