[JETPACK COMPOSE]: is there a way to restart whole app programmatically? - kotlin

I need a way to make my app close and opens again. Or just restart everything inside of it.
Since the issue with my app can be fixed by closing app and opening again (When creating user the loading function to firebase the collection inside user document does not load for some reason)

Below code can do it:
val context = LocalContext.current
val packageManager: PackageManager = context.packageManager
val intent: Intent = packageManager.getLaunchIntentForPackage(context.packageName)!!
val componentName: ComponentName = intent.component!!
val restartIntent: Intent = Intent.makeRestartActivityTask(componentName)
context.startActivity(restartIntent)
Runtime.getRuntime().exit(0)

So... you could write ways to "restart everything", but I am going to strongly suggest not doing that. When building an app, you will run into edge cases. You will hit some failure states that you can't recover from. That happens. But, solving these cases by just "restarting" doesn't actually address the issue and will probably result in wonky and undesirable UX.
I would instead suggest you post here some steps to reproduce and debugging results.
Under what circumstance/flow does this document stop loading?
When it does happen, can you capture the call to Firebase where it is trying to load the document?
If so, what does that call look like?
Is it looking for the document in the correct place?
Can you show an example of the call when it fails and also what the database hierarchy looks like?
Can you show us a snippet of code where this is failing?
Without more information, this sounds more like a race condition - you might be trying to find the document before it is actually created and not handling the error path for when the document is not found. However, we would need to do some debugging to verify.

Related

How to enable statusBarItem right away in vscode extensions API

I have some extensions code in extension.ts
const item = vscode.window.createStatusBarItem(
vscode.StatusBarAlignment.Right
);
item.command = "codevids-auth.pushToWebview";
item.text = "$(record) codevid";
item.show();
I can't figure out how to place the statusBatItem in automatically without having to fire the command. Is this possible since some plugins as soon as they are installed they show up in the statusbar. I would like to know how to do this.
Thanks for the help ahead of time. And please let me know if you need more details I am happy to explain further.
It sounds like you may not be using an activationEvent which would trigger your extension's activate function immediately after startup is finished. Try this:
"activationEvents": [ "onStartupFinished" ]
Then your code, which includes .show(), should be sufficient to show the StatusBarItem soon after vscode is reloaded or started. It is typical that installation of an extension is not enough to activate it, the user should get a badge on the Extension view that reload is required. If that is what you are trying to avoid, I don't think it is possible.

How can I refresh my composable when new data is being inserted?

My team and I have to make a license plate scanning app as a school project. With that, we have comments and pictures which can be added to cargo. Whenever the user scans a plate they also get the chance to change the checked info in case of a mistake. The problem is that whenever we delete data from the scanned plate it doesn't show on the screen that it has been deleted until we go to another screen. The same goes for the lazy column which we use for inserting new instances of comments and pictures. The data doesn't show on screen until we turn our screen or go back to another screen. private val pictureList = mutableListOf() is what we use for the pictures and for the text we use var countryCode by remember { mutableStateOf(CountryCodeText) }
var licenseNumber by remember { mutableStateOf(LicenseNumberText) }. pictureList is a global variable and the other ones are local variables which use global variables in the mutableStateOf. How can we make sure that the UI updates whenever the data changes? In advance I want to say thanks for the help! (Code is written in Kotlin and jetpack compose)
Just replace the mutableListOf() with a mutableStateListOf(...), and prefer to keep all the state logic confined to a ViewModel. The viewmodel should preferably be only one for the entire app, and the entire app should have only one activity.
The viewmodel should act as a single source of truth for the entire activity's UI state, while also handling all the updates to the UI efficiently.
The #Composables should only be incharge of displaying the state, and sending events to the viewmodel to update the state, for example, an onClick event may be sent up to the viewmodel by a button too trigger a state change in another part of the app.
Take this codelab to learn all about state in Compose (Well, not all, really, but good starter).
Also, changing screens destroys all the #Composables of the current screen, and so when you ce back there, all the #Composables are re-created, and the correct data is fetched. If you wish to trigger "recompositions" upon changing a variable, you must ensure that the concerned variable is a state-holder, i.e., initialized with one of the pre-built state initializers, like mutableStateOf(), or mutableStateMapOf, etc.
We usually have a mutableState*Of format for determining whether a pre-built state initializer is available. The most common ones are covered, obviously, but if not, you'll need to create a new type of initializer yourself, and if that is not something you know how to do, currently, you can just go about checking whether the type of data you wish to store is Immutable. If so, you can just wrap it in a mutableStateOf<DataType>() call, and it will trigger the recompositions. Know that this is not as efficient as pre-built initializers, but definitely gets the job done.
Also, I suggest you take the compose-pathway to get the basics down. It covers everything ranging from creating a simple UI using basic pre-built Layouts to creating a complex animation-driven application using custom Layouts.
So, definitely a lot to take it, but I hope you get there.
Happy composing,

