Setting APN

README.md

Configurando APN no android

Para adicionar, remover e setar APNs, você precisa usar os ContentResolver para gerenciar a base de APNs no SO.

Fizemos uma abstração do seu uso com os snippets abaixo e, para usá-lo você precisa fazer como exemplo a seguir:

ApnHandler apnHandler = new ApnHandler(context);
ApnInfo apnInfo = new ApnInfo("OPERADORA", "operadora.com.br", "user", "password"))
boolean success = apnHandler.configureApn(apnInfo);

ApnHandler.java

public class ApnHandler {

    private final static Uri APN_LIST_URI = Uri.parse("content://telephony/carriers");
    private final static Uri PREFERRED_APN_URI = Uri.parse("content://telephony/carriers/preferapn");

    private Context context;

    public ApnHandler(Context context) {
        this.context = context;
    }

    public boolean configureApn(ApnInfo apnInfo) {
        boolean ret;

        ContentValues contentValues;

        try {
            contentValues = NetworkUtils.getContentValuesForApnInfo(context, apnInfo);
        } catch (SimCardNotFoundException e) {
            e.printStackTrace();
            return false;
        }

        ret = findApn(apnInfo.getApn());
        if (!ret) {
            int apnId = addNewApn(context, contentValues);
            if (apnId != -1) {
                ret = setApn(apnId) == 1;
            }
        }

        return ret;
    }

    private int addNewApn(Context context, ContentValues contentValues) {

        int id = -1;

        ContentResolver contentResolver = context.getContentResolver();

        Uri newUri = contentResolver.insert(APN_LIST_URI, contentValues);
        Cursor c = null;
        if (newUri != null) {
            c = contentResolver.query(newUri, null, null, null, null);
            int idIndex = c.getColumnIndex("_id");
            c.moveToFirst();
            id = c.getShort(idIndex);
        }
        if (c != null) {
            c.close();
        }
        return id;
    }

    private int setApn(long id) {
        ContentResolver contentResolver = context.getContentResolver();
        ContentValues contentValues = new ContentValues();
        contentValues.put("apn_id", id);
        return contentResolver.update(PREFERRED_APN_URI, contentValues, null, null);
    }

    private boolean findApn(String name) {
        boolean found = false;
        String columns[] = new String[] { "_id", "apn"};
        String where = "apn = ?";
        String wargs[] = new String[] {name};
        String sortOrder = null;
        Cursor cur = context.getContentResolver().query(APN_LIST_URI, columns, where, wargs, sortOrder);
        if (cur != null) {
            if (cur.moveToFirst()) {
                Log.d("ApnHandler", "APN " + cur.getString(1));
                found = true;
                setApn(cur.getLong(0));
            }
            cur.close();
        }
        return found;
    }
}

ApnInfo.java

public class ApnInfo {
    private String carrierName;
    private String apn;
    private String user;
    private String password;
    
    public ApnInfo(String carrierName, String apn, String user, String password) {
        this.carrierName = carrierName;
        this.apn = apn;
        this.user = user;
        this.password = password;
    }
}