app crash on button click when spinner getting populated dynamically

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I have an android with three spinners getting their data dynamically using rest services. The problem is if i click the save button in the bottom while the spinners are still being loaded. the app crashes. what i am trying to achieve is a method to disable my button click till spinners load their value. I tried setEnabled property & set clickable property. but none helped. i need help in this kind of validation .

else if(spinner1.getSelectedItem().toString().trim().equals(""))
         {  

            Toast.makeText(HourlyEntry.this,"Please wait..", Toast.LENGTH_SHORT) .show();  
             return false;  
        }
for example 

asked 32 secs ago

tushar narang

108