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QUESTION
Iam using EventChannel to handle events from hardware barcode scanner. EventChannel is initialized in initState, in main class - it works through whole app. While change is detected, it inserts value into global variable (ValueNotifier - i dont know, if it is right) and then I need to work with that value in multiple widgets. I need some sort of widget, which will tell me, that value updated and it will trigger onEvent function - something like RawKeyboardListener. I tried using listeners, but when i do pushNamed, the listener is still listening and it runs code from previous pages, while scanning.
Is there any widget, that would be suitable for me? (cant use ValueListenableBuilder, because it has no "onEvent" function) Or is there any way, to remove and add listeners while moving between pages, or while modal bottom sheet is opened? (I need to access previous listeners, after Navigator.pop)
...ANSWER
Answered 2021-Jun-14 at 10:37I solved my problem by using listeners and ModalRoute.of(context).isCurrent.
QUESTION
First time actually using anything to do with swing - sorry for the poor code and crude visuals!
Using swing for a massively over-complicated password checker school project, and when I came to loading in a JMenuBar, it doesn't render properly the first time. Once I run through one of the options first, it reloads correctly, but the first time it comes out like this:
First render attempt
But after I run one of the methods, either by clicking one of the buttons that I added to check if it was just the JFrame that was broken or using one of the broken menu options, it reloads correctly, but has a little grey bar above where the JMenuBar actually renders: Post-method render
The code for the visuals is as follows:
...ANSWER
Answered 2021-Jun-15 at 18:29You should separate creating your menu from your content. Please review the following example. I decoupled your menu, component, and event logic into meaningful phases.
QUESTION
I create a Pentest tool for educational purposes, so the old version was written using python 2, then I convert it to python 3 and when I try to run the main file pxxtf.py I got multiple errors, I correct most of them but for this one about Circular Import, I try multiple fixes from forums and StackOverFlow and nothing work with me.
When I try to run the main script :
...ANSWER
Answered 2021-Jun-15 at 14:05The error message is saying it all: "most likely due to a circular import".
pxxtf.py
QUESTION
i want update my variable and my code has a error that i dont khow where i have error
...ANSWER
Answered 2021-Jun-15 at 10:50I was trying to run your code in my local and I found 2 issues there:
- When application try to wait for input in if-else part, it's not waiting instead of loop to next iteration.
- Relate to no 1 and based on the result, application should be waiting for entering name. After I enter my name, it thrown an error. Why? Clearly that the application is not waiting for name, instead of choice.
The issue is clearly describe here: Java Scanner doesn't wait for user input
The problem is that nextInt() does not consume the '\n', so the next call to nextLine() consumes it and then it's waiting to read the input for y
My suggestion is change nextInt() to nextLine() then convert to int manually
QUESTION
I implemented an xsd scanner, which creates an targetNamespace= catalog. Includes are filtered, so the catalog has only the root files of the targetNamespace. With this catalog I'm resolving the required files (using a LSResourceResolver) to validate incoming xml files.
Map
...ANSWER
Answered 2021-Jun-09 at 23:44My question is, is it correct to specifiy multiple XSD file implementing the same namespace with different xsd structures ?
Yes, that is a valid use of XML schema. A schema does not have to be represented by a single XSD file. Please see https://www.w3.org/TR/xmlschema-0/#SchemaInMultDocs and https://www.w3.org/TR/xmlschema-0/#import
You may also find this thread helpful: What's the difference between xsd:include and xsd:import?
QUESTION
I want to know the cause of regexp not working properly.
...ANSWER
Answered 2021-Jun-15 at 05:29^[a-zA-Z]*$Match at least 0 or more of lowercase/uppercase letters from beginning to the end.a+C+a+2+3does not satisfy those requirements but an empty string does.^[0-9|*|+|/|-]*$Match at least 0 or more of digits,*,+,/or-from beginning to the end; thus will match1+2/33*4and an empty string too.
So, this might be the pattern you're looking for:
QUESTION
The SonarQube code analysis task in our build pipeline getting failed with below error.
Not sure from where the sonarqube is taking the location from . its taking the users home directory now. /home/vowne. We have enough space in other location and would need to change the sonarqube temp location to there.
Failed to execute goal org.sonarsource.scanner.maven:sonar-maven-plugin:3.8.0.2131:sonar on project: Unable to load component interface org.sonar.api.utils.TempFolder: Failed to create temporary folder in /home/vowne/.sonar: /home/vowne/.sonar/.sonartmp_xxxxxxx: No space left on device
...ANSWER
Answered 2021-Jun-14 at 20:24According to source code this path is derived from the following properties:
sonar.globalWorking.directorysystem property (resolved relative to settings below if not absolute),sonar.userHomesystem property,SONAR_USER_HOMEenvironment variable,.sonardirectory underuser.homesystem property.
It seems that the last case matches your scenario. Try to set one of the above settings to select different location instead of ~/.sonar.
QUESTION
Hello good people of StackOverflow community , currently I am facing a problem and I need your advice/help. I have written a code where it will take user input for Test Cases and for each Test Cases my program will execute and will provide the result.
Also for each Test Cases I am taking some other values from user as well
For ex
Code
ANSWER
Answered 2021-Jun-14 at 15:1110 ^ 12 is not what you expect it to be.
^ is the bitwise-xor operator.
The operator will logically compare each bit of 10 to 12 and will output a 1 at given bit if there is exactly one of the two input bits is 1 (and therefore the other is 0).
10 in binary is 0b1010
12 in binary is 0b1100
therefore 10 xor 12 is 0b0110 which is 6 in decimal
In order to calculate 10 to the power of 12 use Math.pow(10,12)
QUESTION
I have made a code to store each appointment calendar given by user to an ArrayList. Each ArrayList contains title, description, date and time.
Now I want to make an option for the user to edit the data of appointment calendar of their choice.
I use the appointment calendar's title for the comparison. Here's the code:
...ANSWER
Answered 2021-Jun-14 at 14:19It appears you are unfamiliar with the process of debugging your code. All computer programmers need to know how to do this. If you are using an IDE then it probably has a debugger. You should learn how to use it.
You are doing all your processing in the for loop. You should first locate the requested appointment via the for loop. After the for loop terminates, and only if you have found the requested appointment, should you process it. Here is some code to get you started.
QUESTION
What i want to achieve looks like this:
I have looked through mulitple sources online and on stackoverflow and many show that we can display the value in a textfield by using a raisedbutton.
So far i managed to use the barcode scanner to scan but the scanned barcode doesnt appear in the textfield like i want it to.
My Code:
...ANSWER
Answered 2021-Jun-14 at 11:12textController.text = barcode
instead of
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