How to render the custom UIView in interface builder (StoryBoard or xib) iOS ?

It’s possible to build a custom interface for configuring your custom controls and have them rendered in real-time while designing your project.

Yes, we can design the custom control in interface  builder with help of IBInspectable and IBDesignable.


IBDesignable custom views also debut in Xcode 6. When applied to a UIView or NSView subclass, the @IBDesignable designation lets Interface Builder know that it should render the view directly in the canvas.

PHP OOPS difference between calling the class methods statically and by class instantiation with example and walk through

Before going further letme tell you class instantiation is just used to access all the content inside that class, say class methods,attributes, variables. constants can be accessed statically

To use the instantiation, Key thing is  just remember for instantiation we use this symbol -> (pointer) and for anything you call statically we use :: scope resolution operator.

Basically we have two methods to call the class methods

How to use create custom tokens in sending mails in drupal 8 Programmatically

 Use / create / replace custom tokens in emails which are sending from drupal 8

Here we are going to see how can we send emails with token replaced dynamic values in email in drupal 8.


1. We need to include the needed  class for tokens

use Drupal\Core\Render\BubbleableMetadata; 


2. Implement Hook_tokens_info