A simple method helper for grid in android to be dynamic in number of columns

numberOfColumn

public int numOfColumnsForOrientation() {
        Display display = getActivity().getWindowManager().getDefaultDisplay();
        int width = display.getWidth();
        int height = display.getHeight();
        int numOfColoums = 0;
        if (width < height) {
            // portrait mode
            numOfColoums = 2;
            if (width > 600) { // for tablet sw600
                numOfColoums = 3;
            }
        } else {
            // landscape mode
            numOfColoums = 3;
            if (width > 600) { // for tablet sw600
                numOfColoums = 3;
            }
        }
        return numOfColoums;
    }

on portrait mode in nexus 5x shows 3 col??

the solution is (calculate width and height in dp) look at the following code

DisplayMetrics displayMetrics = getResources().getDisplayMetrics();
float dpHeight = displayMetrics.heightPixels / displayMetrics.density;
float dpWidth = displayMetrics.widthPixels / displayMetrics.density;