Added third level loading.

app/src/main/java/ru/volgorobot/vrcatalog/MainActivity.java

@@ -33,6 +33,7 @@ import ru.volgorobot.vrcatalog.api.Controller;
 import ru.volgorobot.vrcatalog.api.VRApi;
 import ru.volgorobot.vrcatalog.model.FirstLevelModel;
 import ru.volgorobot.vrcatalog.model.SecondLevelModel;
+import ru.volgorobot.vrcatalog.model.ThirdLevelModel;
 
 public class MainActivity extends AppCompatActivity
         implements NavigationView.OnNavigationItemSelectedListener, SwipeRefreshLayout.OnRefreshListener {
@@ -42,6 +43,8 @@ public class MainActivity extends AppCompatActivity
     private List<FirstLevelModel> firstLevelObjects = new ArrayList<>();
     private List<TreeNode> firstLevelNodes = new ArrayList<>();
     private List<SecondLevelModel> secondLevelObjects = new ArrayList<>();
+    private List<ThirdLevelModel> thirdLevelObjects = new ArrayList<>();
+
     private TreeNode rootNode = TreeNode.root();
     private SwipeRefreshLayout mSwipeRefreshLayout;
 
@@ -119,6 +122,9 @@ public class MainActivity extends AppCompatActivity
             firstLevelNodes.add(new TreeNode(firstLevelObjects.get(i).getName()));
             firstLevelNodes.get(i).setLevel(0);
             firstLevelNodes.get(i).setChildren(getSecondLevelNodesByParentID(firstLevelObjects.get(i).getID()));
+            for (int j = 0; j < firstLevelNodes.get(i).getChildren().size(); j++) {
+                firstLevelNodes.get(i).getChildren().get(j).setChildren(getThirdLevelNodesByParentName((String) firstLevelNodes.get(i).getChildren().get(j).getValue()));
+            }
         }
 
         rootNode.setChildren(firstLevelNodes);
@@ -139,6 +145,21 @@ public class MainActivity extends AppCompatActivity
         return nodes;
     }
 
+    private ArrayList<TreeNode> getThirdLevelNodesByParentName(String parentName) {
+        ArrayList<ThirdLevelModel> objects = new ArrayList<>();
+        for (int i = 0; i < thirdLevelObjects.size(); i++) {
+            if(thirdLevelObjects.get(i).getName().equals(parentName)) {
+                objects.add(thirdLevelObjects.get(i));
+            }
+        }
+        ArrayList<TreeNode> nodes = new ArrayList<>();
+        for (int i = 0; i < objects.size(); i++) {
+            nodes.add(new TreeNode(objects.get(i).getName()));
+            nodes.get(i).setLevel(2);
+        }
+        return nodes;
+    }
+
     @Override
     public void onRefresh() {
         mSwipeRefreshLayout.setRefreshing(true);
@@ -162,8 +183,10 @@ public class MainActivity extends AppCompatActivity
             for (int i = 0; i < secondLevelObjects.size(); i++) {
                 secondLevelObjects.remove(i);
             }
+            for (int i = 0; i < thirdLevelObjects.size(); i++) {
+                thirdLevelObjects.remove(i);
+            }
         }
-
         SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
         String baseURL = sharedPreferences.getString("addressOfServer", "");
 
@@ -172,9 +195,9 @@ public class MainActivity extends AppCompatActivity
         } catch(IllegalStateException e) {
             throw new IllegalStateException();
         }
-        class GetTreeData extends AsyncTask<Void, Void, Void> {
+        class GetTreeData extends AsyncTask<Void, Void, Integer> {
             @Override
-            protected Void doInBackground(Void... voids) {
+            protected Integer doInBackground(Void... voids) {
                 try {
                     Response<List<FirstLevelModel>> firstLevelResponse = vrApi.getFirstLevel().execute();
                     if(firstLevelResponse.isSuccessful()) {
@@ -184,22 +207,39 @@ public class MainActivity extends AppCompatActivity
                             if(secondLevelResponse.isSuccessful()) {
                                 secondLevelObjects.addAll(secondLevelResponse.body());
                             } else {
-                                onFailureAnswer(1);
+                                return 2;
                             }
                         }
+                        for (int i = 0; i < secondLevelObjects.size(); i++) {
+                            Response<List<ThirdLevelModel>> thirdLevelResponse = vrApi.getDetails(secondLevelObjects.get(i).getID()).execute();
+                            if(thirdLevelResponse.isSuccessful()) {
+                                thirdLevelObjects.addAll(thirdLevelResponse.body());
+                            } else {
+                                return 2;
+                            }
+                        }
+                    } else {
+                        return 2;
                     }
                 } catch (Exception e) {
-                    onFailureAnswer(0);
+                    return 1;
                 }
-                return null;
+                return 0;
             }
 
             @Override
-            protected void onPostExecute(Void aVoid) {
+            protected void onPostExecute(Integer integer) {
-                super.onPostExecute(aVoid);
+                super.onPostExecute(integer);
+                if(integer == 0) {
                     fillRootNode();
                     treeView.refreshTreeView();
                     mSwipeRefreshLayout.setRefreshing(false);
+                } else if(integer == 1) {
+                    onFailureAnswer(1);
+                } else if(integer == 2) {
+                    onFailureAnswer(2);
+                }
+
             }
         }
         new GetTreeData().execute();
@@ -207,15 +247,15 @@ public class MainActivity extends AppCompatActivity
 
