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1f8c84b8b5f7565f11127bcaa95ca95e.txt

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+Подключение retrofit
+implementation 'com.squareup.retrofit2:retrofit:2.9.0'
+implementation 'com.squareup.retrofit2:converter-gson:2.5.0'
+
+table model
+прописать поля
+сделать 2 конструктора
+сделать конструктор для parcel (source.readInt())
+сделать геттеры и сеттеры
+сделать describeContents, writeToParcel(dest.writeInt(ID))
+прописать creator: public static final Parceable.Creator<tableGamesModel> CREATOR = Parceable.Creator<tableGamesModel>(){}
+там переопределить 2 метода createFromParcel (возвращает return new tableGamesModel(source)) и newArray(вместо 0 поставить size)
+
+adapter
+private context mContext;
+List<tableModel> tableList;
+
+Проставить поля генерейт
+
+public View getView(int position, View convertView, ViewGroup parent) {
+        View v = View.inflate(mContext, R.layout.item_layout, null);
+        TextView title = v.findViewById(R.id.titleTV);
+        TextView cost = v.findViewById(R.id.costTV);
+        TextView stock = v.findViewById(R.id.stockTV);
+        TextView store = v.findViewById(R.id.storeTV);
+        tableGamesModel games = gamesList.get(position);
+        title.setText(games.getTitle());
+        cost.setText(String.valueOf(games.getCost()));
+        stock.setText(String.valueOf(games.getStockAvailability()));
+        store.setText(String.valueOf(games.getAvailabilityInStore()));
+        return v;
+    }
+
+retrofit
+создаем интерфейс, делаем импорты
+import retrofit2.Call;
+import retrofit2.http.Body;
+import retrofit2.http.DELETE;
+import retrofit2.http.GET;
+import retrofit2.http.POST;
+import retrofit2.http.PUT;
+import retrofit2.http.Path;
+import retrofit2.http.Query;
+Пример написания методов:
+	@GET("apps/{id}")
+    Call<DataModal> getData(@Query("id") int id);
+
+    @POST("items")
+    Call<DataModal> createPost(@Body DataModal dataModal);
+
+    @PUT("apps/{id}")
+    Call<DataModal> updateData(@Path("id") int id, @Body DataModal dataModal);
+
+    @DELETE("apps/{id}")
+    Call<Void> deleteData(@Path("id") int id);
+
+для вывода в листвью
+
+	private adapterView adapter;
+    	private List<tableGamesModel> gamesList = new ArrayList<>();
+
+ 	ListView lvApps = findViewById(R.id.gamesLV);
+        adapter = new adapterView(main_Activity.this, gamesList);
+        lvApps.setAdapter(adapter);
+
+	private class fillList extends AsyncTask<Void, Void, String>
+{
+    @Override
+    protected String doInBackground(Void... voids)
+    {
+        try {
+            URL url =new URL("https://ngknn.ru:5001/NGKNN/МамшеваЮС/Экзамен/api/TableGames/sortByTableGames?typeOfSort={typeOfSort}&nameProduct={nameProduct}");
+            HttpURLConnection connection =(HttpURLConnection)url.openConnection();
+
+            BufferedReader reader =new BufferedReader(new InputStreamReader(connection.getInputStream()));
+
+            StringBuffer result = new StringBuffer();
+            String line = "";
+
+            while((line = reader.readLine()) != null)
+            {
+                result.append(line);
+            }
+            return result.toString();
+        }
+        catch (Exception e) {
+            return null;
+        }
+    }
+
+    @Override
+    protected void onPostExecute(String s)
+    {
+        super.onPostExecute(s);
+        try {
+            gamesList.clear();
+            JSONArray temp =new JSONArray();
+            for (int i=0;i <temp.length();i++)
+            {
+                JSONObject gameJS = temp.getJSONObject(i);
+                tableGamesModel tempArr = new tableGamesModel(
+                        gameJS.getInt("ID"),
+                        gameJS.getString("Title"),
+                        gameJS.getInt("Cost"),
+                        gameJS.getInt("StockAvailability"),
+                        gameJS.getInt("AvailabilityInStore"),
+                        gameJS.getString("Description"),
+                        gameJS.getString("Reviews"),
+                        gameJS.getString("Image")
+                );
+                gamesList.add(tempArr);
+                adapter.notifyDataSetInvalidated();
+            }
+        }
+        catch (Exception e){
+
+        }
