我遇到ViewPager问题的麻烦。 我有一个viewpager，其中有许多视图（选项卡），这些视图根据代理的大小以及根据检索的JSON的内容生成。每个页面代表一个代理商（请参见下面的JSON）。 对于每个页面，我希望能够显示代理的名称和模型的图像。 我在每一页上都正确地获得了代理商的名称，但是对于模型的照片，在所有其他页面上都重复了相同的图像。
我的片段内容：
public class MyFragment extends Fragment {
private int page, campagneId, agenceId;
private String agenceName;
private List<MyModel> models;
RecyclerView rc;
public static MyFragment newInstance() {
return new MyFragment();
}
@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
page = getArguments().getInt("position", 0);
campagneId = getArguments().getInt("campagneId", 1);
Log.e("campagneId", "onCreate: "+campagneId );
agenceName = agenceName.campagne(getContext(),campagneId).get(page).getagenceNameText();
agenceId = agenceName.campagne(getContext(),campagneId).get(page).getId();
}
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container,
@Nullable Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_second, container, false);
initViews(view, ""+agenceName, agenceId, models);
return view;
}
private void initViews(View view, String agenceName,int id, List<MyModel> modelList) {
TextView textView=view.findViewById(R.id.tv_agenceName);
textView.setText(agenceName);
rc = view.findViewById(R.id.rc_models_id);
rc.setLayoutManager(new GridLayoutManager(getContext(), 3));
rc.setAdapter(new MyModeladapter(modelList, R.layout.model_item, getContext()));
}
@Override
public void onActivityCreated(@Nullable Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
}
@Override
public void onAttach(Context context) {
super.onAttach(context);
}
@Override
public void onPause() {
super.onPause();
}
@Override
public void onResume() {
super.onResume();
}
@Override
public void onStop() {
super.onStop();
}
@Override
public void onDestroyView() {
super.onDestroyView();
}
@Override
public void onDestroy() {
super.onDestroy();
}
}
我的活动
public class MyActivity extends AppCompatActivity{
private static final String TAG = "MyActivity";
private ViewPager viewPager;
private TabLayout mTabLayout;
Bundle extra;
Intent i;
StepperIndicator indicator;
private String key;
private int campagneId;
ApiService service;
Context mContext;
private List<Agence> agences = new ArrayList<>();
private List<Model> models = new ArrayList<>();
Call<AgenceModel> call;
MainPagerAdapter mMainPagerAdapter;
private String q;
private List<Model> r;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mContext = this;
service = RetrofitBuilder.createService(ApiService.class);
mMainPagerAdapter = new MainPagerAdapter(getSupportFragmentManager(), 3,campageId);
i = getIntent();
extra = i.getExtras();
key = extra.getString("key");
campagneId = extra.getInt("campagneId",1);
Log.e("campageIdLB", "onCreate: "+campageId );
viewPager = findViewById(R.id.viewpager);
mTabLayout = findViewById(R.id.tabs);
viewPager.setOffscreenPageLimit(5);
viewPager.addOnPageChangeListener(new TabLayout.TabLayoutOnPageChangeListener(mTabLayout));
mTabLayout.setOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
@Override
public void onTabSelected(TabLayout.Tab tab) {
viewPager.setCurrentItem(tab.getPosition());
}
@Override
public void onTabUnselected(TabLayout.Tab tab) {
}
@Override
public void onTabReselected(TabLayout.Tab tab) {
}
});
getDatas(key);
}
private void getDatas(String s) {
Constant.dialog(mContext, getString(R.string.wait));
Constant.showDialog();
