Activity重建或切换夜间模式时Edge-to-edge功能失效问题

调用AppCompatDelegate.setDefaultNightMode切换日间/夜间主题后，Activity重建恢复状态，但Edge-to-edge功能失效，setOnApplyWindowInsetsListener未被触发。该问题在模拟器及部分三星设备上复现，Pixel 9设备正常。

相关代码 #

BaseActivity.kt 启用Edge-to-edge #

override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    Log.d(Const.TAG_ACTIVITY, String.format("%s BaseActivity onCreate()", this.javaClass.simpleName))
    enableEdgeToEdge()
    initBinding()
    onActivityCreate(savedInstanceState)
    observeLiveData()
}

InsetsManager.kt 设置Insets监听 #

object InsetsManager {

fun applyBottomNavigationViewInsets(bottomContainerView: ViewGroup) {
    ViewCompat.setOnApplyWindowInsetsListener(bottomContainerView) { v, windowInsets ->
        val insets = windowInsets.getInsets(WindowInsetsCompat.Type.systemBars())
        v.setPadding(insets.left, insets.top, insets.right, insets.bottom)

        WindowInsetsCompat.CONSUMED
    }
}

fun applyTutorialInsets(view: MainPageTutorialView, promotionsTutorial: PromotionsPageTutorialView) {
    ViewCompat.setOnApplyWindowInsetsListener(view) { _, windowInsets ->
        val insets = windowInsets.getInsets(WindowInsetsCompat.Type.systemBars())

        view.insetsTop = insets.top.toFloat()
        view.insetsLeft = insets.left.toFloat()
        view.insetsRight = insets.right.toFloat()
        view.insetsBottom = insets.bottom.toFloat()
        promotionsTutorial.insetsTop = insets.top.toFloat()
        promotionsTutorial.insetsBottom = insets.bottom.toFloat()

        WindowInsetsCompat.CONSUMED
    }
}
}

已排查/尝试的操作 #

• ✅ enableEdgeToEdge()在setContentView()之前调用
• ✅ setOnApplyWindowInsetsListener在onCreate()中setContentView()之后调用
• ❌ 在onStart、onResume中调用enableEdgeToEdge()无效
• ❌ 配置configChanges="uiMode"并在onConfigurationChanged()中调用enableEdgeToEdge()及手动recreate()无效
• ❌ 移除AndroidManifest.xml中的launchMode="singleTop"无效

解决方案 #

方案1：手动锁定DecorView的Edge-to-Edge配置 #

主题切换重建后，系统可能意外重置DecorView的fitsSystemWindows属性，导致Edge-to-edge失效。在enableEdgeToEdge()后强制设置该属性为false：

override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    Log.d(Const.TAG_ACTIVITY, String.format("%s BaseActivity onCreate()", this.javaClass.simpleName))
    enableEdgeToEdge()
    // 强制关闭fitsSystemWindows，确保Edge-to-edge生效
    window.decorView.fitsSystemWindows = false
    initBinding()
    onActivityCreate(savedInstanceState)
    observeLiveData()
}

方案2：主动触发Insets重新计算 #

Activity重建后，系统可能不会自动派发Insets事件，手动请求目标视图重新计算Insets，强制触发监听回调：

// 在你的Activity实现的onActivityCreate方法末尾添加
override fun onActivityCreate(savedInstanceState: Bundle?) {
    // 原有设置Insets监听的代码
    InsetsManager.applyBottomNavigationViewInsets(binding.bottomContainer)
    InsetsManager.applyTutorialInsets(binding.tutorialView, binding.promotionsTutorial)
    
    // 强制触发Insets重新计算
    ViewCompat.requestApplyInsets(binding.bottomContainer)
    ViewCompat.requestApplyInsets(binding.tutorialView)
}

方案3：调整Insets消费逻辑 #

如果布局中存在多层视图需要处理Insets，不要直接返回WindowInsetsCompat.CONSUMED，改为返回原Insets，避免阻断Insets传递：

fun applyBottomNavigationViewInsets(bottomContainerView: ViewGroup) {
    ViewCompat.setOnApplyWindowInsetsListener(bottomContainerView) { v, windowInsets ->
        val insets = windowInsets.getInsets(WindowInsetsCompat.Type.systemBars())
        v.setPadding(insets.left, insets.top, insets.right, insets.bottom)

        // 返回原Insets，允许其他视图继续处理
        windowInsets
    }
}

方案4：使用WindowInsetsController替代（可选） #

通过WindowInsetsController直接控制系统栏，兼容性更稳定：

// 在BaseActivity中配置
override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    enableEdgeToEdge()
    window.decorView.fitsSystemWindows = false
    
    // 初始化InsetsController，控制系统栏行为
    val insetsController = WindowCompat.getInsetsController(window, window.decorView)
    insetsController.systemBarsBehavior = WindowInsetsControllerCompat.BEHAVIOR_SHOW_TRANSIENT_BARS_BY_SWIPE
    
    initBinding()
    onActivityCreate(savedInstanceState)
    observeLiveData()
}

内容的提问来源于stack exchange，提问作者Nazar Taraniuk