1 Introduction

Xposed is known as the most powerful artifact on Android. If you don’t know what xposed is, then you are really out. This blog will let bloggers take you to understand xposed.

(1) What is xposed?
Xposed is a framework. There are many modules on it. These modules all depend on xposed. The reason why xposed is the first artifact is that these modules can complete many incredible functions, such as modifying the wechat interface, automatically grabbing red packets module, self defining the text of the program, preventing wechat messages from withdrawing, and preventing the three hooligans of bat from calling each other Wake up, chain start, lock the screen automatically after the app to prevent background operation power consumption, there are many modification app or mobile data installed B module and so on.

(2) How does xposed work?
xposed The principle is to modify the key files of the system, and then when the app calls the system API, it first goes through xposed, and these xposed based modules can selectively do some “bad” things when the app calls these APIs, or modify the returned results, so that the effect of the app will change when it runs, but the app itself is not damaged, just when it calls the system API Wait, the performance of Android system has changed. This is hook, the technical term hook. So, to put it bluntly, xposed is a powerful hook framework.

Let’s have a professional explanation

By replacing / system / bin / APP_ The precess program controls the zygote process so that it loads a jar file of the xposed framework during the system startup XposedBridge.jar So as to complete the hijacking of zygote process and its Dalvik virtual machine, and allow the development