When invoking js.exec in Geb/Spock, the exec method is flagged as 'null'

I am creating a suite of tests (using Geb/Spock) for a web site. In one of them, the element I want to access is on the top of the page, so, to make sure that is visible, I want to scroll to the top of the page.
The command I am using is:
browser.js.exec('window.scrollTo(0, 0);')
or variations of it like
js.exec('window.scrollTo(0, 0);')
or other alternative like:
js.exec('window.scrollBy(0, -250);')
None of them makes the page scroll up, and when executing I get the following error (it is the only error, no other feedback). The error message using the other options listed above is identical (other than the command itself):
Condition not satisfied:
browser.js.exec('window.scrollTo(0, 0);')
| | |
| | null
| geb.js.JavascriptInterface#4019094f
geb.Browser#3dcac33e
at UserCreatesCompany.Go to Home Page and click on the log to
GitHub button as user User1(UserCreatesCompany.groovy:170)
I can not interpret the message that 'exec' is null. What exactly it means?
To make things more interesting, at the end of this script I am running the following cleanup procedure
js.exec('window.scrollTo(0, document.body.scrollHeight);')
DeleteButton.click()
$("button",'data-automation-id':"button-modal-yes").click()
}
and that works well: the page scrolls down. So, does not seem a problem about some missing library.
Any suggestion of what I may be doing wrong?
The version of the different components I am using is:
groovyVersion = '2.5.4'
gebVersion = '2.3'
seleniumVersion = '3.141.59'
chromeDriverVersion = '2.45'
First of all, you should not need to ever manually scroll the page to make elements visible - Selenium WebDriver which is underpinning Geb will do that for you automatically as soon as you start interacting (clicking, setting value, etc) with content.
Secondly, the failure you are getting is a failed assertion coming from a statement in an automatically asserted (then: or expect:) Spock block. It feels to me that you don't understand a concept which is core to Spock and therefore you should read about it in the manual first. It should make the failure you're getting clearer.
Thanks for the answer. Clearly: I was not fully aware of the different constrains the different blocks impose on what is executable or not. The manual is pretty clear once you have stumbled!
I am intrigued by your first assertion pointing that Selenium WebDriver will move to the element as soon as I interact with it. That was my understanding but it was not working. I made sure the element in question had a unique identifier, but still, it was not able to found it if the element had to be found by scrolling up. On the other hand it worked smoothly when locating the element WebDriver scrolled the page down.
Thanks again for the explanation. I have learn something new today!

