网络加载+Recyclerview

参考视频:
https://www.bilibili.com/video/BV1TJ411v75g?p=6

用到的后台:https://github.com/TrillGates/SOBAndroidMiniWeb

下载成压缩包,然后启动jar包就行

bean类时使用gsonFormat自动生成的一个
代码:

public class MainActivity extends AppCompatActivity {
    private static final String TAG = "MainActivity";
    GetTextItemAdapter mAdapter;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        initView();
    }

    private void initView() {
        RecyclerView recyclerView = findViewById(R.id.result_list);
        recyclerView.setLayoutManager(new LinearLayoutManager(this));
        recyclerView.addItemDecoration(new RecyclerView.ItemDecoration() {
            @Override
            public void getItemOffsets(@NonNull Rect outRect, @NonNull View view, @NonNull RecyclerView parent, @NonNull RecyclerView.State state) {
                outRect.top = 5;
                outRect.bottom = 5;
            }
        });
        mAdapter = new GetTextItemAdapter();
        recyclerView.setAdapter(mAdapter);
    }

    public void loadJson(View view) {
//实际项目不能这么写
        new Thread(new Runnable() {
            @Override
            public void run() {
                try {
                    URL url = new URL("http://10.0.2.2:9102/get/text");
                    //URL url = new URL("https://api.sunofbeach.net/shop/api/discovery/categories");
                    HttpURLConnection connection = (HttpURLConnection) url.openConnection();
                    connection.setReadTimeout(10000);
                    connection.setRequestMethod("GET");
                    connection.connect();
                    int responseCode = connection.getResponseCode();
                    if (responseCode == 200) {
                        InputStream inputStream = connection.getInputStream();
                        BufferedReader bf = new BufferedReader(new InputStreamReader(inputStream));
                        StringBuilder response = new StringBuilder();
                        String json;
                        while ((json = bf.readLine())!=null)
                        {
                            response.append(json);
                        }
                        //Log.d(TAG, ""+line);
                        Gson gson = new Gson();
                        GetTextItem getTextItem = gson.fromJson(response.toString(),GetTextItem.class);
                        upDateUi(getTextItem);
                    }
                }catch (Exception e){
                    e.printStackTrace();
                }
            }
        }).start();

    }

    private void upDateUi(final GetTextItem getTextItem) {
        runOnUiThread(new Runnable() {
            @Override
            public void run() {
            mAdapter.setData(getTextItem);
            }
        });
    }
}

public class GetTextItemAdapter extends RecyclerView.Adapter<GetTextItemAdapter.ViewHolder> {
    private List<GetTextItem.DataBean> data = new ArrayList<>();
    @NonNull
    @Override
    public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        View inflate = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_get_text, parent, false);
        return new ViewHolder(inflate);
    }

    @Override
    public void onBindViewHolder(@NonNull ViewHolder holder, int position) {
        View view = holder.itemView;
        TextView title = view.findViewById(R.id.item_title);
        GetTextItem.DataBean dataBean = data.get(position);
        title.setText(dataBean.getTitle());
        ImageView imageView = view.findViewById(R.id.item_img);
        Glide.with(view.getContext()).load("http://10.0.2.2:9102"+dataBean.getCover()).into(imageView);
    }

    @Override
    public int getItemCount() {
        return data.size();
    }

    public void setData(GetTextItem getTextItem) {
        data.clear();
        data.addAll(getTextItem.getData());
        notifyDataSetChanged();
    }

    public class ViewHolder extends RecyclerView.ViewHolder {
        public ViewHolder(@NonNull View itemView) {
            super(itemView);
        }
    }
}