SingletonTest | 快速生成单例模式的预设 - 1 | Android library
kandi X-RAY | SingletonTest Summary
kandi X-RAY | SingletonTest Summary
1.Android studio File->Settings..->Plugins-->Browse repositores..搜索SingletonTest 2.安装插件,重启android studio.
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Top functions reviewed by kandi - BETA
- Update the visibility of the action .
- Performs an action on the screen .
- Check if the source files are a source folder .
- get runnable wrapper
- Entry point for the show dialog .
- Called when the button is OK .
- This method is called when the application is canceled .
- Add callback .
SingletonTest Key Features
SingletonTest Examples and Code Snippets
Community Discussions
Trending Discussions on SingletonTest
QUESTION
I have a C# script that boils down to this:
...ANSWER
Answered 2021-May-26 at 19:01Consider using a private constructor to force the static field to be initialized with a value when the SingletonTest object is created by the CLR.
Although Unity normally doesn't recommend using constructors with MonoBehvior because they're supposed to be scripts(among other Mono and Unity Quirks). I found this works great for my use cases for singletons(such as static editor Dictionarys that hold loaded metadata etc...
QUESTION
I need a confirmation about a singleton pattern.
I've a singleton class and I'm using it as dll. I write a program with a reference to this dll and I call my singleton class. I write a second program and I do the same.
Am I right if I tell you that even if I have two program they call both a single instance of my singleton class?
I tried to increment an static variable instancenumber that increment each time I pass the constructor and both programs tell me that the instancenumber is 1. So it should be ok but I need your advice to be sure.
Thank you. best regards
Class Singleton:
...ANSWER
Answered 2020-Sep-17 at 10:03This is a little confusing. You want to use a Singleton between two different programs as a DLL, but each program when loaded will load a different instance of the DLL. So, they wouldn't be using the same Singleton.
In your example if the two programs where run at the same time then the one run second should return 2 since the first program to get the Singleton would of incremented the variable to one.
QUESTION
ANSWER
Answered 2019-Feb-07 at 19:23In the Command textbox put XCOPY instead of cmd.
Let the arguments be there in Arguments textbox (source, destination and other options).
Something like below.
Command: XCOPY
Arguments: C:\Users\XXXXXX\test1 C:\Users\XXXXX\test2 /Y /I
QUESTION
I'm trying to update simple Vaadin UI Component from Singleton:
Here is component:
...ANSWER
Answered 2019-Jan-07 at 15:56Your question is a variant of this question, solution is the same.
Vaadin: get reference of UI to change data
Basically you will have multiple UI instances running in your tomcat/servlet engine. (At least one per user/browser)
So you have to broadcast the message to all instances of the UI and then handle it appropriatly.
If it should haven async (Without user action), then you also need to enable push, so that the message is pushed to the client webbrowsers. Otherwise it will only show up on the next user interaction with the vaadin app.
QUESTION
I'm looking for the right way to create a singleton class that accepts arguments in the first creation. My research lead me to 3 different ways:
...Metaclass
ANSWER
Answered 2018-Aug-17 at 13:53class OnlyOne:
class __OnlyOne:
def __init__(self, arg):
self.val = arg
def __str__(self):
return repr(self) + self.val
instance = None
def __init__(self, arg):
if not OnlyOne.instance:
OnlyOne.instance = OnlyOne.__OnlyOne(arg)
else:
OnlyOne.instance.val = arg
def __getattr__(self, name):
return getattr(self.instance, name)
QUESTION
I'm a c# developer.
I have confused with private constructor and static constructor in singleton pattern.
Here is my sample code in below:
standard singleton pattern and it is thread safe:
...ANSWER
Answered 2018-Apr-23 at 04:16So to answer you question, we need to go to basic.
Static constructors have the following properties:
- A static constructor is called automatically to initialize the class before the first instance is created or any static members are referenced.
- A static constructor cannot be called directly.
- If a static constructor throws an exception, the runtime will not invoke it a second time, and the type will remain uninitialized for the lifetime of the application domain in which your program is running.
But for standard singleton pattern
- It will be loaded, when we call it. So we have control over, when the singleton object will be created.
- User has complete control when to call it.
Hope it answers your question.
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Install SingletonTest
You can use SingletonTest like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the SingletonTest component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .
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