How can i resize the surfaceview of android video recording application?

Application is allowed to record a video of size 640X480 .

Surface-View shows the stretched preview of camera .

What should be the appropriate Height and Width in dp of Surface-View for the preview size 640X480.

Solution

You should learn about how transforming SP to DP, for example:

float scale = getResources().getDisplayMetrics().scaledDensity;