MultiButton | Button driver for embedded system
kandi X-RAY | MultiButton Summary
kandi X-RAY | MultiButton Summary
Button driver for embedded system
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QUESTION
I am writing a program in Codenameone that will pull an array of products from a url and display them in a list. I want to reload the page every time I press a button, so I code in a method called reload that should delete everything in the form and then replace it all with the newly pulled list.
...ANSWER
Answered 2021-Jun-10 at 01:13removeAll()
doesn't recurse. That would be expensive and often redundant since the GC usually removes the entire tree.
Typically these problems are pretty simple to workaround though. There are two approaches:
Stop caching the component and re-create it every time you reload. This will mean it's never "already in" something
Before adding the problematic component just do:
problematicComponent.remove()
. This will remove it from its parent (or do nothing if it has no parent)
In your case it seems like you're doing this:
QUESTION
I want to create a list of SwipeableContainers in a boxlayout on codenameone.
...ANSWER
Answered 2021-Mar-31 at 01:43I'm guessing the deleteb
button is used by another button. If you modify this code as such it should work:
QUESTION
My code is set up a little different than any other examples I can find for this functionality. I need to override the hove backgroundColor of the button. I create a component that using the Material UI Button
...ANSWER
Answered 2021-Mar-19 at 15:31I think you can pass it like this
QUESTION
I am making my own version of bomberman, and was wondering if there was a way to have colliderect check for all Rect's on the screen, currently I have only managed to get it to work for one Rect at a time. heres my code(note it is incomplete) note what im trying to get the code to check for collisions with multiple 25x25 Rect's (the terrain squares) without checking for collision with each individual one.
...ANSWER
Answered 2020-Sep-28 at 14:50You can use rect.collidelist(list)
and pass in a list of rects.
I'm pretty sure that all collidelist()
does is iterate through the list of rects, similar to what you're currently doing, but I'd recommend looking at the documentation if you have any further questions.
QUESTION
I’m trying to change a view based on a selection made with a button. I’m using Combine and SwiftUI.
I create a view router class with a @Published
var:
ANSWER
Answered 2020-May-30 at 02:00You have multiple instances of ViewRouter
with each view having its own instance. If you change that instance, the other instances are not going to change.
To solve this, you either have to pass one instance around manually:
QUESTION
Sometimes it is useful to consult a list of the components offered by Codename One before making a decision on how to build a graphical interface. I have the following list. Can you tell me if it is absolutely complete or if something is missing? Thank you
...ANSWER
Answered 2020-May-18 at 13:21Thank you for the link in the comment. I improved and integrated the previous list, and for each Component I added one or more useful links, based on my searches. Each link can lead to a javadoc, a section of the developer guide or a section of an official Codename One blog article, depending on what I found most useful.
I published this new list here: https://www.informatica-libera.net/content/components-disponibili-codename-one Even if the beginning of the article is in Italian, I assume there are no problems: you can ignore what I wrote in Italian and look directly at the list.
I know the ideal would be to copy this list here rather than provide a link to one of my pages, but all the links included would be laborious to recreate here.
I published it first of all for my own benefit, but I hope it will be useful for other developers as well. I accept suggestions for improvements.
QUESTION
i have been doing the SearchToolBar CodeNameOne API and ran into CLassCastException
...ANSWER
Answered 2020-May-13 at 11:05I believe the error is actually in the preceding code and not in the code you have submitted here. The code you have provided here (pulled from the link you also provided) assumes that f.getContentPane()
only contains MultiButton
and no other type of Component
.
In the example you have linked, the creator is iterating through components, casting each one to a MultiButton
. In order for this cast to succeed, the object that is assigned to cmp
in each iteration of the loop has to actually be a MultiButton
.
In your code, while iterating in your for-loop, at one point cmp is assigned a value of type com.codename1.ui.Label
, this type is not a MultiButton
so the cast fails and throws the runtime exception java.lang.ClassCastException
.
To fix: either ensure that the ContentPane
only contains MultiButton
s or add a check inside your for loop to skip an iteration if the component isn't a MultiButton
like follows:
QUESTION
How can I set the safe area for pull to refresh? I have a form with with an infinite container. I set the IC with safe area ic.setSafeArea(true). When I rotate the screen the safe area is respected(see image 1). If i pull to refresh the safe area is not respected (see image 2). With the below code taken from the InfiniteContainerSample, how can I ensure the safe area is respected after pull to refresh?
...ANSWER
Answered 2020-May-05 at 13:07Thanks for reporting this. This has been fixed on github. It will be included in the next release on Friday.
QUESTION
I am trying to use the toolbar search feature to search through a number of SwipeableContainers. Each container has a MultiButton on top and a number of buttons bottom left and bottom right. Essentially I receive data from a database and loop through the result adding a SwipeableContainer and set each one with a name (Line1 of the MultiButton) using sc.setName(). I then attempt to search using the code below:
Here is the code:
...ANSWER
Answered 2020-Mar-12 at 02:16You have more than one component within centercont
. One of them is a SwipeableContainer
and the other is a Label
.
You can workaround it by checking with instanceof
before doing the cast but you might want to check your code/component inspector to see what's that label and if it should be there.
QUESTION
So, I have a form with a multibutton, but the scrolling is not working. I already tried it with a normal button, but I need the secondTextLine
...ANSWER
Answered 2019-Feb-01 at 17:05I solved this problem using this code:
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