public async static void Register()
{
if (!IsTaskRegistered())
{
try
{
BackgroundAccessStatus backgroundAccessStatus = await BackgroundExecutionManager.RequestAccessAsync();
doRegist();
switch (backgroundAccessStatus)
{
case BackgroundAccessStatus.Unspecified:
case BackgroundAccessStatus.Denied:
MessageDialogWithLanguage.showDialog("必须将该应用添加到锁屏，后台任务才能正常运行！", "You must add this app to lock screen so that the background task can run normally!");
break;
default:
break;
}
}
catch (Exception e)
{
if (e.HResult == -2147024846)
{
MessageDialogWithLanguage.showDialog("模拟器不支持后台任务，请使用本地计算机或远程计算机！", "The simulator doesn't support background task. Please try again using local computer or remote computer!");
}
}
}
}
private void showMessage()
{
if (!hasShow)
{
hasShow = true;
MessageDialogWithLanguage.showDialog("定位功能没有开启,这将导致应用的定位和地理围栏功能不可用，请通过系统设置开启定位功能！", "The device's location function is not open, this will cause the location and geofence function of this app is not available. Please open through the system setting!");
}
}
//创建geofence按钮响应事件
private void btn_create_Click(object sender, RoutedEventArgs e)
{
string name = txb_identifier.Text;
double lat;
double longit;
double radius;
if (name == "")
{
MessageDialogWithLanguage.showDialog("请输入名称", "Please input the name!");
return;
}
if (!(Double.TryParse(txb_latitude.Text, out lat) && Double.TryParse(txb_longitude.Text, out longit) && Double.TryParse(txb_radius.Text, out radius)))
{
MessageDialogWithLanguage.showDialog("数据格式不正确", "The data format is not correct");
return;
}
if (lat < 0 || lat > 90)
{
MessageDialogWithLanguage.showDialog("纬度超出范围，应在0-90之间！", "Latitude out of scope, should be between 0-90！");
return;
}
if (longit > 180 || longit < -180)
{
MessageDialogWithLanguage.showDialog("经度超出范围，应在-180-180之间！", "Longitude out of scope, should be between -180-180！");
return;
}
if (GeofenceManager.Instance.CreateGeofence(name, lat, longit, radius, async(geofence, newState) =>
{
await Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () => stateChangedCallback(geofence, newState));
}))
{
MessageDialogWithLanguage.showDialog("创建成功", "Create success!");
GoBack();
}
else
{
MessageDialogWithLanguage.showDialog("该名称已存在，请尝试其他名称！", "This name has been used. Please try with anthor name!");
}
}