写的比较简单，仅作备忘。
如果有问题，可以评论提问，我会及时答复。
分类页面：
public class ClassActivity extends AppCompatActivity {
private String childrenURL = "http://www.zhaoapi.cn/product/getProductCatagory";
private String classURL = "http://www.zhaoapi.cn/product/getCatagory";
private static final String TAG = "ClassActivity";
private RecyclerView recycler_class;
private RecyclerView recycler_children;
private List<ChildrenBean.DataBean> data1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_class_activity);
initView();
initData();
}
private void initView() {
recycler_class = findViewById(R.id.recycler_class);
recycler_children = findViewById(R.id.recycler_children);
}
private void initData() {
runOnUiThread(new Runnable() {
@Override
public void run() {
final HttpUtil instance = HttpUtil.getInstance();
instance.get(classURL, new Callback() {
private ClassAdapter adapter;
@Override
public void onFailure(Call call, IOException e) {
String message = e.getMessage();
}
@Override
public void onResponse(Call call, Response response) throws IOException {
String string = response.body().string();
Gson gson = new Gson();
ClassBean classBean = gson.fromJson(string, ClassBean.class);
final List<ClassBean.DataBean> data = classBean.getData();
adapter = new ClassAdapter(ClassActivity.this, data);
runOnUiThread(new Runnable() {
@Override
public void run() {
final LinearLayoutManager manager = new LinearLayoutManager(ClassActivity.this);
manager.setOrientation(LinearLayoutManager.VERTICAL);
recycler_class.setLayoutManager(manager);
recycler_class.setAdapter(adapter);
adapter.setOnItemClickListener(new ClassAdapter.OnItemClickListener() {
@Override
public void getcid(int cid, int position) {
//拼接子类商品Cid
String url = childrenURL + "?cid=" + cid;
Log.d(TAG, "getcid: " + url);
HttpUtil instance1 = HttpUtil.getInstance();
instance1.get(url, new Callback() {
@Override
public void onFailure(Call call, IOException e) {
String message = e.getMessage();
}
@Override
public void onResponse(Call call, Response response) throws IOException {
final String string1 = response.body().string();
runOnUiThread(new Runnable() {
@Override
public void run() {
Gson gson = new Gson();
ChildrenBean childrenBean = gson.fromJson(string1, ChildrenBean.class);
data1 = childrenBean.getData();
ChildrenAdapter adapter = new ChildrenAdapter(ClassActivity.this, data1);
LinearLayoutManager manager1 = new LinearLayoutManager(ClassActivity.this);
manager1.setOrientation(LinearLayoutManager.VERTICAL);
recycler_children.setLayoutManager(manager1);
recycler_children.setAdapter(adapter);
}
});
}
});
}
});
}
});
}
});
}
});
}
}
分类的接口回调，将商品id传至Activity页面
public class ClassAdapter extends RecyclerView.Adapter<ClassAdapter.Myholder> {
Context context;
List<ClassBean.DataBean> list;
private int cid = 1;
public ClassAdapter(Context context, List<ClassBean.DataBean> list) {
this.context = context;
this.list = list;
}
public interface OnItemClickListener {
void getcid(int cid,int position);
}
private OnItemClickListener listener;
public void setOnItemClickListener(OnItemClickListener listener) {
this.listener = listener;
}
@NonNull
@Override
public ClassAdapter.Myholder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
View inflate = LayoutInflater.from(context).inflate(R.layout.class_item, parent, false);
Myholder myholder = new Myholder(inflate);
return myholder;
}
@Override
public void onBindViewHolder(@NonNull ClassAdapter.Myholder holder, final int position) {
holder.class_title.setText(list.get(position).getName());
holder.class_title.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
cid = list.get(position).getCid();
listener.getcid(cid,position);
Toast.makeText(context, "ss"+cid, Toast.LENGTH_SHORT).show();
}
});
}
@Override
public int getItemCount() {
return list.size();
}
public class Myholder extends RecyclerView.ViewHolder {
private final TextView class_title;
private final RecyclerView recycler_children;
public Myholder(View itemView) {
super(itemView);
class_title = itemView.findViewById(R.id.class_title);
recycler_children = itemView.findViewById(R.id.recycler_children);
}
}
}
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作者：币圈小韭菜
来源：CSDN
原文：blog.csdn.net/liu_qunfeng…
版权声明：本文为博主原创文章，转载请附上博文链接！ |
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