Can anyone explain with a simple example on how to add the data dynamically to the chart which is already drawn. I tried with the details in the github link to add the data, but couldn't do so. A very short example or link is also fine. Thanks
You can download the project here https://github.com/PhilJay/MPAndroidChart/archive/master.zip
Open the project, and in MPChartExample, you have the file DynamicalAddingActivity.java.
You need to create the chart:
Add dataSet (your line(s)) with the values (please view the example in
addDataSet() method in MPChartExample project).
After you can do a CountTimerDown that add a new Entry, for the
dataset.
/** each 5 seconds **/
new CountDownTimer(5000, 1000) {
public void onTick(long millisUntilFinished) {
}
public void onFinish() {
double randomValue = 19.0 + (Math.random() * (21.0 - 19.0));
int indexOfMyLine = 0;
Entry newEntry = new Entry((float) randomValue, indexOfMyLine);
}
}.start();
Related
I'm a bit lost trying to attach a pdf with populated values from an opportunity record
Here is the code:
Trigger:
trigger OpportunityTrigger on Opportunity (after insert)
if(trigger.isAfter && trigger.isUpdate) {
opportunityTriggerHelper.attachFileToOpportunityRecord(trigger.new);
}
Helper Class:
private void attachFileToOpportunityRecord(List<Opportunity> lstOpp) {
List<Id> oppListIdsForAttach = new List<Id>();
for(Opportunity opp : lstOpp) {
oppListIdsForAttach .add(opp.Id);
}
attachFileToOpportunities(oppListIdsForAttach);
}
#future(callout=true)
private static void attachFileToOppotunities(List<Id> OpportunityIds) {
List<Attachment> attachList = new List<Attachment>();
for(Id oppId : opportunityIds) {
OpportunityPdfController file = new OpportunityPdfController();
file.getData(oppId);
PageReference pdfPage = Page.PdfAttachmentForOpp;
blob pdfBody;
pdfBody = pdfPage.getContent();
Attachment attach = new Attachment();
attach.Body = pdfBody;
attach.Name = 'Pdf file';
attach.IsPrivate = false;
attach.ParenId = oppId;
attachList.add(attach);
}
insert attachList;
}
VF Page:
<apex:page controller="OpportunityPdfController" renderAs="pdf">
<apex:repeat value="{!pricingDetails}" var="pd">
<apex:outputText>{!pd.basePrice}</apex:outputText>
</apex:repeat>
</apex:page>
VF Page Controller:
public with sharing class OpportunityPdfController {
public List<PricingDetailWrapper> pricingDetails {get;set;}
public void getData(Id opportunityId) {
List<Pricing_Detail__c> pdList = [
SELECT basePrice
FROM Pricing_Detail__c
WHERE OpportunityId =: opportunityId
];
for(Pricing_Detail__c pd : pdList) {
PricingDetailWrapper pdw = new PricingDetailWrapper();
pdw.basePrice = pd.basePrice;
pricingDetails.add(pdw);
}
}
public class PricingDetailWrapper {
public String basePrice {get;set;}
}
}
The result is whenever I update an opportunity it attaches the corresponding pdf file but it is blank and if I add for example the following to vf page body: "<h1> hello World!</h1>" this works and shows as expected, but this is not happening to what I required above.
You didn't really pass the opportunity id to the VF page. And I doubt this actually works at all? If you manually access the VF page as /apex/PdfAttachmentForOpp?id=006... does it render the content ok? I'm assuming it doesn't.
Fixing the page
You didn't specify constructor so SF generates one for you, fine. I think you need to add something like
public OpportunityPdfController(){
if(ApexPages.currentPage() != null){
Id oppId = ApexPages.currentPage().getParameters().get('id');
System.debug(oppId);
getData(oppId);
}
}
Add this, try to access the page passing valid opp id and see if it renders ok, if right stuff shows in debug log. /apex/PdfAttachmentForOpp?id=006...
(VF page constructors are bigger topic, this might be simpler with standardController + extension class)
Fixing the callout
VF page (especially accessed as callout) will not share memory with the OpportunityPdfController controller you've created in the code. New object of this class will be created to support the page and your file will be ignored. You might try to make-do with some static variable holding current opportunity's id but it feels bit yucky.
