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Hier habe ich bereits Daten aus MySQL DB abgerufen und diese Daten zeigt in den Spinner Jetzt ist das Problem, ich möchte Spinner ausgewählten Artikel in MySQL-Datenbank mit verschiedenen Tabelle speichern, das Element, das ich aus Spinner auswählen es in der Datenbank speichern soll, Wie kann ich das machen? Indem ich PHP mysql verwende, füge ich Datensatz in Spinner ein und ich möchte die Aufzeichnungen der Registertabelle mit Spinner vorgewähltem Einzelteil aktualisieren. Kann ich die Registertabelle mit Spinner vorgewählten Gegenstandswerten aktualisieren? Bitte schlage mich vor.Wie Spinner ausgewählten Element in mysql db speichern?
Java-Datei
public class MainActivity_d3 extends AppCompatActivity implements AdapterView.OnItemSelectedListener{
//Declaring an Spinner
private Spinner spinner2, spinner1;
private String str_spinner1, str_spinner2, s_name, s_course;
//An ArrayList for Spinner Items
private ArrayList<String> students1;
private ArrayList<String> students2;
Button mBtnSave;
//JSON Array
private JSONArray result1, result2, result;
//TextViews to display details
private TextView textViewName1;
private TextView textViewName2;
private TextView textViewCourse;
private TextView textViewSession;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.mainactivity_d1);
//Initializing the ArrayList
students1 = new ArrayList<String>();
students2 = new ArrayList<String>();
//Initializing Spinner
//Adding an Item Selected Listener to our Spinner
//As we have implemented the class Spinner.OnItemSelectedListener to this class iteself we are passing this to setOnItemSelectedListener
spinner1 = (Spinner) findViewById(R.id.spinner1);
spinner2 = (Spinner) findViewById(R.id.spinner2);
spinner1.setOnItemSelectedListener(this);
spinner2.setOnItemSelectedListener(this);
mBtnSave = (Button) findViewById(R.id.button2);
mBtnSave.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
submitForm();
}
});
//Initializing TextViews
textViewName1 = (TextView) findViewById(R.id.textViewName1);
textViewName2 = (TextView) findViewById(R.id.textViewName2);
// textViewCourse = (TextView) findViewById(R.id.textViewCourse);
// textViewSession = (TextView) findViewById(R.id.textViewSession);
//This method will fetch the data from the URL
getData1();
getData2();
}
private void submitForm() {
// Submit your form here. your form is valid
//Toast.makeText(this, "Submitting form...", Toast.LENGTH_LONG).show();
s_name = spinner1.getSelectedItem().toString();
s_course = spinner2.getSelectedItem().toString();
Toast.makeText(this, "Signing up...", Toast.LENGTH_SHORT).show();
new InsertActivity(this).execute(s_name, s_course);
}
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
/*if(spinner1.getId()==R.id.spinner1) {
textViewName1.setText(getName(position));
}
else if(spinner2.getId()==R.id.spinner2)
{
textViewName2.setText(getCourse(position));
}
/* switch (view.getId()){
case R.id.spinner1:
getData1();
break;
case R.id.spinner2:
getData2();
break;
}*/
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
}
/* private String getName(int position){
String name="";
try {
//Getting object of given index
JSONObject json = result.getJSONObject(position);
//Fetching name from that object
name = json.getString(Config.TAG_NAME);
} catch (JSONException e) {
e.printStackTrace();
}
//Returning the name
return name;
}
private String getCourse(int position){
String course="";
try {
JSONObject json = result.getJSONObject(position);
course = json.getString(Config.TAG_COURSE);
} catch (JSONException e) {
e.printStackTrace();
}
return course;
}*/
private void getData1() {
//Creating a string request
StringRequest stringRequest1 = new StringRequest(Config.DATA_URL1,
new Response.Listener<String>() {
@Override
public void onResponse(String response1) {
JSONObject j1 = null;
try {
//Parsing the fetched Json String to JSON Object
j1 = new JSONObject(response1);
//Storing the Array of JSON String to our JSON Array
result1 = j1.getJSONArray(Config.JSON_ARRAY1);
//Calling method getStudents to get the students from the JSON Array
getStudents1(result1);
} catch (JSONException e) {
e.printStackTrace();
}
}
},
new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error1) {
}
});
//Creating a request queue
RequestQueue requestQueue1 = Volley.newRequestQueue(this);
//Adding request to the queue
requestQueue1.add(stringRequest1);
}
private void getStudents1(JSONArray j1) {
