USSD 杂记

Android Oreo允许应用程序读取来自运营商的USSD消息。

利用emoney执行话费充值，需要执行USSD代码，尝试编写apk执行ussd代码进行充值。

尝试在Android8的系统上进行USSD session交互，发现暂时没有解决方案。。。。

尝试一次性发送所有USSD，*123*1*5*1256#，发现如果到了需要输入类似密码之类的自定义字符串时，会失败。

只能发送第一个USSD代码，无法进行后续的菜单交互。如果只需要调用USSD获取话费余额、套餐情况的请拿走。

代码如下：

package com.zongh.dbussd;

import android.annotation.TargetApi;
import android.app.Activity;
import android.content.Context;
import android.os.Build;
import android.os.Bundle;
import android.os.Handler;
import android.os.ResultReceiver;
import android.telecom.TelecomManager;
import android.telephony.PhoneStateListener;
import android.telephony.SubscriptionManager;
import android.telephony.TelephonyManager;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.EditText;
import android.widget.Switch;
import android.widget.Toast;

import android.support.design.widget.Snackbar;
import android.support.annotation.RequiresApi;

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

import static android.content.ContentValues.TAG;

interface UssdResultNotifiable {
    void notifyUssdResult(String request, String returnMessage, int resultCode);
}

public class HomeActivity extends Activity implements UssdResultNotifiable {

    USSDSessionHandler hdl;
    private TelephonyManager telephonyManager;
    private PhoneCallListener listener;
    private TelecomManager telecomManager;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_home);
    }

    public void onUssdSend(View view) {
        //USSDHandler callback = new USSDHandler(view);
        /* if (checkSelfPermission(Manifest.permission.CALL_PHONE) != PackageManager.PERMISSION_GRANTED) {
         *//*if(ActivityCompat.shouldShowRequestPermissionRationale(HomeActivity.this, Manifest.permission.CALL_PHONE))
                    {

                    }
                    else
                    {*//*
                        //ActivityCompat.requestPermissions(HomeActivity.this, new String[]{Manifest.permission.CALL_PHONE}, 0);
                   // }
                    Snackbar.make(view, "permissions were missing", Snackbar.LENGTH_LONG)
                            .setAction("Response", null).show();
                    return;
                }*/
        //HomeActivity.this.telephonyManager.sendUssdRequest("*#123*99#", callback, new Handler());

        hdl = new USSDSessionHandler(HomeActivity.this, HomeActivity.this);

        hdl.doSession(((EditText)this.findViewById(R.id.ussdText)).getText().toString());

    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
//        getMenuInflater().inflate(R.menu.menu_home, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
//        if (id == R.id.action_settings) {
//            return true;
//        }

        return super.onOptionsItemSelected(item);
    }

    public void toggleListener(View v) {
        if (((Switch) v).isChecked()) {
            this.listenForTelephony();
            Toast.makeText(this, "Listening for calls", Toast.LENGTH_LONG).show();
        } else {
            this.stopListeningForTelephony();
        }
    }

    private void listenForTelephony() {
        this.telephonyManager = (TelephonyManager) this.getSystemService(this.TELEPHONY_SERVICE);
        this.telecomManager = (TelecomManager) this.getSystemService(this.TELECOM_SERVICE);
        this.listener = new PhoneCallListener();
        telephonyManager.listen(listener, PhoneStateListener.LISTEN_CALL_STATE);
    }

    private void stopListeningForTelephony() {
        this.telephonyManager = null;
        this.telecomManager = null;
    }

    @Override
    public void notifyUssdResult(final String request, final String returnMessage, final int resultCode) {
        this.runOnUiThread(new Runnable() {
            @Override
            public void run() {
                Toast.makeText(HomeActivity.this, "Request was " + request + "\n response is " + returnMessage + "\n result code is " + resultCode, Toast.LENGTH_LONG).show();

            }
        });

    }

    class PhoneCallListener extends PhoneStateListener {
        @RequiresApi(api = Build.VERSION_CODES.M)
        @Override
        public void onCallStateChanged(int state, String incomingNumber) {

            switch (state) {
                case TelephonyManager.CALL_STATE_RINGING:
                    HomeActivity.this.telecomManager.acceptRingingCall();
                    break;
                case TelephonyManager.CALL_STATE_IDLE:
                    Toast.makeText(HomeActivity.this, "Call is no longer active...", Toast.LENGTH_LONG);
                    break;
            }
        }
    }

