Xamarin Android 新建Activity

xml

在项目中新建xml文件即可，放置到/Resources/layout文件夹 这里新建activity_load_image.xml文件，添加ImageView控件

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
    <ImageView
        android:id="@+id/imageView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:adjustViewBounds="true"
        android:visibility="visible"/>
</LinearLayout>

C#

//Label 设置名称,设置Theme 
//不能设置MainLauncher=true（不是启动的Activity）
[Activity(Label = "LoadImageActivity",Theme = "@android:style/Theme.NoTitleBar.Fullscreen")]
//注意新建的Activity默认继承的是Activity，根据需要修改
public class LoadImageActivity : Activity
{
    ImageView imageView;
    protected override void OnCreate(Bundle savedInstanceState)
    {
	base.OnCreate(savedInstanceState);

	// Create your application here
	//关联页面activity_load_image
	SetContentView(Resource.Layout.activity_load_image);
	//获得控件
	imageView = FindViewById<ImageView>(Resource.Id.imageView);
    }
}