Android实现手机接通电话后振动提示的功能

 Process process; 
  InputStream inputstream; 
  BufferedReader bufferedreader; 
  try { 
   process = Runtime.getRuntime().exec("logcat -v time -b radio"); 
   inputstream = process.getInputStream(); 
   InputStreamReader inputstreamreader = new InputStreamReader( 
     inputstream); 
   bufferedreader = new BufferedReader(inputstreamreader); 
 String str = ""; 
while ((str = bufferedreader.readLine()) != null) { 
  log.i("mLogcat",str); 
} 
} catch (Exception e) { 
    
  } 

class TestThread implements Runnable { 
 //振动器 
 Vibrator mVibrator; 
 //电话服务 
 TelephonyManager telManager; 
 public TestThread(Vibrator mVibrator, TelephonyManager telManager) { 
  this.mVibrator = mVibrator; 
  this.telManager = telManager; 
 } 
 @Override 
 public void run() { 
  //获取当前话机状态 
  int callState = telManager.getCallState(); 
  Log.i("TestService", "开始.........." + Thread.currentThread().getName()); 
  //记录拨号开始时间 
  long threadStart = System.currentTimeMillis(); 
  Process process; 
  InputStream inputstream; 
  BufferedReader bufferedreader; 
  try { 
   process = Runtime.getRuntime().exec("logcat -v time -b radio"); 
   inputstream = process.getInputStream(); 
   InputStreamReader inputstreamreader = new InputStreamReader( 
     inputstream); 
   bufferedreader = new BufferedReader(inputstreamreader); 
   String str = ""; 
   long dialingStart = 0; 
   boolean enableVibrator = false; 
   boolean isAlert = false; 
   while ((str = bufferedreader.readLine()) != null) { 
    //如果话机状态从摘机变为空闲,销毁线程 
    if (callState == TelephonyManager.CALL_STATE_OFFHOOK 
      && telManager.getCallState() == TelephonyManager.CALL_STATE_IDLE) { 
     break; 
    } 
    // 线程运行5分钟自动销毁 
    if (System.currentTimeMillis() - threadStart > 300000) { 
     break; 
    } 
    Log.i("TestService", Thread.currentThread().getName() + ":" 
      + str); 
    // 记录GSM状态DIALING 
    if (str.contains("GET_CURRENT_CALLS") 
      && str.contains("DIALING")) { 
     // 当DIALING开始并且已经经过ALERTING或者首次DIALING 
     if (!isAlert || dialingStart == 0) { 
      //记录DIALING状态产生时间 
      dialingStart = System.currentTimeMillis(); 
      isAlert = false; 
     } 
     continue; 
    } 
    if (str.contains("GET_CURRENT_CALLS") 
      && str.contains("ALERTING")&&!enableVibrator) { 
      
     long temp = System.currentTimeMillis() - dialingStart; 
     isAlert = true; 
     //这个是关键,当第一次DIALING状态的时间,与当前的ALERTING间隔时间在1.5秒以上并且在20秒以内的话 
     //那么认为下次的ACTIVE状态为通话接通. 
     if (temp > 1500 && temp <20000) { 
      enableVibrator = true; 
      Log.i("TestService", "间隔时间....." + temp + "....." 
        + Thread.currentThread().getName()); 
     } 
     continue; 
    } 
    if (str.contains("GET_CURRENT_CALLS") && str.contains("ACTIVE") 
      && enableVibrator) { 
     mVibrator.vibrate(100); 
     enableVibrator = false; 
     break; 
    } 
   } 
   Log.i("TestService", "结束.........." 
     + Thread.currentThread().getName()); 
  } catch (Exception e) { 
   // TODO: handle exception 
  } 
 } 
}