Controlling level and focus of windows other apps with CGPrivate functions

Question
How to use these private functions on other windows? It would be nice to have this knowledge back in the wild. I am specifically trying to get CGSOrderWindow and CGSSetWindowLevel to work.
I was trying in the direction of:
temporarily register as the dock and then register the dock as the dock again immediately afterwards
or
code injection into the Dock process per this comment:
Also, the author of the above project seems determined to make all core functionality available as a framework. It seems to be implemented as code injection into the Dock process.
Reason I know this is possible
I have been doing work on trying to setLevel on window of another app, and focus window of another app if focused. I am posting this again with the info I learned because from my searching online, I know this was done in the past, its just the knowledge is not publicly out there anymore. The sourceforge pages are no longer there. So I was wondering if you could help me make this information public again.
This is the topic I read that gave me this information - http://cocoadev.com/HowtoControlOtherAppsWindows
Here you see comments like:
You cannot control an another app's windows from a user-level process, unfortunately.
SlavaKarpenko
You can, Slava, you just need to register as the Dock. It might be possible to temporarily register as the dock and then register the dock as the dock again immediately afterwards, not sure. I think the call you'd be wanting to investigate as CoreDockRegisterDockOwner in HIServices.framework.
FinlayDobbie
You could also use APE or similar to do control the windows, or (as mentioned above) register as the Dock (look for the private APIs with Universal Connection in their name). Has anyone found a polite way of getting the Dock to give up its universal connection? The only way I can find is to force quit the Dock and grab the universal connection when it's not looking (which prevents the dock reloading).
SamTaylor
There's an open source project up on sourceforge.net that looks much more like the window managers I've used on Unix boxes than Space.app (or Space.dock): http://wsmanager.sourceforge.net/
SteveCook
Verifying things work
This is what I learned, from the sources at bottom of this post, we see all these functions work with CGWindowIds, so how do I get that, this is how:
Get all windows with CGWindowListCopyWindowInfo. Then access each element from that array with CFArrayGetValueAtIndex and then get the CGWindowId with objectForKey:, kCGWindowNumber, and then integerValue.
Now if I try to focus or set level of a window that is OWNED by the app running the code, it works fantastic. For instance:
MY_TARGET_CGWINDOW_ID = 179;
rez_CGError = CGSOrderWindow(_CGSDefaultConnection, MY_TARGET_CGWINDOW_ID, kCGSOrderAbove, 0);
Will focus it, rez_CGError is 0. Even if the window is minimized, it is unminimized, without animation, and shown.
Now however, if I try this on a window of a different app we get some errors:
MY_TARGET_CGWINDOW_ID_of_other_app = 40;
rez_CGError = CGSOrderWindow(_CGSDefaultConnection, MY_TARGET_CGWINDOW_ID_of_other_app, kCGSOrderAbove, 0);
This fails and rez_CGError is 1000, which I suspect means "cid (CGSConnection) used does not have permission to modify target window". The same happens if I first do [app activateWithOptions: (NSApplicationActivateIgnoringOtherApps | NSApplicationActivateAllWindows)] before making the call above.
So I first get the cid of that owning window like this:
var rez_CGError = CGSGetWindowOwner(_CGSDefaultConnection, MY_TARGET_CGWINDOW_ID_of_other_app, &ownerCid);
This works good and I get ownerCid is set to a value. Then I do the focus command with this new connection:
rez_CGError = CGSOrderWindow(ownerCid, MY_TARGET_CGWINDOW_ID_of_other_app, kCGSOrderAbove, 0);
However this gives rez_CGError of 268435459, which I suspect means "current app does not have permission to use this ConnectionId (cid)". (Same happens if I call activateWithOptions first.
My Sources for the Private Functions
Here is the sources for some private functions I found - https://code.google.com/p/undocumented-goodness/source/browse/trunk/CoreGraphics/CGSPrivate.h
This one source here contains a function that is not in the above link - CGSGetConnectionIDForPSN - i test it and it exists - from - https://github.com/mnutt/libqxt/blob/767498816dfa1742a6f3aee787281745afec11b8/src/gui/qxtwindowsystem_mac.h#L80

Objective-C: Trying to use Apple's MultipleDetailView

I am working on trying to make a splitview based application. I am trying to use Apple's MultipleDetailView example code
http://developer.apple.com/library/ios/#samplecode/MultipleDetailViews/Introduction/Intro.html
I have never really used example code like this (I usually just atart from scratch). All i did was copy the code into the correct classes of my app, but when I try to run it on the simulator the app doesn't open.
I feel like I am maybe forgetting something obvious, since I didn't code it myself.
Thanks!
The usual debugging technique applies. Put a breakpoint somewhere early in the program -- the first line of main() for instance, and debug from there. Do you hit the breakpoint? If yes, move forward through the code until you find the line that causes the problem. If no, try to back up even further if you can, and also look for any clues as to what's going wrong. If the app is running at all, there should be some sort of error message in the console output.
"...the app doesn't open" doesn't tell us nearly enough to help you. Something like "the app delegate is instantiated, but it's window and splitViewController properties are nil" goes much further toward getting to the root of the problem.