¿Hay alguna forma de forzar que una UIView se vuelva a dibujar?

Is there way to force a UIView to redraw?

There is intentionally no way to demand “draw right now this very second” using the Cocoa drawing system. That would disrupt the entire view compositing system, trash performance and likely create all kinds of artifacting.

Visualization: UIView instances are responsible for displaying their content, typically this is done by implementing a draw method using either N:CoreGraphics , OpenGL or customizing some of their visual properties. Views also have built-in support for animating elements of the view.

The fact is the UIViewController class only provides the fundamental view management model. It corresponds to a blank view. There is no variable assigned for storing the recipe name. Thus, instead of using UIViewController directly, we extend from it and create our own class (known as the subclass of UIViewController).

The UIView class is a rectangular area on the screen that is responsible for displaying content and handling user interactions with that content. It can also contain other views, allowing the developer to create complex interactive controls.

Restricting UI access to the main thread is actually typical in other languages. In fact, both iOS and Android call the main thread the UI thread.

However, one thing has remained largely unchanged: we have just one thread per browser tab (with some exceptions) to do the work of rendering our sites and running our JavaScript. As a result, the main thread has become incredibly overworked. And as web apps grow in complexity, the main thread becomes a significant bottleneck for performance.

Pass the message value as a parameter in the postMessage call and then add a message event listener to the worker: To send a message back to the main thread, use the same postMessage API in the web worker and set up an event listener on the main thread: Admittedly, this approach is somewhat limited.