将从Retrofit获取的数据附加到适配器时，应用程序崩溃

// 定义Retrofit接口
public interface ApiService {
    @GET("endpoint")
    Call<List<DataModel>> getData();
}

// 创建Retrofit实例
Retrofit retrofit = new Retrofit.Builder()
    .baseUrl("https://api.example.com/")
    .addConverterFactory(GsonConverterFactory.create())
    .build();

ApiService apiService = retrofit.create(ApiService.class);

// 在后台线程执行网络请求
apiService.getData().enqueue(new Callback<List<DataModel>>() {
    @Override
    public void onResponse(Call<List<DataModel>> call, Response<List<DataModel>> response) {
        if (response.isSuccessful() && response.body() != null) {
            List<DataModel> data = response.body();
            // 在主线程更新UI
            runOnUiThread(() -> {
                adapter.setData(data);
                adapter.notifyDataSetChanged();
            });
        } else {
            // 处理错误情况
            Log.e("API Error", "Response not successful");
        }
    }

    @Override
    public void onFailure(Call<List<DataModel>> call, Throwable t) {
        // 处理失败情况
        Log.e("API Failure", t.getMessage());
    }
});

// 适配器类
public class MyAdapter extends RecyclerView.Adapter<MyAdapter.ViewHolder> {
    private List<DataModel> data = new ArrayList<>();

    public void setData(List<DataModel> newData) {
        this.data = newData;
    }

    // 其他适配器方法...
}