Android多窗口支持:检测状态栏是否可见？

Question

借助Android的多窗口支持,如何检测状态栏是否可见？例如,当处于纵向方向时,如果我是顶级应用程序,状态栏可能是可见的,但是当我是底部应用程序时,状态栏可能不可见.现在,我的观点在底部是有趣的,因为我为不再存在的状态栏腾出了空间.

Answer 1

假设您指的是系统 UI 栏，即状态栏，执行以下操作：

View decorView = getWindow().getDecorView();

decorView.setOnSystemUiVisibilityChangeListener (new  View.OnSystemUiVisibilityChangeListener() { 
@Override 
public void onSystemUiVisibilityChange(int visibility) {
    // Note that system bars will only be "visible" if none of the 
    // LOW_PROFILE, HIDE_NAVIGATION, or FULLSCREEN flags are set. 
    if ((visibility & View.SYSTEM_UI_FLAG_FULLSCREEN) == 0) {
        // TODO: The system bars are visible. Make any desired 
        // adjustments to your UI, such as showing the action bar or 
        // other navigational controls. 
    } else { 
        // TODO: The system bars are NOT visible. Make any desired 
        // adjustments to your UI, such as hiding the action bar or 
        // other navigational controls. 
    } 
} 

});

这直接来自文档： https ://developer.android.com/training/system-ui/visibility.html