CellTracker.java 文件源码

private void handlePhoneStateChange() {
    List<NeighboringCellInfo> neighboringCellInfo = tm.getNeighboringCellInfo();
    if (neighboringCellInfo == null || neighboringCellInfo.size() == 0) {
        return;
    }

    Log.i(TAG, mTAG + "NeighbouringCellInfo empty - event based polling succeeded!");
    tm.listen(phoneStatelistener, PhoneStateListener.LISTEN_NONE);
    if (neighboringCellInfo == null) {
        neighboringCellInfo = new ArrayList<>();
    }
    neighboringCellBlockingQueue.addAll(neighboringCellInfo);
}