0
我希望條形碼掃描的結果能夠自動從MySQL獲取數據,而無需再次單擊按鈕。如何在不點擊按鈕的情況下從MySQL自動獲取數據到Android?
這是我點擊按鈕來獲取MySQL數據的代碼。如何在不再次點擊按鈕的情況下獲得相同的數據?
public class EditPerangkat extends AppCompatActivity implements View.OnClickListener {
private EditText editTextNoIT;
private Button buttonGet;
private TextView textViewResult;
private ProgressDialog loading;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.editperangkat);
Scan = (Button) findViewById(R.id.buttonScan);
buttonGet = (Button) findViewById(R.id.buttonGet);
textViewResult = (TextView) findViewById(R.id.textViewResult);
Scan.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
IntentIntegrator scanIntegrator = new IntentIntegrator(EditPerangkat.this);
scanIntegrator.initiateScan();
}
});
buttonGet.setOnClickListener(this);
}
private void getData() {
String it = editTextNoIT.getText().toString().trim();
if (it.equals("")) {
Toast.makeText(this, "Please input data", Toast.LENGTH_LONG).show();
return;
}
loading = ProgressDialog.show(this,"Please wait...","Fetching...",false,false);
String url = Config.URL_GET+editTextNoIT.getText().toString().trim();
StringRequest stringRequest = new StringRequest(url, new Response.Listener<String>() {
@Override
public void onResponse(String response) {
loading.dismiss();
showJSON(response);
}
},
new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Toast.makeText(EditPerangkat.this,error.getMessage().toString(),Toast.LENGTH_LONG).show();
}
});
RequestQueue requestQueue = Volley.newRequestQueue(this);
requestQueue.add(stringRequest);
}
public void showJSON(String response){
String jenisperangkat="";
String namaperangkat="";
String serialnumber= "";
try {
JSONObject jsonObject = new JSONObject(response);
JSONArray result = jsonObject.getJSONArray(Config.JSON_ARRAY);
JSONObject collegeData = result.getJSONObject(0);
jenisperangkat = collegeData.getString(Config.KEY_PER_JENISPERANGKAT);
namaperangkat = collegeData.getString(Config.KEY_PER_NAMAPERANGKAT);
serialnumber = collegeData.getString(Config.KEY_PER_SERIALNUMBER);
} catch (JSONException e) {
e.printStackTrace();
}
textViewResult.setText(jenisperangkat + "\n" + namaperangkat + "\n" + serialnumber);
}
@Override
public void onClick(View v) {
getData();
}