I'm trying to implement something similar to the grid demo where it shows to use the async pipe with the data binding. I've bound to a service where I provide an observable GridDataResult.... and it works fine... BUT, when the data changes, my grid does not automatically refresh. I have to mouse over or click the grid for it to recognize the data changes that occurred to the observable. ??? I've tried it a few different ways, all with the same result. Anyone else experience this / run into this?
Thanks in advance!
-Brian
Related
I want to identify the scroll end action, which could not be achieved through the existing APIs from ScrollView. Because, when we scrolled fast, event after the pointer/hand is taken, certain scrolling is took place on its own. My requirement is to catch the point when the scrolling is ended on its own.
I can achieve this scenario in Xamarin.Android implementing Java.Lang.IRunnable in a custom class and by using the Run() method in it. I need to achieve this in Xamarin iOS.
Could you please provide a valid suggestion for this query ?
You can use "DecelerationEnded" event in UIScrollViewer to achieve your requirement.
I am trying to make an application that will "trigger" when a certain image is shown on screen. I have the app streaming the camera to the screen inside the app using AVCaptureSession. Now i was wondering how to make some sort of EventHandler for each frame of the video, in which i will check to see if the image contains one of my triggers. Does anyone know the best way to handle this? I could not find any resources on an OnFrame EventHandler for AVCaptureSession.
This is the tutorial i followed for showing the camera on screen
https://github.com/messier16/FullCameraPage/blob/master/FullCameraApp.iOS/CameraPageRenderer.cs
Any advice is awesome. Thank you!
I ended up doing a while loop inside of overriden ViewWillAppear() to grab the frame consistently
1、I want to create a circle and set an image that customized to fill the circle，use this as a marker on the map, not only could change the image but also the color of circle anytime，what can I do to implements this function? Please look at the picture below!
2、Like your CityMaps app show，when I enlarge the map, some business icon that hide are show on the map，which are hide again while shrink the map, How to achieve this effect？
3、After I initialization the Object Marker and called the method marker.setFadeTime(3000)，the software give my tips the method is no exist and I see the class Marker.java but really not find the method，Why is it so？
4、I want to add some stars beside the marker like this:
What can I do to add the stars？the label only can set the text beside the marker.
5、I want to load your maps at the fragment，not the activity that extends FragmentActivity，I found the SupportCitymapsMapFragment is no use，What I can do to complete this requirement?
6、In your apps，it is locate that place after input New York in the search box，What can i do to complete this function whatever i input？
7、During I develop the apps about the Citymaps，I found a serious problem so that your apps had happend too. When I run the apps， the program force flash back all of a sudden and I run your apps Citymaps at this time，the problems are same of the front，I found some error in logical view that is follows：15327-15374/com.map.maplbs A/libc﹕ Fatal signal 11 (SIGSEGV) at 0xdeadbaad (code=1), thread 15374 (Thread-1819).
To solve the problem，I must restart my device. Why is it so？
I am a developer on the Citymaps SDK, I will do my best to answer your questions.
1) I recommend using the Android Canvas API to construct the images, and then use a Marker to display it on the map. See the documentation for details: http://developer.citymaps.com/markers
2) This is built into the Citymaps BusinessLayer. This functionality is not exposed through an API. If you wish to use the Citymaps BusinessLayer, you should create a CitymapsMapView or CitymapsMapFragment/SupportCitymapsMapFragment and it will automatically be added to your map.
3) At this time, there appears to be a known issue with the fadeTime API. Thank you for bringing this to our attention. We will fix it in an upcoming release. For now, you can animate the alpha property of the Marker.
4) Once again, the functionality of the BusinessLayer is not directly exposed. If you wish to create similar markers, I recommend you construct the image using Android's Canvas and then adding it as a Marker to the map.
5) If you wish to load the map inside of a fragment, you can accomplish this using child fragments (check Android documentation for more details). You can also accomplish this by instantiating CitymapsMapView or MapView directly and adding it to your view hierarchy either in XML or in code. However if you do this, remember to call the lifecycle methods on your map instance, or else the map will not behave properly.
6) If you wish to have a search in your app, it is up to you to implement this feature. We do not currently provide a search API out of the box.
7) Thank you for the bug report. We will investigate this issue and fix it in a future release.
If you have any more questions, feel free to ask, and thank you for using the Citymaps SDK.
I am using <xpScriptBlock> to store the contents of two rather long client side functions that loads an ExtJS grid. I can call the function using clientside javascript just fine.
I discovered that I need to show a different grid based on a condition in the underlining document. To reference the backend I moved the code to serverside and then tried to call the grid using view.postScript. This does not work and is the basis of my question.
Is this approach even possible? I do not wish to put all the code into the event. The functions are quite long and better kept in a script block for readability and maintainability. The functions are definitely loaded in the client, as I can manually load them using the firebug console. Perhaps I am missing something simple so I wanted to ask before changing my approach.
var typePO = document1.getItemValueString("typePO");
if(typePO == "AFS"){
view.postScript("loadGridAFS();")
} else {
view.postScript("loadGridOther();")
}
This code is in the serverside onClientLoad event of a panel. I have tried adding the 'return' keyword and it makes no difference.
UPDATE: I can't even get simple alerts to work using view.postscript(). Does this method only work in certain types of events in SSJS???
After some experimenting using a simple alert I can say that view.postScript() does NOT work everywhere.
For a test, I put the same code in an six event of the xpage. Here is an example of the code I used: view.postScript("alert('onClientLoad');"); I just changed the message to match the event.
Here are the results:
onClientLoad = nothing
beforePageLoad = XSP error
afterPageLoad = WORKS!
afterRestoreView = nothing
beforeRenderResponse = WORKS!
afterRenderResponse = nothing
I haven't tried every available event out there, but the bottom line here is that you shouldn't count on view.postscript() to work everywhere. And if it does do nothing, try a simple alert first to see of the event supports view.postscript before questioning the client javascript code you are attempting to run.
I have created a wxGrid with custom table. Whenever the user scrolls down to very bottom of the grid, I have to load the next 100 rows from my table. I tried EVT_SCROLL_BOTTOM() but I am not able to detect it. What is the right thing to do? Thanks.
I don't know the answer to your question but I am reminded that the grid was designed to work with an object of type wxGridTableBase that can be extended by the application. By extending this class, you should be able to do whatever caching you want inside of the extended object.
You could bind the scroll win event for the grid. I have encountered almost the same requirement as you. :)
self.Bind(wx.EVT_SCROLLWIN, self.OnScroll)