Programming VIP

Learning objectives Familiar with BRVAH for adapter requirements Summary BRVAH It's a great open source project on Github. Its main function is to help us use Recyclerview control more efficiently and to deal with the Adapter of common requirements in the project. It's very convenient to use. More introduction can be given. BRVAH of ...

Foreword: The greatest advantage of custom composite control is reusability, which can save us a lot of code. But when we customize composite control, the encapsulated control is either used by ourselves or by others. The encapsulated code should be readable and easy to modify. There is no need to encapsulate too many attributes. Generally, it ...

Equipment for data, drive for processing1. Take led-s3c24xx.c as an example to analyze the registration process of platform devices and drivers.The driving data structure for led is as follows:static struct platform_driver s3c24xx_led_driver = { .probe = s3c24xx_led_probe, .remove = s3c24xx_led_remove, .d ...

Python decorators are very simple to use. Anyone who can use Python functions can learn to use decorators: Python @somedecorator def some_function():     print("Check it out, I'm using decorators!") Closures, but how to write decorators is another matter, and it's not easy. You have to understand the following: How to use function as firs ...

4) Content selector contains('john'): Indicates a label containing a specified string, which is case sensitive.Empty: An element that represents a query for empty labelshas('p'): An element that indicates that a query has child elementsaddClass("Style Name"): Add Styles to all tags queriedparent: Represents a query for non-empty labe ...

Constraint Layout (Constraint Layout), the latest Android layout launched by Google I/O in 2016, is still in the perfect stage. It should become the mainstream layout style in terms of the strength of its launch. In the latest version of Android Studio, Constraint Layout has become the default layout. concept ConstraintLayout Constraints ...

Vertex shader calculates vertex by vertex and receives vertex by vertex information. If we want to specify the color of the surface, we need to define the color to the vertex. For example, if we want to define a triangle as a color, we must have the color of all three vertices as a color. But you will find that a vertex of a cube will be used ...

Object-Oriented, Object Creation, Prototype... . (Note: Part of the content is from the videos you learned.) Three Characteristics of Object-Oriented I. Packaging A small example is given to illustrate the necessity of packaging. (1) This is how we write code without object-oriented encapsulation var divs = document.getElementsByTagN ...

One-to-many | many-to-one 1. Relational expression Expressions in the Expressions 　　 Entity expression 　　 Expressions in orm metadata One-to-many <! - Sets, one-to-many relationships, configure in configuration files - > <!-- Name attribute: collection attribute name Column attribute: forei ...

flutter In Flutter, Stateless Widget and Stateful Widget are classified according to whether the component itself is stateless or not. In Widget s, there are button s or widgets representing structural elements, font s and color s representing styles, widgets for padding layout, and widgets creating their own widgets by exten ...