我有一个android应用程序,我需要从web api获取数据并将其保存到数据库中。如何获取数据与改造并保存到数据库
我使用改造连接到web api,我也使用活动的android。
所以这是我到目前为止创建:
我的表模型“合作伙伴”,我是从网上API获取并保存到这个表中的合作伙伴,其中的数据。
@Table(name = "Partners")
public class Partners extends Model {
@Expose
@Column(name = "Name")
public String name;
public Partners() {}
public List<Partners> getPartners() { return getMany(Partners.class, "Partners");}
}
我创建ApiService
public interface APIService {
@GET("Partners")
Call<Partners> getPartners();
}
我有API帮手
public class APIHelper {
public static APIService apiService;
public static APIService getApiService() {
if (apiService == null) {
Retrofit retrofit = new Retrofit.Builder().baseUrl("https://here-is-part-of-link/partners.json")
.addConverterFactory(GsonConverterFactory.create()).build();
apiService = retrofit.create(APIService.class);
}
return apiService;
}
}
的,这是我的片段,我正在试图调用方法从网页API数据。
public class MainFragment extends Fragment implements Callback<Partners> {
Button shippingFragment, deliveryFragment, measurementFragment, takeOversFragment;
private Call<Partners> call;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup parent, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.main_fragment, parent, false);
getActivity().setTitle("Title");
shippingFragment = (Button) view.findViewById(R.id.shipping);
deliveryFragment = (Button) view.findViewById(R.id.delivery);
measurementFragment = (Button) view.findViewById(R.id.measurement);
takeOversFragment = (Button) view.findViewById(R.id.take_overs);
shippingFragment.setOnClickListener(btnFragmentListener);
deliveryFragment.setOnClickListener(btnFragmentListener);
measurementFragment.setOnClickListener(btnFragmentListener);
takeOversFragment.setOnClickListener(btnFragmentListener);
call = APIHelper.getApiService().getPartners();
call.enqueue(this);
return view;
}
Button.OnClickListener btnFragmentListener = (new Button.OnClickListener() {
@Override
public void onClick(View v) {
Fragment fragment = null;
Intent intent = null;
switch (v.getId()) {
case R.id.shipping:
fragment = new ShippingFragment();
replaceFragment(fragment);
break;
case R.id.delivery:
fragment = new DeliveryMain();
replaceFragment(fragment);
break;
case R.id.measurement:
intent = new Intent(getActivity(), MeasurementMain.class);
startActivity(intent);
break;
case R.id.take_overs:
intent = new Intent(getActivity(), AllLogs.class);
startActivity(intent);
break;
}
}
});
public void replaceFragment(android.support.v4.app.Fragment rFragment) {
FragmentTransaction transaction = getFragmentManager().beginTransaction();
transaction.replace(R.id.fragment_holder, rFragment);
transaction.addToBackStack(null);
transaction.commit();
}
final Callback<List<Partners>> partnersCallback = new Callback<List<Partners>>() {
@Override
public void onResponse(Call<List<Partners>> call, Response<List<Partners>> response) {
for(Partners partners) {
partners.save();
}
}
@Override
public void onFailure(Call<List<Partners>> call, Throwable t) {
}
};
}
问题:我将不胜感激,如果有人可以告诉我,我做错了什么在这里,引导我到正确的方向?
编辑:
你还没说什么是错的这个代码 –
@ cricket_007的东西是错误的是这部分代码破解并且不会保存到表伙伴中。 – RubyDigger19
请添加logcat或编译错误信息 –