diff --git a/app/build.gradle b/app/build.gradle
index 0f87486..a7b6cb0 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -45,8 +45,8 @@ android {
     productFlavors {
         official {
             flavorDimensions "default"
-            versionCode 37
-            versionName "4.6"
+            versionCode 39
+            versionName "4.8"
         }
     }
 
diff --git a/app/src/main/res/drawable-xxxhdpi/ratingbar_off.png b/app/src/main/res/drawable-xxxhdpi/ratingbar_off.png
new file mode 100644
index 0000000..dc6ef93
Binary files /dev/null and b/app/src/main/res/drawable-xxxhdpi/ratingbar_off.png differ
diff --git a/app/src/main/res/drawable-xxxhdpi/ratingbar_on.png b/app/src/main/res/drawable-xxxhdpi/ratingbar_on.png
new file mode 100644
index 0000000..f008b43
Binary files /dev/null and b/app/src/main/res/drawable-xxxhdpi/ratingbar_on.png differ
diff --git a/app/src/main/res/drawable/my_ratingbar.xml b/app/src/main/res/drawable/my_ratingbar.xml
new file mode 100644
index 0000000..a53cf07
--- /dev/null
+++ b/app/src/main/res/drawable/my_ratingbar.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <!--未选中的图片-->
+    <item android:id="@android:id/background"
+        android:drawable="@drawable/ratingbar_off" />
+    <!--未选中的图片-->
+    <item android:id="@android:id/secondaryProgress"
+        android:drawable="@drawable/ratingbar_off" />
+    <!--选中的图片-->
+    <item android:id="@android:id/progress"
+        android:drawable="@drawable/ratingbar_on" />
+</layer-list>
diff --git a/app/src/main/res/layout-land/item_app.xml b/app/src/main/res/layout-land/item_app.xml
index 78953aa..e130fdf 100644
--- a/app/src/main/res/layout-land/item_app.xml
+++ b/app/src/main/res/layout-land/item_app.xml
@@ -10,22 +10,21 @@
     <LinearLayout
         android:layout_width="match_parent"
         android:layout_height="0dp"
-        android:layout_marginBottom="5dp"
         android:layout_marginLeft="10dp"
-        android:layout_marginRight="10dp"
         android:layout_marginTop="5dp"
+        android:layout_marginRight="10dp"
+        android:layout_marginBottom="5dp"
         android:layout_weight="1">
 
         <ImageView
             android:id="@+id/app_iv_icon"
             android:layout_width="55dp"
             android:layout_height="55dp"
-            android:adjustViewBounds="true"
-            android:scaleType="centerCrop"
-            android:src="@mipmap/ic_launcher"
             android:layout_gravity="center_vertical"
             android:layout_marginRight="10dp"
-            />
+            android:adjustViewBounds="true"
+            android:scaleType="centerCrop"
+            android:src="@mipmap/ic_launcher" />
 
         <LinearLayout
             android:layout_width="0dp"
@@ -33,6 +32,7 @@
             android:layout_gravity="center_vertical"
             android:layout_weight="1"
             android:orientation="vertical">
+
             <TextView
                 android:id="@+id/app_tv_name"
                 android:layout_width="match_parent"
@@ -40,10 +40,11 @@
                 android:layout_weight="1.5"
                 android:gravity="bottom"
                 android:singleLine="true"
-                android:textStyle="bold"
                 android:text="今日头条"
                 android:textColor="@color/black"
-                android:textSize="16sp" />
+                android:textSize="16sp"
+                android:textStyle="bold" />
+
             <TextView
                 android:id="@+id/app_tv_company"
                 android:layout_width="match_parent"
@@ -52,8 +53,8 @@
                 android:gravity="center_vertical"
                 android:singleLine="true"
                 android:text="北京字节跳动网络技术有限公司"
-                android:visibility="gone"
-                android:textSize="12sp" />
+                android:textSize="12sp"
+                android:visibility="gone" />
 
 
             <TextView
@@ -68,26 +69,23 @@
 
             <RatingBar
                 android:id="@+id/app_rating_bar"
-                style="@style/Base.Widget.AppCompat.RatingBar.Small"
+                style="@style/myRatingBar"
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content" />
         </LinearLayout>
 
