I'm trying to use the Accelerometer in my application but an error comes up and I have been trying to get around it. I'm not the best programmer but I'm trying to get better. the error is "accelerometer_CurrentValueChanged doesn't exist". How do I use this properly, many sites use this line of code and I'm wondering why it isn't working for me. I have all the API and I have the references that I am meant to have but it just wont work. What is it even there for? any help would be much appreciated
If you have this in your output view, you need to check in your .cs, if you have this methode.If you don't have this, you need to choice to delete property in your xaml or put the correct methode in your .cs.
Like this =>
void accelerometer_CurrentValueChanged(object sender, SensorReadingEventArgs<AccelerometerReading> e)
{
//Do your job
}
But please use your favorite web browser for do a little search before post in stackoverflow.
Accelerometer accelerometer;
public AccelerometerTest(){
accelerometer = new Accelerometer();
if (accelerometer != null)
{
accelerometer.CurrentValueChanged += accelerometer_CurrentValueChanged;
accelerometer.TimeBetweenUpdates = TimeSpan.FromMilliseconds(1);
accelerometer.Start();
}
}
void accelerometer_CurrentValueChanged(object sender, SensorReadingEventArgs<AccelerometerReading> e)
{
//do your code
}
Related
Windows phone 8.1 new to world. Basic function is back button click. Is that function not working properly is this windows phone 8.1. Is that behavior or i'm made mistake.
Below code using in Homepage but this code calling from all other class too while clicking back. I need to access below method only on Home page .
Please check below code and refer me good solution.
Please look my code:
public HomePage()
{
this.InitializeComponent();
Windows.Phone.UI.Input.HardwareButtons.BackPressed += HardwareButtons_BackPressed;
}
void HardwareButtons_BackPressed(object sender, BackPressedEventArgs e)
{
}
Thanks
It is working properly. The BackPressed event is working app-wide. Two options that come to my mind:
write eventhandler that would recognize the Page in which you currently invoke it - simple example can look like this:
private void HardwareButtons_BackPressed(object sender, Windows.Phone.UI.Input.BackPressedEventArgs e)
{
Frame frame = Window.Current.Content as Frame;
if (frame == null) return;
if (frame.Content is HomePage)
{
e.Handled = true;
Debug.WriteLine("I'm in HomePage");
}
else if (frame.CanGoBack)
{
frame.GoBack();
e.Handled = true;
}
}
second option - subscribe to Windows.Phone.UI.Input.HardwareButtons.BackPressed when you enter the Page and unsubscribe when you leave the Page. Note that in this way there are some pitfalls - you have to handle properly OnNavigatedTo, OnNavigatedFrom, Suspending and Resuming (more about Lifecycle here). Note also that the subscription should be done before others - for example NavigationHelper.
Some remarks - the above code should work, but it also depends on other circumstances:
if there is something other subscribed to BackPressed before (in App.xaml.cs) - remember that usually events are fired in order they were subscribed
check if you are using NavigationHelper - it also subscribes to BackPressed
remember not to subscribe multiple times
remember to allow the User to leave your HomePage
I'm is someone able to point me in the right direction for playing multiple streams/AAC media either with a MediaElement or MediaPlayer. I have 3 streams that get returned from a server and this gets updated every 10 seconds so I add the new streams to the collection.
Problem is when I change the source of the MediaElement in the Media_Ended event and call Play() again it has a slight gap in the audio. What I'm wondering is if I should be creating a playlist, and if so how is this done?
I've also tried this sample: http://phonesm.codeplex.com/
but same thing when changing the source - there is a slight delay in playing the next stream/AAC link. Here's my source:
<mmppf:MediaPlayer x:Name="MediaPlayerPlayer"
Source=".AACLinkHere"
MediaEnded="MediaEndedChangeSource"
MediaEndedBehavior="Reset"
IsLive="True">
and the code behind:
private void MediaEndedChangeSource(object sender, Microsoft.PlayerFramework.MediaPlayerActionEventArgs e)
{
try
{
MediaPlayerPlayer.SetSource(new FileStream());
MediaPlayerPlayer.Source = new Uri(".NextAACLinkHere", UriKind.RelativeOrAbsolute);
Debug.WriteLine("*********************************************************test...adfadfadf");
}
catch (Exception exception)
{
Debug.WriteLine(exception.Message);
}
}
if anyone has any ideas that would be appreciated. Sample code would be even better! Cheers.
