Develop Reference

Crashlytics custom key not appearing in crash

I am trying to figure out how to link each and every crash with application user id. I got to know we can achieve this functionality with firebase customized key logs.
For POC purpose, I have added custom key after logged in completion and then I am crashing app on next screen. But Custom keys are not getting logged on console.
Here, how I am adding custom key :
FirebaseCrashlytics.getInstance().setCustomKey("userId", serverLoginResponse.getBody().getUserId());
And I am crashing application on next screen using divide by 0.
int i = 2;
int j = i / 0;
But keys are not gettging tagged to crash. Please see screenshots.
On Dashboard.
on Crash Details Screen :
Please let me know if I am doing anything wrong here.

You should enable the collection in your activity but preferable in the Main Application Class
FirebaseCrashlytics.getInstance().setCrashlyticsCollectionEnabled(true);
Follow this guide:
FirebaseCrashlytics

I noticed that key/values set using setCustomValue(_,_) didn't persist between app relaunches. I had to call the setCustomValue code everytime on app relaunch aka appDidFinishingWithOptions(_). See related solution and answer here: https://stackoverflow.com/a/68097562/4970749
Note that setCustomValue here affects Crashlytics dashboard which is the second screenshot you showed here, under "Crash Details Screen." It doesn't update Firebase Analytics keys/properties (first screenshot), thats a separate method (try: Analytics.setUserProperty(value, forName: name) for that first screenshot).

Firebase Analytics Event properties are not shown, but do appear in DebugView

I have added Firebase Analytics events to my android app, and when I tested it with DebugView, I could clearly see the events and all their properties.
However, after launching the app, I can only see the events themselves, and the properties are missing.
I'm using :
val props = mutableMapOf<String, Any>()
props["test key"] = "test value"
Firebase.analytics.logEvent("action_test", props.toBundle())
As stated above, it works perfectly fine when I test it using the DebugView in Firebase console.
But when I go to Events sections, and click on some event, and then go to add filter, I cannot see the event properties.
The only thing I see is in that page, some statistics like the total number of events, etc.

In Firebase under "Analytics" click on "Events". Then click on the specific event you want to see the parameters of.
In your example the event name is "action_test", the parameter name is "test_key", the parameter values are the values of the map.
Now click on "action_test" in Events. It will open a detailed view for the event. Some cards will have as the title the name of the parameter.
It will take some time before the events are shown. Can be up to a couple of hours.

Where do I view event parameters with Facebook Analytics App Events?

I'm using Facebook analytics in my Android app to log app events - I'm seeing the correct tracking of app events and am able to view them in my Facebook App Analytics dashboard.
However, I have no idea where parameters that I attach to each event are displayed. Some of them are automatically summed and shown - for instance, purchases or other values. For other, string-based parameters, however, I'm unable to figure out where I can view them.
As an example:
Say every time something goes wrong in my app, I log an event named "Error". I then pass the parameter named AppEventsConstants.EVENT_PARAM_DESCRIPTION a string description - so this might be "App Crashed" or "No Internet Connection" or something. Let's say one of each happens.
When I go to view my analytics, I will correctly see that there have been two "Error" events. But now I want to know whether these were instances of "App Crashed" or "No Internet Connection" - presumably that's what the point of the parameters is. How do I do this? I've googled and clicked everything I can think of, but haven't found a way to see the parameter breakdown of an event.

I can confirm that it is troublesome to find and the name has been changed to "Breakdowns"...
Activity -> Breakdowns
click "Create New" in upper right
give the report a NAME
select the top level event from the EVENT pop-up
select one or more parameters to report on from the 3 BREAKDOWN
pop-ups (note that your custom parameters appear at the bottom of
these menus)

Yep, its not simple to find that information. You will need to use Segments in Facebook Analytics for that. Go to Segments and try creating a new segment. Define Condition Type as "Events". Then select the Event then you want to include. After that, select the option of "Refine". This will show you "Select a Parameter". Here you can select the parameter that you want to see and its value. Save this segment, and use it in any chart you want.
Unfortunately, that is the best way I have found, though it is not as straightforward as it should be.

I tried using the ways based on the answers provided here. But the fact is, it is tedious or going round the bush.
The answer is simple, just send the values and parameters wrapped inside "contents".
It will be visible on your analytics dashboard the same as standard events do.
var name = "Dhinesh";
var platformName = "flutter";
//custom event - fb analytics
fbq('trackCustom', 'FreeTrialPlatform',
// begin parameter object data
{
contents: [{
name: name,
platform: platformName
}],
content_type: 'product'
}
// end parameter object data
);
View in fb analytics
For your case like this,
var errorName = "App crashed";
fbq('trackCustom', 'TrackError', {
contents: [{
Error: errorName
}],
});

Events not firing in Google Analytics via Google Tag Manager

I have been searching high and low for an answer on this and I am completly dumbfounded.
I am implementing simple click and page tracking in my Android app using GA, running this through GTM. All my "Screens" are visible in realtime in GA but I can't get "Events" to appear at all.
Well actually I can but the behaviour seems very bizarre. If I do not include a "Label" and a "Value" I can see the events appear. However if I add them (either as just a constant or a data layer variable) all events stop. I have confirmed the variables I want in "Label" and "Value" are coming through as I made a container with those values as "Category" and "Action" and could see them as expected in real time.
This leads me to think the app side implementation is perfectly fine but there is an issue with my tag in GTM. (Obviously not the Trigger as that too works when expected).
Ideally I would like to do something like this (the variables are data layer variables):
But this doesn't work. I see no Events.

The Event Value should be a number, not a string. Shuffle the fields, for example - Action - Click on: {{GTM - Click Target}}, Label - {{GTM - Click Value}}, and leave the value empty, this will fix your problem.

Make sure, you have correctly setted up Click listener.
Enable when defines when is listener available and where is applied to the all DOM elements.
Fire ON defines conditions, so in your case it could be {{event}} equals gtm.click or {{event}} equals gtm.linkClick .
This is the most common pitfall when setting listeners

Problems with Listpicker App Inventor

I'm a beginner at App Inventor and I don't know what I'm doing wrong with the listpicker.
I am trying to create and app to reproduce the music I have stored in my server but when i display the listpicker I can't click any of the options and also I can't go back to the first screen. Here I put my code:
Image 1
Image 2
I tried to remove the line that says call listpicker.open but it only made appear a totally black screen.
The result of the code I just posted is exactly what I spect a list with the name and the link of the 2 songs I already upload to my server but when I click them it didn't do anything.
Thanks for your help.

The Web component works asynchronously, which means, it takes a little bit, until the result is available. The result you will get in the Web.GotText event.
Therefore it does not make sense to call the updateListpicker procedure in the Listpicker.BeforePicking event, because the result still is not available and you get displayed an empty listpicker. The listpicker will be opened, before you have received the result!
Set the listpicker to visible=false and use a button.click event to call the updateListpicker procedure. Then as you already do it in the Web.GotText event, assign the received list to the listpicker and open it.