CellLocationController.java 文件源码

/**
 * Returns all observed cell information from all radios on the device including the primary and
 * neighboring cells. Calling this method does not trigger a call to onCellInfoChanged(), or change
 * the rate at which onCellInfoChanged() is called.
 */
private void getAllCellInfos(){
    if(_telephonyManager != null && Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
        final List<CellInfo> cellInfos = _telephonyManager.getAllCellInfo();
        processCellInfos(cellInfos);
    }
    else {
        Log.w(TAG, "Unable to provide cell info due to version restriction");
    }
}