I'm trying to use the C++ Accelerometer interface in the Windows::Devices::Sensors namespace on the Windows Phone 8. The code is very similar to a C# project I have that works, but I can't get the C++ event to fire like I can with my C# code.
My C++ code is a C# project with a C++ component, the C++ component just opens up the Accelerometer device for reading, and then tries to setup an event to fire whenever data is ready:
AccelerometerWrapper::AccelerometerWrapper() {
Accelerometer^ acc = Accelerometer::GetDefault();
accReading = acc->ReadingChanged::add( ref new TypedEventHandler<Accelerometer^, AccelerometerReadingChangedEventArgs^>(this, &AccelerometerWrapper::ReadingChanged));
}
void AccelerometerWrapper::ReadingChanged(Accelerometer^ sender, AccelerometerReadingChangedEventArgs^ e) {
...
}
Unfortunately, my ReadingChanged() function is never being called. I've looked around for a Start() method or somesuch but I can't find anything. I'm basing most of my knowledge off of the AccelerometerCPP example, but I can't actually test that as it is a generic WinRT (e.g. Windows 8, not Windows Phone 8) example, and my computer does not have an accelerometer. Everything compiles and runs, the event is just never triggered.
EDIT: I have successfully run a test to verify that I can manually call acc->GetCurrentReading(), so the accelerometer is working, it just seems to be the event that is not getting triggered.
Thank you in advance!
I'm not a C++ expert, but the new Accelerometer sensor works on my machine using C#.
private void MainPage_Loaded(object sender, RoutedEventArgs e)
{
var accelerometer = Accelerometer.GetDefault();
if (accelerometer != null)
{
accelerometer.ReadingChanged += accelerometer_ReadingChanged;
}
}
void accelerometer_ReadingChanged(Accelerometer sender, AccelerometerReadingChangedEventArgs args)
{
Debug.WriteLine(args.Reading.AccelerationX + ", " + args.Reading.AccelerationY + "," + args.Reading.AccelerationZ);
}
When we run that code snippet we can see the following expected output:
Just a guess for C++, do you need to cache the Accelerometer instance somewhere instead of letting it go out of scope?
My team is working on a team project aplication. At the moment, we need an event handler to check the connection status (if it's on/off).
I had big hopes in the System.Net.NetworkInformation Namespace, but unfortunately most important things aren't supported in wp8.
Can anyone help me with it a bit?
Edit 1#
It seems, I didn't specifed my problem well.
I'm using Mvvm light expresion, and it does not support that namespace or at least I can't add it.
I'm a newbie in using VS and c# atm, mayby I'm doing someting wrong, but simply when im trying to add the refernce to my project it does not list.
I haven't tried the System.Net.NetworkInformation namespace on WP8. But the new WP8 Windows.Networking.Connectivity Windows Phone Runtime namespace works just fine.
Use Windows.Networking.Connectivity.NetworkInformation.NetworkStatusChanged to know when network conditions change and use Microsoft.Phone.Net.NetworkInformation.NetworkInterface properties or Windows.Networking.Connectivity.NetworkInformation properties to see what's up.
