جلسه هفدهم | ساخت برنامه شبیه به اینستاگرام | نمایش لیست ها

public class PostProperty {

  String id,username,location,image,caption,profile;

  public PostProperty(String id, String username, String location, String image, String caption,String profile) {
      this.id = id;
      this.username = username;
      this.location = location;
      this.image = image;
      this.caption = caption;
      this.profile=profile;
  }

  public String getId() {
      return id;
  }

  public void setId(String id) {
      this.id = id;
  }

  public String getUsername() {
      return username;
  }

  public void setUsername(String username) {
      this.username = username;
  }

  public String getLocation() {
      return location;
  }

  public void setLocation(String location) {
      this.location = location;
  }

  public String getImage() {
      return image;
  }

  public void setImage(String image) {
      this.image = image;
  }

  public String getCaption() {
      return caption;
  }

  public void setCaption(String caption) {
      this.caption = caption;

  }

  public String getProfile() {
      return profile;
  }

  public void setProfile(String profile) {
      this.profile = profile;
  }
}

<?php
header("Content-type: application/json");

define('HOST','localhost');
define('USER','root');
define('PASS','');
define('DB','instagram');
$cnn = mysqli_connect(HOST,USER,PASS,DB);
if (!$cnn) {
die("Connection failed" );
}
?>

$stmt=$cnn->prepare(" select id, username, location, image, caption, profile from post");
$stmt-> exec ute();
$stmt ->bind_ result ($id, $username, $location ,$image, $caption, $profile);

while($stmt->fetch()){
   
   $temp=array();
   $temp['id']=$id;
   $temp['username']=$username;
   $temp['location']=$location;
   $temp['image']=$image;
   $temp['caption']=$caption;
   $temp['profile']=$profile;
   
   array_push($post,$temp);
}
echo json_encode($post);
mysqli_close($cnn);

?>

View view = inflater.inflate(R.layout.fragment_home, container, false);
recyclerView = view.findViewById(R.id.recyclerview);
layoutManager = new LinearLayoutManager(getContext(), LinearLayoutManager.VERTICAL, false);
allposts = new ArrayList<>();
adapter = new PostAdapter(getContext(), allposts);
recyclerView.setLayoutManager(layoutManager);
recyclerView.setAdapter(adapter);
queue = Volley.newRequestQueue(getContext());

loadPosts();

return view;

private void loadPosts() {
    StringRequest request = new StringRequest(Request.Method.GET, Server.server_address + "loadpost.php", new Response.Listener<String>() {
        @Override
        public void onResponse(String response) {
            try {
                JSONArray posts = new JSONArray(response);
                for (int i = 0; i < posts.length(); i++) {
                    JSONObject obj = posts.getJSONObject(i);
                    String image = obj.getString("image");
                    String id = obj.getString("id");
                    String caption = obj.getString("caption");
                    String location = obj.getString("location");
                    String username = obj.getString("username");
                    String profile = obj.getString("profile");
                    PostProperty post = new PostProperty(id, username, location, image, caption,profile);
                    allposts.add(post);
                    adapter.notifyDataSetChanged();
                }
            } catch (JSONException e) {
                Toast.makeText(getContext(), e.toString(), Toast.LENGTH_SHORT).show();
            }
        }
    }, new Response.ErrorListener() {
        @Override
        public void onErrorResponse(VolleyError error) {
            Toast.makeText(getContext(), error.toString(), Toast.LENGTH_SHORT);
        }
    });
    queue.add(request);

}

public class HomeFragment extends Fragment {
  RecyclerView recyclerView;
  LinearLayoutManager layoutManager;
  PostAdapter adapter;
  ArrayList<PostProperty> allposts;
  RequestQueue queue;

  public HomeFragment() {

  }

  public static HomeFragment newInstance() {
      HomeFragment fragment = new HomeFragment();
      return fragment;
  }

  @Override
  public void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);

  }

  @Override
  public View onCreateView(LayoutInflater inflater, ViewGroup container,
                            Bundle savedInstanceState) {
      View view = inflater.inflate(R.layout.fragment_home, container, false);
      recyclerView = view.findViewById(R.id.recyclerview);
      layoutManager = new LinearLayoutManager(getContext(), LinearLayoutManager.VERTICAL, false);
      allposts = new ArrayList<>();
      adapter = new PostAdapter(getContext(), allposts);
      recyclerView.setLayoutManager(layoutManager);
      recyclerView.setAdapter(adapter);
      queue = Volley.newRequestQueue(getContext());
      loadPosts();
      return view;
  }

  @Override
  public void onResume() {
      loadPosts();
      super.onResume();
  }

  private void loadPosts() {
      StringRequest request = new StringRequest(Request.Method.GET, Server.server_address + "loadpost.php", new Response.Listener<String>() {
          @Override
          public void onResponse(String response) {
              try {
                  JSONArray posts = new JSONArray(response);
                  for (int i = 0; i < posts.length(); i++) {
                      JSONObject obj = posts.getJSONObject(i);
                      String image = obj.getString("image");
                      String id = obj.getString("id");
                      String caption = obj.getString("caption");
                      String location = obj.getString("location");
                      String username = obj.getString("username");
                      String profile = obj.getString("profile");
                      PostProperty post = new PostProperty(id, username, location, image, caption,profile);
                      allposts.add(post);
                      adapter.notifyDataSetChanged();
                  }
              } catch (JSONException e) {
                  Toast.makeText(getContext(), e.toString(), Toast.LENGTH_SHORT).show();
              }
          }
      }, new Response.ErrorListener() {
          @Override
          public void onErrorResponse(VolleyError error) {
              Toast.makeText(getContext(), error.toString(), Toast.LENGTH_SHORT);
          }
      });
      queue.add(request);
  }
}

Context context;
LayoutInflater inflater;
List<PostProperty> allPosts;
public PostAdapter(Context context, List<PostProperty> allPosts) {
  this.context = context;
  inflater = inflater. from (context);
  this.allPosts = allPosts;

}

ادامه حیات سایت جاواپرو به حمایت مالی (دونیت) از طرف شما کاربر عزیز بستگی دارد....