For example, here is how you can toggle between two widgets when you click on a API as well, since it is based on the same low-level rendering engine, Skia.
In Android you update your views by directly mutating them.
However, in Flutter are useful when the part of the user interface you are describing does not depend on anything other than the configuration information in the object.
When Flutter is ready to process the data it will request it via a platform channel, and we can then send it across from the native side: package com.example.shared; import android.content. Since Flutter is single threaded and runs an event loop (like Node.js), you don’t have to worry about thread management or spawing background threads.
If you’re doing I/O-bound work, such as a disk access or a network call, then you can safely just use .
In this case, like on Android, in Flutter it is possible to take advantage of multiple CPU cores to do long running or computationally intensive tasks. Isolates are a separate execution thread that runs and do not share any memory with the main execution memory heap.
This means you can’t access variables from the main thread or update your UI by calling .There is no equivalent to this since you would just await on a long running function and Dart’s event loop will take care of the rest.However, there are times where you may be processing a large amount of data and your UI could hang.However, if a widget is reacting to change, the containing parent widget can still be stateless if it doesn’t itself react to change.Let’s take a look at how you would use a Widget has no state information associated with it, it renders what is passed in its constructors and nothing more.It is somewhat similar to implementing a custom s: navigating between Activities, and communicating with components.