diff --git a/Android/app/src/main/java/name/jinleili/wgpu/MainActivity.kt b/Android/app/src/main/java/name/jinleili/wgpu/MainActivity.kt
index f902741..a487856 100644
--- a/Android/app/src/main/java/name/jinleili/wgpu/MainActivity.kt
+++ b/Android/app/src/main/java/name/jinleili/wgpu/MainActivity.kt
@@ -53,14 +53,52 @@ fun SurfaceCard() {
         ) {
             Text(text = "wgpu in Android App", fontSize = 20.sp, fontWeight = FontWeight.Bold)
         }
-        Row(
-            verticalAlignment = Alignment.CenterVertically,
-            horizontalArrangement = Arrangement.Center,
-            modifier = Modifier
-                .height(54.dp)
-                .padding(horizontal = 0.dp, vertical = 9.dp)
-                .fillMaxWidth()
-        ) {
+//        Row(
+//            verticalAlignment = Alignment.CenterVertically,
+//            horizontalArrangement = Arrangement.Center,
+//            modifier = Modifier
+//                .height(54.dp)
+//                .padding(horizontal = 0.dp, vertical = 9.dp)
+//                .fillMaxWidth()
+//        ) {
+
+//            ToggleButton(
+//                currentSelection = selected,
+//                toggleStates = toggleValues,
+//                onToggleChange = { title ->
+//                    selected = title
+//                    toggleValues.forEachIndexed { idx, v ->
+//                        if (v == title) {
+//                            surfaceView?.changeExample(idx)
+//                        }
+//                    }
+//                },
+//            )
+//
+//        }
+//        Spacer(modifier = Modifier.height(8.dp))
+//        AndroidView(
+//            factory = { ctx ->
+//                val sv = WGPUSurfaceView(context = ctx)
+//                surfaceView = sv
+//                sv
+//            },
+//            modifier = Modifier
+//                .fillMaxWidth()
+//                .height(screenWidth),
+//        )
+//    }
+        Box(modifier = Modifier.fillMaxSize()) {
+            AndroidView(
+                factory = { ctx ->
+                    val sv = WGPUSurfaceView(context = ctx)
+                    surfaceView = sv
+                    sv
+                },
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .height(screenWidth),
+            )
             ToggleButton(
                 currentSelection = selected,
                 toggleStates = toggleValues,
@@ -73,18 +111,6 @@ fun SurfaceCard() {
                     }
                 },
             )
-
         }
-        Spacer(modifier = Modifier.height(8.dp))
-        AndroidView(
-            factory = { ctx ->
-                val sv = WGPUSurfaceView(context = ctx)
-                surfaceView = sv
-                sv
-            },
-            modifier = Modifier
-                .fillMaxWidth()
-                .height(screenWidth),
-        )
     }
 }
diff --git a/Android/app/src/main/java/name/jinleili/wgpu/WGPUSurfaceView.kt b/Android/app/src/main/java/name/jinleili/wgpu/WGPUSurfaceView.kt
index 433251c..1d4e7f5 100644
--- a/Android/app/src/main/java/name/jinleili/wgpu/WGPUSurfaceView.kt
+++ b/Android/app/src/main/java/name/jinleili/wgpu/WGPUSurfaceView.kt
@@ -29,7 +29,10 @@ class WGPUSurfaceView : SurfaceView, SurfaceHolder.Callback2 {
         holder.addCallback(this)
         // The only way to set SurfaceView background color to transparent:
         // https://groups.google.com/g/android-developers/c/jYjvm7ItpXQ?pli=1
-        this.setZOrderOnTop(true)
+//        this.setZOrderOnTop(true)
+
+        // 让系统 ui 能覆盖在 SurfaceView 之上
+        this.setZOrderMediaOverlay(true)
         holder.setFormat(PixelFormat.TRANSPARENT)
     }
 
diff --git a/cargo-so/Cargo.toml b/cargo-so/Cargo.toml
index 9211a31..395ceca 100644
--- a/cargo-so/Cargo.toml
+++ b/cargo-so/Cargo.toml
@@ -4,7 +4,7 @@ authors = ["jinleili"]
 description = "Helps cargo build Android .so lib files"
 repository = "https://github.com/jinleili/wgpu-in-app"
 readme = "./README.MD"
-keywords = ["android", "so", "ndk", "jni", "cargo", "wgpu"]
+keywords = ["android", "so", "ndk", "jni", "cargo"]
 license = "MIT OR Apache-2.0"
 edition = "2021"
 version = "0.3.0"