private async Task HandleCLeanMapAsync()
{
try
{
if (CleanMapPicker.SelectedItem.ToString() == "--全部--")
{
if (await DisplayAlert("警告", "確定要刪除所有地圖嗎？", "Yes", "No"))
{
// 刪除所有地圖資料
NavigraphStorage.DeleteAllNavigraph();
await DisplayAlert("訊息", "刪除成功", "OK");
}
}
else
{
if (await DisplayAlert("警告", string.Format("確定要刪除 地圖:{0} 嗎？", CleanMapPicker.SelectedItem), "Yes", "No"))
{
// 刪除選擇的地圖資料
NavigraphStorage.DeleteNavigraph(CleanMapPicker.SelectedItem.ToString());
await DisplayAlert("訊息", "刪除成功", "OK");
}
}
}
catch
{
await DisplayAlert("錯誤", "刪除地圖時發生不明錯誤", "確定");
}
CleanMapPicker.SelectedItem = "";
ReloadNaviGraphItems();
}
public void StorageTest()
{
Debug.WriteLine("StorageTest start.");
NavigraphStorage.DeleteAllNavigraph();
NavigraphStorage.SaveNavigraphInformation("test1", "");
NavigraphStorage.SaveNavigraphInformation("test1", "");
string[] Maps = NavigraphStorage.GetAllNavigraphs();
Assert.AreEqual(1, Maps.Length);
NavigraphStorage.SaveNavigraphInformation("test2", "");
NavigraphStorage.SaveNavigraphInformation("test3", "");
Maps = NavigraphStorage.GetAllNavigraphs();
Assert.AreEqual(3, Maps.Length);
NavigraphStorage.DeleteNavigraph("test4");
Maps = NavigraphStorage.GetAllNavigraphs();
Assert.AreEqual(3, Maps.Length);
NavigraphStorage.DeleteNavigraph("test3");
Maps = NavigraphStorage.GetAllNavigraphs();
Assert.AreEqual(2, Maps.Length);
NavigraphStorage.DeleteAllNavigraph();
Maps = NavigraphStorage.GetAllNavigraphs();
Assert.AreEqual(0, Maps.Length);
TestClose();
Debug.WriteLine("StorageTest done.");
}
void Item_Delete(object sender, EventArgs e)
{
var item = (Location)((MenuItem)sender).CommandParameter;
if (item != null)
{
NavigraphStorage.DeleteNavigraph(item.UserNaming);
viewModel.LoadNavigationGraph();
}
}