My Cesium infobox is empty after I dynamically select an element.
This is how I'm selecting the element.
public selectById(id: string): void {
console.log('selecting ' + id);
if (id != null) {
// this.viewer is Cesium.Viewer => https://cesiumjs.org/Cesium/Build/Documentation/Viewer.html?classFilter=viewer
this.viewer.selectedEntity = this.viewer.entities.getById(id);
// viewer.flyTo messes up the camera pitch
this.viewer.camera.flyTo({destination: this.viewer.selectedEntity.position.getValue(Cesium.JulianDate.now())});
}
}
The entity is selected, the camera flys to it just fine, and the Cesium infobox displays the entity name in the title just fine, but doesn't display the description. If I select the entity by clicking on it, the box displays the description just fine.
I can't find anything to force the InfoBox to redraw, or see anything else I need to set for the InfoBox to update. So what am I missing?
I tried setting this.viewer.infoBox.viewModel.description but that didn't help either.
Apparently this was caused by selecting the entity while the map container was set to display: none. I was able to fix this by delaying the execution until focus returned to the map.
Related
Im finding it hard to select the items from the combobox element. This combobox is something different. When i drag down the items, i could see the actual value of the item(i.e. aria-activedescendant="react-select-4--option-3"). After selecting the particular item, the value has got changed to "aria-activedescendant="react-select-4--value"". Plz suggest me the best solution to click the item. You have to specifically note this "aria-activedescendant="react-select-4--value"" in input section under html code.
Tried with below code. I was able to just click the combo box element but not the value. I used id="react-select-4--value" to click the combo box, It errors as "element not clickable at point". Technically the system understands something wrong.
public void ScrollAndClickOnElement(String loacator,String LocatorValue)
{
WebElement element = null;
if(loacator.equalsIgnoreCase("cssSelector"))
element = driver.findElement(By.cssSelector(LocatorValue));
else if(loacator.equalsIgnoreCase("xpath"))
element = driver.findElement(By.xpath(LocatorValue));
else if(loacator.equalsIgnoreCase("id"))
element = driver.findElement(By.id(LocatorValue));
((JavascriptExecutor)driver).executeScript("arguments[0].scrollIntoView(true);",element);
element.click();
}
public void WaitAndClickElement(String locatorType,String locatorVaue)
{
WebDriverWait wait = new WebDriverWait(driver,50);
if(locatorType.equalsIgnoreCase("cssSelector"))
wait.until(ExpectedConditions.elementToBeClickable(By.cssSelector(locatorVaue))).click();
else if(locatorType.equalsIgnoreCase("xpath"))
wait.until(ExpectedConditions.elementToBeClickable(By.xpath(locatorVaue))).click();
else if(locatorType.equalsIgnoreCase("id"))
wait.until(ExpectedConditions.elementToBeClickable(By.id(locatorVaue))).click();
}
ScrollAndClickOnElement("id", AssessmentPageData.ElevatorManufacturer);
WaitAndClickElement("cssSelector",AssessmentPageData.Appollo);
Referred to this link and used 'select' method, but it errors as "Element should have been "select" but was "span""
Found the below solution finally,
public void SelectBootStrap(String textval){
WebElement listElement = driver.findElement(By.xpath("//div[#class='Select-menu-outer']//div[text()='"+textval+"']"));
((JavascriptExecutor)driver).executeScript("arguments[0].scrollIntoView(true);",listElement);
listElement.click();
}
My app features a map, on which the user's avatar is displayed in the center and where markers including photo should be added when the user moves the map.
On the simulator, the markers are added but the images disappear as soon as I release the pointer then only the placeholders remain (this is what I call flickering). On the device, nothing is shown apart from the user's avatar.
As you can see the image does not remain on the map, only the placeholder does. The user icon is southern on the map but it is shown.
