Android setFocusArea and Auto Focus

Question

I\'ve been battling with this feature for couple of days now...

It seems, that camera is ignoring(?) focus areas that I\'ve defined. Here is snippets of the code:

Answer 1

Beside setting:

parameters.setFocusMode(Parameters.FOCUS_MODE_AUTO);

you need to set:

parameters.setFocusMode(Parameters.FOCUS_MODE_CONTINUOUS_PICTURE);

if you want real 'live' auto-focus. Also, it will be good to check available focuses:

List focusModes = parameters.getSupportedFocusModes();
LLog.d("focusModes=" + focusModes);
if (focusModes.contains(Parameters.FOCUS_MODE_CONTINUOUS_PICTURE))
    parameters.setFocusMode(Parameters.FOCUS_MODE_CONTINUOUS_PICTURE);

On Samsung S6 you must set this with little delay (~ 500 ms) after getting camera preview.