Exploring Android support the technical principle of the technical principle of the ASYNC Layout Inflator in the Java library

Asynclayout Inflater in the Android support library is a tool to fill the layout in the background thread, which aims to improve the performance and response of Android applications.In this article, we will explore the technical principles of Asynclayout Inflator in the Java library and provide some Java code examples. The principle of Asynclayout Inflator is based on Android's Layoutinflator class, which is usually used to fill the charging view from the XML layout file.However, the main problem of LayoutInflator is to perform layout operations on the UI thread, which may lead to too long stuttering and response time, especially when the layout is complicated. Asynclayout Inflator performs layout operations by using background threads to separate these operations from UI threads, thereby avoiding stuttering and response delay.Its working principle is as follows: The first step is to create an Asynclayoutinflator instance, which provides a method for performing asynchronous layout operations.You can instantiate asynclayoutinflater in the following ways: AsyncLayoutInflater inflater = new AsyncLayoutInflater(context); The second step is to fill the layout using asynclayoutinflate.inflate () method. This method accepts three parameters: the layout of the resource ID, the parent view and a callback interface. The following is a simple example, demonstrating how to use Asynclayoutinflator to fill the layout: inflater.inflate(R.layout.my_layout, parentView, new AsyncLayoutInflater.OnInflateFinishedListener() { @Override public void onInflateFinished(View view, int resid, ViewGroup parent) { // Here } }); In this example, we convey the implementation of the layout resource ID, parent view, and an OninflatingFinishedListener interface.OninflatingFinishedListener interface is called after the layout is filled. It receives the filled view, layout resource ID, and parent -level view as a parameter. Asynclayoutinflator will perform layout operations on the background thread, and call the onInflatefinished () method of the oninflatingFinishedLishes interface after completion.In this method, you can perform any operations to the filled view. It is worth noting that Asynclayoutinflator will not perform all layout operations on the background thread.It only performs the actual filling of the view.Other operations that have nothing to do with layout, such as handling clicks and setting view attributes, still need to be executed on the UI thread. To sum up, Asynclayout Inflater in the Android support library is a tool for performing layout filling in the background thread.By separating the layout operation from the UI thread, Asynclayout Inflater can improve the performance and response of applications.We can use the Asynclayoutinflator class to instantiate ASynclayout Inflator and use its INFLATE () method to perform asynchronous layout operations.By using the oninflatingFinishedListener interface, we can process the viewing view after the layout is complete.