public void OnClick_click2(final Button btnadd)
{
    final Button btn = (Button) btnadd;
    if(btn.getId()==R.id.btnadd){

            if(validEdittext(complain_date_txtbx))

             {

                 if(validEdittext(complain_time_txtbx))
                  {
                         if(validEdittext(job_performed_txtbx))
		          {
		                 if(validEdittext(next_due_on_txtbx))
				  {
				                 // show alert here
                                               showAlertbox(String strmessage);
				  }

				  else{
				        //show toast next_due_on_txtbx is empty
				    }

		          }

		          else{
		                //show toast here job_performed_txtbx is empty
		            }

                  }

                  else{
                        //show toast here complain_time_txtbx is empty
                    }

             }

            else{
                   //show toast here date_txtbx is empty
            }

   }
}

//Create EditText Validation method here

public boolean validEdittext(EditText edttext){

String strtxt=edttext.getText().toString();

return strtxt != null && !strtxt.isEmpty() && !strtxt.trim().isEmpty();
}


public void showAlertbox(String strmessage){
 AlertDialog.Builder alert = new AlertDialog.Builder(
                non_ticket_task.this);

        alert.setPositiveButton("Save",
                new DialogInterface.OnClickListener() {

                    @Override
                    public void onClick(DialogInterface arg0, int arg1) {
                        // Perform action on click
                        EditText complain_date_txtbx = (EditText) findViewById(R.id.complain_date_txtbx);
                        EditText complain_time_txtbx = (EditText) findViewById(R.id.complain_time_txtbx);
                        EditText job_performed_txtbx = (EditText) findViewById(R.id.job_performed_txtbx);
                        EditText next_due_on_txtbx = (EditText)  findViewById(R.id.next_due_on_txtbx);

                        String data = complain_date_txtbx.getText().toString()
                                .trim()
                                + Spliter
                                + complain_time_txtbx.getText().toString().trim()
                                + Spliter
                                + job_performed_txtbx.getText().toString().trim()
                                + Spliter
                                + next_due_on_txtbx.getText().toString().trim();

                        SaveRecord(data);

                        Toast.makeText(getBaseContext(),
                                "Your Task saved Successfully!",
                                Toast.LENGTH_LONG).show();
                    }
                });

        alert.setNegativeButton("Cancel",
                new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog,
                            int whichButton) {
                        dialog.cancel();
                    }
                });

        alert.show();

}