因为Android2.3以上增加了对permission android.permission.MODIFY_PHONE_STATE 的限制，2.3之前的通过反射机制调用ITelephone的能力的做法已经不适用，所以可以用伪造广播的方式来接听电话
package com.demo.launcher;import java.lang.reflect.InvocationTargetException;import java.lang.reflect.Method;import android.content.Context;import android.content.Intent;import android.media.AudioManager;import .Uri;import android.telephony.TelephonyManager;import android.text.TextUtils;import android.view.KeyEvent;public class PhoneUtils {public static String TAG = PhoneUtils.class.getSimpleName();public static void endCall(Context context) {try {Object telephonyObject = getTelephonyObject(context);if (null != telephonyObject) {Class telephonyClass = telephonyObject.getClass();Method endCallMethod = telephonyClass.getMethod("endCall");endCallMethod.setAccessible(true);endCallMethod.invoke(telephonyObject);}} catch (SecurityException e) {e.printStackTrace();} catch (NoSuchMethodException e) {e.printStackTrace();} catch (IllegalArgumentException e) {e.printStackTrace();} catch (IllegalAccessException e) {e.printStackTrace();} catch (InvocationTargetException e) {e.printStackTrace();}}private static Object getTelephonyObject(Context context) {Object telephonyObject = null;try {// 初始化iTelephonyTelephonyManager telephonyManager = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);// Will be used to invoke hidden methods with reflection// Get the current object implementing ITelephony interfaceClass telManager = telephonyManager.getClass();Method getITelephony = telManager.getDeclaredMethod("getITelephony");getITelephony.setAccessible(true);telephonyObject = getITelephony.invoke(telephonyManager);} catch (SecurityException e) {e.printStackTrace();} catch (NoSuchMethodException e) {e.printStackTrace();} catch (IllegalArgumentException e) {e.printStackTrace();} catch (IllegalAccessException e) {e.printStackTrace();} catch (InvocationTargetException e) {e.printStackTrace();}return telephonyObject;}/*** 通过反射调用的方法，接听电话，该方法只在android 2.3之前的系统上有效。* @param context*/private static void answerRingingCallWithReflect(Context context) {try {Object telephonyObject = getTelephonyObject(context);if (null != telephonyObject) {Class telephonyClass = telephonyObject.getClass();Method endCallMethod = telephonyClass.getMethod("answerRingingCall");endCallMethod.setAccessible(true);endCallMethod.invoke(telephonyObject);// ITelephony iTelephony = (ITelephony) telephonyObject;// iTelephony.answerRingingCall();}} catch (SecurityException e) {e.printStackTrace();} catch (IllegalArgumentException e) {e.printStackTrace();} catch (IllegalAccessException e) {e.printStackTrace();} catch (InvocationTargetException e) {e.printStackTrace();} catch (NoSuchMethodException e) {e.printStackTrace();}}/*** 伪造一个有线耳机插入，并按接听键的广播，让系统开始接听电话。* @param context*/private static void answerRingingCallWithBroadcast(Context context){AudioManager localAudioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE);//判断是否插上了耳机boolean isWiredHeadsetOn = localAudioManager.isWiredHeadsetOn();if (!isWiredHeadsetOn) {Intent headsetPluggedIntent = new Intent(Intent.ACTION_HEADSET_PLUG);headsetPluggedIntent.putExtra("state", 1);headsetPluggedIntent.putExtra("microphone", 0);headsetPluggedIntent.putExtra("name", "");context.sendBroadcast(headsetPluggedIntent);Intent meidaButtonIntent = new Intent(Intent.ACTION_MEDIA_BUTTON);KeyEvent keyEvent = new KeyEvent(KeyEvent.ACTION_UP, KeyEvent.KEYCODE_HEADSETHOOK);meidaButtonIntent.putExtra(Intent.EXTRA_KEY_EVENT,keyEvent);context.sendOrderedBroadcast(meidaButtonIntent, null);Intent headsetUnpluggedIntent = new Intent(Intent.ACTION_HEADSET_PLUG);headsetUnpluggedIntent.putExtra("state", 0);headsetUnpluggedIntent.putExtra("microphone", 0);headsetUnpluggedIntent.putExtra("name", "");context.sendBroadcast(headsetUnpluggedIntent);} else {Intent meidaButtonIntent = new Intent(Intent.ACTION_MEDIA_BUTTON);KeyEvent keyEvent = new KeyEvent(KeyEvent.ACTION_UP, KeyEvent.KEYCODE_HEADSETHOOK);meidaButtonIntent.putExtra(Intent.EXTRA_KEY_EVENT,keyEvent);context.sendOrderedBroadcast(meidaButtonIntent, null);}}/*** * @param context*/public static void answerRingingCall(Context context) {if (BaseActivity.isGingerbreadOrlater()) {answerRingingCallWithBroadcast(context);} else {answerRingingCallWithReflect(context);}}/*** * @param context* @param phoneNumber*/public static void callPhone(Context context, String phoneNumber) {if(!TextUtils.isEmpty(phoneNumber)){try {Intent callIntent = new Intent(Intent.ACTION_CALL, Uri.parse("tel:"+ phoneNumber));context.startActivity(callIntent);} catch (Exception e) {e.printStackTrace();}}}/*** * @param context* @param phoneNumber*/public static void dialPhone(Context context, String phoneNumber){if(!TextUtils.isEmpty(phoneNumber)){try {Intent callIntent = new Intent(Intent.ACTION_DIAL, Uri.parse("tel:"+ phoneNumber));context.startActivity(callIntent);} catch (Exception e) {e.printStackTrace();}}}}
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