在MonoDroid中獲取當前的屏幕方向

Question

我需要在MonoDroid中當前設置的屏幕方向。 它必須檢測它是風景，肖像還是反向風景和反向肖像。

諸如WindowManager.DefaultDisplay.Rotation之類的方法並不總是返回正確的結果。

Answer 1

我在這里找到了用Java編寫的答案： 如何獲取Android設備的當前方向（ActivityInfo.SCREEN_ORIENTATION_ *）？

這是相應的MonoDroid C＃翻譯：

private ScreenOrientation GetScreenOrientation() {
    ScreenOrientation orientation;
    SurfaceOrientation rotation = WindowManager.DefaultDisplay.Rotation;

    DisplayMetrics dm = new DisplayMetrics();
    WindowManager.DefaultDisplay.GetMetrics(dm);

    if ((rotation == SurfaceOrientation.Rotation0 || rotation == SurfaceOrientation.Rotation180) && dm.HeightPixels > dm.WidthPixels
        || (rotation == SurfaceOrientation.Rotation90 || rotation == SurfaceOrientation.Rotation270) && dm.WidthPixels > dm.HeightPixels) {
        // The device's natural orientation is portrait
        switch (rotation) {
            case SurfaceOrientation.Rotation0:
                orientation = ScreenOrientation.Portrait;
                break;
            case SurfaceOrientation.Rotation90:
                orientation = ScreenOrientation.Landscape;
                break;
            case SurfaceOrientation.Rotation180:
                orientation = ScreenOrientation.ReversePortrait;
                break;
            case SurfaceOrientation.Rotation270:
                orientation = ScreenOrientation.ReverseLandscape;
                break;
            default:
                orientation = ScreenOrientation.Portrait;
                break;
        }
    } else {
        // The device's natural orientation is landscape or if the device is square
        switch (rotation) {
            case SurfaceOrientation.Rotation0:
                orientation = ScreenOrientation.Landscape;
                break;
            case SurfaceOrientation.Rotation90:
                orientation = ScreenOrientation.Portrait;
                break;
            case SurfaceOrientation.Rotation180:
                orientation = ScreenOrientation.ReverseLandscape;
                break;
            case SurfaceOrientation.Rotation270:
                orientation = ScreenOrientation.ReversePortrait;
                break;
            default:
                orientation = ScreenOrientation.Landscape;
                break;
        }
    }

    return orientation;
}

如此簡單和常見的任務有很多代碼，但是效果很好。