HookMain.java

// SPDX-License-Identifier: Apache-2.0

import de.robv.android.xposed.IXposedHookLoadPackage;
import de.robv.android.xposed.XC_MethodHook;
import de.robv.android.xposed.XposedBridge;
import de.robv.android.xposed.XposedHelpers;
import de.robv.android.xposed.callbacks.XC_LoadPackage;

/**
 * = █████▒█    ██  ▄████▄   ██ ▄█▀       ██████╗ ██╗   ██╗ ██████╗
 * ▓██   ▒ ██  ▓██▒▒██▀ ▀█   ██▄█▒        ██╔══██╗██║   ██║██╔════╝
 * ▒████ ░▓██  ▒██░▒▓█    ▄ ▓███▄░        ██████╔╝██║   ██║██║  ███╗
 * ░▓█▒  ░▓▓█  ░██░▒▓▓▄ ▄██▒▓██ █▄        ██╔══██╗██║   ██║██║   ██║
 * ░▒█░   ▒▒█████▓ ▒ ▓███▀ ░▒██▒ █▄       ██████╔╝╚██████╔╝╚██████╔╝
 * ▒ ░   ░▒▓▒ ▒ ▒ ░ ░▒ ▒  ░▒ ▒▒ ▓▒       ╚═════╝  ╚═════╝  ╚═════╝
 * ░     ░░▒░ ░ ░   ░  ▒   ░ ░▒ ▒░
 * ░ ░    ░░░ ░ ░ ░        ░ ░░ ░
 * ░     ░ ░      ░  ░
 * <p>
 * ---------------------------Created by Xyx on 2018/6/4.----------------
 */

public class HookMain implements IXposedHookLoadPackage {
    @Override
    public void handleLoadPackage(XC_LoadPackage.LoadPackageParam lpp) throws Throwable {

        if (lpp.packageName.contains("com.tencent.mm")){
            XposedBridge.log("====进入微信了====");

            XposedHelpers.findAndHookMethod("com.tencent.mm.ui.chatting.o",
                    lpp.classLoader,
                    "EM",
                    String.class,
                    new XC_MethodHook() {
                        @Override
                        protected void beforeHookedMethod(MethodHookParam param) throws Throwable {
                            super.beforeHookedMethod(param);
                            String arg = (String) param.args[0];

                            XposedBridge.log("arg:"+arg);

                            if (arg.equals("Test")){
                                param.setResult((true));
                            }


                        }
                    }
            );
        }

    }
}