I found a javascript implementation of MediaPipe's FaceMesh and HandPose but not Palm Tracking.
They currently do not have a javascript API for hand tracking.
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I need to develop a desktop app for Windows and Mac OS with Jetbrains Compose Multiplatform
I will use the Kotlin language to design the UI.
But I need guidance on following points:
Which languages will be required for the core logic / calculations / network client, etc. in the desktop app ?
Can we write the entire Microsoft desktop app in Kotlin (Compose for Desktop)
Can we use Android classes like Fragment, ViewModels, Room in Compose for Desktop ?
If we cannot use Android classes in desktop app then, where do we write the code which we write in ViewModel classes in Android ? How to structure the code and packages
What is the best architecture for Desktop app which are being built with Compose or Desktop. ?
I could not find any architecture diagram for Desktop Compose App
Can we use Jnuit and Espresso for writing UI and Instrumented tests in Compose for Desktop ?
Note:
I have gone through the official documentation of compose desktop.
I also went though the code of samples and multiple blogs, but the above queries are not answered clearly.
Hence I need your guidance
1,2 — I guess that any JVM-compatible language would be fine.
3,4 — https://github.com/JetBrains/compose-jb/discussions/1587
You should abstract from androidx ViewModel creating a pure Kotlin ViewModel delegate that can be injected into android ViewModel.
So in this case androidx ViewModel will play the role of wrapper over multiplatform implementation.
But keep in mind that there is no component's lifecycle or navigation ecosystem like in Android world. For this purpose, you can use Decompose library.
I am not an expert in Compose for Desktop, so I would prefer not to answer the last two questions. Also, I would recommend you to search for answers in the #compose-desktop channel of the Kotlin official Slack workspace(get an invite here).
i want to get location (use gps) at xamarin.form - that is, in cross platform.
but i can't find. only platform-dependent (at android, at ios, etc.)
if you know, please share to me !
(i found xamarin.mobile - geolocation, but it is also platform-dependent T^T)
This is going to be device specific. Probably the best approach is to create an Interface in your portable class library and then implement the interface in your Android and iOS -specific projects. The PCL will connect to the implementation through the Xamarin Forms DependencyService. Please have a look at the following link Accessing Native Features via the DependencyService
It is likely that you will be able to use the other examples on the Xamarin site to write your platform-specific code. For example here is a link to the Android LocationService
Checkout Forms Labs. It should be pretty simple to reuse it even without Xamarin.Forms (if that's the case).
Qml uses Javascript extensively.
Firebase offers Javascript libraries for browsers.
Is it possible to use Firebase from QML?
Any specific details are welcome.
QML, being an extension of QT, which is essentially a cross-platform tool for creating desktop/mobile apps, is not a web browser and does not run it's JavaScript-like code in a browser environment.
Thus, it seems highly improbable that you could get Firebase's JavaScript SDK (which expects to be presented with APIs like XmlHttpRequest, WebSocket, a DOM, and iframes) to function appropriately.
Since Firebase does not offer a C++ SDK, it seems like the best approach to accessing Firebase from QML might be to utilize the REST API for which a community implementation exists here.
As of end of 2016, a C++ SDK is now available, mainly aimed to mobile platforms. Currently only a subset of Firebase features are supported by it is in active development and probably some if not all of the missing features will be added.
If you intend to create mobile apps, it is possible to integrate the available native Firebase SDK for Android and iOS in your application.
This solution requires native Java and Obj-C code to work with the SDK. You can then wrap this code with a C++-based type to expose the Firebase SDK features for QML.
This allows a simple usage with QML similar to:
FirebaseDatabase {
id: firebaseDb
Component.onCompleted: getValue("public/path/to/my/object")
onReadCompleted: {
if(success) {
// parameter "value" can be a nested object/array, as read from your database
console.debug("Read value " + value.subarray[3].subproperty.text)
}
}
}
As there's quite some implementation work required, the above example is taken from a ready-made solution by V-Play Engine. Some more usage examples can be found here.
This one is a quick question regarding the possibility of having the same LnF (same look) on Android and iOS, is there an API that can provide something like this? SImilar to MAUI in MoSync or IwUI in marmaladeSDK?
Basically what I would like to do is to create my UI once for both iOS and Android using monodeveloper.
Note: Before anyone downvotes anymore, please take into account that this is a real requirement for a real project. The question is not without reason, since after looking at the documentation, I can see that Xamarin does not provide such solution, but other multi-platform SDKs do provide such solution, and since the mono ecosystem is vast, perhaps there is a third party library that can provide such functionality.
Unfortunately most of your code portability will be on the backend (non UI) when leveraging Monotouch. There are far too many inconsistencies with how an Android UI vs iOS UI are implemented respectively to their OS's.
Have you checked out http://ifactr.com/overview ? It is a paid product so I haven't tried it, but it might be at least work looking into. Other than this, no there is no cross-platform UI if you go the Mono route.
Taken directly from their page:
"But we learned that even with as much code sharing that MonoCross provides, for applications with significant UI layers, the burden of creating platform-specific UIs can be overbearing. So we created the iFactr UI abstraction layer, which allows developers to code to an abstract UI interface, and then reference our iFactr concrete implementations of that interface for all the mobile platforms, both as native UI implementations and HTML5 UI implementations.
While not a silver bullet for all mobile development, it is designed and optimized for rapidly creating data-driven UIs that enterprise users tend to demand. And because it’s integrated with MonoCross, you can mix-and-match your iFactr UI screens that are shared across platforms with screens that you can code to target specific platforms using the entire set of native APIs available on each mobile OS."
The problem is Android and iOS have different UI / UX metaphors.
Take this for example: http://kintek.com.au/blog/portkit-ux-metaphor-equivalents-for-ios-6-and-android-4/
The differences are fairly significant. If you use a development wrapper then you'll have to 100% rely on their tools. We've had experience with Titanium in the past and it wasn't good at all.
Is it possible to integrate a webkit engine in a java application.
Here is my thinking, I would like to implement my User Interface using javascript and business logic in Java and want to communicate back and forth between the js and java. I have looked at titanium and chromiumembedded. But i dont get the complete picture. Can anyone give me a good explanation of webkit being used in a standalone application.
There are a few solutions, the main one being for SWT. See here for the SWT solution. There was a similar question here referring to SWING.
Edit: Oh my, I can't believe I forgot Lobo, a browser written in Java. More Specifically, their Browser API providers support for embedding. This seems to be the better solution for cross-platform and possibly stability. I'm not 100% sure on the first two solutions' development. Hope that provides some insight.
JavaFX 2 has an embedded browser component based on Webkit. There is a tutorial provided by Oracle here.