private async void MainPage_Loaded(object sender, RoutedEventArgs e)
{
PrintNetworkStatus();
NetworkInformation.NetworkStatusChanged += NetworkInformation_NetworkStatusChanged;
}
void NetworkInformation_NetworkStatusChanged(object sender)
{
PrintNetworkStatus();
}
private void PrintNetworkStatus()
{
Dispatcher.BeginInvoke(() =>
MessageBox.Show(NetworkInterface.NetworkInterfaceType +
Environment.NewLine +
NetworkInterface.GetIsNetworkAvailable()));
}
When I test this code snippet on my WP8 Lumia 920 it works as expected. On startup when my phone is on WiFi only I see the following MessageBox:
And once I shutdown my WiFI router and the WiFi connection on the phone is lost I see the following MessageBox:
Try this:
bool isNetwork=NetworkInterface.GetIsNetworkAvailable();
if(!isNetwork)
{
//proceed with your code
}
In App.xaml.cs, create a property like below
/// <summary>
/// check if network is available
/// </summary>
public bool IsNetworkAvailable
{
get
{
return NetworkInterface.NetworkInterfaceType != NetworkInterfaceType.None;
}
}
And you can use this property anywhere in your project as in below code
if (((App) Application.Current).IsNetworkAvailable)
{
//Lines of Code
}
else
{
MessageBox.Show("Not Connected to Network!", "Checking Connection!",
MessageBoxButton.OK);
}
The error:
ReferenceError: Error #1069: Property startTransmit not found on flash.net.NetStream and there is no default value.
I've played around with cirrus plenty of times before and have yet to see this error before. But now I cant get it to go away.
My p2p Direct connect works great just fine. But every single time i see this error pop up. It throws an exception. I can't figure out where it's exactly happening.
Has anyone encountered this before? Any ideas where I should look?
Every client object needs to have the following functions defined.
client.stopTransmit=function($p1:*,$p2:*):void{
trace("stopTransmit called",$p1,$p2);
}
client.startTransmit=function():void{
trace("startTransmit called");
}
For example, set these in the onPeerConnect function:
sendStream.client = new Object();
sendStreamClient.onPeerConnect = function(subscriber:NetStream): Boolean{
var client:Object=new Object();
client.stopTransmit=function($p1:*,$p2:*):void{
trace("stopTransmit called",$p1,$p2);
}
client.startTransmit=function():void{
trace("startTransmit called");
}
subscriber.client=farStreamClient;
}
Additionally these need to be set on your sendStreamClient's client property:
sendStreamClient.client.stopTransmit=function($p1:*,$p2:*):void{
trace("stopTransmit called",$p1,$p2);
}
sendStreamClient.client.startTransmit=function():void{
trace("startTransmit called");
}
And they need to be set on your recieveStreamClient's client property.
On the server side script, you probably (or somebody else) have set up the application, so that it calls back a function -this time it is startTransmit-, and it isn't handled on the client side.
Remove the code from the server, or add a default value, or add a function to your code.
In my similar program, i had to add the function to my code (in my case it was not 'startTransmit') :
if ("NetConnection.Connect.Success" == e.info.code) {
netConnection.client=new Object();
netConnection.client.startTransmit=startTransmit; //no columns!
}
where startTransmit is
private function startTransmit():Boolean{
return true;
}
Are you sending h264 videos? I think it is to do with that...
If you add
public function startTransmit($p1:*,$p2:*):void{
}
public function stopTransmit():void{
}
where you have your media server connection it should work fine, at least it does for me :)
There is another netstream other than receiveStream and sendStream. You should set startTransmit and stopTransmit functions on the callerns netstream, something like this:
sendStreamClient.onPeerConnect = function(callerns:NetStream): Boolean{
var farStreamClient:Object=new Object();
farStreamClient.stopTransmit=function($p1:*,$p2:*):void{
trace("-------------farStream stopTransmit called!",$p1,$p2);
}
farStreamClient.startTransmit=function():void{
trace("-------------farStream startTransmit called!");
}
callerns.client=farStreamClient;
}
The problem is not on AMS or Red5 server. Even transmitting a video on P2P from an Android device triggers the same error.
The solution worked.
Actually the stopTransmit() sends a Boolean and an integer.
It would be amazing to know what they mean.
I have opened a bug on adobe bugbase in order to have it documented or removed.
Please vote:
https://bugbase.adobe.com/index.cfm?event=bug&id=3844856