var className = "com.xxxx.xx";
var funcName = "func";
var classObject = Java.use(className);
// 静态和实例方法的hook代码一致
classObject[funcName].implementation = function (x) {
  console.log(`${className} -> call ${funcName} - param: `, x);
  x = "param"; // 修改参数 除基础类型外其他类型需要自行构造。
  let result = this[funcName](x);
  // result = "param";  // 修改返回值
  return result;
};

var classObject = Java.use("com.xxx.xx");
classObject.$init.implementation = function (a, b) {
  console.log(`${className} -> call $init - param: `, a, b);
  return this.$init(a, b);
};