Please note: I am not receiving 404 errors and there is only one listener on the map (see below):
Here is how I trigger the map update:
googleMap.addMapListener((source, zoom, center) -> {
showReportsOnMap(googleMap, center, theme, currentForm, selectCategoryButton.getWidth());
});
And here is how I add the reports the map:
public void showReportsOnMap(
MapContainer currentMap,
Coord center,
Resources theme,
Form f,
int reportImageWidth) {
/**
* Get the map borders (CAUTION : it can be NaN)
*/
Coord NE = currentMap.getCoordAtPosition(currentMap.getAbsoluteX() + currentMap.getWidth(), currentMap.getAbsoluteY());
Coord SW = currentMap.getCoordAtPosition(currentMap.getAbsoluteX(), currentMap.getAbsoluteY() + currentMap.getHeight());
boolean bordersKnownAndValid = false;
// Checks that the borders does not contain NaN as longitudes and latitudes
if (!Double.isNaN(NE.getLatitude())
&& !Double.isNaN(NE.getLongitude())
&& !Double.isNaN(SW.getLatitude())
&& !Double.isNaN(SW.getLongitude())) {
// The borders can be used
bordersKnownAndValid = true;
}
if (bordersKnownAndValid) {
ArrayList<Report> localReports = (ArrayList<Report>) (Report.getReportsWithinBoundingBounds(NE, SW, selectedCategoryIdToBeShownOnMap).get(1));
// Revalidate only if we have something new to show
if (localReports.size() > 0) {
currentMap.clearMapLayers();
currentMap.addMarker(ParametresGeneraux.getCurrentUser().getUserIcon(),
new Coord(ParametresGeneraux.getCurrentUser().getCurrentUserLocation().getLatitude(),
ParametresGeneraux.getCurrentUser().getCurrentUserLocation().getLongitude()),
ParametresGeneraux.getCurrentUser().getUserNickname(), "", null);
Image tempPlaceholder = Image.createImage(
reportImageWidth,
reportImageWidth,
ParametresGeneraux.accentColor);
Graphics gr = tempPlaceholder.getGraphics();
gr.setAntiAliased(true);
gr.setColor(ParametresGeneraux.accentColor);
gr.fillArc(0, 0, reportImageWidth, reportImageWidth, 0, 360);
EncodedImage roundPlaceholder = EncodedImage.createFromImage(tempPlaceholder, true);
// Add the report on the map
for (Report report : localReports) {
String photoFilenameInStorage = Report.getFilename(report.getPhotoPath())
+ ParametresGeneraux.SUFFIX_ON_MAP_IMAGE;
EncodedImage reportIcon = EncodedImage.createFromImage(URLImage.createToStorage(roundPlaceholder,
photoFilenameInStorage,
report.getPhotoPath(),
ParametresGeneraux.RESIZE_SCALE_WITH_ROUND_MASK
),
false); // we want transparency png otherwise it shows black edges
currentMap.addMarker(reportIcon,
new Coord(report.getLocation().getLatitude(), report.getLocation().getLongitude()
),
report.getCategory().getName(), "",
(evt) -> {
// Opens the detail form about this report
new ReportDetailsForm(theme, report, f.getClass()).show();
});
}
currentMap.setCameraPosition(new Coord(center.getLatitude(), center.getLongitude()));
currentMap.zoom(new Coord(center.getLatitude(),
center.getLongitude()),
ParametresGeneraux.getUserZoomLevelOnMap());
currentMap.animate();
//f.forceRevalidate();
}
}
}
So I guess that the flickering in the simulator is a kind of slow motion of what happens on the device although the device does not show the placeholder.
What should I do to make the markers appear with an image?
EDIT March 8th 2017
On simulator, if I show a Dialog just before adding the marker to the map with this code :
Dialog.show("Photo", report.getAddress(), Dialog.TYPE_INFO, reportIcon, "OK", null);
The icon is well displayed in the Dialog (see screen capture below)
and then the image appears on the map without flickering any more as depicted below :
However on an actual Android device even the Dialog does not appear.
Finally I don't know why the Dialog makes then the markers behave as expected on the simulator but not on the device, so I am a bit at lost!
Any help would be precious.
The problem is that URLImage may not have finished downloading by the time you added it as a marker. If you call EncodedImage.createFromImage(urlImage) before URLImage has finished downloading, then you'll be creating an encoded image of the urlImage's placeholder.
the com.codename1.io.Util class includes quite a few methods for downloading images from URLs. Some are blocking, and some use a callback. Either way you just need to ensure that the image is actually downloaded before adding it to a map.