call = service.getspecificSurvey(s);
call.enqueue(new Callback<AgenceModel>() {
@Override
public void onResponse(Call<AgenceModel> call,
@NonNull Response<AgenceModel> response) {
Constant.hideDialog();
if (response.isSuccessful()) {
AgenceModel r = response.body();
Agences = r.getAgences();
for (int i = 0; i < r.getAgences().size(); i++) {
mTabLayout.addTab(mTabLayout.newTab().setText("Q " + i));
Agence.save(MyActivity.this, Agences.get(i));
Models = Agences.get(i).getModels();
for (int j = 0; j < Models.size(); j++) {
Model.save(MyActivity.this, Models.get(j));
}
}
MainPagerAdapter mMainPagerAdapter = new MainPagerAdapter(
getSupportFragmentManager(), mTabLayout.getTabCount(), campagneId);
viewPager.setAdapter(mMainPagerAdapter);
viewPager.setCurrentItem(0);
}
Toast.makeText(mContext, getString(R.string.succesfully),
Toast.LENGTH_SHORT).show();
}
@Override
public void onFailure(Call<AgenceModel> call, Throwable t) {
Constant.hideDialog();
Log.d(TAG, "failure" + t.fillInStackTrace());
Toast.makeText(mContext, getString(R.string.server_error),
Toast.LENGTH_SHORT).show();
}
});
}
}
我的MainPagerAdapter：
public class MainPagerAdapter extends FragmentStatePagerAdapter{
private int mNumOfTabs, campageId;
private Context mContext;
private LayoutInflater mLayoutInflater;
public MainPagerAdapter(FragmentManager fm, int NumOfTabs, int campageId) {
super(fm);
this.mNumOfTabs = NumOfTabs;
this.campageId = campageId;
//this.mLayoutInflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
@Override
public Fragment getItem(int position) {
Bundle b = new Bundle();
b.putInt("position", position);
b.putInt("campageId", campageId);
Fragment frag = LeadFragment.newInstance();
frag.setArguments(b);
return frag;
}
@Override
public int getCount() {
return mNumOfTabs;
}
}
JSON示例：
{
"campagne": {
"id": 1,
"year": 2018,
"author": "Katy Roman",
"close_date": "2019-03-20",
"created_at": "2018-08-17 19:58:30",
"updated_at": "2018-08-17 19:58:30",
"deleted_at": null,
"finish": 0
},
"agences": [
{
"id": 2,
"agence_id": 1,
"agence_name": "Fashion Home",
"created_at": "2018-08-24 15:00:21",
"updated_at": "2018-09-03 22:26:39",
"deleted_at": null,
"models": [
{
"id": 1,
"agence_id": 1,
"model_id": 2,
"name": "Brunette"
"age": 25,
"picture": "bb-50.png",
"created_at": "2018-08-24 15:00:21",
"updated_at": "2018-09-03 21:09:28",
"deleted_at": null
},
{
"id": 2,
"agence_id": 1,
"model_id": 2,
"name": "Maria"
"age": 21,
"picture": "maria.png",
"created_at": "2018-08-24 15:00:21",
"updated_at": "2018-09-03 21:09:28",
"deleted_at": null
},
]
},
{
"id": 2,
"agence_id": 2,
"agence_name": "Paris lumière",
"created_at": "2018-08-24 15:00:21",
"updated_at": "2018-09-03 22:26:39",
"deleted_at": null,
"models": [
{
"id": 3,
"agence_id": 2,
"model_id": 2,
"name": "Angelina"
"age": 19,
"picture": "angelina-happy-50.png",
"created_at": "2018-08-24 15:00:21",
"updated_at": "2018-09-03 21:09:28",
"deleted_at": null
},
{
"id": 4,
"agence_id": 2,
"model_id": 2,
"name": "Lauraine"
"age": 22,
"picture": "miss_l_50.png",
"created_at": "2018-08-24 15:00:21",
"updated_at": "2018-09-03 21:09:28",
"deleted_at": null
},
{
"id": 5,
"agence_id": 2,
"model_id": 2,
"age": 21,
"name": "Laure"
"picture": "laure_cop_0.png",
"created_at": "2018-08-24 15:00:21",
"updated_at": "2018-09-03 21:09:28",
"deleted_at": null
},
]
}
]
}