Xamarin（Android）制作启动画面

1、将启动图片保存到drawable文件夹下

2、在drawable文件夹下创建splashscreen.xml

<?xml version="1.0" encoding="utf-8" ?> 
<bitmap xmlns:android="http://schemas.android.com/apk/res/android" 
android:src="@drawable/splash_screen" 
android:gravity="fill" 
android:layout_gravity="center"/>

3、在android项目的 resources 文件夹下添加“values”文件夹，创建 styles.xml，设置其创建内容如下：

<?xml version="1.0" encoding="utf-8" ?>
<resources>
  <style name="theme.splash"
    parent="android:theme.holo.light">
    <item name="android:windowbackground">@drawable/splashscreen</item>
    <item name="android:windownotitle">true</item>
    <item name="android:windowistranslucent">false</item>
    <item name="android:windowisfloating">false</item>
    <item name="android:backgrounddimenabled">true</item>
  </style>
</resources>

4、在android项目下创建一个splashscreen.cs类

 [activity(mainlauncher = true, nohistory = true, theme = "@style/theme.splash",
    configurationchanges = configchanges.screensize | configchanges.orientation)]
    public class splashscreen : activity
    {
        protected override void oncreate(bundle bundle)
        {
            base.oncreate(bundle);
            var intent = new intent(this, typeof(mainactivity));
            startactivity(intent);
            finish();
        }
    }