In normal execute anonymous try if this returns correct pdf:
PageReference pdfPage = Page.PdfAttachmentForOpp;
pdfPage.getParameters().put('id', '006...');
Blob pdfBody = pdfPage.getContent();
System.debug(pdfBody.toString());
If it works - use similar trick in the actual code, pass the id as url parameter.
I am using arcgis library 100.0.0 in android for displaying maps and information inside map.
I am using the following code to populate a ServiceFeaturetable using URL provided by arcGis. I am able to load the feature layer successfully into the mapview. I have written code that listens to the click on the symbol on the map, so that I can get some information about the specific feature on the map. I am able to get the specific feature OnClick.
Upon investigating the GetAttributes() result of the specific feature, I realize that it is not having all the fields. After investigating on internet, I found that the FeatureTable.QueryFeaturesAsync could be used to get all the fields of the feature. Even though I have written the code to get all the fields, I do not know how I link this result with the feature layer, so that the feature has all the fields that I require. Here is the code
final ServiceFeatureTable serviceFeatureTable = new ServiceFeatureTable("some URL");
ListenableFuture<FeatureQueryResult> queryresult = serviceFeatureTable.queryFeaturesAsync(null, ServiceFeatureTable.QueryFeatureFields.LOAD_ALL);
// create the feature layer using the service feature table
final FeatureLayer featureLayer = new FeatureLayer(serviceFeatureTable);
featureLayer.setSelectionColor(Color.YELLOW);
featureLayer.setSelectionWidth(10);
// add the layer to the map
mapView.getMap().getOperationalLayers().add(featureLayer);
// set an on touch listener to listen for click events
mapView.setOnTouchListener(new DefaultMapViewOnTouchListener(getContext(), mapView) {
#Override
public boolean onSingleTapConfirmed(MotionEvent e) {
// get the point that was clicked and convert it to a point in map coordinates
Point clickPoint = mMapView.screenToLocation(new android.graphics.Point(Math.round(e.getX()), Math.round(e.getY())));
int tolerance = 10;
double mapTolerance = tolerance * mMapView.getUnitsPerDensityIndependentPixel();
// create objects required to do a selection with a query
Envelope envelope = new Envelope(clickPoint.getX() - mapTolerance, clickPoint.getY() - mapTolerance, clickPoint.getX() + mapTolerance, clickPoint.getY() + mapTolerance, mapView.getMap().getSpatialReference());
QueryParameters query = new QueryParameters();
query.setGeometry(envelope);
// call select features
final ListenableFuture<FeatureQueryResult> future = featureLayer.selectFeaturesAsync(query, FeatureLayer.SelectionMode.NEW);
// add done loading listener to fire when the selection returns
future.addDoneListener(new Runnable() {
#Override
public void run() {
try {
//call get on the future to get the result
FeatureQueryResult result = future.get();
// create an Iterator
Iterator<Feature> iterator = result.iterator();
Feature feature;
// cycle through selections
int counter = 0;
while (iterator.hasNext()){
feature = iterator.next();
counter++;
String name = feature.getAttributes().get(Constants.FIELD_NAME).toString();
Log.d(getResources().getString(R.string.app_name), "Selection #: " + counter + " Table name: " + feature.getFeatureTable().getTableName());
}
//Toast.makeText(getApplicationContext(), counter + " features selected", Toast.LENGTH_SHORT).show();
} catch (Exception e) {
Log.e(getResources().getString(R.string.app_name), "Select feature failed: " + e.getMessage());
}
}
});
return super.onSingleTapConfirmed(e);
}
});
Try replacing your code
from
final ListenableFuture<FeatureQueryResult> future = featureLayer.selectFeaturesAsync(query, FeatureLayer.SelectionMode.NEW);
to
final ListenableFuture<FeatureQueryResult> future = serviceFeatureTable.queryFeaturesAsync(query, ServiceFeatureTable.QueryFeatureFields.LOAD_ALL);
It works for me!
