Blue - Bars - Códigos de barra

Jesús Hernández Paredes - Vintapps

Iqukethe izikhangiso

Mayelana nalolu hlelo lokusebenza

Xhuma isithwebuli sakho sebhakhodi ye-Bluetooth kudivayisi yakho usebenzisa iphrofayela ye-spp, bese uthumela amabhakhodi athunjiwe ku-Blue - Bars, usebenzisa iphrothokholi ye-RFCOMM. Okuluhlaza okwesibhakabhaka - Amabha azobe ephethe ukwazisa ukuthwebula okwenziwe kuzo zonke izinhlelo zokusebenza ezibhaliswe emicimbini yakho.

Isebenza kanjani ?

Okuluhlaza okwesibhakabhaka - Amabha asebenza kusetshenziswa isevisi ezimele eyivumela ukuthi isebenze ngemuva, kuyilapho uhlelo olutholayo luboniswa ngaso sonke isikhathi esikrinini se-smartphone yethu.

Imicimbi esakazwa iBlue - Amabha ayi-BroadcastReceivers alula asakazwa kunoma yiluphi uhlelo lokusebenza olubhalisele kuwo. Khumbula ukuthi le micimbi izoba ngaphansi kokukhishwa kwe-Blue - Bars, ngakho-ke, izoyeka ukusakazwa uma isicelo sesivalwe ngokuphelele.

Umhlahlandlela osheshayo

- Vula Okuluhlaza okwesibhakabhaka - Amabha bese uvule isithwebuli sakho sebhakhodi kumodi ye-spp.

- Yamukela izimvume ze-Bluetooth zohlelo lokusebenza ukuze ulwenze lusebenze.

- Khetha isithwebuli sakho se-bluetooth ohlwini lwedivayisi yokumatanisa

- Esikrinini esilandelayo cindezela okuthi dlala noma zidlale ngokuzenzakalelayo bese ulinda uxhumano.

- Qala ukuskena amabhakhodi.

I-BroadcastReceiver isakazwa ngabakwaBlue - Amabha

Konke Ukusakazwa okukhishwe nguBlue - Amabha aboniswa esikrinini sohlelo lokusebenza lapho nje esakazwa.

ACTION_BARCODE_SCANNER_CONNECTING - Uma uhlelo lokusebenza luzama ukuxhuma kudivayisi yakho.

ACTION_BARCODE_SCANNER_CONNECTED - Uma idivayisi isixhunyiwe.

ACTION_BARCODE_SCANNER_DISCONNECTED - Uma idivayisi inqanyulwa.

ACTION_BARCODE_SCANNER_CONNECTION_ERROR - Uma kwenzeka iphutha lokuxhuma noma idivayisi inqamuka kungazelelwe. Lo mcimbi uthola okwengeziwe - EXTRA_ERROR_MESSAGE - Ngombhalo onolwazi mayelana nephutha lenzekile.

ACTION_BARCODE_SCANNER_RECONNECTING - Lo mcimbi ukhishwa uma uhlelo lokusebenza luzenzakalela. Ixoshwe ngemva komzamo ngamunye ohlulekile wokuxhuma.

ACTION_BARCODE_SCANNING_START - Uma uhlelo lokusebenza luthole ukuthwebula okuvela kusikena esixhunyiwe.

ACTION_BARCODE_SCANNING - Uma ikhodi etholiwe isicutshunguliwe futhi isilungele ukwaziswa. Lo mcimbi uthola okungeziwe okulandelayo:

EXTRA_BARCODE - Lokho kugcina ngaphakathi kwekhodi ethathwe yisithwebuli.

EXTRA_BARCODE_FORMAT - Okuluhlaza okwesibhakabhaka - Amabha ayakwazi, okwamanje, ukuhlonza ikhodi ethathwe ngamafomethi alandelayo, EAN 8, EAN 13, UPCA, UPCE, CODE 39, CODE 93, CODE 128 kanye ne-QR.

ACTION_BITMAP_BARCODE_CREATED - Okuluhlaza okwesibhakabhaka - Amabha akhiqiza ekuthwebuleni ngakunye isithombe sebhakhodi ethwebuliwe, kucatshangelwa amafomethi amukelwa uhlelo lokusebenza. Lesi sithombe sizotholwa ngokulandelayo okwengeziwe;

EXTRA_BITMAP_BARCODE - Isithombe esitholiwe sizoba yi-Compressed BitMap kuyunithi yezinhlamvu eziyisisekelo ezingu-64. Ukuze usibuyise, kufanele sincishiswe kusetshenziswa, isibonelo, umsebenzi olandelayo obhalwe nge-Java.

I-Bitmap yomphakathi I-StringToBitMap(Intambo ifakwe ikhodi)
{
zama {
ibhayithi [] myByte = Base64.decode( encoded, Base64.DEFAULT );

Bitmap bitmap = BitmapFactory.decodeByteArray(myByte , 0,
myByte.length);

returnbitmap;

} bamba (Ngaphandle kwe-e) {

e.getMessage();

buyisela null;
}
}

I-ROADMAP

- Dala isikrini sokumisa sohlelo lokusebenza.

- Nikeza ithuba lokuthumela amakhodi askeniwe kwamanye amadivaysi afana namakhompyutha (Usebenzisa uxhumano lwe-TCP) amanye ama-smartphone (Usebenzisa i-Bluetooth) noma kuseva (Usebenzisa imodeli elula yeklayenti-server)

- Dala uhlu ngamabhakhodi askeniwe, futhi uwathumele ngesikhathi esisodwa usebenzisa imicimbi yokusakaza kanye nokuxhumana okuchazwe ephuzwini eledlule.

Zama lolu hlelo lokusebenza nge-kducidad ukuze ubone ukuthi lusebenza kanjani ngolunye uhlelo lokusebenza.
Xhuma i-BlueBars, qala i-kducity bese uzama ukuskena amakhodi kokuthi "Dala imikhiqizo yokuhlela"

Yini entsha

La primera versión de este pequeño proyecto, cubre los aspectos esenciales de la misma:
- Conectar con un escáner de códigos de barra Bluetooth.
- Recoger los eventos de captura realizados por el dispositivo.
- Enviarlos mediante eventos Broadcast a todas las apps subscritas a ellos.