先写一个测试程序获取 id

public class MainActivity extends AppCompatActivity {    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        //控件        TextView test = findViewById(R.id.test);        Context context = getApplicationContext();        //权限        //
            if (context.getPackageManager().checkPermission(Manifest.permission.READ_PHONE_STATE,                context.getPackageName()) == PackageManager.PERMISSION_GRANTED)        {            String  Imei = ((TelephonyManager) getSystemService(TELEPHONY_SERVICE)).getDeviceId();            Log.e("soho",Imei);            test.setText(Imei);        }        else        {            Log.e("soho","no permission");        }    }}

开始 hook新建一个项目在application中增加模块说明

            
            
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导入 xposed jar

先在 app 中新建 一个文件夹同时必须名为 lib(在 project 视图)复制模块进去打开模块依赖再添加修改 scope 为加载下或者运行一下不行重启 as会出现 3 个目录说明加载成功创建一个类 名称必须为Main实现IXposedHookLoadPackage接口实现方法声明主入口类路径在 main文件夹内建立 assets文件夹必须名为assets在assets文件夹内新建一个 xposed_init的文件名称也要一样在文件中声明入口类名称使用 findAndHookMethod

package com.example.liuhailong.hook;import android.telephony.TelephonyManager;import de.robv.android.xposed.IXposedHookLoadPackage;import de.robv.android.xposed.XC_MethodReplacement;import de.robv.android.xposed.XposedBridge;import de.robv.android.xposed.XposedHelpers;import de.robv.android.xposed.callbacks.XC_LoadPackage;public class Main implements IXposedHookLoadPackage {    @Override    public void handleLoadPackage(XC_LoadPackage.LoadPackageParam loadPackageParam) throws Throwable {        //先判断要 hook的包也就是那个 app        if(!loadPackageParam.packageName.equals("com.example.liuhailong")){            //打印日志这个打印在 apk上            XposedBridge.log(loadPackageParam.packageName);            return;        }          //打到对应的方法 进行替换 replaceHookedMethod替换方法        //参数1：名称 参数2：方法名 参数3：实现监听 重写方法        XposedHelpers.findAndHookMethod(        TelephonyManager.class,        "getDeviceId",        new XC_MethodReplacement() {            @Override            protected Object replaceHookedMethod(MethodHookParam argMethodHookParam) throws Throwable {                return "我才是序列号！";            }        }        );    }}

安装 hook 框架

de.robv.android.xposed.installer_v32_de4f0d.apk提示要你安装 hook点击框架点击安装它就会要你重启重启完后启动 hook

点击模块

重启就可以了 只要启动 hooktest 就会被 hook（hook不要启动 一般是写没有见面的我是为了调试)Main.java 完整代码

package com.bluelesson.xposed24;import android.telephony.TelephonyManager;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;public class Main implements IXposedHookLoadPackage {    @Override    public void handleLoadPackage(XC_LoadPackage.LoadPackageParam argLoadPackageParam) throws Throwable {        // 判断是不是要Hook的包，不是直接返回        if(!argLoadPackageParam.packageName.equals("com.bluelesson.testphoneinfo")){            return;        }//        XposedHelpers.findAndHookMethod(//                TelephonyManager.class,//                "getDeviceId",//                new XC_MethodReplacement() {//                    @Override//                    protected Object replaceHookedMethod(MethodHookParam argMethodHookParam) throws Throwable {//                        return "我才是序列号！";//                    }//                }//        );        XposedHelpers.findAndHookMethod(                TelephonyManager.class,                "getDeviceId",                new XC_MethodHook() {                    @Override                    protected void beforeHookedMethod(MethodHookParam param) throws Throwable {                        super.beforeHookedMethod(param);                        XposedBridge.log("beforeHookedMethod");                    }                    @Override                    protected void afterHookedMethod(MethodHookParam param) throws Throwable {                        super.afterHookedMethod(param);                        XposedBridge.log("afterHookedMethod");                        param.setResult("我是序列号");                    }                }        );    }}