Question

我的AndroidManifest.xml：

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.flutter_application_1">
   <application
        android:label="flutter_application_1"
        android:icon="@mipmap/ic_launcher">
        <activity
            android:name=".MainActivity"
            android:launchMode="singleTop"
            android:theme="@style/LaunchTheme"
            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
            android:hardwareAccelerated="true"
            android:windowSoftInputMode="adjustResize">
            
            <meta-data
              android:name="io.flutter.embedding.android.NormalTheme"
              android:resource="@style/NormalTheme"
              />
            <meta-data
              android:name="io.flutter.embedding.android.SplashScreenDrawable"
              android:resource="@drawable/launch_background"
              />
            <intent-filter>
                <action android:name="android.intent.action.MAIN"/>
                <category android:name="android.intent.category.LAUNCHER"/>
            </intent-filter>
        </activity>
        <meta-data
            android:name="flutterEmbedding"
            android:value="2" />
    </application>
</manifest>

我的launch_background.xml :(我已经给出了白色但仍然出现黑屏)

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

我的style.xml :

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <style name="LaunchTheme" parent="@android:style/Theme.Light.NoTitleBar">
       <item name="android:windowBackground">@drawable/launch_background</item>
    </style>
    <style name="NormalTheme" parent="@android:style/Theme.Light.NoTitleBar">
       <item name="android:windowBackground">?android:colorBackground</item>
    </style>
</resources>

res 文件夹：

flutter run --verbose :（报告） Verbose Report

其余一切正常，我面临的唯一问题是这个启动/启动画面。请帮我弄清楚。

Answer 1

检查您的 styles.xml 文件，它应该如下所示：

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <style name="LaunchTheme" parent="Theme.AppCompat.NoActionBar">
        <item name="android:windowBackground">@drawable/launch_background</item>
    </style>
  
    <style name="NormalTheme" parent="@android:style/Theme.Black.NoTitleBar">
        <item name="android:windowBackground">@drawable/launch_background</item>
    </style>
</resources>

如果仍然没有结果，请尝试在 launch_background.xml 中使用 <item> 属性代替 <bitmap> 用于 launch_image：

<?xml version="1.0" encoding="utf-8"?>
<!-- Modify this file to customize your launch splash screen -->
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:drawable="@android:color/white" />

    <item
        android:drawable="@drawable/launch_image"
        android:gravity="center" />
</layer-list>

在 Flutter 应用程序启动时将黑屏作为启动画面

1 个答案: