基于WPF消息机制的多UI线程并发阻塞问题解决方案

A Solution to the Problem of Concurrent Blocking of Multiple UI Threads Based on WPF Message Mechanism

当前,软件产品的用户体验越来越受到人们的关注,影响用户体验的主要因素之一就是UI线程是否阻塞.在用户场景中多UI控件的高并发访问会造成UI线程阻塞,导致用户体验迅速下降.该文主要探讨WPF框架下UI线程并发阻塞问题,通过制作实验描述UI线程阻塞的具体问题,在分析Windows消息机制的基础上,提出利用发送同步消息和异步消息方法来解决UI并发阻塞问题.最后提出一种多UI线程并发阻塞问题的解决方案,并通过实验验证了这种方案的实际效果.

At present,more and more attention has been paid to the user experience of software products.One of the main factors affecting the user experience is whether the UI thread is blocked or not. High concurrent access to multiple UI controls in user scenarios will cause UI thread blocking,resulting in a rapid decline in user experience.This paper mainly discusses the concurrent blocking problem of UI thread under WPF framework,describes the specific problem of UI thread blocking by making experiments,and proposes to solve the concurrent blocking problem of UI by sending synchronous messages and asynchronous messages based on the analysis of Windows messages. Finally,a solution of concurrent blocking of multiple UI threads is proposed,and the actual effect of this scheme is verified by experiments.