iView | use jQuery image slider | Animation library
kandi X-RAY | iView Summary
kandi X-RAY | iView Summary
iView is easy to use jQuery image slider with animated captions, responsive layout and HTML Elements like (Video, iFrame) slider. Easily add unlimited number of slides and captions. Use it as image slider, image gallery, banner rotator, banner ads, or even presentation.
Support
Quality
Security
License
Reuse
Top functions reviewed by kandi - BETA
Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of iView
iView Key Features
iView Examples and Code Snippets
Community Discussions
Trending Discussions on iView
QUESTION
Context: I am trying to find the directional heading from a small image of a compass. Directional heading meaning if the red (north) point is 90 degrees counter-clockwise from the top, the viewer is facing East, 180 degrees is south, 270 is west, 0 is north. etc. I understand there are limitations with such a small blurry image but I'd like to be as accurate as possible. The compass is overlaid on street view imagery meaning the background is noisy and unpredictable.
The first strategy I thought of was to find the red pixel that is furthest away from the center and calculate the directional heading from that. The math is simple enough.
The tough part for me is differentiating the red pixels from everything else. Especially because almost any color could be in the background.
My first thought was to black out the completely transparent parts to eliminate the everything but the white transparent ring and the tips of the compass.
True Compass Values: 35.9901, 84.8366, 104.4101
These values are taken from the source code.
I then used this solution to find the closest RGB value to a user given list of colors. After calibrating the list of colors I was able to create a list that found some of the compass's inner most pixels. This yielded the correct result within +/- 3 degrees. However, when I tried altering the list to include every pixel of the red compass tip, there would be background pixels that would be registered as "red" and therefore mess up the calculation.
I have manually found the end of the tip using this tool and the result always ends up within +/- 1 degree ( .5 in most cases ) so I hope this should be possible
The original RGB value of the red in the compass is (184, 42, 42) and (204, 47, 48) but the images are from screenshots of a video which results in the tip/edge pixels being blurred and blackish/greyish.
Is there a better way of going about this than the closest_color() method? If so, what, if not, how can I calibrate a list of colors that will work?
...ANSWER
Answered 2021-Jun-04 at 08:45If you don't have hard time constraints (e.g. live detection from video), and willing to switch to NumPy, OpenCV, and scikit-image, you might use template matching. You can derive quite a good template (and mask) from the image of the needle you provided. In some loop, you'll iterate angles from 0° to 360° with a desired resolution – the finer the longer takes the whole procedure – and perform the template matching. For each angle, you save the value of the best match, and finally search for the best score over all angles.
That'd be my code:
QUESTION
I can't think a way to create view for inheritance hierarchy. If I create class hierarchy as in the code below, than I can't use methods and properties of the B class properly from BView.Set(...) without casting , because BView is inherited from AView. And Set method signature accepts variables of A type, but in BView I wish to Set B type variables. How can I solve my issue?
...ANSWER
Answered 2021-Apr-28 at 15:31BView
should not be a subtype of AView
(just like a List
is not a subtype of a List
).
Why? The Liskov substitution principle states that a subtype can be used as "drop-in replacement" for a supertype. However, this is not satisified for BView
and AView
:
QUESTION
I added the ability for users to add a photo to their profile as an avatar and ran into a problem. I then added a process to show the photo when the user logs in. However, I ran into a situation when a User is creating a new account. If a User creates an account and then tried to login, the Login failed. It appears that the Query to get the photo does not handle nulls in this case.
I tried to check for the photo first, just to be sure, but the code is failing in that check step.
...ANSWER
Answered 2021-Apr-22 at 20:08You're evaluating the length of ProfilePicture
before you're checking if it's null. So,
Change:
QUESTION
How do I specify an (abstract?) data type (or typealias, etc.) MyType
such that these criteria are enforced:
MyType
is a subclass ofandroid.view.View
MyType
implements the interfaceMyInterface
Use case: I'd like to have an interface
...ANSWER
Answered 2021-Apr-20 at 15:50So you want to define MyType
as having a View superclass and implementing MyInterface
? Interfaces can't inherit from classes, so MyType
would have to be a class that subclasses View
.
If your concrete implementations all subclass that you'd be fine, but because you're using classes you don't control as far as I can tell (LottieAnimationView
) you can't make them inherit from your supertype.
You might be able to wrangle something with generics (I'm not sure you're able to pass a class type and call a constructor to use it as the supertype though), otherwise you might want to just create a wrapper class that holds a View
and you can put what you like in there.
