How can I get the current screen orientation?

int orientation = this.getResources().getConfiguration().orientation;
if (orientation == Configuration.ORIENTATION_PORTRAIT) {
    // code for portrait mode
} else {
    // code for landscape mode
}

When the superclass of this is Context

Activity.getResources().getConfiguration().orientation

int rotation =  getWindowManager().getDefaultDisplay().getRotation();

this will gives all orientation like normal and reverse

and handle it like

int angle = 0;
switch (rotation) {
    case Surface.ROTATION_90:
        angle = -90;
        break;
    case Surface.ROTATION_180:
        angle = 180;
        break;
    case Surface.ROTATION_270:
        angle = 90;
        break;
    default:
        angle = 0;
        break;
}