TimerTask and Handler, effect on battery consumption

In my application I update a text box with the latitude/longitude values of the centre of the dis开发者_JS百科played Mapview. I'm doing this by means of a TimerTask which sends a message to to a handler every second.

Is this an inefficient way of doing this, in terms of CPU load/battery consumption?

If so is there a more efficient way of updating the text whenever the centre of the view changes?

This is not connected with GPS, as in one mode of my app I can turn the GPS off and scroll and pan around the map.

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Is this an inefficient way of doing this, in terms of CPU load/battery consumption?

I'd use postDelayed() to schedule a Runnable (which reschedules itself via postDelayed() to create your timing loop), so you can avoid the implicit background thread involved in TimerTask. Otherwise, this isn't particularly inefficient.

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Timer task with Handler example is here