android - 切换到主 Activity 时启动画面正在调整大小

Question

我目前正在开发 xamarin.forms 应用程序，该应用程序随后将发布到 android 和 ios。

最后，它只是我们网站的应用程序浏览器实现，因此我们客户的 cookie 处理是安全的。

现在的主要问题是启动画面在切换到主要 Activity 时会调整大小，至少看起来是这样，这不会发生在 Android 9.0 的 Android Emulator 中，但在我的 Pixel 2 和 Android 10 上.

但是你自己看看:

应用程序现在有 2 个 Activity 。

1.飞溅 Activity

[Activity(Theme ="@style/Theme.Splash", MainLauncher = true, NoHistory = true)]
public class SplashActivity : Activity 
{
    protected override void OnCreate(Bundle savedInstanceState)
    {
        base.OnCreate(savedInstanceState);
        /*... shortend for readability ...*/
        StartActivity(typeof(MainActivity));            
    }
}

1. 主要 Activity

[Activity(Icon = "@drawable/icon", Theme = "@style/MainTheme.Base", MainLauncher = false)]
public class MainActivity : global::Xamarin.Forms.Platform.Android.FormsAppCompatActivity
{
    protected override void OnCreate(Bundle savedInstanceState)
    {
        base.OnCreate(savedInstanceState);
        Xamarin.Essentials.Platform.Init(this, savedInstanceState);
        global::Xamarin.Forms.Forms.Init(this, savedInstanceState);
        LoadApplication(new App());
    }
    /* ... some more stuff... */
}

1. 我的 Styles.xml

<?xml version="1.0" encoding="utf-8" ?>
<resources>
  <style name="Theme.Splash" parent="@android:style/Theme.NoTitleBar.Fullscreen">
    <item name="android:windowBackground">@drawable/splash_screen</item>
    <item name="android:windowFullscreen">true</item>
    <item name="android:windowActionBar">true</item>
  </style>

  <!-- Base theme applied no matter what API -->
  <style name="MainTheme.Base" parent="@android:style/Theme.NoTitleBar.Fullscreen">

    <!--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 https://aka.ms/material-colors -->
    <!-- colorPrimary is used for the default action bar background -->
    <item name="colorPrimary">#2196F3</item>
    <!-- colorPrimaryDark is used for the status bar -->
    <item name="colorPrimaryDark">#1976D2</item>
    <!-- colorAccent is used as the default value for colorControlActivated
         which is used to tint widgets -->
    <item name="colorAccent">#FF4081</item>
    <!-- You can also set colorControlNormal, colorControlActivated
         colorControlHighlight and colorSwitchThumbNormal. -->

    <item name="android:datePickerDialogTheme">@style/AppCompatDialogStyle</item>
  </style>

  <style name="AppCompatDialogStyle" parent="Theme.AppCompat.Light.Dialog">
    <item name="colorAccent">#FF4081</item>
  </style>
</resources>

任何想法为什么会发生这种情况以及如何防止这种情况将不胜感激。

提前致谢

* 更新 *

splash_screen.xml

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
  <item>
    <color android:color="#fff"/>
  </item>
  <item>
    <bitmap
        android:src="@drawable/alwbg"
        android:tileMode="disabled"
        android:gravity="center"/>
  </item>
</layer-list>

Answer 1

看起来 Developer instrumentation 是闪烁的原因当我禁用它时，它不会再出现。

如何禁用 Developer Instrumentation:(对比 2019)