Я публикую API в HomePageActivity и получаю Data, и я использую параметры, чтобы передать данные в NewFragment и показать их.
Теперь я хочу, чтобы, когда пользователь в NewFragment использовал swiperefresh, NewFragment вызывал функцию в HomePageActivty, а функция очищала данные и вызывала API post для получения новых данных и записи. в параметры для отправки на NewFragment, затем NewFragment перезагрузит новые данные и покажет их.
Я могу вызвать функцию в HomePageActivty и вызвать API post, но когда я хочу перезагрузить данные в NewFragment, он не может показать это!
Как я могу исправить эту проблему?
Вот мой HomePageActivity:
public class HomePageActivity extends AppCompatActivity {
public static String TAG = "HomePageActivity";
private postSectionsPagerAdapter mSectionsPagerAdapter;
private ViewPager mViewPager;
public static String[] HomeToNew_user_icon, HomeToNew_user_name, HomeToNew_post_time, HomeToNew_post_text, HomeToNew_post_img, HomeToNew_post_likes, HomeToNew_post_comments, HomeToNew_post_pid = null;
public static int NewArrayLength;
private static String token;
public static Context context;
@SuppressLint("ResourceType")
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_home_page);
context = HomePageActivity.this;
mSectionsPagerAdapter = new postSectionsPagerAdapter(getSupportFragmentManager());
mViewPager = findViewById(R.id.container);
mViewPager.setAdapter(mSectionsPagerAdapter);
token = MainActivity.memoryToken;
Toast.makeText(this,"Token in HomePage: " + token, Toast.LENGTH_SHORT).show();
new JSONTask_New(HomePageActivity.this, token, "0", block).execute("api");
TabLayout tabLayout = (TabLayout) findViewById(R.id.tabs);
tabLayout.setupWithViewPager(mViewPager);
tabLayout.getTabAt(0).setText(R.string.New_Tab);
tabLayout.getTabAt(1).setText(R.string.Hot_Tab);
}
public static void refresh_New_Data(){
initData();
reLoad();
}
public static void initData(){
HomeToNew_user_icon = null;
HomeToNew_user_name = null;
HomeToNew_post_time = null;
HomeToNew_post_text = null;
HomeToNew_post_img = null;
HomeToNew_post_likes = null;
HomeToNew_post_comments = null;
HomeToNew_post_pid = null;
NewArrayLength = 0;
}
public static void reLoad(){
new JSONTask_New(context, token, "0", "1").execute("http://52.69.75.199/cp/posts/");
Log.e(TAG, "REFRESH New(HomePage) ApiCall posts!");
}
public class postSectionsPagerAdapter extends FragmentPagerAdapter {
public postSectionsPagerAdapter(FragmentManager fm) {
super(fm);
}
@Override
public int getCount() {
return 2;
}
@Override
public Fragment getItem(int position) {
switch (position){
case 0:
return new NewFragment();
case 1:
return new HotFragment();
}
return null;
}
}
// Post New (GET).
