Practice with Coroutines Flow, ViewModel and get data with Retrofit from two API
Project example for learn ViewModel, flow and Coroutines with fetching data with retrofit Api
Show data with logd on MainActivity.class onCreate() method
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
binding = ActivityMainBinding.inflate(layoutInflater)
setContentView(binding.root)
val networkHelper = NetworkHelper(this)
postViewModel =
ViewModelProvider(this, ViewModelFactory(networkHelper))[PostViewModel::class.java]
postViewModel.getUserWithPost().observe(this, Observer {
when (it) {
is UserResource.Loading -> {
Log.d(TAG, "onCreate: Loading...")
}
is UserResource.Error -> {
Log.d(TAG, "onCreate: ${it.message}")
}
is UserResource.Success -> {
Log.d(TAG, "onCreate: ${it.userWithPost.userList}")
Log.d(TAG, "onCreate: ${it.userWithPost.postList}")
}
}
})
Used Libraries
ViewModelScope
implementation "androidx.lifecycle:lifecycle-viewmodel-ktx:2.4.0"
Coroutines
implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-android:1.5.2'
implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-core:1.5.2'
Retrofit
implementation 'com.squareup.retrofit2:retrofit:2.9.0'
implementation 'com.squareup.retrofit2:converter-gson:2.9.0'
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