android – 如何通过可编程方式将屏幕旋转到横向(或纵向)？

if (getresources().getConfiguration().orientation == Configuration.oRIENTATION_LANDSCAPE) {
    // You can set the value initially by
    // ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED. Once set it
    // retains it's value. The View will be rendered in the specified
    // orientation using the code below.
    setrequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTraiT);
}