public static class JSONTask_New extends AsyncTask<String, String, String> {
private Context context;
private String token;
private String type;
private String block;
public JSONTask_New(Context context, String token, String type, String block) {
this.context = context;
this.token = token;
this.type = type;
this.block = block;
}
@Override
protected String doInBackground(String... params) {
try {
String SERVER_WS_URL = params[0];
LinkedHashMap<String, String> parameter = new LinkedHashMap<>();
parameter.put("token", token);
parameter.put("type", "0");
parameter.put("block", "0");
return ApiCall.getWebserviceCall(SERVER_WS_URL, parameter);
} catch (Exception e) {
return null;
}
}
@Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
try {
if (result != null) {
JSONObject jsonObject = new JSONObject(result.toString());
String code = jsonObject.getString("code");
String desc = jsonObject.getString("desc");
if (Integer.valueOf(code) == 1) {
JSONArray jsonArray = jsonObject.getJSONArray("list");
HomeToNew_user_icon = new String[jsonArray.length()];
HomeToNew_user_name = new String[jsonArray.length()];
HomeToNew_post_time = new String[jsonArray.length()];
HomeToNew_post_text = new String[jsonArray.length()];
HomeToNew_post_img = new String[jsonArray.length()];
HomeToNew_post_likes = new String[jsonArray.length()];
HomeToNew_post_pid = new String[jsonArray.length()];
HomeToNew_post_comments = new String[jsonArray.length()];
NewArrayLength = jsonArray.length();
for(int i = 0; i < jsonArray.length(); i++){
JSONObject jsonObject_item = jsonArray.getJSONObject(i);
HomeToNew_user_icon[i] = jsonObject_item.getString("head");
HomeToNew_user_name[i] = jsonObject_item.getString("name");
HomeToNew_post_time[i] = jsonObject_item.getString("created");
HomeToNew_post_text[i] = jsonObject_item.getString("txt");
HomeToNew_post_img[i] = jsonObject_item.getString("img");
HomeToNew_post_likes[i] = jsonObject_item.getString("gd");
HomeToNew_post_comments[i] = jsonObject_item.getString("co");
HomeToNew_post_pid[i] = jsonObject_item.getString("pid");
}
} else {
Toast.makeText(context, "NewPost API code: " + code + ", desc: " + desc, Toast.LENGTH_SHORT).show();
}
} else {
Toast.makeText(context, "NewPost data null!", Toast.LENGTH_SHORT).show();
}
} catch (JSONException e) {
e.printStackTrace();
}
}
}
}
Вот мой NewFragment:
public class NewFragment extends Fragment {
public static String TAG = "NewFragment";
private RecyclerView postcardRecycler;
private ArrayList<PostCard> post_data = new ArrayList<>();
private PostCardImageAdapter adapter;
private String[] user_icon, user_name, post_time, post_text, post_img, post_likes, post_comments, post_pid = null;
private SwipeRefreshLayout swipeRefreshLayout;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.new_layout, container, false);
user_icon = HomePageActivity.HomeToNew_user_icon;
user_name = HomePageActivity.HomeToNew_user_name;
post_time = HomePageActivity.HomeToNew_post_time;
post_text = HomePageActivity.HomeToNew_post_text;
post_img = HomePageActivity.HomeToNew_post_img;
post_likes = HomePageActivity.HomeToNew_post_likes;
post_comments = HomePageActivity.HomeToNew_post_comments;
post_pid = HomePageActivity.HomeToNew_post_pid;
postcardRecycler = view.findViewById(R.id.new_layout_recycler);
for(int i = 0; i < HomePageActivity.NewArrayLength; i++){
post_data.add(new PostCard(user_icon[i], user_name[i], post_time[i], post_text[i], post_img[i], post_likes[i], post_comments[i], post_pid[i]));
}
final LinearLayoutManager layoutManager = new LinearLayoutManager(getActivity());
postcardRecycler.setLayoutManager(layoutManager);
adapter = new PostCardImageAdapter(getActivity(), post_data);
postcardRecycler.setAdapter(adapter);
swipeRefreshLayout = view.findViewById(R.id.new_layout_swipe_refresh);
swipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
@SuppressLint("ResourceType")
@Override
public void onRefresh() {
Log.e(TAG, "Enter New onRefresh!");
HomePageActivity.refresh_New_Data();
NewFragment fragment = new NewFragment();
getFragmentManager().beginTransaction().replace(R.id.container, fragment).commit();
swipeRefreshLayout.setRefreshing(false);
}
});
return view;
}
}
Вот мой new_layout:
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.SwipeRefreshLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/new_layout_swipe_refresh"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v7.widget.RecyclerView
android:id="@+id/new_layout_recycler"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scrollbars="vertical" />
</android.support.v4.widget.SwipeRefreshLayout>
Любая помощь будет принята с благодарностью.