NetworkMonitor | Android 全局网络变化监听 | Android library
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QUESTION
So Im writing a simple lyrics app that uses an API that receives a song name and artist and returns the lyrics for it. Everything works as expected if I send proper song names and artists, but im having a hard time detecting errors from the view and reacting accordingly such as showing an alert before the sheet gets rendered or something. I mean an error such as the user entering a song or artist name with a typo, which would make the API to not get lyrics for such song. When the lyrics are not found, the API returns a 400 not found HTTP code, maybe I can check for such an error code somewhere on the api method call and check later from the view or similar?
This is my view, simply makes the api call if theres an internet connection available, which toggles the sheet to render:
...ANSWER
Answered 2021-May-03 at 17:35@Published var apiError: APIError? // Added error enum in ViewModel. Use this in your view. Add message string in enum whatever you want to display in UI
URLSession.shared.dataTask(with: request) { data, response, error in
DispatchQueue.main.async {
self.responseHandler(data, response, error, songName, artistName)
}
}.resume()
QUESTION
Noob here.
I'm making a lyrics search app that simply uses an API which receives a song name along with an artist name and simply returns the lyrics. I basically have two questions:
First one Being: Im having trouble showing a new Sheet with information that comes from the API. So my code works as follows: From the View, press a button which, if the user is connected to the internet, call a method that does the whole API calling, creates a SongDetails object with all the info on that song(name, artist and lyrics) and add it to the @Published searchedSongs array (previously checking the same song hasnt been searched before). Once that is done, I want the sheet to show the lyrics from that array. My problem is the app crashes with an error of IndexOutOfRange when I want to access the searchedSongs array from the view since it seems its not actually waiting for the SongDetails object to be fully added to the array before rendering the sheet. This seems to be some sort of concurrency problem I guess. Is there any way to only show the sheet once the SongDetails object has been added to the array? My current code is:
HomeView.swift
...ANSWER
Answered 2021-May-03 at 05:54Your question doesn't include enough code that I can show you exactly what to do, but I can give you the general steps.
Don't set
showingLyricsSheet
directly after yourloadApiSongData
call.loadApiSongData
is asynchronous, so this will practically guarantee that the sheet will be shown before the API call loads. Instead, bind the sheet's presentation to a variable on your view model that only gets set once the API request has finished. I'd recommend using thesheet(item:)
form instead ofsheet(isPresented:)
in order to avoid pitfalls that are common with getting the most recently-updated values in the sheet.Instead of having
LyricsView
accessvm.searchedSongs
, perhaps pass the songs directly as a parameter toLyricsView
. Again, this would be easy with the strategy from #1 (including usingsheet(item:)
).
Here's a simple mockup illustrating the concepts from #1 and #2:
QUESTION
I have AKS cluster deployed(version 1.19) on Azure, part of the deployment in kube-system namespace there are 2 azure-cni-networkmonitor pods, when opening a bash in one of the pods using:
...ANSWER
Answered 2021-Feb-16 at 14:21/proc and /sys are special filesystems created and maintained by the kernel to provide interfaces into settings and events in the system. The uevent files are used to access information about the devices or send events.
If a given subsystem implements functionality to expose information via that interface, you can cat the file:
QUESTION
I'm having some trouble aligning Text inside a ZStack...more specifically, if I rotate the device after I started the app...
I want the Text to be aligned to the top leading of the View, but below you can see images of what's happening...
If I open the app with the device in portrait, the alignment is correct...
Alignment with app started in portrait
...but if I rotate the device to landscape, the text moves to the top center...
Alignment after rotation to landscape
Same thing if I start the app with the device in landscape, all aligned correctly...
Alignment with app started in landscape
...but if I rotate the device to portrait, the text almost disappear completely...
Alignment after rotation to portrait
This is the code for the ContentView:
...ANSWER
Answered 2021-Jan-10 at 02:00 ZStack(alignment:.topLeading) { //<= here
GeometryReader { proxy in //<= here
Image("vivibusso_home")
.resizable()
.aspectRatio(contentMode: .fill)
.border(Color.black)
.frame(width: proxy.size.width, height: proxy.size.height)// <= here
}
VStack(alignment: .leading) {
Text("Benvenuto")
.font(.largeTitle)
.fontWeight(.bold)
.padding(.leading)
Text("a Busso!")
