加入安卓环境的国内镜像

app/android/build.gradle

@@ -1,5 +1,8 @@
 allprojects {
     repositories {
+        maven { url 'https://maven.aliyun.com/repository/google' }
+        maven { url 'https://maven.aliyun.com/repository/central' }
+        maven { url 'https://maven.aliyun.com/nexus/content/groups/public/' }
         google()
         mavenCentral()
     }

app/android/settings.gradle

@@ -10,6 +10,11 @@ pluginManagement {
     includeBuild("$flutterSdkPath/packages/flutter_tools/gradle")
 
     repositories {
+        maven { url 'https://maven.aliyun.com/repository/google' }
+        maven { url 'https://maven.aliyun.com/repository/central' }
+        maven { url 'https://maven.aliyun.com/nexus/content/groups/public/' }
+        maven { url 'https://maven.aliyun.com/nexus/content/repositories/gradle-plugin' }
+        maven { url 'https://jitpack.io' }
         google()
         mavenCentral()
         gradlePluginPortal()