Search Results

No. ba.raiseEvent is synchronously (you can see that it returns a value).
link: You should use ba.raiseEvent. CallSubNew2 eventually calls it as well. 1. This means that your code is raising synchronous events. Make sure to mark
link: One last tip: It is safer to assume that ba.raiseEvent (or raiseEvent2) will return null in some cases. boolean b = ba.RaiseEvent(...) 'ba. Will thro
link: Perhaps it is very obvious, but I am a bit stuck thinking about this and any help will be welcome... I am developing a library with several classes.

Not as far as I can see from the code. ba.raiseEvent returns the value, as an Object, returned from the event sub.
link: i find @Erel's comments regarding raiseEventfromUI a little unclear, https://www.b4x.-ba-raiseeventfromui.18047/#content but he does state clearly th
link: I don't understand your comment about the 'SDK thread'. Is it running on its own thread or on the main thread? ba.raiseEvent should be a blocking cal
link: @Override public void onSetKeyboard() { ba.raiseEventFromUI(this, "ynexu_onsetkeyboard", null); // ba.raiseEvent(this, "ynexu_onse

ba.raiseEvent(null, eventName + "_syncproc", handle, channel, data, user)

import java.util.Comparator; import anywheresoftware.b4a.BA; import anywheresoftware.b4a.BA.CheckForReinitialize; import anywheresoftware.b4a.BA.Events; import anywheresoftware.b4a.BA.Hide; import anywheresoftware.b4a.BA.ShortName; @ShortName("ComparatorObject") @Events(values={"Compare(Object1 As
link: You shouldn't use reflection to access B4J methods. It will fail in some cases. If the callback is called from a different thread then you need to us
link: ba.raiseEvent(this, eventName + "_deleteall", new Object {l1}); } @Hide public synchronized void store(Object key, Object value) {
link: ba.raiseEventFromUI will work in a non-ui app if StartMessageLoop was called.

Yes. ba.raiseEvent returns the value returned from the event sub. You should however make sure that the value is not null before you cast it to an int. It will be null if the event cannot be raised for some reason.
link: So the final Java code would probably look something like this: series1.setValueDependentColor(new ValueDependentColor<DataPoint>() {
link: Hi @Erel thanks for your help, i was able to make it work just as you suggested, however because the listener gets called every time the user zooms in

Use ba.raiseEvent or ba.raiseEventFromUI. All other suggestions are wrong.

You can call ba.raiseEventFromDifferentThread. However it doesn't return any value. Example of using CountDownLatch to return a result: https://www.b4x.-or-raiseeventfromdifferentthread.83574/#post-529901
link: This line will fail with NPE if the event could not be raised for some reason: return (float) ba.raiseEvent(this, s, x); My guess is that this list

When designing java library, is it possible to pass a view as parameter for example public void onClick(View v) { ba.raiseEvent(ba, eventName + "_click",value1,v); } I have tried but i get an error : java.lang.Exception: Sub btnl_click signature does not match expected signature. Ple
link: B4A code: Sub btnl_click(tt As String, v As View) Msgbox(v.Tag,bb) end sub It only works with string values. If i pass a view, it gives an er
link: You haven't posted the B4A code.
link: Two options: Sub btnl_click(tt As String, o As Object) Dim v As View = o Better: ba.raiseEventFromUI(ba, eventName + "_click",value1,AbsObjectWra

ba.raiseEvent is not asynchronous and you can use it to return a value from B4A code. However you cannot use it if the event is raised from a different thread.
link: Hello, having this java code: / Record callback @Events(values={"RecordProc(int handle, ByteBuffer buffer, int length, Object user)"}) @ShortN
link: Note that it is safer to write it this way: Boolean res = ba.raiseEvent(...); //Boolean instead of boolean return res != null && res == true; ba.rai
link: No. bb.array() will return the base array (if there is one).

Great minds ...! :) Already changed it to ba.raiseEvent(this, eventName + "_ondraw", cw); Which works with Sub TouchImageView1_OnDraw(can As Canvas) Dim s As ScaleImageView = Sender ... End Sub
link: Even more :) You wanted to use the Sender keyword so I wrote an answer where the canvas is set to be the sender object. The best answer is: ba.rais
link: You were very close Erel. I just had to change ba.raiseEvent(cw, eventName + "_ondraw"); to ba.raiseEvent(null, eventName + "_ondraw", cw);
link: Something like: public class ScaleImageViewWrapper extends ViewWrapper<SubsamplingScaleImageView> { private string draweventname; private BA s

Powered by ColBERT