1.
2. 内部封装示例代码
namespace FlightBase.Model
{
// 一个第三方框架,帮我们坚挺属性值(例如:SearchingStatus)的改变,改变以后会调用OnSearchingStatusChanged方法
[ImplementPropertyChanged]
public class SearchingSatelliteModel
{
public SearchingStatus SearchingStatus { get; set; }
// SearchingStatusChangedAction,提供给外界SearchingStatus属性改变时候的处理事件,这个事件在OnSearchingStatusChanged方法中调用(?.Invoke , 如果不空就调用)
public Action<SearchingStatus> SearchingStatusChangedAction { get; set; }
public void OnSearchingStatusChanged()
{
SearchingStatusChangedAction?.Invoke(this.SearchingStatus);
}
}
public enum SearchingStatus
{
None = 0,
Searching,
Succeed
}
3. 外界绑定Action代码
- 在实例化SearchingSatelliteModel对象的时候,直接关联Action
- searchingStatus 是SearchingStatusChangedAction 传递过来的参数
Paste_Image.png
Model = new SearchingSatelliteModel()
{
SearchingStatusChangedAction = searchingStatus =>
{
switch (searchingStatus)
{
case SearchingStatus.Searching:
UiModel.SearchingTip = UiModel.DoSearchingTip;
break;
case SearchingStatus.Succeed:
UiModel.SearchingTip = UiModel.SearchSucceedTip;
UiModel.SearchingImage = "bg_satellite_search__succeed.png";
break;
}
}
};
