Joshnerd

Okay, so our teacher has issued us a project to make something (pretty much, anything) that countdown (or up) from 10mins. So most people are doing sand timers etc; However I have chosen to build an application. This is due 18th November... So i do not have much time. I need to know how to start coding the timer. What i need to know is the code involved. (I have learnt some bits and pieces of android development) Any help very much appreciated..

DoddyUK

Assuming you know the basics of creating Android apps, this should be fairly easy with one potentially tricky bit.

- For the layout, you'll need a start and stop button, and a TextView to display the remaining time.

- You'll need two state variables: an integer for the number of seconds remaining, and a boolean to hold the state of the clock. (is it running?)

- Now for the tricky bit. You can't have a loop within the main UI thread counting down the timer, else your app will freeze. You'll need to create a thread that takes 1 away from the remaining seconds variable, and then sleeps for 1 second. You'll also need to make it interruptable when the user presses the Stop and Start buttons. This guide should be a good start for learning about threads.

Those are a few tips that'll help you plan out your app, how you implement that advice is up to you.