添加权限

<uses-permission android:name="android.permission.CALL_PHONE"/>

<uses-permission android:name="android.permission.MODIFY_PHONE_STATE"/>

main.xml

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    androidrientation="vertical" android:layout_width="fill_parent"

    android:layout_height="fill_parent">

    <RadioGroup android:layout_height="wrap_content"

        android:layout_width="fill_parent" android:id="@+id/rGrpSelect">

        <RadioButton android:layout_height="wrap_content"

            android:layout_width="fill_parent" android:id="@+id/rbtnAutoAccept"

            android:text="所有来电自动接听"></RadioButton>

        <RadioButton android:layout_height="wrap_content"

            android:layout_width="fill_parent" android:id="@+id/rbtnAutoReject"

            android:text="所有来电自动挂断"></RadioButton>

    </RadioGroup>

    <ToggleButton android:layout_height="wrap_content"

        android:layout_width="fill_parent" android:id="@+id/tbtnRadioSwitch"

        android:textOn="Radio已经启动" android:textOff="Radio已经关闭"

        android:textSize="24dip" android:textStyle="normal"></ToggleButton>

    <ToggleButton android:layout_height="wrap_content"

        android:layout_width="fill_parent" android:id="@+id/tbtnDataConn"

        android:textSize="24dip" android:textStyle="normal" android:textOn="允许数据连接"

        android:textOff="禁止数据连接"></ToggleButton>

</LinearLayout>  

PhoneUtils.java是手机功能类，从TelephonyManager中实例化ITelephony并返回，源码如下：

package com.testTelephony;  

import java.lang.reflect.Field;

import java.lang.reflect.Method;

import com.android.internal.telephony.ITelephony;

import android.telephony.TelephonyManager;

import android.util.Log;  

public class PhoneUtils {

    /**

     * 从TelephonyManager中实例化ITelephony，并返回

     */

    static public ITelephony getITelephony(TelephonyManager telMgr) throws Exception {

        Method getITelephonyMethod = telMgr.getClass().getDeclaredMethod("getITelephony");

        getITelephonyMethod.setAccessible(true);//私有化函数也能使用

        return (ITelephony)getITelephonyMethod.invoke(telMgr);

    }  

    static public void printAllInform(Class clsShow) {

        try {

            // 取得所有方法

            Method[] hideMethod = clsShow.getDeclaredMethods();

            int i = 0;

            for (; i < hideMethod.length; i++) {

                Log.e("method name", hideMethod.getName());

            }

            // 取得所有常量

            Field[] allFields = clsShow.getFields();

            for (i = 0; i < allFields.length; i++) {

                Log.e("Field name", allFields.getName());

            }

        } catch (SecurityException e) {

            // throw new RuntimeException(e.getMessage());

            e.printStackTrace();

        } catch (IllegalArgumentException e) {

            // throw new RuntimeException(e.getMessage());

            e.printStackTrace();

        } catch (Exception e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

        }

    }

}

testTelephony.java是主类，使用PhoneStateListener监听通话状态，以及实现上述4种电话控制功能，源码如下：

package com.testTelephony;  

import android.app.Activity;

import android.os.Bundle;

import android.telephony.PhoneStateListener;

import android.telephony.TelephonyManager;

import android.util.Log;

import android.view.View;

import android.widget.RadioGroup;

import android.widget.ToggleButton;  

public class testTelephony extends Activity {

    /** Called when the activity is first created. */

    RadioGroup rg;//来电操作单选框

    ToggleButton tbtnRadioSwitch;//Radio开关

    ToggleButton tbtnDataConn;//数据连接的开关

    TelephonyManager telMgr;

    CallStateListener stateListner;

    int checkedId=0;

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.main);  

        telMgr= (TelephonyManager)getSystemService(TELEPHONY_SERVICE);

        telMgr.listen(new CallStateListener(), CallStateListener.LISTEN_CALL_STATE);  

        PhoneUtils.printAllInform(TelephonyManager.class);  

        rg = (RadioGroup)findViewById(R.id.rGrpSelect);

        rg.setOnCheckedChangeListener(new CheckEvent());

        tbtnRadioSwitch=(ToggleButton)this.findViewById(R.id.tbtnRadioSwitch);

        tbtnRadioSwitch.setOnClickListener(new ClickEvent());

        try {

            tbtnRadioSwitch.setChecked(PhoneUtils.getITelephony(telMgr).isRadioOn());

        }  catch (Exception e) {

            Log.e("error",e.getMessage());

        }

        tbtnDataConn=(ToggleButton)this.findViewById(R.id.tbtnDataConn);

        tbtnDataConn.setOnClickListener(new ClickEvent());

        try {

            tbtnDataConn.setChecked(PhoneUtils.getITelephony(telMgr).isDataConnectivityPossible());

        }  catch (Exception e) {

            Log.e("error",e.getMessage());

        }

    }  

    /**

     * 来电时的操作

     * @author GV

     *

     */

    public class CheckEvent implements RadioGroup.OnCheckedChangeListener{  

        @Override

        public void onCheckedChanged(RadioGroup group, int checkedId) {

            testTelephony.this.checkedId=checkedId;

        }

    }  

    /**

     * Radio和数据连接的开关

     * @author GV

     *

     */

    public class ClickEvent implements View.OnClickListener{  

        @Override

        public void onClick(View v) {

            if (v == tbtnRadioSwitch) {

                try {

                    PhoneUtils.getITelephony(telMgr).setRadio(tbtnRadioSwitch.isChecked());

                } catch (Exception e) {

                    Log.e("error", e.getMessage());

                }

            }

            else if(v==tbtnDataConn){

                try {

                    if(tbtnDataConn.isChecked())

                        PhoneUtils.getITelephony(telMgr).enableDataConnectivity();

                    else if(!tbtnDataConn.isChecked())

                        PhoneUtils.getITelephony(telMgr).disableDataConnectivity();

                } catch (Exception e) {

                    Log.e("error", e.getMessage());

                }

            }

        }

    }  

    /**

     * 监视电话状态

     * @author GV

     *

     */

    public class CallStateListener extends PhoneStateListener {

        @Override

        public void onCallStateChanged(int state, String incomingNumber) {

            if(state==TelephonyManager.CALL_STATE_IDLE)//挂断

            {

                Log.e("IDLE",incomingNumber);

            }

            else if(state==TelephonyManager.CALL_STATE_OFFHOOK)//接听

            {

                Log.e("OFFHOOK",incomingNumber);

            }

            else if(state==TelephonyManager.CALL_STATE_RINGING)//来电

            {

                if(testTelephony.this.checkedId==R.id.rbtnAutoAccept)

                {

                    try {

                        //需要<uses-permission android:name="android.permission.MODIFY_PHONE_STATE" />

                        PhoneUtils.getITelephony(telMgr).silenceRinger();//静铃

                        PhoneUtils.getITelephony(telMgr).answerRingingCall();//自动接听  

                    } catch (Exception e) {

                        Log.e("error",e.getMessage());

                    }

                }

                else if(testTelephony.this.checkedId==R.id.rbtnAutoReject)

                {

                    try {

                        PhoneUtils.getITelephony(telMgr).endCall();//挂断

                        PhoneUtils.getITelephony(telMgr).cancelMissedCallsNotification();//取消未接显示

                    } catch (Exception e) {

                        Log.e("error",e.getMessage());

                    }

                }

            }

            super.onCallStateChanged(state, incomingNumber);

        }

    }

}