当应用程序启动时，如果离线，我会从本地存储加载列表；如果在线，则从 Web 服务加载此列表（然后写入本地存储）。
我的问题是，为了调试此问题，我需要完全关闭应用程序，然后重新启动它（因此结束 Visual Studio 调试会话）。
应用程序将启动，但在我再次调用特定方法时会崩溃。我无法找出它在哪里出错。由于调试会话已不再连接，因此也没有任何帮助。
奇怪的是。我甚至尝试将方法调用和方法内容包装在 try catch 块中（以尝试弄清楚问题所在），但它仍然崩溃。
以下是代码片段。
我的问题是，为了调试此问题，我需要完全关闭应用程序，然后重新启动它（因此结束 Visual Studio 调试会话）。
应用程序将启动，但在我再次调用特定方法时会崩溃。我无法找出它在哪里出错。由于调试会话已不再连接，因此也没有任何帮助。
奇怪的是。我甚至尝试将方法调用和方法内容包装在 try catch 块中（以尝试弄清楚问题所在），但它仍然崩溃。
以下是代码片段。
class MyCouncilsFragment:Fragment
{
public override View OnCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
{
//my councils
base.OnCreateView(inflater, container, savedInstanceState);
var view = this.View ?? inflater.Inflate(Resource.Layout.mycouncils, container, false);
string councils = GoIO.LoadText(CC.FILE_MYCOUNCILS) ?? "";
List<Council> mycouncils = Shared.Serialization.Deserialize<List<Shared.Council>>(councils) ?? new List<Council>();
MyGlobals.myCouncilsList = mycouncils;
Spinner spncouncils = view.FindViewById<Spinner>(Resource.Id.spnCouncils);
if(mycouncils.Count > 0)
{
spncouncils.Enabled = true;
CouncilSpinnerAdapter adapter = new CouncilSpinnerAdapter(Main_Act.context, Resource.Layout.spn_row_text, MyGlobals.myCouncilsList.ToArray());
spncouncils.Adapter = adapter;
Button btnSelect = view.FindViewById<Button>(Resource.Id.btnSelect);
btnSelect.Enabled = true;
btnSelect.Click += delegate
{
Council sessionCouncil = MyGlobals.myCouncilsList[spncouncils.SelectedItemPosition];
//sessionCouncil is not the problem, i've tested that
try
{
Main_Act.loadLists();
//the issue is when this method is called. (however the call works fine when calling it from a different fragment thats basically in the same state)
}
catch
{
}
//List<Designer> x = Shared.WebServerHelper.WebCall<Designer>("https://" + MyGlobals.sessionCouncil.service_url + "/design/");
//MyGlobals.sessionColours = x[0];
//MyGlobals.hintText = MyGlobals.getSubtleColour(MyGlobals.getColor(MyGlobals.sessionColours.controlcolour), 20);
//var intent = new Intent(this.Activity, typeof(MyDetails_Act));
//StartActivity(intent);
};
}
else
{
//List<Council> emptylist = new List<Council>();
//Council empty = new Council();
//empty.council_name = "no councils added";
//emptylist.Add(empty);
//spncouncils.Enabled = false;
//Button viewall = view.FindViewById<Button>(Resource.Id.btnSelect);
//viewall.Visibility = ViewStates.Gone;
//TextView nb = view.FindViewById<TextView>(Resource.Id.nb);
//nb.Visibility = ViewStates.Visible;
}
return view;
}
这是被调用的方法
public static void loadLists()
{
try
{
// // _| _|_| _|_| _|_|_|
// // _| _| _| _| _| _| _|
// // _| _| _| _|_|_|_| _| _|
// // _| _| _| _| _| _| _|
// // _|_|_|_| _|_| _| _| _|_|_|
if (MyGlobals.sessionCouncil != null)
{
var connectivityManager = (ConnectivityManager)context.GetSystemService(ConnectivityService);
var activeConnection = connectivityManager.ActiveNetworkInfo;
if (activeConnection != null && activeConnection.IsConnected)
{
loadConsentsFromWeb();
Console.WriteLine("getting inspectiontypes online");
loadInspectionTypesOnline();
}
else
{
try
{
loadConsentsFromFile();
loadInspectionTypesOffline();
}
catch
{
Toast.MakeText(context, "Unable to load consents from file", ToastLength.Long).Show();
}
}
try
{
loadBookings();
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
}
}
else
{
//inspection types failed to load from file or from web. propmt user to reaload app? or something?
Toast.MakeText(context, "Definition Elements failed to load, please restart the app", ToastLength.Short).Show();
System.Environment.Exit(0);
}
}
catch
{
}
}
注意，我尝试将整个方法放入try块中，但应用程序仍然崩溃。