/// <summary>
/// 检查是否更新
/// </summary>
protected async void _checkIsUpgrade()
{
try
{
//获取新版本
HsLabelValue item = await getLastestIPAInfo();
//取版本号
HsVersion version = HsVersion.Parse(item.GetValueByLabel("Version"));
string upgradeUri = item.GetValueByLabel("UpgradeURI");
//检查版本最后一位，如果是奇数表明是一般更新，偶数表明是强制更新
IPlatformExtension pe = DependencyService.Get <IPlatformExtension>();
HsVersion currentVersion = HsVersion.Parse(pe.GetApplicationVersion());
if (pe != null && version > currentVersion) //存在新版本
{
if (version.Type == HsVersion.EType.Force)
{
await this.DisplayAlert($"发现新版本 {version}，请立即更新", $"当前版本 {currentVersion}", "确定");
pe.OpenURL(upgradeUri);
}
else
{
if (await this.DisplayAlert($"发现新版本 {version}，是否更新", $"当前版本 {currentVersion}", "是", "否"))
{
pe.OpenURL(upgradeUri);
}
else
{
this.onUpgradeComplete();
}
}
}
else
{
this.onUpgradeComplete();
}
}
catch (Exception e)
{
this.ShowError(e.Message);
this.onUpgradeComplete();
}
}
public HsImage(Stream imageStream)
{
byte[] datas = new byte[imageStream.Length];
imageStream.Seek(0, SeekOrigin.Begin);
imageStream.Read(datas, 0, datas.Length);
#region 获取图像大小
IPlatformExtension platformExtension = DependencyService.Get <IPlatformExtension>(DependencyFetchTarget.GlobalInstance);
Tuple <System.Drawing.Size, byte[]> imageData = platformExtension.ReduceImage(datas, 800);
System.Drawing.Size size = imageData.Item1;
datas = imageData.Item2;
#endregion
#region 记录元数据
byte[] metabs = new byte[METALEN];
using (MemoryStream ms = new MemoryStream(metabs))
{
//以小端方式记录元数据。
using (BinaryWriter bw = new BinaryWriter(ms, Encoding.Unicode))
{
bw.Write(ENDIAN_LITTLE); //记录第一位
bw.Write(JPG); //记录2-5位
bw.Write(size.Width); //记录6-9位
bw.Write(size.Height); //记录10-13位
}
}
#endregion
_imageData = ImageSource.FromStream(() =>
{
return(new MemoryStream(datas));
});
_imageDataString = HsBase64.ToBase64(metabs.Concat(datas).ToArray());
}
private async Task downloadAndOpen(HsFile item)
{
//如果文件存在与本地，则直接打开，否则先下载再打开。
string[] cachePath = new string[] { "Cache", "Files" };
string cachefilename = $"{item.FileHash}.{item.FileName}";
IPlatformExtension pe = DependencyService.Get <IPlatformExtension>(DependencyFetchTarget.GlobalInstance);
if (!pe.FileExist(cachefilename, cachePath)) //文件不存在需要下载
{
int index = 0;
using (MemoryStream ms = new MemoryStream())
{
while (true)
{
//下载文件...
HsLabelValue result = await GetWSUtil().GetSysFileSeg(GetLoginData().ProgressId, item.FileHash, index);
if (result == null) //文件读取完毕
{
break;
}
byte[] buffer = HsBase64.FromBase64ToBytes(result.GetValueByLabel("Data"));
//数据解压缩
buffer = HsZlib.DecompressData(buffer);
ms.Write(buffer, 0, buffer.Length);
index++;
}
byte[] fileData = ms.ToArray();
Debug.WriteLine(HsMD5.EncryptionMD5(fileData));
await pe.WriteFile(cachefilename, fileData, 2, cachePath);
}
await downloadAndOpen(item);
}
else
{
List <string> previewFiletypes = new List <string>()
{
"DOC", "DOCX",
"XLS", "XLSX",
"PPT", "PPTX",
"PDF",
"TXT", "TEXT",
"JPG", "PNG"
};
if (previewFiletypes.Contains(item.FileType.ToUpper()))
{
string url = pe.GetFileURL(cachefilename, cachePath);
if (!string.IsNullOrWhiteSpace(url))
{
Panel_PreviewFile panel = new Panel_PreviewFile();
panel.Source = new UrlWebViewSource()
{
Url = url
};
await Navigation.PushAsync(panel);
}
}
else
{
pe.CallFile(cachefilename, cachePath);
}
}
}
protected override async Task <string> update()
{
if (hasRretrieveAccount)
{
//获取账套信息
string data = await((HsApp)Application.Current).WSUtil.Login(this.ucUserName.ControlValue, this.ucPassword.ControlValue, this.ucDb.ControlValue);
//登录成功后将用户信息存入Application中，以便全局调用
XElement xReturnData = XElement.Parse(data);
((HsApp)Application.Current).LoginData = new LoginData(
xReturnData.GetFirstElementValue("ProgressId"),
xReturnData.GetFirstElementValue("UserBh"),
xReturnData.GetFirstElementValue("UserName"),
xReturnData.GetFirstElementValue("DeptBh"),
xReturnData.GetFirstElementValue("DeptMc"),
xReturnData.GetFirstElementValue("RoleBhs"),
xReturnData.GetFirstElementValue("RoleMcs"));
XElement xMenus = xReturnData.Element("Menus");
//将登录信息存入本地
try
{
XElement xLastLogin = new XElement("Data");
xLastLogin.Add(new XElement("UserName", this.ucUserName.ControlValue));
xLastLogin.Add(new XElement("Password", this.ucIsSaved.Checked ? this.ucPassword.ControlValue : ""));
