优化

app/src/main/java/io/legado/app/ui/book/read/page/ContentView.kt

@@ -32,7 +32,9 @@ class ContentView(context: Context) : FrameLayout(context) {
     private var tvPageAndTotal: BatteryView? = null
 
     val headerHeight: Int
-        get() = if (ReadBookConfig.hideStatusBar) ll_header.height else context.statusBarHeight
+        get() = if (ReadBookConfig.hideStatusBar) {
+            if (ll_header.isGone) 0 else ll_header.height
+        } else context.statusBarHeight
 
     init {
         //设置背景防止切换背景时文字重叠