diff --git a/app/src/main/java/com/casic/endoscope/view/MainActivity.kt b/app/src/main/java/com/casic/endoscope/view/MainActivity.kt
index 99f1691..d0cad31 100644
--- a/app/src/main/java/com/casic/endoscope/view/MainActivity.kt
+++ b/app/src/main/java/com/casic/endoscope/view/MainActivity.kt
@@ -328,23 +328,6 @@
             }
         })
 
-        binding.downScaleButton.setOnTouchListener { _, event ->
-            when (event.action) {
-                MotionEvent.ACTION_DOWN -> {
-                    if (isPreviewSuccess && isScaleButtonUp) {
-                        hkSDK.NET_DVR_PTZControl(previewHandle, PTZCommand.ZOOM_OUT, 0)
-                        isScaleButtonUp = false
-                    }
-                }
-
-                MotionEvent.ACTION_UP -> {
-                    isScaleButtonUp = true
-                    hkSDK.NET_DVR_PTZControl(previewHandle, PTZCommand.ZOOM_OUT, 1)
-                }
-            }
-            true
-        }
-
         binding.upScaleButton.setOnTouchListener { _, event ->
             when (event.action) {
                 MotionEvent.ACTION_DOWN -> {
@@ -359,7 +342,24 @@
                     hkSDK.NET_DVR_PTZControl(previewHandle, PTZCommand.ZOOM_IN, 1)
                 }
             }
-            true
+            false
+        }
+
+        binding.downScaleButton.setOnTouchListener { _, event ->
+            when (event.action) {
+                MotionEvent.ACTION_DOWN -> {
+                    if (isPreviewSuccess && isScaleButtonUp) {
+                        hkSDK.NET_DVR_PTZControl(previewHandle, PTZCommand.ZOOM_OUT, 0)
+                        isScaleButtonUp = false
+                    }
+                }
+
+                MotionEvent.ACTION_UP -> {
+                    isScaleButtonUp = true
+                    hkSDK.NET_DVR_PTZControl(previewHandle, PTZCommand.ZOOM_OUT, 1)
+                }
+            }
+            false
         }
     }
 

diff --git a/app/src/main/java/com/casic/endoscope/view/MainActivity.kt b/app/src/main/java/com/casic/endoscope/view/MainActivity.kt
index 99f1691..d0cad31 100644
--- a/app/src/main/java/com/casic/endoscope/view/MainActivity.kt
+++ b/app/src/main/java/com/casic/endoscope/view/MainActivity.kt
@@ -328,23 +328,6 @@
             }
         })
 
-        binding.downScaleButton.setOnTouchListener { _, event ->
-            when (event.action) {
-                MotionEvent.ACTION_DOWN -> {
-                    if (isPreviewSuccess && isScaleButtonUp) {
-                        hkSDK.NET_DVR_PTZControl(previewHandle, PTZCommand.ZOOM_OUT, 0)
-                        isScaleButtonUp = false
-                    }
-                }
-
-                MotionEvent.ACTION_UP -> {
-                    isScaleButtonUp = true
-                    hkSDK.NET_DVR_PTZControl(previewHandle, PTZCommand.ZOOM_OUT, 1)
-                }
-            }
-            true
-        }
-
         binding.upScaleButton.setOnTouchListener { _, event ->
             when (event.action) {
                 MotionEvent.ACTION_DOWN -> {
@@ -359,7 +342,24 @@
                     hkSDK.NET_DVR_PTZControl(previewHandle, PTZCommand.ZOOM_IN, 1)
                 }
             }
-            true
+            false
+        }
+
+        binding.downScaleButton.setOnTouchListener { _, event ->
+            when (event.action) {
+                MotionEvent.ACTION_DOWN -> {
+                    if (isPreviewSuccess && isScaleButtonUp) {
+                        hkSDK.NET_DVR_PTZControl(previewHandle, PTZCommand.ZOOM_OUT, 0)
+                        isScaleButtonUp = false
+                    }
+                }
+
+                MotionEvent.ACTION_UP -> {
+                    isScaleButtonUp = true
+                    hkSDK.NET_DVR_PTZControl(previewHandle, PTZCommand.ZOOM_OUT, 1)
+                }
+            }
+            false
         }
     }
 
diff --git a/app/src/main/res/drawable/selector_scale_button.xml b/app/src/main/res/drawable/selector_scale_button.xml
new file mode 100644
index 0000000..7273700
--- /dev/null
+++ b/app/src/main/res/drawable/selector_scale_button.xml
@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="utf-8"?>
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:state_pressed="true">
+        <shape android:shape="rectangle">
+            <solid android:color="#EEEEEE" />
+            <corners android:radius="@dimen/dp_7" />
+        </shape>
+    </item>
+
+    <item android:state_pressed="false">
+        <shape android:shape="rectangle">
+            <solid android:color="@color/white" />
+            <corners android:radius="@dimen/dp_7" />
+        </shape>
+    </item>
+</selector>
\ No newline at end of file

diff --git a/app/src/main/java/com/casic/endoscope/view/MainActivity.kt b/app/src/main/java/com/casic/endoscope/view/MainActivity.kt
index 99f1691..d0cad31 100644
--- a/app/src/main/java/com/casic/endoscope/view/MainActivity.kt
+++ b/app/src/main/java/com/casic/endoscope/view/MainActivity.kt
@@ -328,23 +328,6 @@
             }
         })
 
