Overlay with Selective textures

Material：PET/PC/PP

Thickness：0.05mm-2.0 mm  Structure 

Overlay with printing+Rear Adhesive 

Description：

Touch Flat Overlay

Keys embossed Overlay

Application：

Remote controller，Fridge，Washing machine，Medical  instrument

The Overlay pattern is a common software design pattern that allows different layers of functionality to be combined and applied to a base object. It is often used to add additional behaviors or modify the functionality of existing objects without modifying their core implementation.

In the overlay pattern, an overlay object is created that encapsulates the additional functionality or modifications that need to be applied to the base object. The overlay object typically references the base object and forwards method calls to it, but can also override or add new methods as needed. This allows the overlay object to extend or modify the behavior of the base object without changing its implementation.

One of the key advantages of the overlay pattern is that it enables the separation of concerns and promotes code reusability. By encapsulating specific functionality in separate overlay objects, it becomes easier to manage and modify the behavior of individual layers without affecting the rest of the system. This is particularly useful in large codebases where multiple developers are working on different parts of the system or when new features need to be added without modifying existing code.

Another benefit of the overlay pattern is that it allows for dynamic runtime behavior modification. Since the overlay object references the base object, it can be swapped out or modified at runtime, allowing for changes to be made to the system without requiring a restart or recompilation. This can be especially useful in scenarios where it is necessary to change the behavior of objects or components without disrupting the overall system.

The overlay pattern is often used in conjunction with other design patterns such as the decorator pattern or the adapter pattern. For example, the overlay object can act as a decorator that adds additional functionality to the base object, or as an adapter that modifies the interface of the base object to match the requirements of a specific context.

To implement the overlay pattern, the following steps are typically followed:

1. Identify the base object that needs to be extended or modified.

2. Define the additional functionality or modifications that need to be applied.

3. Create an overlay object that encapsulates the additional functionality or modifications.

4. Configure the overlay object to reference the base object.

5. Implement any necessary forwarding, overriding, or additional methods in the overlay object.

6. Use the overlay object in place of the base object, either by replacing it entirely or by wrapping it within the overlay object.

In conclusion, the overlay pattern is a powerful software design pattern that allows for the dynamic extension or modification of existing objects without changing their core implementation. It promotes separation of concerns, code reusability, and runtime behavior modification, making it a valuable tool in large-scale software development.