And typealiases are just labels really. They're great for readability and making your definitions clearer - like having a phoneNumber
property with a PhoneNumber
type, where that's just an alias for String
, or having a (Int) -> Unit
function type and naming that ResultListener
. But there's nothing stopping you from just passing a plain old String
to a PhoneNumber
property, because they're the same thing, they're not actually separate types or anything. So I don't think there's anything clever you can do with them as far as the type system goes!
QUESTION
My classes:
...ANSWER
Answered 2021-Mar-05 at 16:28Your problem is related to covariance & contravariance. In some cases we can have a solution by declaring the view model abstract as interface
instead of using abstract class (so that we can use covariance). The covariant interface can only expose get-only properties. So in this case I think you can change to that to keep your current design and I think it's reasonable because usually the ViewModel class should have readonly properties (once loaded). That prevents the properties from being accidentally modified after loaded (such as in the view scope). That makes sense and we can adapt to that design. The data instead can be loaded via the constructor (once).
Here is my proposed design with the most minimal change applied to your current design.
Note that due to the constraint where Trad : BaseTrad
which requires the BaseTrad
to be an interface as well (cascading the variance of Item
). So basically you need to turn 3 classes into 3 interfaces. I would use interface without hesitation but not sure if it's applicable in your case. However I'm pretty sure that this is the only solution if you want to keep your current generic design. The logic can be maintained as much as possible, by changing your current generic design, a lot of code will be changed as well.
The 3 interfaces you need are as follows (Note about using the keyword out
and some properties being changed to get-only):
QUESTION
In ASP.NET Core 3.1 project I have a custom IStringLocalizerFactory
that works with database through entity framework:
ANSWER
Answered 2021-Jan-28 at 18:37I believe that registering LocalizationContext with transient scope will not help as EFStringLocalizerFactory is registered as singleton anyway.
Correct.
Is there any better/proper way of handling concurrency within IStringLocalizerFactory aside from introducing global locks or other inefficient techniques?
Not as far as I know.
EF Core DbContexts only support one operation at a time, which I think the error message is clear about. The other factor is that the in-memory cache implementation doesn't do any sort of locking, so the lambda expression used to create the cache entry can be executed concurrently by several consumers wanting to read from the cache.
Explicitly locking is the way to go IMO, with two options:
- Around the GetOrCreate method, meaning you can guarantee the EF Core query will only be run once, but no 2 consumers will be able to read from the cache concurrently; or
- Around the EF Core query, meaning you can potentially override an existing cache entry, but consumers can then read from the cache concurrently.
I'd personally go with option 2 and use a SemaphoreSlim instance.
QUESTION
ANSWER
Answered 2020-Nov-25 at 02:14I believe you want the created method to be called when the component is being created. Remove the created function from inside the methods property and add it to the exported default object.
QUESTION
ANSWER
Answered 2020-Nov-22 at 20:50When you use the @page
directive, you tell that this view is a Razor Page View.
@page makes the file into an MVC action - which means that it handles requests directly, without going through a controller
Microsoft Docs: Introduction to Razor Pages in ASP.NET Core / Razor Pages
But you probably want to use ASP.NET Core MVC View:
In ASP.NET Core MVC the
View
is an HTML template with embedded Razor markup.Microsoft Docs: Views in ASP.NET Core MVC
So, the fix should be simple. Remove the @page
directive from your view and it should work.
QUESTION
I'm trying to show the calculated value of the products and category to the side navigation bar. When the page is at the home page it works exactly as expected. but when I navigate to the product page it fails. The same code of the following works for the home page but fails for the category page.
Same code but not working for category page.
...ANSWER
Answered 2020-Nov-16 at 05:02@category.Products.Count()
According to your error message, no value is assigned to it when querying. It may be that the data type is not converted after querying, you can try this.
QUESTION
I'm trying to implement viewpager when press of a button on secondary activity for that I created a PageAdaper class which extends Recycler view.Adapter .I got viewpager must not be null error on runtime .
PageAdaper.kt
...ANSWER
Answered 2020-Aug-23 at 18:48So, startActivity
will go to the GalleryActivity
class. You need to put the lines after that into the GalleryActivity
.
Okay, now that you've added your GalleryActivity.kt. You need to make 2 changes. First, in your activity_main:
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
Install iView
Support
Reuse Trending Solutions
Find, review, and download reusable Libraries, Code Snippets, Cloud APIs from over 650 million Knowledge Items
Find more librariesStay Updated
Subscribe to our newsletter for trending solutions and developer bootcamps
Share this Page