fix: status bar system ui

app/src/main/kotlin/li/songe/gkd/composition/CompositionActivity.kt

@@ -1,10 +1,14 @@
 package li.songe.gkd.composition
 
 import android.content.res.Configuration
+import android.graphics.Color
 import android.os.Bundle
 import androidx.activity.ComponentActivity
 import androidx.activity.enableEdgeToEdge
 import androidx.core.splashscreen.SplashScreen.Companion.installSplashScreen
+import androidx.core.view.ViewCompat
+import androidx.core.view.WindowInsetsCompat
+import com.blankj.utilcode.util.BarUtils
 
 open class CompositionActivity(
     private val block: CompositionActivity.(Bundle?) -> Unit,
@@ -30,6 +34,7 @@ open class CompositionActivity(
     override fun onCreate(savedInstanceState: Bundle?) {
         installSplashScreen()
         enableEdgeToEdge()
+        fixTopPadding()
         super.onCreate(savedInstanceState)
         block(savedInstanceState)
     }
@@ -42,5 +47,25 @@ open class CompositionActivity(
         super.onConfigurationChanged(newConfig)
         configurationChangedHooks.forEach { f -> f(newConfig) }
     }
+}
 
-}
+fun ComponentActivity.fixTopPadding() {
+    // 当调用系统分享时, 会导致状态栏区域消失, 应用整体上移, 设置一个 top padding 保证不上移
+    var tempTop: Int? = null
+    ViewCompat.setOnApplyWindowInsetsListener(window.decorView) { view, windowInsets ->
+        view.setBackgroundColor(Color.TRANSPARENT)
+        val statusBars = windowInsets.getInsets(WindowInsetsCompat.Type.statusBars())
+        if (statusBars.top == 0) {
+            view.setPadding(
+                statusBars.left,
+                tempTop ?: BarUtils.getStatusBarHeight(),
+                statusBars.right,
+                statusBars.bottom
+            )
+        } else {
+            tempTop = statusBars.top
+            view.setPadding(statusBars.left, 0, statusBars.right, statusBars.bottom)
+        }
+        ViewCompat.onApplyWindowInsets(view, windowInsets)
+    }
+}