protected async void CheckLogin()
{
IFileReadWrite fileReadWrite = Xamarin.Forms.DependencyService.Get <IFileReadWrite>();
LoginUserDetail serialized = new LoginUserDetail();
string userDetails = await fileReadWrite.ReadFromFile();
if (string.IsNullOrEmpty(userDetails))
{
var firstPage = new NavigationPage(new LoginPage());
MainPage = firstPage;
}
else
{
serialized = JsonConvert.DeserializeObject <LoginUserDetail>(userDetails);
if (serialized == null)
{
var firstPage = new NavigationPage(new LoginPage());
MainPage = firstPage;
}
else
{
var firstPage = new NavigationPage(new MainMasterPage());
MainPage = firstPage;
}
}
}
/// <summary>
/// 创建磁盘文件接口实例
/// </summary>
/// <param name="eType">序列化类型</param>
/// <returns>磁盘文件存取操作接口</returns>
public static IFileReadWrite CreateFileInstance(SerialType eType)
{
IFileReadWrite iReadWrite = null;
try
{
switch (eType)
{
case SerialType.Binary:
iReadWrite = new BinarySerialFile();
break;
case SerialType.Soap:
//iReadWrite = new SoapSerialFile();
break;
case SerialType.Xml:
//iReadWrite = new XmlSerialFile();
break;
default:
break;
}
}
catch (IOException)
{
iReadWrite = null;
}
return(iReadWrite);
}
/// <summary>
/// 保存数据
/// </summary>
/// <param name="filename"></param>
/// <param name="dh"></param>
/// <param name="ph"></param>
/// <returns></returns>
//private static bool DoSave(string filename, DataHelper dh, PeekHelper ph)
//{
// return DoSave(filename, dh, ph, null);
//}
/// <summary>
/// 保存数据
/// </summary>
/// <param name="filename"></param>
/// <param name="dh"></param>
/// <param name="ph"></param>
/// <returns></returns>
private static bool DoSave(string filename, DataHelper dh, PeakHelper ph, DetectPeakParameter dpp)
{
try
{
if (dh == null || ph == null)
{
return(false);
}
IFileReadWrite file = ReadWriteFactory.CreateFileInstance(SerialType.Binary);
try
{
file.OpenFile(filename, FileOpenFlag.Create);
List <MemoryStream> mlst = new List <MemoryStream>();
MemoryStream ms = new MemoryStream();
//save points
dh.Serialize(ref ms);
mlst.Add(ms);
file.WriteContent(mlst, 0);
//save peaks
mlst.Clear();
ms = new MemoryStream();
ph.SerializePeaks(ref ms);
mlst.Add(ms);
file.WriteContent(mlst, 1);
//save operates
//mlst.Clear();
//ms = new MemoryStream();
//ph.SerializeOperates(ref ms);
//mlst.Add(ms);
//file.WriteContent(mlst, 2);
//save Detect Peak Parameter
mlst.Clear();
ms = new MemoryStream();
dpp.Serialize(ref ms);
mlst.Add(ms);
file.WriteContent(mlst, 2);
}
finally
{
file.CloseFile();
}
return(true);
}
catch (Exception ex)
{
LogHelper.WriteError(ex);
return(false);
}
}
public async Task <bool> CheckLoginDetails(string userName, string password, bool rememberMe)
{
string url = Constants.LoginUrl;
LoginUserDetail loginRec = new LoginUserDetail();
loginRec.username = userName;
loginRec.password = password;
//return await UserLoginAPICall(url, loginRec, rememberMe);
// return true;
IFileReadWrite fileReadWrite = Xamarin.Forms.DependencyService.Get <IFileReadWrite>();
string serialized = JsonConvert.SerializeObject(loginRec);
bool x = await fileReadWrite.WriteToFile(serialized);
return(true);
}
/// <summary>
/// 打开数据
/// </summary>
/// <param name="filename"></param>
/// <returns></returns>
private static bool DoOpen(string filename, DataHelper dh, PeakHelper ph, DetectPeakParameter dpp)
{
try
{
//if (dh == null || ph == null) return false;
if (!File.Exists(filename))
{
return(false);
}
IFileReadWrite file = ReadWriteFactory.CreateFileInstance(SerialType.Binary);
try
{
file.OpenFile(filename, FileOpenFlag.Open);
List <MemoryStream> mlst = new List <MemoryStream>();
//open points
if (dh != null && file.ReadContent(0, out mlst))
{
dh.Deserialize(mlst[0]);
}
mlst = new List <MemoryStream>();
//open peaks
if (ph != null && file.ReadContent(1, out mlst))
{
ph.DeserializePeaks(mlst[0]);
}
mlst = new List <MemoryStream>();
////open operates
//if (ph != null && file.ReadContent(2, out mlst))
// ph.DeserializeOperates(mlst[0]);
//open Detect Peak Parameter
if (dpp != null && file.ReadContent(2, out mlst))
{
dpp.Deserialize(mlst[0]);
}
return(true);
}
finally
{
file.CloseFile();
}
}
catch (Exception ex)
{
LogHelper.WriteError(ex);
return(false);
}
}
public async Task <bool> CheckLoginDetails(string userName, string password, bool rememberMe)
{
string url = Constants.LoginUrl;
LoginModel loginrecord = new LoginModel();
loginrecord.Username = userName;
loginrecord.Password = password;
loginrecord.RememberMe = rememberMe;
if (rememberMe == true)
{
IFileReadWrite fileReadWrite = Xamarin.Forms.DependencyService.Get <IFileReadWrite>();
string serialized = JsonConvert.SerializeObject(loginrecord);
bool x = await fileReadWrite.WriteToFile(serialized);
}
else
{
IFileReadWrite fileReadWrite = Xamarin.Forms.DependencyService.Get <IFileReadWrite>();
fileReadWrite = null;
}
return(await UserLoginAPICall(url, loginrecord, rememberMe));
}
/// <summary>
/// 获得图形点集列表
/// </summary>
/// <returns></returns>
private List <List <PointF> > GetGraphList(List <string> filenames)
{
if (filenames == null || filenames.Count == 0)
{
return(null);
}
IFileReadWrite file = ReadWriteFactory.CreateFileInstance(SerialType.Binary);
string filename = "";
List <List <PointF> > lst = new List <List <PointF> >();
for (int i = 0; i < filenames.Count; i++)
{
filename = filenames[i];
if (!File.Exists(filename))
{
continue;
}
try
{
file.OpenFile(filename, FileOpenFlag.Open);
List <MemoryStream> mlst = new List <MemoryStream>();
//open points
if (file.ReadContent(0, out mlst))
{
DataHelper dh = new DataHelper();
dh.Deserialize(mlst[0]);
if (dh != null && dh.List != null && dh.List.Count > 0)
{
lst.Add(dh.List);
}
}
}
finally
{
file.CloseFile();
}
}
return(lst);
}
public FileService()
{
fileReadWrite = Xamarin.Forms.DependencyService.Get <IFileReadWrite>();
}
