diff --git a/app/build.gradle b/app/build.gradle
index 0ae1399..0c01f57 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -1,11 +1,11 @@
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 26
+    compileSdkVersion 28
     defaultConfig {
         applicationId "com.weilu.remotecontrolview.remotecontrolview"
         minSdkVersion 15
-        targetSdkVersion 26
+        targetSdkVersion 28
         versionCode 1
         versionName "1.0"
     }
@@ -20,8 +20,8 @@ android {
 dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
     testImplementation 'junit:junit:4.12'
-    implementation 'com.android.support:appcompat-v7:26.1.0'
-    implementation 'com.android.support:recyclerview-v7:26.1.0'
+    implementation 'com.android.support:appcompat-v7:28.0.0'
+    implementation 'com.android.support:recyclerview-v7:28.0.0'
     implementation 'com.ogaclejapan.smarttablayout:library:1.6.1@aar'
     implementation 'com.ogaclejapan.smarttablayout:utils-v4:1.6.1@aar'
 }
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 4399a60..7a4b9cd 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -9,6 +9,11 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/AppTheme">
+
+        <meta-data
+            android:name="android.max_aspect"
+            android:value="2.4" />
+
         <activity android:name="com.weilu.customview.MainActivity">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN"/>
diff --git a/build.gradle b/build.gradle
index e6b32bc..8d3ef8e 100644
--- a/build.gradle
+++ b/build.gradle
@@ -7,7 +7,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.0.1'
+        classpath 'com.android.tools.build:gradle:3.2.1'
         
 
         // NOTE: Do not place your application dependencies here; they belong
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 2f75a6d..025556c 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Tue Mar 06 10:12:25 CST 2018
+#Fri Dec 07 10:57:17 CST 2018
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-all.zip