//Traversing through all the items in the json array
for (int i = 0; i < j1.length(); i++) {
try {
//Getting json object
JSONObject json1 = j1.getJSONObject(i);
//Adding the name of the student to array list
students1.add(json1.getString(Config.TAG_COURSE));
} catch (JSONException e) {
e.printStackTrace();
}
}
//Setting adapter to show the items in the spinner
spinner1.setAdapter(new ArrayAdapter<String>(MainActivity_d3.this, android.R.layout.simple_spinner_dropdown_item, students1));
}
//Initializing TextViews
// textViewCourse = (TextView) findViewById(R.id.textViewCourse);
// textViewSession = (TextView) findViewById(R.id.textViewSession);
//This method will fetch the data from the URL
private void getData2() {
//Creating a string request
StringRequest stringRequest2 = new StringRequest(Config.DATA_URL2,
new Response.Listener<String>() {
@Override
public void onResponse(String response2) {
JSONObject j2 = null;
try {
//Parsing the fetched Json String to JSON Object
j2 = new JSONObject(response2);
//Storing the Array of JSON String to our JSON Array
result = j2.getJSONArray(Config.JSON_ARRAY);
//Calling method getStudents to get the students from the JSON Array
getStudents2(result);
} catch (JSONException e) {
e.printStackTrace();
}
}
},
new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error1) {
}
});
//Creating a request queue
RequestQueue requestQueue2 = Volley.newRequestQueue(this);
//Adding request to the queue
requestQueue2.add(stringRequest2);
}
private void getStudents2(JSONArray j2) {
//Traversing through all the items in the json array
for (int i = 0; i < j2.length(); i++) {
try {
//Getting json object
JSONObject json2 = j2.getJSONObject(i);
//Adding the name of the student to array list
students2.add(json2.getString(Config.TAG_USERNAME));
} catch (JSONException e) {
e.printStackTrace();
}
}
//Setting adapter to show the items in the spinner
spinner2.setAdapter(new ArrayAdapter<String>(MainActivity_d3.this, android.R.layout.simple_spinner_dropdown_item, students2));
}
}
//InsertActivity
public class InsertActivity extends AsyncTask<String, Void, String> {
private Context context;
Boolean error, success;
public InsertActivity(Context context) {
this.context = context;
}
protected void onPreExecute() {
}
@Override
protected String doInBackground(String... arg0) {
String s_name = arg0[0];
// String userName = arg0[1];
String s_course = arg0[1];
String link;
String data;
BufferedReader bufferedReader;
String result;
try {
data = "?s_name=" + URLEncoder.encode(s_name, "UTF-8");
// data += "&username=" + URLEncoder.encode(userName, "UTF-8");
data += "&s_course=" + URLEncoder.encode(s_course, "UTF-8");
link = "http://mangoair.in/Spinner/insert_s1.php" + data;
// link = "http://hostogen.com/mangoair10/tryrr.php" + data;
URL url = new URL(link);
HttpURLConnection con = (HttpURLConnection) url.openConnection();
bufferedReader = new BufferedReader(new InputStreamReader(con.getInputStream()));
result = bufferedReader.readLine();
return result;
} catch (Exception e) {
// return new String("Exception: " + e.getMessage());
// return null;
}
return null;
}
/* @Override
protected void onPostExecute(String result) {
String jsonStr = result;
try {
JSONObject jsonObj = new JSONObject(jsonStr);
String query_result = jsonObj.getString("success");
String message_result = jsonObj.getString("message");
if (query_result.equalsIgnoreCase("1")) {
Toast.makeText(context,message_result , Toast.LENGTH_LONG).show();
} else if (query_result.equalsIgnoreCase("-1")) {
Toast.makeText(context, message_result, Toast.LENGTH_LONG).show();
}
} catch (JSONException e) {
e.printStackTrace();
}
}*/
@Override
protected void onPostExecute(String result) {
String jsonStr = result;
try {
JSONObject jsonObj = new JSONObject(jsonStr);
String query_result = jsonObj.getString("query_result");
if (query_result.equalsIgnoreCase("SUCCESS")) {
Toast.makeText(context, "Data inserted successfully. Signup successfully.", Toast.LENGTH_LONG).show();
} else if (query_result.equalsIgnoreCase("FAILURE")) {
Toast.makeText(context, "Data could not be inserted, fill all records.", Toast.LENGTH_LONG).show();
}
} catch (JSONException e) {
e.printStackTrace();
}
}
}
bitte geben Sie mir einen Beispielcode – mukund
Spinner Myspinner = (Spinner) findViewById (R.id.Ihr_Spinner); Zeichenfolge text = mySpinner.getSelectedItem(). ToString(); –
wo ich diesen Spinner deklariert habe? und selceted Artikel von Spinner speichert die in der Datenbank? – mukund