Xposed Hook How to Hook a function with a custom class of Android app as a parameter

When I was looking for a solution online, I saw an article from a big guy on Kanxue Forum, the portal: https://bbs.pediy.com/thread-215039.htm

The article written by the big guy is relatively long and detailed. I briefly summarized the solution as follows:

1. Use the class loader to load the custom class of the Android app with the package name string of the class you want to load as a parameter;

E.g:

final Class<?> ArgClass= XposedHelpers.findClass("aqcxbom.xposedhooktarget.ArgClass", loadPackageParam.classLoader);

2. Pass the loaded class as a parameter, that's it;

 

The entire implementation code is as follows:

public void handleLoadPackage(XC_LoadPackage.LoadPackageParam loadPackageParam) throws Throwable {
//判断包名是否一致
        if (loadPackageParam.packageName.equals(mStrPackageName)) {
            LOGI("found target: " + loadPackageParam.packageName);
            final Class<?> ArgClass= XposedHelpers.findClass("aqcxbom.xposedhooktarget.ArgClass", loadPackageParam.classLoader);
            final Class<?> ArrayList= XposedHelpers.findClass("java.util.ArrayList", loadPackageParam.classLoader);
            final Class<?> Map= XposedHelpers.findClass("java.util.Map", loadPackageParam.classLoader);
//包名一致时查找是否有匹配参数的类及函数
            XposedHelpers.findAndHookMethod(mStrClassPath, //类路径
loadPackageParam.classLoader, //ClassLoader
mStrMethodName, //目标函数名
                    "[[Ljava.lang.String;", //参数1
                    Map, //参数2
                    Map, //参数3
                    Map, //参数4
                    ArrayList, //参数5
                    ArrayList, //参数6
                    ArgClass, //参数7
                    new XC_MethodHook() {
                        @Override
                        protected void beforeHookedMethod(MethodHookParam param) throws Throwable {
                            super.beforeHookedMethod(param); //这个函数会在被hook的函数执行前执行
                            LOGI("beforeHook");
                        }
                        @Override
                        protected void afterHookedMethod(MethodHookParam param) throws Throwable {
                            super.afterHookedMethod(param);//这个函数会在被hook的函数执行后执行
                            LOGI("afterHooke param: ");
                        }
                    });
        }
    }
}