[英]How to combine two Adapter from call response in Android Java?
Is there a way to combine two adapters that are inside a Callback from Model?有没有办法组合模型回调中的两个适配器? Like, I get data from two sources and I want to display both of them in the same recyclerView
就像,我从两个来源获取数据,我想在同一个 recyclerView 中显示它们
I tried to load the method first then put both adapters on concatAdapter but I got a null from this concatAdapter and then my app crashed我尝试先加载该方法,然后将两个适配器都放在 concatAdapter 上,但是我从这个 concatAdapter 中得到了一个空值,然后我的应用程序崩溃了
here is my method in Java这是我在 Java 中的方法
private void fetchDataKabupaten(){
progressBar.setVisibility(View.VISIBLE);
token = getIntent().getStringExtra("token");
Call<KabupatenModel> kabupatenModelCall = RetrofitClient.getLoginInterface().getKabupatenData("Bearer "+token);
kabupatenModelCall.enqueue(new Callback<KabupatenModel>() {
@Override
public void onResponse(Call<KabupatenModel> call, Response<KabupatenModel> response) {
kabupatenList = response.body().getKabupaten();
adKabupaten = new KabupatenAdapter(MainActivity.this, kabupatenList);
progressBar.setVisibility(View.GONE);
}
}
private void fetchDataKecamatan(){
progressBar.setVisibility(View.VISIBLE);
token = getIntent().getStringExtra("token");
Call<KecamatanModel> kecamatanModelCall = RetrofitClient.getLoginInterface().getKecamatanData("Bearer " + token);
kecamatanModelCall.enqueue(new Callback<KecamatanModel>() {
@Override
public void onResponse(Call<KecamatanModel> call, Response<KecamatanModel> response) {
kecamatanList = response.body().getKecamatan();
adKecamatan = new KecamatanAdapter(MainActivity.this, kecamatanList);
progressBar.setVisibility(View.GONE);
}
}
I have tried to call both in MainActivity then setAdapter with concatAdapter like this:我尝试在 MainActivity 中调用两者,然后使用 concatAdapter 调用 setAdapter,如下所示:
fetchDataKabupaten();
fetchDataKecamatan();
concatAdapter = new ConcatAdapter(adKecamatan, adKabupaten);
rV.setAdapter(concatAdapter);
why is it null?为什么它是空的? but, when I only set one Adapter inside the response method it works.
但是,当我只在响应方法中设置一个适配器时,它就起作用了。
you can only use one adapter in recyclerview, but adapter can have multiple view.在 recyclerview 中只能使用一个适配器,但适配器可以有多个视图。
for example I have adapter for chat, with right and left view例如我有用于聊天的适配器,具有左右视图
Adapter Chat Detail适配器聊天详情
class AdapterChatDetail(val datas: ArrayList<ChatMessage>) :
RecyclerView.Adapter<RecyclerView.ViewHolder>() {
private lateinit var ctx: Context
companion object {
const val LEFT = 0
const val RIGHT = 1
}
inner class ViewHolderLeft(val binding: AdapterMyChatLeftBinding) :
RecyclerView.ViewHolder(binding.root) {
fun bind(data: ChatMessage) {
}
}
inner class ViewHolderRight(val binding: AdapterMyChatRightBinding) :
RecyclerView.ViewHolder(binding.root) {
fun bind(data: ChatMessage) {
}
}
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): RecyclerView.ViewHolder {
ctx = parent.context
return when (viewType) {
LEFT -> ViewHolderLeft(
AdapterMyChatLeftBinding.inflate(
LayoutInflater.from(ctx),
parent,
false
)
)
RIGHT -> ViewHolderRight(
AdapterMyChatRightBinding.inflate(
LayoutInflater.from(ctx),
parent,
false
)
)
else -> ViewHolderLeft(
AdapterMyChatLeftBinding.inflate(
LayoutInflater.from(ctx),
parent,
false
)
)
}
}
override fun onBindViewHolder(holder: RecyclerView.ViewHolder, position: Int) {
when (getItemViewType(position)) {
LEFT -> (holder as ViewHolderLeft).bind(datas[position])
RIGHT -> (holder as ViewHolderRight).bind(datas[position])
}
}
override fun getItemCount() = datas.size
override fun getItemViewType(position: Int): Int {
val data = datas[position]
return if (data.position == "right") RIGHT else LEFT
}
}
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