MAUI Android Splash/启动页

　　MAUI的Splash可以直接在Resources/Splash文件夹下直接更改，参阅官方文档 https://docs.microsoft.com/zh-cn/dotnet/maui/user-interface/images/splashscreen?tabs=ios

　　在实际使用中，如果你想自定义初始屏幕，请跟随我的方法来加载。

 　　一、在Platforms/Android/Resources文件夹下添加drawable文件夹，Platforms/Android/Resources/drawable。

　　二、在文件夹上添加你自定义的splash的xml文件，我的我命名为：splash_bachground.xml， URL：Platforms/Android/Resources/drawable/splash_bachground.xml

 

　　三、修改Platforms/Android/Resources/values/style.xml 文件，如没有这个文件，则直接添加一个即可，代码参考如下：

<?xml version="1.0" encoding="utf-8" ?>
<resources>

    
    <style name="MainTheme" parent="MainTheme.Base">
        <!-- colorPrimary is used for the default action bar background -->
        <item name="colorPrimary">#66B32E</item>
        <!-- colorPrimaryDark is used for the status bar -->
        <item name="colorPrimaryDark">#66B32E</item>
        <!-- colorAccent is used as the default value for colorControlActivated
       which is used to tint widgets -->
        <item name="colorAccent">#66B32E</item>
    </style>

    <style name="MainTheme.SplashGW" parent="Theme.MaterialComponents.Light.NoActionBar">
        <item name="android:windowBackground">@drawable/splash_background</item>
        <item name="colorPrimaryDark">#66B32E</item>
    </style>

    <!-- Base theme applied no matter what API -->
    <style name="MainTheme.Base" parent="Theme.AppCompat.Light.DarkActionBar">
        <!--If you are using revision 22.1 please use just windowNoTitle. Without android:-->
        <item name="windowNoTitle">true</item>
        <!--We will be using the toolbar so no need to show ActionBar-->
        <item name="windowActionBar">false</item>
        <!-- Set theme colors from http://www.google.com/design/spec/style/color.html#color-color-palette -->

        <!-- You can also set colorControlNormal, colorControlActivated
       colorControlHighlight and colorSwitchThumbNormal. -->
        <item name="windowActionModeOverlay">true</item>
        <item name="android:datePickerDialogTheme">@style/AppCompatDialogStyle</item>
        <item name="android:textAppearanceButton">@style/MyTextAppearance.Material.Button</item>
    </style>
    <style name="AppCompatDialogStyle" parent="Theme.AppCompat.Light.Dialog">
        <item name="colorAccent">#FFFFFF</item>
    </style>

    <style name="MyTextAppearance.Material.Button" parent="@android:style/TextAppearance.Material.Button">
        <item name="textAllCaps">false</item>
        <item name="android:textAllCaps">false</item>
    </style>

    <declare-styleable name="MaxHeightScrollView">
        <attr name="maxHeight" format="dimension"/>
    </declare-styleable>

    <!-- 自定义仿IOS的AlertDialog的样式 -->
    <style name="AlertDialogStyle" parent="Theme.AppCompat.Dialog">
        <item name="android:windowBackground">@android:color/transparent</item>
        <item name="android:windowContentOverlay">@null</item>
        <item name="android:windowIsFloating">true</item>
        <item name="android:windowFrame">@null</item>
        <item name="android:backgroundDimEnabled">true</item>
        <item name="android:windowNoTitle">true</item>
    </style>
    
</resources>

　　四、修改MainActivity的Theme,参考代码如下：

[Activity(Theme = "@style/MainTheme.SplashGW", MainLauncher = true, ConfigurationChanges = ConfigChanges.ScreenSize | ConfigChanges.Orientation | ConfigChanges.UiMode | ConfigChanges.ScreenLayout | ConfigChanges.SmallestScreenSize | ConfigChanges.Density)]
public class MainActivity : MauiAppCompatActivity
{
    public static MainActivity Instance { get; private set; }
    protected override void OnCreate(Bundle savedInstanceState)
    {
        Instance = this;
        base.OnCreate(savedInstanceState);
    }
}

　　总共四步，处理完成后启动Android调试即可。

　　当前发布时间为MAUI的第一个版本，目前使用iOS还存在问题，后续修改后再发iOS的初始屏幕。

　　参考GitHub URL：https://github.com/zuimengaitianya/GLBMaui，喜欢的给个star。