Thank you for reading my question and apologies for the noobness
I am writing my first JavaFX application in which I have an array of hyperlinks which have latitude longitude (e.g. "42N 7E") in the text value of the hyperlink which is being updated every second from another Thread and updates the hyperlink text in the Main Thread. (This works fine)
public static void setPosLatLong(String posLatLong, int SID) {
Main.posLatLong[SID].setText(posLatLongValue);
}
I am trying to use the value in the hyperlink text when clicking on the hyperlink to dynamically change the destination URL with the latest latlong values... but I get the error 'local variables referenced from a lambda expression must be final or effectively final'
int SID = 'id of the hyperlink corresponding to a machine'
posLatLong[SID] = new Hyperlink();
posLatLong[SID].setOnAction((ActionEvent event) -> {
getHostServices().showDocument("http://maps.google.com/maps?z=17&q=" + posLatLong[SID].getText());
});
I have tried all kinds of ways to get around this but I am shamefully stuck. If anyone could point me in the right direction so that the last updated value in the hyperlink array is passed as a parameter when opening the browser it would be greatly appreciated.
I think I managed to find a solution myself so I'll post it in case it could be useful to someone
posLatLong[i].setOnAction(new EventHandler<ActionEvent>() {
#Override
public void handle(ActionEvent event) {
String eventLatLong = "";
Object source = event.getSource();
if (source instanceof Hyperlink) {
Hyperlink link = (Hyperlink) source;
eventLatLong = link.getText();
}
getHostServices().showDocument("http://maps.google.com/maps?z=17&q=" + eventLatLong );
}
});
Tada !
I'm trying to implement my own content assist and I can't add a popup with additional information for every proposal I get in the content assist popup.
I tried using the following implementation, but it didn't worked:
public ICompletionProposal[] computeCompletionProposals(ITextViewer viewer, int documentOffset) {
ICompletionProposal[] result= new ICompletionProposal[fgProposals.length];
for (int i= 0; i < fgProposals.length; i++) {
result[i]= new CompletionProposal(fgProposals[i], documentOffset, 0, fgProposals[i].length(), null, fgProposals[i], info, MessageFormat.format(JavaEditorMessages.getString("CompletionProcessor.Proposal.hoverinfo.pattern"), new Object[] { fgProposals[i]})); //$NON-NLS-1$
}
return result;
}
I also tried using Context Information, but I don't think it is what I'm looking for and also I couldn't display the Context Information and the Content Assist at the same time.
If you are using the default ContentAssistant you need to call setInformationControlCreator to set the code used to create this additional information popup.
The usual way to do this in the SourceViewerConfiguration is:
public IContentAssistant getContentAssistant(final ISourceViewer sourceViewer)
{
final ContentAssistant assistant = new ContentAssistant();
.. other setup ...
assistant.setInformationControlCreator(getInformationControlCreator(sourceViewer));
return assistant;
}
I am trying to add an AbstractToolBar to a DefaultDataTable.
The toolbar has a button on click of which the selected rows should get deleted.
My table has a checkbox column, to select the rows.
AbstractToolBar implementation looks like this -
public class GridToolBar extends AbstractToolbar {
/**
*
*/
private static final long serialVersionUID = -2126515338632353253L;
Button btnDelete;
List<Contact> selected;
public GridToolBar(final DataTable<?> table) {
super(table);
// TODO Auto-generated constructor stub
btnDelete = new Button("delete",new Model("Delete"));
btnDelete.setOutputMarkupId(true);
btnDelete.add(new AjaxEventBehavior("onclick") {
private static final long serialVersionUID = 6720512493017210281L;
#Override
protected void onEvent(AjaxRequestTarget target) {
System.out.println(selected);
((UserProvider)table.getDataProvider()).remove(selected);
target.add(table);
}
});
add(btnDelete);
}
public void setSelected(List inList){
selected = inList;
}
}
The toolbar has been added to table as follows -
GridToolBar tb = new GridToolBar(table);
tb.setOutputMarkupId(true);
table.addTopToolbar(tb);
The code works fine, except on click of delete button it adds an additional delete button below the table. On inspecting it with firebug, the ids of both the buttons match exactly. On sorting the table though, the extra button is removed from the view.
Could someone help me how can I avoid creation of extra button on every click?
Why is it being created in the first place?
Any help is appreciated.
Thanks,
Sonam
You add the button directly to the table. This is incorrect, as you cannot have a button in a table. You need a <td> element. You can create one using a WebMarkupContainer. See also the source of for example NoRecordsToolbar