如何打开Android Navigation Drawer?

How open Android Navigation Drawer?

我需要使用 fab 按钮打开 抽屉
我有以下代码,我只需要打开抽屉

public Action<object, EventArgs> Clicked { get; set; }

private event EventHandler FabClicked = delegate { };

private async void OnFabClicked(object sender, EventArgs args)
{
    var drawer = FindViewById<DrawerLayout>(Resource.Id.drawer_layout);
    // open drawer
}

使用OpenDrawer方法,参考.

private async void OnFabClicked(object sender, EventArgs args)
{
    var drawer = FindViewById<DrawerLayout>(Resource.Id.drawer_layout);
    // open drawer

    drawer.OpenDrawer(GravityCompat.Start);
}