What does it mean that WeChat is displayed on other applications?

The upper display of WeChat in other applications is WeChat floating window function. The WeChat floating window function is mainly used to embed WeChat articles or applets into the floating window, so that people can easily return to the previous articles or applets after reading articles or using applets interrupted by other information, and can choose to open or close them in the application permissions. Wechat is a free application launched by Tencent on 201110, which provides instant messaging service for intelligent terminals. It was created by the product team of Tencent Guangzhou R&D Center led by Zhang Xiaolong. Wechat supports fast sending of free voice messages, videos, pictures and texts across communication operators and operating system platforms. At the same time, you can also use service plug-ins such as "shake", "circle of friends", "public platform" and "voice notepad" to enjoy streaming media content through * *.