Question

I want to keep the the display on whilst the application is running, i.e. I don’t want the device to get locked whilst the application is running.

Answer 1

I think what you want is WakeLock. You should look to this: http://developer.android.com/reference/android/os/PowerManager.WakeLock.html

You need this permission: android.permission.WAKE_LOCK

Then you can just do something like this:

PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
mWakeLock = pm.newWakeLock(PowerManager.SCREEN_DIM_WAKE_LOCK | PowerManager.ON_AFTER_RELEASE, “My Tag”);
mWakeLock.acquire();

To remove the WakeLock just call:

mWakeLock.release();