diff --git a/.idea/caches/build_file_checksums.ser b/.idea/caches/build_file_checksums.ser
index 1cd5a18..0546fdb 100644
Binary files a/.idea/caches/build_file_checksums.ser and b/.idea/caches/build_file_checksums.ser differ
diff --git a/.idea/misc.xml b/.idea/misc.xml
index 6aa8ff1..959260d 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -1,8 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="ExternalStorageConfigurationManager" enabled="true" />
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_7" default="false" project-jdk-name="1.8" project-jdk-type="JavaSDK">
-    <output url="file://$PROJECT_DIR$/build/classes" />
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_11" default="false" project-jdk-name="11" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/app/build/classes" />
   </component>
   <component name="ProjectType">
     <option name="id" value="Android" />
diff --git a/app/build.gradle b/app/build.gradle
index 0360201..ecff73b 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -43,9 +43,6 @@ android {
 
 dependencies {
     implementation fileTree(include: ['*.jar'], dir: 'libs')
-    androidTestImplementation('com.android.support.test.espresso:espresso-core:2.2.2', {
-        exclude group: 'com.android.support', module: 'support-annotations'
-    })
     implementation files('libs/Baidu_Mtj_3.9.0.6.jar')
     implementation 'com.android.support:appcompat-v7:28.0.0'
     implementation 'com.android.support:cardview-v7:28.0.0'
@@ -53,4 +50,7 @@ dependencies {
     implementation 'com.github.zcweng:switch-button:0.0.3@aar'
     implementation 'com.github.clans:fab:1.6.4'
     testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'com.android.support.test:rules:1.0.2'
+    androidTestImplementation 'com.android.support.test:runner:1.0.2'
+    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
 }
diff --git a/build.gradle b/build.gradle
index 1f3e8d2..1ec92df 100644
--- a/build.gradle
+++ b/build.gradle
@@ -2,12 +2,11 @@
 
 buildscript {
     repositories {
-        maven {url 'http://maven.aliyun.com/nexus/content/repositories/jcenter'}
         google()
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.3.1'
+        classpath 'com.android.tools.build:gradle:3.1.0'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index dbd058c..be37285 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-5.1-milestone-1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.2.1-all.zip