android.telephony.CellInfoGsm#getCellIdentity ( )源码实例Demo

/**
 * Converts CellInfoGsm into JSON
 * @param cellInfo CellInfoGsm
 * @return JSON
 */
public static String cellInfoGSMJSON(CellInfoGsm cellInfo, boolean returnSignalStrength){

    final Calendar calendar = Calendar.getInstance();
    final JSONObject json = new JSONObject();

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2 && cellInfo != null) {
        try {
            json.put("provider", CELLINFO_PROVIDER);
            json.put("type", GSM);
            json.put("timestamp", calendar.getTimeInMillis());

            final CellIdentityGsm identityGsm = cellInfo.getCellIdentity();

            json.put("cid", identityGsm.getCid());
            json.put("lac", identityGsm.getLac());
            json.put("mcc", identityGsm.getMcc());
            json.put("mnc", identityGsm.getMnc());

            if (returnSignalStrength){
                final JSONObject jsonSignalStrength = new JSONObject();
                final CellSignalStrengthGsm cellSignalStrengthGsm = cellInfo.getCellSignalStrength();
                jsonSignalStrength.put("asuLevel", cellSignalStrengthGsm.getAsuLevel());
                jsonSignalStrength.put("dbm", cellSignalStrengthGsm.getDbm());
                jsonSignalStrength.put("level", cellSignalStrengthGsm.getLevel());

                json.put("cellSignalStrengthGsm", jsonSignalStrength);
            }
        }
        catch(JSONException exc) {
            logJSONException(exc);
        }
    }
    return json.toString();
}
 

@TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
private void startScan() {
	
	logMessage("starting tower scan... ");
	Scan scan = new Scan();

	// TODO: Get location from user?
	scan.setLocation(lastScanName);

	// TODO: use actual GPS Coordinates
	scan.setLatitude(lastScanLat);
	scan.setLongitude(lastScanLon);

	long scan_id = db.createScan(scan);

	List<CellInfo> cellInfos = (List<CellInfo>) this.telephonyManager
			.getAllCellInfo();

	// TODO: better error handling of null cellinfos
	if (cellInfos != null) {
		for (CellInfo cellInfo : cellInfos) {

			if (cellInfo instanceof CellInfoGsm) {
				CellInfoGsm cellInfoGsm = (CellInfoGsm) cellInfo;

				CellIdentityGsm cellIdentity = cellInfoGsm
						.getCellIdentity();
				CellSignalStrengthGsm cellSignalStrengthGsm = cellInfoGsm
						.getCellSignalStrength();

				int dbmLevel = cellSignalStrengthGsm.getDbm();
				
				com.spideyapp.sqlite.model.CellInfo cell = new com.spideyapp.sqlite.model.CellInfo(
						cellIdentity.getCid(), cellIdentity.getLac(),
						cellIdentity.getMcc(), cellIdentity.getMnc(),dbmLevel);

				db.createCell(cell, scan_id);

				shareCellInfo (cell);
				
			}
		}
	}

}
 

/**
 * Adds or updates a cell tower.
 * <p>
 * If the cell tower is already in the list, its data is updated; if not, a
 * new entry is created.
 * <p>
 * This method will set the cell's identity data, its signal strength and
 * whether it is the currently serving cell. If the API level is 18 or 
 * higher, it will also set the generation.
 * @return The new or updated entry.
 */
@TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
public CellTowerGsm update(CellInfoGsm cell) {
	if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN_MR1) 
		return null;
	CellIdentityGsm cid = cell.getCellIdentity();
	CellTowerGsm result = null;
	CellTowerGsm cand = this.get(cid.getMcc(), cid.getMnc(), cid.getLac(), cid.getCid());
	if ((cand != null) && CellTower.matches(cid.getPsc(), cand.getPsc()))
		result = cand;
	if (result == null) {
		cand = this.get(cid.getPsc());
		if ((cand != null)
				&& ((cid.getMcc() == Integer.MAX_VALUE) || CellTower.matches(cid.getMcc(), cand.getMcc()))
				&& ((cid.getMnc() == Integer.MAX_VALUE) || CellTower.matches(cid.getMnc(), cand.getMnc()))
				&& ((cid.getLac() == Integer.MAX_VALUE) || CellTower.matches(cid.getLac(), cand.getLac()))
				&& ((cid.getCid() == Integer.MAX_VALUE) ||CellTower.matches(cid.getCid(), cand.getCid())))
			result = cand;
	}
	if (result == null)
		result = new CellTowerGsm(cid.getMcc(), cid.getMnc(), cid.getLac(), cid.getCid(), cid.getPsc());
	if (result.getMcc() == CellTower.UNKNOWN)
		result.setMcc(cid.getMcc());
	if (result.getMnc() == CellTower.UNKNOWN)
		result.setMnc(cid.getMnc());
	if (result.getLac() == CellTower.UNKNOWN)
		result.setLac(cid.getLac());
	if (result.getCid() == CellTower.UNKNOWN)
		result.setCid(cid.getCid());
	if (result.getPsc() == CellTower.UNKNOWN)
		result.setPsc(cid.getPsc());
	this.put(result.getText(), result);
	this.put(result.getAltText(), result);
	result.setCellInfo(true);
	result.setDbm(cell.getCellSignalStrength().getDbm());
	if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2)
		result.setGeneration(2);
	result.setServing(cell.isRegistered());
	if ((result.getText() == null) && (result.getAltText() == null))
		Log.d(this.getClass().getSimpleName(), String.format("Added %d G cell with no data from CellInfoGsm", result.getGeneration()));
	return result;
}