Android Toast Message is not showing

I have Button.When the user click the button, there are some condition, that condition is not satisfy then need to display Toast but not showing Toast Message...

Code: Edited

 Button addMe = (Button)findViewById(R.id.addMe);
    addMe.setOnClickListener(new OnClickListener() {
           public void onClick(View v) {
               if(selectedReason.equals("--Select--")){
                   Log.i("TAG","-----");
                   Toast.makeText(getBaseContext(), "Reason can not be blank", Toast.LENGTH_SHORT).show();
               }else if(selectedType.equals("--Select--")){
                   Toast.makeText(getParent(), "Discount type can not be blank", Toast.LENGTH_SHORT).show();
               }else{
                   if(selectedType.equals("Value")){
                       if(spc_amount.getText().toString().equals("")){
                           Log.i("TAG","-----");
                           Toast.makeText(getBaseContext(), "Discount type can not be blank", Toast.LENGTH_SHORT).show();
                       }else{
                           if(Double.parseDouble(spc_amount.getText().toString()) > invoiceValue){
                               Toast.makeText(getBaseContext(), "Amonut can not be grater than invoice", Toast.LENGTH_SHORT).show();
                           }else{
                               Discount dis = new Discount();
                               dis.setCriteriaName(selectedReason);
                               dis.setDiscountValue(Double.parseDouble(spc_amount.getText().toString()));
                               spDisList.put(1,dis);
                               tl.removeAllViews();
                            loadTableLayout();
                           }

                       }
                   }
               }
           }
    });

I have tried context with getParent() , getApplicationContext() , SpecialDiscountActivity.this & getBaseContext() but not working....

This Toast message coming under the Tab Activity Group

Try:

Toast.makeText(getBaseContext(), "Reason can not be blank", Toast.LENGTH_SHORT).show();

It's the .show() that you've omitted everywhere that causes all your toasts to instatiate, but never execute.

Please excuse me if this isn't the solution to your problem, but I accidentally unchecked the 'Show notification' setting of the application once. It may be an idea go into your device settings/application/manager and check this setting.

I think you are missing .show(); It should be...

Toast.makeText(getBaseContext(), "Amount can not be grater than invoice",
                                                     Toast.LENGTH_SHORT).show();