NOTE: Normally this wouldn't be an issue with URLImage - e.g. if you were adding it to a Button or a Label. It is only a problem here because the MapContainer is native, and it actually needs to pass the image data to the native layer at the time that setMarker() is called.
In a MvvmCross app, I have a page with the classic chat behavior (WhatsApp like): this page shows the history of messages exchanged between two users with the last message at the bottom of the list.
I've successfully implemented the view in Windows Phone 8.1, but I'm struggling with a problem in Android.
I'll give you a short introduction and description of my problem and next I'll go through technical details.
INTRODUCTION
Actually, my need is to apply different style to messages sent by different users: tipically align left messages sent from other user and align right messages sent by me (I do this through the weight property); I need to apply a different drawable background and set different gravity property also.
I use custom binding because, AFAIK, those properties cannot be binded with classic binding: local:MvxBind="Gravity MyPropery" doesn't work because there is no Gravity property.
So, I have of course two axml files:
the first one contains the Mvx.MvxListView
the second one contains the item template for MvxListView
And I've created three different custombinding (for Background, Gravity and Weight) following these guides:
http://slodge.blogspot.it/2013/06/n28-custom-bindings-n1-days-of-mvvmcross.html
In MvvmCross how do I do custom bind properties
THE PROBLEM
I want that, when a user opens the chat View, the list widget shows automatically the last message. To accomplish this, I scroll programmatically the list to the last message and this seems to be the problem.
If I don't scroll programmatically, when I open the page and scroll manually to the end of the page, all custom bindings are applied successfully: I can see messages aligned right and left, with correct background and weight applied.
If I force the scroll programmatically, when I open the page I see a strange behavior: all the messages are present (classic binding, such as Text property, have been successfully applied), but custom bindings are missing. All the messages have the same background and are all left aligned.
BUT, if I scroll manually up and down, the custom binding are processed and the messages are displayed with right style.
DEBUG ANALYSIS
To debug the behaviour I've put a simple static counter in a custom binding procedure to track every time the function is processed.
public class LinearLayoutWeightTargetBinding : MvxAndroidTargetBinding
{
public static int debugCounter = 0;
public LinearLayoutWeightTargetBinding(object target) : base(target)
{
}
protected LinearLayout MyTarget
{
get { return (LinearLayout)Target; }
}
public override Type TargetType { get { return typeof(bool); } }
protected override void SetValueImpl(object target, object value)
{
var ll = (LinearLayout)target;
var itsMe = (bool)value;
var weight = itsMe ? (float)20.0 : (float)5.0;
var layoutParams = new LinearLayout.LayoutParams(0, ViewGroup.LayoutParams.WrapContent, weight);
ll.LayoutParameters = layoutParams;
Log.Debug("MeeCHAT", string.Format("LinearLayoutWeightTargetBinding::SetValueImpl::ItsMe:{0} - counter:{1}", itsMe, ++debugCounter));
}
public override MvxBindingMode DefaultMode { get {return MvxBindingMode.TwoWay;} }
}
By this way I saw that actually by scrolling up and down the custom bindings are applied (debugCounter increases correctly).
BUT when I apply the programmatically scroll, only the first 10 items are processed by the custom bindings and this seems the reason why I see the messages without the right style. Because I have a long list, only the first 10 items are processed but they are not visible (they are out of the visible area) and the visibile items have not been processed.
TECHNICAL DETAILS
Here are some details related to technical aspects of my app. I try to give you all important aspects.
ORGANIZATION OF THE VIEWS
By following the approach described by Greg Shackles in this article http://gregshackles.com/presenters-in-mvvmcross-navigating-android-with-fragments/ I have just one general Activity for the app and one Fragment for each View; then through a Presenter is possible to activate the right ViewModel and manage the stack of the navigation.
