Android 监听去电接通状态，注意不是来电
又是一年回家时，订票难呀，难于上青天。
闲来无事，想写一个电话订票的软件，电话不通断线后自动重拔，在网上找了一些资源，发现对于来电状态还好，去电状态资源很少，无奈去看下Phone源码，总算找到一个方法，但是有局限性，即必须在源码下编译才行，并且要和系统签名一致才可使用。下面是具体代码
1.PhoneApp类通过CallManager去注册一个电话状态
public class SpeedService extends Service {private TelephonyManager telephonyManager;private String PhoneNumber;private int dialCount; private int hasdialCount;private Intent callIntent;private CallManager mCM; private boolean hasConnect=false; private boolean isUseCount=false;private static final int PHONE_STATE_CHANGED=102; private Vibrator mVibrate;private Handler mHandler=new Handler(){public void handleMessage(android.os.Message msg) {switch (msg.what) {case PHONE_STATE_CHANGED:updatePhoneSateChange();break;default:break;}};};@Overridepublic IBinder onBind(Intent intent) {// TODO Auto-generated method stubreturn null;}@Overridepublic void onCreate() {// TODO Auto-generated method stubsuper.onCreate(); mVibrate=(Vibrator)getSystemService(Context.VIBRATOR_SERVICE); telephonyManager=(TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE); mCM=PhoneApp.getInstance().mCM; mCM.registerForPreciseCallStateChanged(mHandler, PHONE_STATE_CHANGED, null); }@Overridepublic void onStart(Intent intent, int startId) {// TODO Auto-generated method stubsuper.onStart(intent, startId); hasConnect=false; isUseCount=false; hasdialCount=0;PhoneNumber=intent.getStringExtra("phone");dialCount=Integer.parseInt(intent.getStringExtra("count")); if(dialCount!=0){ isUseCount=true; }callIntent=new Intent(Intent.ACTION_CALL);callIntent.setData(Uri.parse("tel:"+PhoneNumber));callIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);call(); }private void call(){ if(isUseCount&&hasdialCount<=dialCount){ startActivity(callIntent); hasdialCount++; }else if(!isUseCount){ startActivity(callIntent); } } private void updatePhoneSateChange(){Call fgCall = mCM.getActiveFgCall();if (mCM.hasActiveRingingCall()) { fgCall = mCM.getFirstActiveRingingCall(); } final Call.State state = fgCall.getState(); switch (state) { case IDLE: if(!hasConnect){ call(); } break; case ACTIVE://去电接通 mVibrate.vibrate(1500); hasConnect=true; break; default: break; }} }; }下载地址：http://download.csdn.net/detail/androidchuxueze/5005416
代码必须在源码下编译，如果没手机系统签名，将无法安装