关闭键盘后导航栏不会隐藏

Question

When I fill in a input field and close the keyboard my navigation bar wont hide.

Before I fill in the input field its hidden.

I tried multiple solutions but none of them work for me.

this.Window.AddFlags(WindowManagerFlags.Fullscreen); // hide the status bar

int uiOptions = (int)Window.DecorView.SystemUiVisibility;

uiOptions |= (int)SystemUiFlags.LowProfile;
uiOptions |= (int)SystemUiFlags.Fullscreen;
uiOptions |= (int)SystemUiFlags.HideNavigation;
uiOptions |= (int)SystemUiFlags.ImmersiveSticky;

Window.DecorView.SystemUiVisibility = (StatusBarVisibility)uiOptions;

This is the code i have in my OnCreate method in my MainActivity .

Answer 1

Here is the demo.

Implement View.IOnSystemUiVisibilityChangeListener interface:

    public void OnSystemUiVisibilityChange([GeneratedEnum] StatusBarVisibility visibility)
    {
        if (((int)visibility & (int)SystemUiFlags.Fullscreen) == 0)
        {
            Window.DecorView.SystemUiVisibility = (StatusBarVisibility)uiOptions;
        }

    }

Add the listener for your DecorView:

Window.DecorView.SetOnSystemUiVisibilityChangeListener(this);

Override OnWindowFocusChanged :

    public override void OnWindowFocusChanged(bool hasFocus)
    {
        base.OnWindowFocusChanged(hasFocus);
        Window.DecorView.SystemUiVisibility = (StatusBarVisibility)((int)SystemUiFlags.Fullscreen
            | (int)SystemUiFlags.ImmersiveSticky
            | (int)SystemUiFlags.LayoutHideNavigation
            | (int)SystemUiFlags.LayoutStable
            | (int)SystemUiFlags.HideNavigation);
    }