     private void onFailureAnswer(int errorCode) {
         switch (errorCode) {
-            case 0: {
-                Toast.makeText(MainActivity.this, "Ошибка сети. Проверьте подключение к сети или данные подключения к API!", Toast.LENGTH_LONG).show();
-                Log.e("VRCatalog", "Network Error! Re-check your connection credentials or network settings!");
-                mSwipeRefreshLayout.setRefreshing(false);
-                break;
-            }
             case 1: {
+                Toast.makeText(MainActivity.this, "Ошибка сети. Проверьте подключение к сети или данные подключения к API!", Toast.LENGTH_LONG).show();
+                Log.e("VRCatalog", "Network Error! Re-check your connection credentials or network settings! Technical info: null");
+                mSwipeRefreshLayout.setRefreshing(false);
+                break;
+            }
+            case 2: {
                 Toast.makeText(MainActivity.this, "Ответ от сервера неверен! Перепроверьте данные подключения!", Toast.LENGTH_LONG).show();
-                Log.e("VRCatalog", "Answer of server is wrong! Re-check your connection credentials!");
+                Log.e("VRCatalog", "Answer of server is wrong! Re-check your connection credentials! Technical info: null");
                 mSwipeRefreshLayout.setRefreshing(false);
                 break;
             }

app/src/main/java/ru/volgorobot/vrcatalog/api/VRApi.java

@@ -7,6 +7,7 @@ import retrofit2.http.GET;
 import retrofit2.http.Query;
 import ru.volgorobot.vrcatalog.model.FirstLevelModel;
 import ru.volgorobot.vrcatalog.model.SecondLevelModel;
+import ru.volgorobot.vrcatalog.model.ThirdLevelModel;
 
 public interface VRApi {
 
@@ -15,4 +16,7 @@ public interface VRApi {
 
     @GET("/API/Api.php?action=getSecondLevel")
     Call<List<SecondLevelModel>> getSecondLevel(@Query("parentTypeID") int parentTypeID);
+
+    @GET("/API/Api.php?action=getDetailsByParentID")
+    Call<List<ThirdLevelModel>> getDetails(@Query("parentID") int parentID);
 }

app/src/main/java/ru/volgorobot/vrcatalog/model/FirstLevelModel.java

@@ -6,10 +6,6 @@ import com.google.gson.annotations.SerializedName;
 
 public class FirstLevelModel {
 
-    @SerializedName("Description")
-    @Expose
-    private Object description;
-
     @SerializedName("Name")
     @Expose
     private String name;
@@ -18,28 +14,14 @@ public class FirstLevelModel {
     @Expose
     private Integer iD;
 
-    @SerializedName("Enable")
-    @Expose
-    private Boolean enable;
 
     public FirstLevelModel() {
         // Empty constructor
     }
 
-    public FirstLevelModel(Object description, String name, Integer iD, Boolean enable) {
+    public FirstLevelModel(String name, Integer iD) {
-        super();
-        this.description = description;
         this.name = name;
         this.iD = iD;
-        this.enable = enable;
-    }
-
-    public Object getDescription() {
-        return description;
-    }
-
-    public void setDescription(Object description) {
-        this.description = description;
     }
 
     public String getName() {
@@ -58,12 +40,4 @@ public class FirstLevelModel {
         this.iD = iD;
     }
 
-    public Boolean getEnable() {
-        return enable;
-    }
-
-    public void setEnable(Boolean enable) {
-        this.enable = enable;
-    }
-
 }

app/src/main/java/ru/volgorobot/vrcatalog/model/SecondLevelModel.java

@@ -13,10 +13,6 @@ public class SecondLevelModel {
     @Expose
     private Integer detailTypeId;
 
-    @SerializedName("Description")
-    @Expose
-    private Object description;
-
     @SerializedName("Name")
     @Expose
     private String name;
@@ -25,10 +21,9 @@ public class SecondLevelModel {
         // Empty constructor
     }
 
-    public SecondLevelModel(Integer iD, Integer detailTypeId, Object description, String name) {
+    public SecondLevelModel(Integer iD, Integer detailTypeId, String name) {
         this.iD = iD;
         this.detailTypeId = detailTypeId;
-        this.description = description;
         this.name = name;
     }
 
@@ -48,14 +43,6 @@ public class SecondLevelModel {
         this.detailTypeId = detailTypeId;
     }
 
-    public Object getDescription() {
-        return description;
-    }
-
-    public void setDescription(Object description) {
-        this.description = description;
-    }
-
     public String getName() {
         return name;
     }

app/src/main/java/ru/volgorobot/vrcatalog/model/ThirdLevelModel.java

@@ -0,0 +1,62 @@
+package ru.volgorobot.vrcatalog.model;
+
+import com.google.gson.annotations.Expose;
+import com.google.gson.annotations.SerializedName;
+
+public class ThirdLevelModel {
+
+    @SerializedName("ID")
+    @Expose
+    private Integer iD;
+    @SerializedName("DetailSubTypeId")
+    @Expose
+    private Integer detailSubTypeId;
+    @SerializedName("Name")
+    @Expose
+    private String name;
+
+    /**
+     * No args constructor for use in serialization
+     *
+     */
+    public ThirdLevelModel() {
+    }
+
+    /**
+     *
+     * @param detailSubTypeId Parent category
+     * @param name Name of detail
+     * @param iD ID of detail
+     */
+    public ThirdLevelModel(Integer iD, Integer detailSubTypeId, String name) {
+        super();
+        this.iD = iD;
+        this.detailSubTypeId = detailSubTypeId;
+        this.name = name;
+    }
+
+    public Integer getID() {
+        return iD;
+    }
+
+    public void setID(Integer iD) {
+        this.iD = iD;
+    }
+
+    public Integer getDetailSubTypeId() {
+        return detailSubTypeId;
+    }
+
+    public void setDetailSubTypeId(Integer detailSubTypeId) {
+        this.detailSubTypeId = detailSubTypeId;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+}