The Fragment for the View where I have the Mvx.MvxListView widget is
public class MyMatchersChatView : MvxFragment
{
public override View OnCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
{
var ignore = base.OnCreateView(inflater, container, savedInstanceState);
var result = this.BindingInflate(Resource.Layout.MyMatchersChatView, null);
var headerFrame = result.FindViewById<FrameLayout>(Resource.Id.headerFrameMyMatchersChatView);
var headerWidget = new HeaderWidget() { ViewModel = this.ViewModel };
var tran = ChildFragmentManager.BeginTransaction();
tran.Add(headerFrame.Id, headerWidget, "headerMyMatchersChat");
tran.Commit();
var listView = result.FindViewById<MvxListView>(Resource.Id.messagesList);
listView.SetSelection(listView.Adapter.Count - 1); // Scroll to the end of the list
return result;
}
}
The statement listView.SetSelection(listView.Adapter.Count - 1); force the list to scroll to the end.
Last two things: how the custom bindings are registered and how are applied in axml file.
REGISTRATION OF CUSTOM BINDING
In Setup.cs I have:
protected override void FillTargetFactories(IMvxTargetBindingFactoryRegistry registry)
{
base.FillTargetFactories(registry);
registry.RegisterFactory(new MvxCustomBindingFactory<LinearLayout>("CustomWeight",
(b) => new LinearLayoutWeightTargetBinding(b)));
}
APPLYING OF CUSTOM BINDING
In my axml I have:
<LinearLayout
android:orientation="horizontal"
android:layout_width="0dp"
android:layout_height="wrap_content"
local:MvxBind="CustomWeight IsCurrentUser">
LISTVIEW AND VIEWMODEL
Here is the code of ListView
<Mvx.MvxListView
android:id="#+id/messagesList"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
local:MvxBind="ItemsSource MyMessages"
local:MvxItemTemplate="#layout/mymatcherschatview_itemtemplate" />
and the property in ViewModel
private IEnumerable<MyMatchMessageModel> _myMessages;
public IEnumerable<MyMatchMessageModel> MyMessages
{
get { return _myMessages; }
set
{
_myMessages = value;
RaisePropertyChanged(() => MyMessages);
}
}
ENVIRONMENT
Finally, here is my environment:
Visual Studio 2015
MvvmCross 3.5.1
Core targets: .NET Framework 4.5, Windows 8, ASP.NET Core 5.0, Windows Phone 8.1, Xamarin.Android, Xamarin.iOS, Xamarin.iOS (Classic)
The Android app target is API Level 19 (Xamarin.Android v4.4 Support)
Xamarin 3.11.1450.0
Xamarin.Android 5.1.6.7
Someone can help me to understand if I'm doing something wrong?
Thanks for reading and for any help!
>>EDIT 1<<
I've changed my layout by adding stackFromBottom and transcriptMode properties and by removing the scrolling to below programmatically in Fragment obtaining an auto-scroll behavior, but the problem still remains: to see messages with correct style I have to manually scroll up and down (to activate the custom bindings)
Here is the new axml...
<Mvx.MvxListView
android:id="#+id/messagesList"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:stackFromBottom="true"
android:transcriptMode="alwaysScroll"
local:MvxBind="ItemsSource MyMessages"
local:MvxItemTemplate="#layout/mymatcherschatview_itemtemplate" />
...and the new code in Fragment
public override View OnCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
{
var ignore = base.OnCreateView(inflater, container, savedInstanceState);
var result = this.BindingInflate(Resource.Layout.MyMatchersChatView, null);
var headerFrame = result.FindViewById<FrameLayout>(Resource.Id.headerFrameMyMatchersChatView);
var headerWidget = new HeaderWidget() { ViewModel = this.ViewModel };
var tran = ChildFragmentManager.BeginTransaction();
tran.Add(headerFrame.Id, headerWidget, "headerMyMatchersChat");
tran.Commit();
return result;
}
First thing I would do is to make sure that your custom binding is always getting called.
Set a breakpoint on the SetValueImpl() method and check it´s getting called on those problematic items. If that happens, then the issue relies on the view no getting updated for any reason and you should work on that. If it doesn´t break, you will know for sure it´s a custom binding problem (possibly a bug) in MvxAdapter.
