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>