Android Retrofit+LiveData+ViewModel架构
1、build.gradle添加依赖 //jetpack组件库 api 'androidx.lifecycle:lifecycle-livedata-ktx:2.2.0' api 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.2.0' api "com.google.code.gson:gson:2.8.5" //retrofit网络请求和okhttp网络请求 api "com.squ