-
-
-            <Button
-                android:id="@+id/app_btn_download"
-                android:layout_width="@dimen/dp_60"
-                android:layout_height="@dimen/dp_30"
-                android:textColor="#000000"
-                android:stateListAnimator="@null"
-                android:layout_gravity="center_vertical"
-                android:layout_marginRight="10dp"
-                android:background="@drawable/btn_shap_download"
-                android:text="下载中"
-                android:textSize="@dimen/sp_16"
-                android:visibility="visible" />
-
+        <Button
+            android:id="@+id/app_btn_download"
+            android:layout_width="@dimen/dp_60"
+            android:layout_height="@dimen/dp_30"
+            android:layout_gravity="center_vertical"
+            android:layout_marginRight="10dp"
+            android:background="@drawable/btn_shap_download"
+            android:stateListAnimator="@null"
+            android:text="下载中"
+            android:textColor="#000000"
+            android:textSize="@dimen/sp_16"
+            android:visibility="visible" />
 
         <TextView
             android:id="@+id/app_tv_installed"
@@ -97,10 +95,8 @@
             android:layout_marginRight="20dp"
             android:text="已安装"
             android:visibility="gone" />
-
-
     </LinearLayout>
 
-<!--    <include layout="@layout/include_line_horizontal" />-->
+    <!--    <include layout="@layout/include_line_horizontal" />-->
 
 </LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout-port/item_app.xml b/app/src/main/res/layout-port/item_app.xml
index 78953aa..22d4f90 100644
--- a/app/src/main/res/layout-port/item_app.xml
+++ b/app/src/main/res/layout-port/item_app.xml
@@ -68,7 +68,7 @@
 
             <RatingBar
                 android:id="@+id/app_rating_bar"
-                style="@style/Base.Widget.AppCompat.RatingBar.Small"
+                style="@style/myRatingBar"
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content" />
         </LinearLayout>
diff --git a/app/src/main/res/mipmap-hdpi/ic_launcher.png b/app/src/main/res/mipmap-hdpi/ic_launcher.png
index 98c6d14..5751902 100644
Binary files a/app/src/main/res/mipmap-hdpi/ic_launcher.png and b/app/src/main/res/mipmap-hdpi/ic_launcher.png differ
diff --git a/app/src/main/res/mipmap-mdpi/ic_launcher.png b/app/src/main/res/mipmap-mdpi/ic_launcher.png
index 98c6d14..5751902 100644
Binary files a/app/src/main/res/mipmap-mdpi/ic_launcher.png and b/app/src/main/res/mipmap-mdpi/ic_launcher.png differ
diff --git a/app/src/main/res/mipmap-xhdpi/ic_launcher.png b/app/src/main/res/mipmap-xhdpi/ic_launcher.png
index 98c6d14..5751902 100644
Binary files a/app/src/main/res/mipmap-xhdpi/ic_launcher.png and b/app/src/main/res/mipmap-xhdpi/ic_launcher.png differ
diff --git a/app/src/main/res/mipmap-xxhdpi/ic_launcher.png b/app/src/main/res/mipmap-xxhdpi/ic_launcher.png
index 98c6d14..5751902 100644
Binary files a/app/src/main/res/mipmap-xxhdpi/ic_launcher.png and b/app/src/main/res/mipmap-xxhdpi/ic_launcher.png differ
diff --git a/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png b/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png
index 98c6d14..5751902 100644
Binary files a/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png and b/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png differ
diff --git a/app/src/main/res/values/styles.xml b/app/src/main/res/values/styles.xml
index b2f6b11..43c625b 100644
--- a/app/src/main/res/values/styles.xml
+++ b/app/src/main/res/values/styles.xml
@@ -40,4 +40,12 @@
         <!--背景是否模糊显示-->
         <item name="android:backgroundDimEnabled">true</item>
     </style>
+
+    <style name="myRatingBar"
+        parent="@android:style/Widget.RatingBar">
+        <item name="android:progressDrawable">@drawable/my_ratingbar</item>
+        <item name="android:maxHeight">30dp</item>
+        <item name="android:minHeight">30dp</item>
+    </style>
+
 </resources>