-        binding.downScaleButton.setOnTouchListener { _, event ->
-            when (event.action) {
-                MotionEvent.ACTION_DOWN -> {
-                    if (isPreviewSuccess && isScaleButtonUp) {
-                        hkSDK.NET_DVR_PTZControl(previewHandle, PTZCommand.ZOOM_OUT, 0)
-                        isScaleButtonUp = false
-                    }
-                }
-
-                MotionEvent.ACTION_UP -> {
-                    isScaleButtonUp = true
-                    hkSDK.NET_DVR_PTZControl(previewHandle, PTZCommand.ZOOM_OUT, 1)
-                }
-            }
-            true
-        }
-
         binding.upScaleButton.setOnTouchListener { _, event ->
             when (event.action) {
                 MotionEvent.ACTION_DOWN -> {
@@ -359,7 +342,24 @@
                     hkSDK.NET_DVR_PTZControl(previewHandle, PTZCommand.ZOOM_IN, 1)
                 }
             }
-            true
+            false
+        }
+
+        binding.downScaleButton.setOnTouchListener { _, event ->
+            when (event.action) {
+                MotionEvent.ACTION_DOWN -> {
+                    if (isPreviewSuccess && isScaleButtonUp) {
+                        hkSDK.NET_DVR_PTZControl(previewHandle, PTZCommand.ZOOM_OUT, 0)
+                        isScaleButtonUp = false
+                    }
+                }
+
+                MotionEvent.ACTION_UP -> {
+                    isScaleButtonUp = true
+                    hkSDK.NET_DVR_PTZControl(previewHandle, PTZCommand.ZOOM_OUT, 1)
+                }
+            }
+            false
         }
     }
 
diff --git a/app/src/main/res/drawable/selector_scale_button.xml b/app/src/main/res/drawable/selector_scale_button.xml
new file mode 100644
index 0000000..7273700
--- /dev/null
+++ b/app/src/main/res/drawable/selector_scale_button.xml
@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="utf-8"?>
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:state_pressed="true">
+        <shape android:shape="rectangle">
+            <solid android:color="#EEEEEE" />
+            <corners android:radius="@dimen/dp_7" />
+        </shape>
+    </item>
+
+    <item android:state_pressed="false">
+        <shape android:shape="rectangle">
+            <solid android:color="@color/white" />
+            <corners android:radius="@dimen/dp_7" />
+        </shape>
+    </item>
+</selector>
\ No newline at end of file
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index f5ccfd0..41ff10a 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -272,7 +272,7 @@
                     <LinearLayout
                         android:layout_width="wrap_content"
                         android:layout_height="match_parent"
-                        android:layout_marginEnd="@dimen/dp_15"
+                        android:layout_marginEnd="@dimen/dp_60"
                         android:gravity="center"
                         android:orientation="vertical">
 
@@ -287,14 +287,16 @@
                             android:layout_width="wrap_content"
                             android:layout_height="match_parent"
                             android:layout_marginTop="@dimen/dp_10"
-                            android:background="@drawable/bg_stroke_layout_blue_10"
-                            android:paddingHorizontal="@dimen/dp_20"
-                            android:paddingVertical="@dimen/dp_10">
+                            android:background="@drawable/bg_stroke_layout_blue_10">
 
                             <LinearLayout
                                 android:id="@+id/upScaleButton"
-                                android:layout_width="wrap_content"
-                                android:layout_height="wrap_content"
+                                android:layout_width="@dimen/dp_70"
+                                android:layout_height="@dimen/dp_70"
+                                android:layout_margin="@dimen/dp_3"
+                                android:background="@drawable/selector_scale_button"
+                                android:clickable="true"
+                                android:focusable="true"
                                 android:gravity="center"
                                 android:orientation="vertical">
 
@@ -314,9 +316,13 @@
 
                             <LinearLayout
                                 android:id="@+id/downScaleButton"
-                                android:layout_width="wrap_content"
-                                android:layout_height="wrap_content"
+                                android:layout_width="@dimen/dp_70"
+                                android:layout_height="@dimen/dp_70"
                                 android:layout_alignParentBottom="true"
+                                android:layout_margin="@dimen/dp_3"
+                                android:background="@drawable/selector_scale_button"
+                                android:clickable="true"
+                                android:focusable="true"
                                 android:gravity="center"
                                 android:orientation="vertical">
 
@@ -339,8 +345,7 @@
                     <LinearLayout
                         android:layout_width="wrap_content"
                         android:layout_height="match_parent"
-
-                        android:layout_marginStart="@dimen/dp_15"
+                        android:layout_marginStart="@dimen/dp_60"
                         android:gravity="center_horizontal"
                         android:orientation="vertical">