I'm working on an app for work , it will be an overtime app and what I want it to do is send a text to built in contacts starting at whichever is checked and 5 mins later moving to the next and sending and so on until stopped ( Not sure if its possible ) . What I have so far is 3 buttons on my main activity , the first leading to my Departments Mission statement , the next to full time Officer's , and the last for part time Officer's . On each of the Officer's pages is a text input field , a send button , and check boxes for each contact . but I cant get the rest tied together , the send sms button on click , and the contacts to tie in , after I get it all tied in I will work on the timer . ANY help would be greatly  appreciated . Thanks