    @TargetApi(Build.VERSION_CODES.O)
    class USSDHandler extends TelephonyManager.UssdResponseCallback {

        View parent;

        USSDHandler(View v) {
            this.parent = v;
        }

        @Override
        public void onReceiveUssdResponse(TelephonyManager telephonyManager, String request, CharSequence response) {
            super.onReceiveUssdResponse(telephonyManager, request, response);
            Snackbar.make(this.parent, response, Snackbar.LENGTH_LONG)
                    .setAction("Response", null).show();
        }

        @Override
        public void onReceiveUssdResponseFailed(TelephonyManager telephonyManager, String request, int failureCode) {
            super.onReceiveUssdResponseFailed(telephonyManager, request, failureCode);
            Snackbar.make(this.parent, "error is " + failureCode + " for req " + request, Snackbar.LENGTH_LONG)
                    .setAction("Response", null).show();
        }
    }

}

class USSDSessionHandler {

    TelephonyManager tm;
    private UssdResultNotifiable client;
    private Method handleUssdRequest;
    private Object iTelephony;

    USSDSessionHandler(Context parent, UssdResultNotifiable client) {
        this.client = client;
        this.tm = (TelephonyManager) parent.getSystemService(Context.TELEPHONY_SERVICE);
        try {
            this.getUssdRequestMethod();
        } catch (Exception ex) {
            //log
        }

    }

    private void getUssdRequestMethod() throws ClassNotFoundException, NoSuchMethodException, InvocationTargetException, IllegalAccessException {
        if (tm != null) {
            Class telephonyManagerClass = Class.forName(tm.getClass().getName());
            if (telephonyManagerClass != null) {
                Method getITelephony = telephonyManagerClass.getDeclaredMethod("getITelephony");
                getITelephony.setAccessible(true);
                this.iTelephony = getITelephony.invoke(tm); // Get the internal ITelephony object
                Method[] methodList = iTelephony.getClass().getMethods();
                this.handleUssdRequest = null;
                /*
                 *  Somehow, the method wouldn't come up if I simply used:
                 *  iTelephony.getClass().getMethod('handleUssdRequest')
                 */

                for (Method _m : methodList)
                    if (_m.getName().equals("handleUssdRequest")) {
                        handleUssdRequest = _m;
                        break;
                    }
            }
        }
    }

    public void doSession(String ussdRequest) {
        try {

            if (handleUssdRequest != null) {
                handleUssdRequest.setAccessible(true);
                handleUssdRequest.invoke(iTelephony, SubscriptionManager.getDefaultSubscriptionId(), ussdRequest, new ResultReceiver(new Handler()) {

                    @Override
                    protected void onReceiveResult(int resultCode, Bundle ussdResponse) {
                        /*
                         * Usually you should the getParcelable() response to some Parcel
                         * child class but that's not possible here, since the "UssdResponse"
                         * class isn't in the SDK so we need to
                         * reflect again to get the result of getReturnMessage() and
                         * finally return that!
                         */

                        Object p = ussdResponse.getParcelable("USSD_RESPONSE");

                        if (p != null) {

                            Method[] methodList = p.getClass().getMethods();
                            for(Method m : methodList)
                            {
                                Log.i(TAG, "onReceiveResult: " + m.getName());
                            }
                            try {
                                CharSequence returnMessage = (CharSequence) p.getClass().getMethod("getReturnMessage").invoke(p);
                                CharSequence request = (CharSequence) p.getClass().getMethod("getUssdRequest").invoke(p);
                                USSDSessionHandler.this.client.notifyUssdResult("" + request, "" + returnMessage, resultCode); //they could be null
                            } catch (NoSuchMethodException | IllegalAccessException | InvocationTargetException e) {
                                e.printStackTrace();
                            }
                        }
                    }

                });
            }
        } catch (IllegalAccessException | InvocationTargetException e1) {
            e1.printStackTrace();
        }
    }
}

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".HomeActivity">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">

        <TextView
            android:id="@+id/textView"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="USSD Input"
            android:textSize="18sp" />

        <EditText
            android:id="@+id/ussdText"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:ems="10"
            android:inputType="textPersonName" />
    </LinearLayout>

    <Button
        android:id="@+id/button"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:onClick="onUssdSend"
        android:text="send" />
</LinearLayout>