Discussion :

[systemz]

Bonjour,

Je ne comprends pas pourquoi mon "spinneryear" vaut null. pourtant les années figurent bien à l'intérieur quand le lance l'application. Mais il m'est impossible d'en extraire la données sélectionnée.

Code :

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@Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main_tuto);
 
        /** Shared preferences to get account Id and Name **/
        SharedPreferences preferences = getSharedPreferences("filePrefName", MODE_PRIVATE);
        String accountId = preferences.getString("accountId", "");
        String accountName = preferences.getString("accountName", "");
 
        compteId = Integer.parseInt(accountId);//Convert to integer for BDD
        compteName = accountName;
 
 
        /** Spinner get year and month **/ 
        spinnerYear = (Spinner) findViewById(R.id.yearsss);
        final Spinner spinnerMonth = (Spinner) findViewById(R.id.month);
 
        Calendar spinCal = Calendar.getInstance(Locale.getDefault());
        int intYearNow = spinCal.get(Calendar.YEAR);
        int intMonthNow = spinCal.get(Calendar.MONTH);
 
        spinnerArrayYear = new ArrayAdapter<String>(this,android.R.layout.simple_spinner_item);	    
        spinnerArrayYear.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
 
        ArrayAdapter<String> spinnerArrayMonth = new ArrayAdapter<String>(this,android.R.layout.simple_spinner_item);	    
        spinnerArrayMonth.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
 
        FluxDAO FluxDAOdate = new FluxDAO(this);
        FluxDAOdate.open();
        Cursor cursorDate = FluxDAOdate.mDb.rawQuery("SELECT DISTINCT compteid, IFNULL(MIN(date1), -1) FROM " + FluxDAO.FLUX_TABLE_NAME + " WHERE " + FluxDAO.FLUX_COMPTE_ID + " == " + compteId, null);
	    startManagingCursor(cursorDate);
 
	    if (!cursorDate.moveToFirst() || cursorDate.moveToFirst() && cursorDate.getLong(1) == -1){
	    	String strYear = String.valueOf(spinCal.get(Calendar.YEAR));
	        String hhh = sdf.format(spinCal.get(Calendar.MONTH));
	    	spinnerArrayYear.add(strYear);
	    	spinnerArrayMonth.add(hhh);
            Toast.makeText(getBaseContext(),"Pas de Résultat ! dates en cours", Toast.LENGTH_SHORT).show();
	    }
	    else {
	    	for(cursorDate.moveToFirst(); !cursorDate.isAfterLast(); cursorDate.moveToNext()) {
	    		String dateMinStr = cursorDate.getString(1);
	    		Long dateMinLong = Long.valueOf(dateMinStr);
	    		Calendar calendarMin = Calendar.getInstance(Locale.getDefault());
	    		calendarMin.setTimeInMillis(dateMinLong);
	    		int intYearMin = calendarMin.get(Calendar.YEAR);
	    		int intMonthMin = calendarMin.get(Calendar.MONTH);
 
	    		for(int i=intYearNow; i>=intYearMin; i--){
	    			String Strval = String.valueOf(i);
	    			spinnerArrayYear.add(Strval);
	    			if(spinnerYear.getSelectedItem() == null){
	    				Toast.makeText(this,"Spinner NULL", Toast.LENGTH_SHORT).show();
	    			}
	    			//String gggg = spinnerYear.getSelectedItem().toString();
		            //Toast.makeText(this," aff :" + yearstr, Toast.LENGTH_SHORT).show();
	    		}
	    		// utiliser between 01/2014 au 12/2014
	    		/** Le 01/01/N -> N = Spinner selected **/
	            Calendar calendarMinDateYear = Calendar.getInstance();
	            //String yearstr = spinnerYear.getSelectedItem().toString();
	            //Toast.makeText(this," aff :" + yearstr, Toast.LENGTH_SHORT).show();
	            //int yearInt = Integer.valueOf(yearstr);
	            /*calendarMinDateYear.set(Calendar.YEAR, year);
	            calendarMinDateYear.set(Calendar.MONTH, Calendar.JANUARY);
	            calendarMinDateYear.set(Calendar.DAY_OF_MONTH, 1);
	            calendarMinDateYear.set(Calendar.HOUR_OF_DAY, 0);
	            calendarMinDateYear.set(Calendar.MINUTE, 0);
	            calendarMinDateYear.set(Calendar.SECOND, 0);
	        	Date minDate = calendarMinDateYear.getTime();
	        	/** Le 31/12/N N = Spinner selected **/
	        	/*calendarMinDateYear.set(Calendar.MONTH, Calendar.DECEMBER);
	        	calendarMinDateYear.set(Calendar.DAY_OF_MONTH, 31);
	        	Date maxDate = calendarMinDateYear.getTime();*/
 
	    		/*Cursor cursorMonthMin = FluxDAOdate.mDb.rawQuery("SELECT DISTINCT compteid, MIN(date1)" +
	    				" FROM " + FluxDAO.FLUX_TABLE_NAME + 
	    				" WHERE " + FluxDAO.FLUX_COMPTE_ID + " == " + compteId +
	    				" AND " + FluxDAO.FLUX_DATE1 + " >= ? " +
	    				" AND " + FluxDAO.FLUX_DATE1 + " <= ? " 
	    				, new String[] { Long.toString(minDate.getTime()), Long.toString(maxDate.getTime()) });
	    	    startManagingCursor(cursorMonthMin);*/
 
	    	    //Toast.makeText(this," aff :" + String.valueOf(year), Toast.LENGTH_SHORT).show();
       			}
	    }
	    FluxDAOdate.close();
	    cursorDate.close();
 
	    spinnerYear.setAdapter(spinnerArrayYear);

[systemz]

Je viens de trouver pourquoi le spinner était bien rempli et pourquoi quand je lance le programme j'ai une erreur "nullPointerException" dès que j'utilise la fonction getSelectedItem().

Ca pourra peut être servir à d'autres :

Tout simplement parce que getSelectedItem() ne peut être utilisé qu'après "spinnerYear.setAdapter(spinnerArrayYear)".

[Hizin]

Et la raison dessous :
getSelectedItem demande un item choisi.
L'Adapter fourni les données.
getSelectedItem retournera donc null si aucun Adapter n'a été fourni avant.