iOS XCode : Check Orientation

I use in my method :

 - (CGFloat)setWidthPopupValue {
    //NSLog(@"%ld", (long)[UIDevice currentDevice].orientation);
    if ((long)[UIDevice currentDevice].orientation == 0 || (long)[UIDevice currentDevice].orientation == 1)
    {
        return self.view.frame.size.width * 0.8;
    } else {
        return self.view.frame.size.width * 0.5;
    }
}

0, 1, for portrait
and 3 for landscape

I don't use UIDeviceOrientationIsPortrait([UIDevice currentDevice].orientation)
because while i return value from [UIDevice currentDevice].orientation, it has 3 possibility value, 3 for landscape, 1 for portrait, and 0 after i open browser over link in webview.

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