If you find out it´s the second one. I would suggest getting rid of your custom binding and creating your own ChatListAdapter : MvxAdapter as follows:
public class CoolChatListAdapter : MvxAdapter
{
public CoolChatListAdapter(Context context, IMvxAndroidBindingContext bindingContext) : base(context, bindingContext)
{
}
protected override View GetBindableView(View convertView, object source, int templateId)
{
var item = source as MyMatchMessageModel;
var weight = item.IsCurrentUser ? (float) 20.0 : (float) 5.0;
var ll = (LinearLayout) convertView;
var layoutParams = new LinearLayout.LayoutParams(0, ViewGroup.LayoutParams.WrapContent, weight);
ll.LayoutParameters = layoutParams;
return base.GetBindableView(convertView, source, templateId);
}
}
Then, in your android view:
var adapter = new ChatListAdapter(this, (IMvxAndroidBindingContext)BindingContext);
_chatList = FindViewById<MvxListView>(Resource.Id.chat_list_view);
_chatList.Adapter = adapter;
I have a Drupal ExtendedGmap View. View results show as markers on the map. Marker type is determined by a custom field (NOT a field on the content type, but rather a PHP field calculated from the View) so the first view result marker is set to 'orange' and all other row markers are set to 'green'. The problem I have is that I want my first (orange) marker to show above the others. I have found a way to change the first marker z-index value in THEME_preprocess_gmap_views_view_gmapextended function:
$vars['markers'][0]['opts']['zindex'] = '9999';
But this is not reflected on the map and the first marker is still buried (in fact the first marker ends up somewhere in the middle of the stack).
How do I get my first View row marker on top?
I tried the Javascript mentioned on this page but don't really understand it and it doesn't work for me.
Drupal.gmap.addHandler('gmap',
function (elem)
{
var obj = this;
obj.bind('preparemarker',
function (marker)
{
marker.opts.zIndexProcess =
function (marker,b)
{
return this.zindex ? this.zindex : -99999;
};
}
);
});
I am using Drupal 7 and Gmap 7.x-2.9
Found the problem. Googlemaps API V3 uses zIndex (capital 'I') instead of zindex. Changed that and works as expected - markers stack correctly.
Example code:
$vars['markers'][0]['opts']['zIndex'] = '9999';
I have FlipView (it's virtualized with Mode="Standard") with ScrollViewer, Image (inside ScrollViewer as DataTemplate). I set ImageOpened event handler on Image with such code:
private void Image_ImageOpened(object sender, RoutedEventArgs e)
{
var image = sender as Image;
double width = image.ActualWidth;
double height = image.ActualHeight;
var sv = image.Parent as ScrollViewer;
if (sv != null && width != 0 && height != 0)
{
var properZoom = ZoomUtilities.CalculateZoomFactor(width, height);
sv.MinZoomFactor = 0.3f;
sv.ChangeView(null, null, properZoom);
sv.MinZoomFactor = properZoom;
}
}
properZoom is always correct value. One out of the thousand times when I change item (swipe) or load page with this FlipView application crash with breakpoint on sv.ChangeView(..) and AccessViolationException exception is thrown. Does anyone know what could be the reason of such behaviour? Are there any restriction when I can call ChangeView method?
EDIT:
Forgot to mention - there is also DoubleTapped event handler on ScrollViewer which also calls ChangeView
I had the same AccessViolationException using .ChangeView(..). I noticed the exception was thrown when the ScrollViewer I wanted to manipulate had focus. For example when a user was dragging through the list or controlling the scrollbar with his mouse.
Disabling animations solved my problems. If you want to keep the animations you should look for a way to remove focus on the controls before changing the view. I guess the animated ChangeView tries to change a property that is locked because of the user input.
Hope this helps.
I had the same problem.
Solution to me: call inverse, from image object to parent got error.
Call normal path: objectscroolviewer.changeview, works no error.
Then:
var sv = image.Parent as ScrollViewer;
change to
var sv = ScrollViewerObject;
Get object to variable externally, not by internal reference of parent, and ignores sender parameter.