Xamarin.Android：DrawerLayout.LayoutParams中的重力参数

我正在尝试使用Xamarin.Android以编程方式创建DrawerLayout,但是在尝试添加应该从左侧拖动的ListView时遇到了问题.

这是我的代码：

DrawerLayout myDrawerLayout = new DrawerLayout(this);
myDrawerLayout.LayoutParameters = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MatchParent, ViewGroup.LayoutParams.MatchParent);
SetContentView(myDrawerLayout);


FrameLayout myFrameLayout = new FrameLayout(this);
myFrameLayout.LayoutParameters = new DrawerLayout.LayoutParams(ViewGroup.LayoutParams.MatchParent, ViewGroup.LayoutParams.MatchParent);
myFrameLayout.SetBackgroundColor(Android.Graphics.Color.Gray);
myDrawerLayout.AddView(myFrameLayout);


ListView myListView = new ListView(this);
myListView.SetBackgroundColor(Android.Graphics.Color.Green);
myListView.LayoutParameters = new DrawerLayout.LayoutParams( width: 240,
                                                  height: DrawerLayout.LayoutParams.MatchParent,
                                                  gravity: ????????
                                                           );
myDrawerLayout.AddView(myListView);

如您所知..我不知道将什么作为重力参数传递

DrawerLayout类中的函数定义如下：

public LayoutParams(int width, int height, int gravity);

所以我必须通过int来获取引力,但是如何？

我尝试了以下方法：

myListView.LayoutParameters = new DrawerLayout.LayoutParams( width: 240, height: DrawerLayout.LayoutParams.MatchParent, gravity: Gravity.LEFT);

它给我错误：

‘Gravity’ does not contain a definition for ‘LEFT’

还尝试了：

myListView.LayoutParameters = new DrawerLayout.LayoutParams( width: 240, height: DrawerLayout.LayoutParams.MatchParent, gravity: GravityFlags.Left);

但给我一个错误：

cannot convert from ‘Android.Views.GravityFlags’ to ‘int’

希望您对解决方案有个了解..并在此先感谢

解决方法:

您必须将标志转换为int像

new DrawerLayout.LayoutParams(240, DrawerLayout.LayoutParams.WrapContent, (int)(GravityFlags.Start | GravityFlags.Left)).

标签：drawerlayout,android,xamarin-android,c-2
来源： https://codeday.me/bug/20191013/1906954.html