Question

i have a strange problem .i am using a spinner on selection of its items i am opening a popup window but problem is that first time when any item is selected popup window opens but if that item is again selected popup does’nt open until any other item is selected before that item is selected again?? what should i do ?? plss help below is my code

      @Override
    public void onItemSelected(AdapterView<?> parent, View view, int position,
            long id) {
        // TODO Auto-generated method stub
        switch (position) {
        case 0:

            break;
        case 1:
            pool_type_value=0;
            option_selected=2;
            calculation();
            break;

        case 2:
            pool_type_value=1;
            option_selected=2;
            System.out.println("pop up case 2");
            openPopupWindow(pool_legend);


            break;

        case 3:
            pool_type_value=2;
            option_selected=2;
            openPopupWindow(pool_legend);


            break;
        case 4:
            pool_type_value=0;
            option_selected=1;
            calculation();
            break;


        default:
            break;
        }

    }

          private void openPopupWindow(Spinner spinner) {
        // TODO Auto-generated method stub
        int h = 0;
        View popupView = null;
         Button btnDismiss = null;
        LayoutInflater layoutInflater 
         = (LayoutInflater)getBaseContext()
          .getSystemService(LAYOUT_INFLATER_SERVICE); 
         System.out.println("pop up ");
        if(width>240 && height>320)
          {
            h=350;

          }
        else if(width<=240 && height<=320){
            h=200;
        }
        if(pool_type_value==1){
         popupView = layoutInflater.inflate(R.layout.popup_rectangle_extension, null);
         btnDismiss = (Button)popupView.findViewById(R.id.dismiss);
         ed_width_single_extension=(EditText)popupView.findViewById(R.id.editText_singleextension_width);
         ed_length_single_extension=(EditText)popupView.findViewById(R.id.editText_singleextension_lenght);

         System.out.println("pop up 1");
         if(!hashmap.get("single_width").equals("0")){
             ed_width_single_extension.setText(""+hashmap.get("single_width"));
             }
            if(!hashmap.get("single_length").equals("0")){
             ed_length_single_extension.setText(""+hashmap.get("single_length"));
             }

        }else if(pool_type_value==2){
         popupView = layoutInflater.inflate(R.layout.popup_rectangle_plus_extension, null);
         System.out.println("pop up 2");
         btnDismiss = (Button)popupView.findViewById(R.id.dismiss);
        }
                 popupWindow = new PopupWindow(popupView, LayoutParams.FILL_PARENT,h);
                 popupWindow.setTouchable(true);
                 popupWindow.setFocusable(true);

                 btnDismiss.setOnClickListener(new Button.OnClickListener(){

                    @Override
                    public void onClick(View v) {
                        // TODO Auto-generated method stub
                        hashmap.put("single_width", ed_width_single_extension.getText().toString());
                        hashmap.put("single_length", ed_length_single_extension.getText().toString());
                        calculation();

                        popupWindow.dismiss();
                        // setDatabase();
                    }



});



                popupWindow.showAtLocation( spinner, Gravity.CENTER, 0, 10);


    }

Answer 1

Try this

public class NoDefaultSpinner extends Spinner {

    private int lastSelected = 0;
    private static Method s_pSelectionChangedMethod = null;


    static {        
        try {
            Class noparams[] = {};
            Class targetClass = AdapterView.class;

            s_pSelectionChangedMethod = targetClass.getDeclaredMethod("selectionChanged", noparams);            
            if (s_pSelectionChangedMethod != null) {
                s_pSelectionChangedMethod.setAccessible(true);              
            }

        } catch( Exception e ) {
            Log.e("Custom spinner, reflection bug:", e.getMessage());
            throw new RuntimeException(e);
        }
    }

    public NoDefaultSpinner(Context context) {
        super(context);
    }

    public NoDefaultSpinner(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    public NoDefaultSpinner(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
    }

    public void testReflectionForSelectionChanged() {
        try {
            Class noparams[] = {};          
            s_pSelectionChangedMethod.invoke(this, noparams);
        } catch (Exception e) {
            Log.e("Custom spinner, reflection bug: ", e.getMessage());
            e.printStackTrace();                
        }
    } 




    @Override
    public void onClick(DialogInterface dialog, int which) {    
        super.onClick(dialog, which);
            if(lastSelected == which)
                testReflectionForSelectionChanged();

            lastSelected = which;
    }
}