我无法将启动屏幕中的默认颤动图标更改为我在颤动中选择的图像

Question

我的launch_background.xml

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

我在drawable-v21中的launch_background.xml

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

我的安卓清单：

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.my_app">
    <uses-permission android:name="android.permission.INTERNET" />
   <application
        android:label="my_app"
        android:name="${applicationName}"
        android:icon="@mipmap/ic_launcher">
        <activity
            android:name=".MainActivity"
            android:theme="@style/LaunchTheme"
            android:exported="true"
            android:launchMode="singleTop"
            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
            android:hardwareAccelerated="true"
            android:windowSoftInputMode="adjustResize">
            <!-- Specifies an Android theme to apply to this Activity as soon as
                 the Android process has started. This theme is visible to the user
                 while the Flutter UI initializes. After that, this theme continues
                 to determine the Window background behind the Flutter UI. -->
            <meta-data
              android:name="io.flutter.embedding.android.NormalTheme"
              android:resource="@style/NormalTheme"
              />
            <intent-filter>
                <action android:name="android.intent.action.MAIN"/>
                <category android:name="android.intent.category.LAUNCHER"/>
            </intent-filter>
        </activity>
        <!-- Don't delete the meta-data below.
             This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
        <meta-data
            android:name="flutterEmbedding"
            android:value="2" />
    </application>
    
</manifest>

我可以更改背景颜色，但图像始终是 android:icon="@mipmap/ic_launcher">。不管我做什么（在安卓上）。

Answer 1

问题的根源在于您需要在文件中进行设置 。不过，flutter_native_splash 2.1.0刚刚添加了新的配置参数，用于自动设置 Android 12 中的闪屏图标：<item name="android:windowSplashScreenAnimatedIcon">@drawable/...</item>values-v31/styles.xml

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  android_12:\n    # The image parameter sets the splash screen icon image.  If this parameter is not specified,\n    # the app\'s launcher icon will be used instead.\n    # Please note that the splash screen will be clipped to a circle on the center of the screen.\n    # App icon with an icon background: This should be 960\xc3\x97960 pixels, and fit within a circle\n    # 640 pixels in diameter.\n    # App icon without an icon background: This should be 1152\xc3\x971152 pixels, and fit within a circle\n    # 768 pixels in diameter.\n    #image: assets/android12splash.png\n\n    # App icon background color.\n    #icon_background_color: "#111111"\n\n    # The image_dark parameter and icon_background_color_dark set the image and icon background\n    # color when the device is in dark mode. If they are not specified, the app will use the\n    # parameters from above.\n    #image_dark: assets/android12splash-invert.png\n    #icon_background_color_dark: "#eeeeee"\n

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全面披露：我维护这个包。

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