Android 如何在网络呼叫后更新适配器
我将Kotlin与数据绑定和MVVM架构结合使用。我很难让适配器使用listAdapter在布局上填充数据。由于我使用的库，我不得不使用listAdapter（很遗憾，没有recyclerView）。这是我的密码： MainActivityViewModel.ktAndroid 如何在网络呼叫后更新适配器,android,kotlin,retrofit2,adapter,Android,Kotlin,Retrofit2,Adapter,我将Kotlin与数据绑定和MVVM架构结合使用。我很难让适配器使用listAdapter在布局上填充数据。由于我使用的库，我不得不使用listAdapter（很遗憾，没有recyclerView）。这是我的密码： MainActivityViewModel.kt class MainActivityViewModel : ViewModel() { private val movieService: MovieService = RetrofitBuilder.createServic
class MainActivityViewModel : ViewModel() {
private val movieService: MovieService = RetrofitBuilder.createService()
fun getMovieData(): ArrayList<MovieDataModel> {
val call = movieService.getCurrentlyPlayingMovies(API_KEY)
val movieList = ArrayList<MovieDataModel>(10)
call.enqueue(object : Callback<MovieDataResponse> {
override fun onResponse(call: Call<MovieDataResponse>, response: Response<MovieDataResponse>) {
for (i in 0 until 10) {
movieList.add(response.body()?.results?.get(i)!!)
}
}
override fun onFailure(call: Call<MovieDataResponse>, t: Throwable) {
}
})
return movieList
}
}
class MovieDataResponse(val results: List<MovieDataModel>)
class MovieDataModel(val title: String, val overview: String, val release_date: String, val vote_count: String)
getMovieData（）enqueueLiveDataclass MainActivityViewModel : ViewModel() {
val movieLiveList: MutableLiveData<ArrayList<MovieDataModel>> = MutableLiveData()
...
fun getMovieData() {
val call = movieService.getCurrentlyPlayingMovies(API_KEY)
val movieList = ArrayList<MovieDataModel>(10)
call.enqueue(object : Callback<MovieDataResponse> {
override fun onResponse(call: Call<MovieDataResponse>, response: Response<MovieDataResponse>) {
for (i in 0 until 10) {
movieList.add(response.body()?.results?.get(i)!!)
}
movieLiveList.postValue(movieList)
}
override fun onFailure(call: Call<MovieDataResponse>, t: Throwable) {
}
})
}
}
class MainActivityViewModel:ViewModel（）{
val movieLiveList:MutableLiveData=MutableLiveData（）
...
fun getMovieData（）{
val call=movieService.getCurrentlyPlayingMovies（API_键）
val movieList=ArrayList（10）
排队（对象：Callback{
覆盖fun onResponse（调用：调用，响应：响应）{
对于（从0到10的i）{
movieList.add（response.body（）？.results？.get（i）！！）
}
movieList.postValue（movieList）
}
覆盖失效时的乐趣（调用：调用，t:可丢弃）{
}
})
}
}
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
binding = DataBindingUtil.setContentView(this, R.layout.activity_main)
val mainActivityViewModel = ViewModelProviders.of(this).get(MainActivityViewModel::class.java)
binding.viewModel = mainActivityViewModel
val movieList = arrayListOf<MovieDataModel>()
val movieAdapter = MovieAdapter(movieList, this)
binding.wheelview.adapter = movieAdapter
mainActivityViewModel.movieLiveList.observe(this, Observer { movies ->
movieList = movies
movieAdapter.notifyDataSetChanged()
})
}
override-fun-onCreate（savedInstanceState:Bundle？）{
super.onCreate（savedInstanceState）
binding=DataBindingUtil.setContentView（this，R.layout.activity\u main）
val mainActivityViewModel=ViewModelProviders.of（this）.get（mainActivityViewModel:：class.java）
binding.viewModel=mainActivityViewModel
val movieList=arrayListOf（）
val movieAdapter=movieAdapter（movieList，this）
binding.wheelview.adapter=电影适配器
mainActivityViewModel.movieLiveList.observe（这个，观测者{movies->
电影演员
movieAdapter.notifyDataSetChanged（）
})
}
JsonJsonmovieList.add（response.body（）？.results？.get（i）！！）response.body（）？.results？.get（I）！！。titleMovieDataResponse{
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80,
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],
"title": "Joker",
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"release_date": "2019-10-04"
},
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"title": "Terminator: Dark Fate",
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class MainActivityViewModel : ViewModel() {
val movieLiveList: MutableLiveData<ArrayList<MovieDataModel>> = MutableLiveData()
...
fun getMovieData() {
val call = movieService.getCurrentlyPlayingMovies(API_KEY)
val movieList = ArrayList<MovieDataModel>(10)
call.enqueue(object : Callback<MovieDataResponse> {
override fun onResponse(call: Call<MovieDataResponse>, response: Response<MovieDataResponse>) {
for (i in 0 until 10) {
movieList.add(response.body()?.results?.get(i)!!)
}
movieLiveList.postValue(movieList)
}
override fun onFailure(call: Call<MovieDataResponse>, t: Throwable) {
}
})
}
}
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
binding = DataBindingUtil.setContentView(this, R.layout.activity_main)
val mainActivityViewModel = ViewModelProviders.of(this).get(MainActivityViewModel::class.java)
binding.viewModel = mainActivityViewModel
val movieList = arrayListOf<MovieDataModel>()
val movieAdapter = MovieAdapter(movieList, this)
binding.wheelview.adapter = movieAdapter
mainActivityViewModel.movieLiveList.observe(this, Observer { movies ->
movieList = movies
movieAdapter.notifyDataSetChanged()
})
}