Once you get your head around using Behavior Subjects, you will probably wonder how you ever survived without using them.
Computebuffer getdata async code#
This happens right after it awakensunless it's disabledand also after a hot reload is completed. The combination of await, async, and the Task object makes it much easier for you to write asynchronous code in. We can deal with this by replacing the Awake method with an OnEnable method, which gets invoked each time the component is enabled. Keep data updated automatically across the application positionsBuffer new ComputeBuffer(resolution resolution, 3 4) This gets us a compute buffer, but these objects do not survive hot reloads, which means that if we change code while in play mode it will disappear.Access the data without worrying about timing, because we know that we will always receive a valid value (even if it is just the initial value).With the method of loading data using a BehaviorSubject that we have discussed in this article, we can: SummaryĪ BehaviorSubject is basically just a standard observable, except that it will always return a value.
Computebuffer getdata async update#
Likewise, if we ever update the data in the service in the future, we can just call the next method again to supply anything that is subscribed to the BehaviorSubject with the new data instantly. Initially, the list will be empty because it will just receive an empty array, but as soon as the load method completes myListData will be instantly updated with the new data. Let's take a look at a quick example: import If you are not familiar with the concept of asynchronous and synchronous code, I would recommend reading: Dealing with Asynchronous Code in Ionic. However you are storing your data, the process for retrieving that data will almost always be asynchronous. ComputeBuffer.GetData 1.12, 0.28, 1.10, 0.22, 0.57, 0.48 AsyncGPUReadbackRequest.GetData 0.01ms AsyncGPUReadbackRequest.GetData AsyncGPUReadbackRequest. We are calling the async function to load the data and once it is loaded, we are assigning the values to items. Inside App component, we are using one FlatList to show the items. ListItem component is used to draw a list item. The idea is that the service handles any of the complexities required to fetch the data, and from anywhere else in your application you can just make a call to the service to retrieve the data. getData is an async function that fetch the data from the given url and returns the json value of it. This might be from a local JSON file, local storage, a remote database, or some other kind of data store. It is common in Ionic applications (and Angular applications more broadly) to create some kind of service to handle loading data from some source.
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