.font(.largeTitle)
.fontWeight(.bold)
.padding(.leading)
}
//<=here
.padding(.top)
}
.navigationTitle(Text("ViviBusso"))
...
QUESTION
Recently I've updated Apache Ignite running in my .Net Core 3.1 application from 2.7.5 to 2.8.1 and today I noticed thousands of warnings like this in the log
...ANSWER
Answered 2020-Jun-03 at 23:28If you've defined a service and opened port 10800 then K8 will perform a health check through kube-proxy. This causes Ignite to receive an incomplete handshake on that port log the "unable to perform handshake" message.
ClientListenerNioListener: Site: WARN - Unable to perform handshake within timeout [timeout=10000, remoteAddr=/10.250.0.4:58050]
Here the client connector listener(ClientListenerNioListener) is saying that it was not able to establish a successful handshake within 10 seconds to remoteAddr=/10.250.0.4:58050
config client connector: https://apacheignite.readme.io/docs/binary-client-protocol#connectivity
client connector handshake: https://apacheignite.readme.io/docs/binary-client-protocol#connection-handshake
example of service w/port 10800 opened:
QUESTION
My usecase : I am trying to make a simple fetch GET request to https://www.google.com to check for the internet connectivity. I need to check the response code and depending upon that, decide if user is having internet connectivity. Now though I can see a 200 code (with no response headers or response) in the developer tools, the fetch always fails landing into the error handler for the fetch call and the console flags the CORS error.
I do understand since I am making a cross origin request so this should lead to CORS error.
I want to know what can I do to get my connectivity code working. I can't obviously alter google.com's response headers. The reason for using google.com for this is because of it's reliability, just like we hit google.com in browser mostly to check if internet is working or not :D
My code :
...ANSWER
Answered 2019-Oct-23 at 08:39You can add some parameters to your fetch request with its init object.
With the mode
property set to no-cors
, you can send GET and HEAD requests to the URL but you cannot access the response.
QUESTION
I am using the new "Network" library introduced in iOS 12, but I can't figure out why the network status does not get updated to .satisfied after user gets connected.
here is the code so far:
...ANSWER
Answered 2019-Sep-08 at 11:17NWPath
is a struct, so therefore it is immutable. It won't change within a given invocation of pathUpdateHandler
.
Once a network path becomes available you will get a subsequent invocation of pathUpdateHandler
with an .satisfied
status.
From a user-experience point of view it probably isn't a great approach to show a modal alert. You would typically indicate that the network connection is unavailable using some other indicator - a toast or icon - that disappears or changes once the network is available.
Alternatively or additionally use .waitsForConnectivity
on your connection.
QUESTION
I am developing android and ios application using nativescript angular project.I want to access my android library(aar) created using android studio,I was created a plugin project in nativescript and put the aar file inside the plugin project.I was also installed the plugin project to my project and run it but it was not working.How can i solve the issue
My java code is:
...ANSWER
Answered 2019-Mar-07 at 14:16You don't need a AAR library for simple implementations like this one. You could handle everything with your project here
QUESTION
The app does the following initially
- Get data from user including image and store in Sqlite database.
- image path is stored in Sqlite db.
The aim of the app is to upload the data automatically and I am able to do that successfully using BroadcaseReciever for text using Volley but stuck as I don't know how the process to upload the image from Android.
- I am able to retrieve the image path from the database but not sure what to do next.
I have done fair research but not getting solution when comes to upload image to server from imagepath stored in Sqlite. Below is image path example stored in sqlite. ( I am a beginner in Android)
...ANSWER
Answered 2019-Jan-23 at 04:02I resolved the issue by correcting the method public String getimagepath(Intent imageurl)
to this:
QUESTION
I try to use the QtNetwork library and added all dependencies for it in the .pro file. But when I compile my code Qt Creator fails in building the project and claims
C1083: Include "QTcpSocket": No such file or directory - telnet.h:4
I thought adding network to the .pro file would be enough?
networkmonitor.pro
...ANSWER
Answered 2017-Jul-25 at 12:05Normally this means you just forgot to re-run qmake
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