xLastLogin.Add(new XElement("Account", this.ucDb.ControlValue));
xLastLogin.Add(new XElement("IsSaved", this.ucIsSaved.Checked));
IPlatformExtension pe = DependencyService.Get <IPlatformExtension>(DependencyFetchTarget.GlobalInstance);
//await HsLocalStorageHelper.WriteAllText(LASTLOGINFILENAME, xLastLogin.ToString());
await pe.WriteTextFile(LASTLOGINFILENAME, xLastLogin.ToString());
}
catch (Exception ex)
{
this.ShowError(ex.Message);
}
this.LoginSuccess?.Invoke(this, new HsEventArgs <XElement> {
Data = xMenus
});
return(null);
}
else
{
string data = await((HsApp)Application.Current).WSUtil.GetDbs();
this.ucDb.Datas = data;
this.hasRretrieveAccount = true;
try
{
IPlatformExtension pe = DependencyService.Get <IPlatformExtension>(DependencyFetchTarget.GlobalInstance);
//读入上次登录配置信息
//string lastData = await HsLocalStorageHelper.ReadAllText(LASTLOGINFILENAME, "");
string lastData = await pe.ReadTextFile(LASTLOGINFILENAME);
if (!string.IsNullOrWhiteSpace(lastData))
{
XElement xLastLogin = XElement.Parse(lastData);
this.ucUserName.ControlValue = xLastLogin.GetFirstElementValue("UserName");
this.ucPassword.ControlValue = xLastLogin.GetFirstElementValue("Password");
this.ucDb.ControlValue = xLastLogin.GetFirstElementValue("Account");
this.ucIsSaved.Checked = bool.Parse(xLastLogin.GetFirstElementValue("IsSaved", false.ToString()));
}
}
catch (Exception e)
{
throw e;
}
return(null);
}
}
public override async Task GetItems()
{
try
{
this.isRetrieveing = true;
if (string.IsNullOrWhiteSpace(Djlx))
{
throw new HsException($"属性Djlx或未定义");
}
if (string.IsNullOrWhiteSpace(DjId))
{
return;
}
//
this.Reset();
IPlatformExtension pe = DependencyService.Get <IPlatformExtension>(DependencyFetchTarget.GlobalInstance);
string[] cachePath = new string[] { "Cache", "Images" };
//获取图像哈希集合
List <HsLabelValue> items = await GetWSUtil().GetSysImageHashDatas(GetLoginData().ProgressId, Djlx, DjId);
//逐幅获取图像，如果存在本地缓存则使用本地图片。
foreach (HsLabelValue item in items)
{
//图片的Hash值
string hashData = item.GetValueByLabel("HashData");
string imageDataString = await pe.ReadTextFile(hashData, cachePath);
//本地缓存中不存在文件，则从网络中获取，并写入本地。
if (string.IsNullOrWhiteSpace(imageDataString))
{
string result = await GetWSUtil().GetSysImageById(GetLoginData().ProgressId, item.GetValueByLabel("ImageId"));
XElement xData = XElement.Parse(result);
imageDataString = xData.GetFirstElementValue("Data");
await pe.WriteTextFile(hashData, imageDataString, cachePath);
}
datas.Add(new HsImage(imageDataString)
{
HashData = hashData
});
}
hasRrtrieve = true;
}
catch (Exception e)
{
throw e;
}
finally
{
this.isRetrieveing = false;
}
}
protected override async void callAction(HsActionKey actionKey, object item)
{
try
{
if (actionKey == SysActionKeys.关闭)
{
await PopupNavigation.PopAsync();
}
else if (actionKey == SysActionKeys.修改密码)
{
callAction(SysActionKeys.关闭, null);
this.onPopupData(actionKey, null);
}
else if (actionKey == SysActionKeys.UserDo1)
{
//清除缓存
long size = await HsDependencyService <IPlatformExtension> .Instance().DirectoryDelete("Cache");
await this.DisplayAlert("缓存删除成功。", size != 0?$"释放空间{size.GetFileSizeString()}" : "无缓存文件", "确定");
callAction(SysActionKeys.关闭, null);
}
else if (actionKey == SysActionKeys.UserDo2)
{
//获取新版本
HsLabelValue lvVersion = await getLastestIPAInfo();
//取版本号
HsVersion version = HsVersion.Parse(lvVersion.GetValueByLabel("Version"));
string upgradeUri = lvVersion.GetValueByLabel("UpgradeURI");
//检查版本最后一位，如果是奇数表明是一般更新，偶数表明是强制更新
IPlatformExtension pe = DependencyService.Get <IPlatformExtension>();
HsVersion currentVersion = HsVersion.Parse(pe.GetApplicationVersion());
if (pe != null && version > currentVersion) //存在新版本
{
if (version.Type == HsVersion.EType.Force)
{
await this.DisplayAlert($"发现新版本 {version}，请立即更新", $"当前版本 {currentVersion}", "确定");
pe.OpenURL(upgradeUri);
}
else
{
if (await this.DisplayAlert($"发现新版本 {version}，是否更新", $"当前版本 {currentVersion}", "是", "否"))
{
pe.OpenURL(upgradeUri);
}
}
}
else
{
await this.DisplayAlert("当前是最新版本", $"当前版本 {currentVersion}", "确定");
}
callAction(SysActionKeys.关闭, null);
}
else if (actionKey == SysActionKeys.注销)
{
//注销
if (await this.DisplayAlert("是否要注销？", "", "是", "否"))
{
this.onPopupData(actionKey, null);
callAction(SysActionKeys.关闭, null);
}
}
}
catch (Exception ex)
{
this.ShowError(ex.Message);
}
}