private PowerManager.WakeLock mWakeLock;
 @Override
  protected void onCreate(Bundle icicle) {
    super.onCreate(icicle);
    //getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 
    //add keep inCallActivity keepScreenOn
    PowerManager powerManager= (PowerManager) getSystemService(Context.POWER_SERVICE);    
    mWakeLock = powerManager.newWakeLock(PowerManager.FULL_WAKE_LOCK, "keep_screen_on_tag");
  }
  @Override
  protected void onResume() {
    super.onResume();
    mWakeLock.acquire();
  }
  @Override
  protected void onDestroy() {
    super.onDestroy();
    mWakeLock.release();
  }

public void setCallState(PrimaryCallState primaryCallState) {
    this.primaryCallState = primaryCallState;
    if (DialerCall.State.ACTIVE == primaryCallState.state) {
        Log.e("InCallFragment", "sendBrocast Call.State.ACTIVE =" + primaryCallState.state);
        //cczheng add  , send broadcast when is active
        Intent broIntent = new Intent();
        broIntent.setAction("com.call.state.active");   
        context.sendBroadcast(broIntent);
        //cczheng add  , send broadcast when is active
    }
    updatePrimaryNameAndPhoto();
    updateBottomRow();
    updateTopRow();
  }

@Override
public void setCallState(
        int state,
        int videoState,
        int sessionModificationState,
        DisconnectCause disconnectCause,
        String connectionLabel,
        Drawable callStateIcon,
        String gatewayNumber,
        boolean isWifi,
        boolean isConference) {
    boolean isGatewayCall = !TextUtils.isEmpty(gatewayNumber);
    CallStateLabel callStateLabel = getCallStateLabelFromState(state, videoState,
            sessionModificationState, disconnectCause, connectionLabel, isGatewayCall, isWifi,
            isConference);
....
if (Call.State.ACTIVE == state) {
        Log.d(this, "sendBrocast Call.State.ACTIVE " + state);
        //cczheng add  , send broadcast when is active
        Intent broIntent=new Intent();
        broIntent.setAction("com.call.state.active");   
        getActivity().sendBroadcast(broIntent);
        if(CallUtils.isVideoCall(videoState)){
            //videoCall
            final View buttonsView=getView().findViewById(R.id.buttons_container);
            buttonsView.setBackgroundColor(Color.argb(0x99,0xff,0xff,0xff));
            videoFragment.setBGColor(Color.argb(0xff,0x00,0x00,0x00));
        }
    }
}