用frida hook安卓的输入框

话不多言，直接上代码，注意点都在注释里面了

setTimeout(function() {
    Java.perform(function() {
        //加载EditText类
        var editText = Java.use("android.widget.EditText");
        //加载CharSequence类
        var CharSequence = Java.use("java.lang.CharSequence");
        //hook getText()方法，这里getText()返回的是Editable类，Editable又是继承自CharSequnce类，
        //所以讲结果直接强转为CharSequence类。如果不做类型转换，这里console.log的输出结果就是[object, Object]
        editText.getText.overload().implementation = function() {
            var result = this.getText();
            var resultStr = Java.cast(result, CharSequence);
            console.log("result: " + resultStr);
            return result;
        };
    });
});