How to get maxZoom in Java?

[scifinder]

Hello! I'm using Java. I do not understand how to get the value of maxZoom. Capabilities.getZoom() and then?

[marekfoltyn]

Hi, check the method documentation of Fotoapparat.setZoom(...):

   /**
     * Asynchronously updates zoom level of the camera.
     * If zoom is not supported by the device - does nothing.
     *
     * @param zoomLevel Zoom level of the camera. A value between 0 and 1.
     * @throws IllegalStateException If the current camera has not started.
     */
    fun setZoom(...) ...

I think the zoom in Fotoapparat is relative - 0 is no zoom and 1 is max zoom. In my app I just use 5 zoom steps (0, 0.25, 0.5, 0.75, 1).

[johntzan]

This is how I did it with Java:

private void getZoomCapability(){

    fotoapparat.getCapabilities().whenDone(capabilities ->  {
            if(capabilities==null){
                return;
            }
            setupZoom((Zoom.VariableZoom) capabilities.getZoom());
        }

    );

}

and then in setupZoom(Zoom.VariableZoom zoom) I am getting max Zoom with: zoom.getMaxZoom(). Be sure to call this after fotoapparat has started.

Hope that helps!

[scifinder]

@johntzan Thank you very much! You helped me a lot.

[scifinder]

But... On some devices I get a value of 30 or 100.