在 Flutter 中以编程方式更改启动画面颜色

Question

launch_background.xml

<?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="@color/orange" />
    <!-- You can insert your own image assets here -->
    <item>
        <bitmap
            android:gravity="center"
            android:src="@drawable/splash_icon" />
    </item> -->
</layer-list>

---

styles.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <style name="LaunchTheme" parent="@android:style/Theme.Black.NoTitleBar">
        <!-- Show a splash screen on the activity. Automatically removed when
             Flutter draws its first frame -->
        <item name="android:windowBackground">@drawable/launch_background</item>
    </style>
    <color name="orange">#FF9800</color>
</resources>

I change the primary color value in the app dynamically and set theme colors for app. How can I send the primary color value here --> <color name="orange">#FF9800</color>

Also what should I do for IOS?

Answer 1

据我所知，您不能以编程方式更改 XML 文件的值。

Answer 2

You can change the color of your splash screen, just follow steps :

• in your : app/android/src/main/res/values, add an xml file colors.xml like this : colors.xml file
• edit this file : app/android/src/main/res/drawable/launch_background.xml , like this : launch_background.xml file