+    }
+}
+
+
+private Bitmap getUserImage(String encodedImg)
+    {
+
+        if(encodedImg!=null&& !encodedImg.equals("null")) {
+            byte[] bytes = Base64.decode(encodedImg, Base64.DEFAULT);
+            return BitmapFactory.decodeByteArray(bytes, 0, bytes.length);
+        }
+        else
+        {
+            return null;
+        }
+    }
+
+Retrofit retrofit = new Retrofit.Builder()
+                .baseUrl("https://ngknn.ru:5001/NGKNN/МорозовАВ/api/")
+                .addConverterFactory(GsonConverterFactory.create())
+                .build();
+
+        RetrofitAPI retrofitAPI = retrofit.create(RetrofitAPI.class);
+        Call<DataModal> call = retrofitAPI.getData(MainActivity.index);
+        call.enqueue(new Callback<DataModal>() {
+            @Override
+            public void onResponse(Call<DataModal> call, Response<DataModal> response) {
+                id = response.body().getApp_id();
+                appName.setText(response.body().getAppName());
+                appAgeLimit.setText(Integer.valueOf(response.body().getAppAgeLimit()).toString());
+                appPrice.setText(Double.valueOf(response.body().getAppPrice()).toString());
+                encodedImage = response.body().getAppImage();
+                if(response.body().getAppImage() == null)
+                {
+                    image.setImageResource(R.drawable.empty);
+                }
+                else
+                {
+                    image.setImageBitmap(getImgBitmap(response.body().getAppImage()));
+                }
+            }
+
+            @Override
+            public void onFailure(Call<DataModal> call, Throwable t) {
+
+            }
+        });
+
+
+image = findViewById(R.id.appImageIV);
+        image.setOnClickListener(v -> {
+            Intent intent = new Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
+            intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
+            pickImg.launch(intent);        });
+
+private final ActivityResultLauncher<Intent> pickImg = registerForActivityResult(new ActivityResultContracts.StartActivityForResult(), result -> {
+        if (result.getResultCode() == RESULT_OK) {
+            if (result.getData() != null) {
+                Uri uri = result.getData().getData();
+                try {
+                    InputStream is = getContentResolver().openInputStream(uri);
+                    Bitmap bitmap = BitmapFactory.decodeStream(is);
+                    image.setImageBitmap(bitmap);
+                    encodedImage = encodeImage(bitmap);
+                } catch (Exception e) {
+
+                }
+            }
+        }
+    });
+
+    private String encodeImage(Bitmap bitmap) {
+        int prevW = 150;
+        int prevH = bitmap.getHeight() * prevW / bitmap.getWidth();
+        Bitmap b = Bitmap.createScaledBitmap(bitmap, prevW, prevH, false);
+        ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
+        b.compress(Bitmap.CompressFormat.JPEG, 50, byteArrayOutputStream);
+        byte[] bytes = byteArrayOutputStream.toByteArray();
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            return Base64.getEncoder().encodeToString(bytes);
+        }
+        return "";
+    }
+
+    private Bitmap getImgBitmap(String encodedImg) {
+        if (encodedImg != null) {
+            byte[] bytes = new byte[0];
+            if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) {
+                bytes = Base64.getDecoder().decode(encodedImg);
+            }
+            return BitmapFactory.decodeByteArray(bytes, 0, bytes.length);
+        }
+        return BitmapFactory.decodeResource(editApp.this.getResources(),
+                R.drawable.empty);
+    }
+
+
+
+
+private void deleteRecord(int index)
+    {
+        saveChangesBtn.setEnabled(false);
+        deleteBtn.setEnabled(false);
+        deletePhoto.setEnabled(false);
+
+        Retrofit retrofit = new Retrofit.Builder()
+                .baseUrl("https://ngknn.ru:5001/NGKNN/МорозовАВ/api/")
+                .addConverterFactory(GsonConverterFactory.create())
+                .build();
+        RetrofitAPI retrofitAPI = retrofit.create(RetrofitAPI.class);
+        Call call = retrofitAPI.deleteData(index);
+        call.enqueue(new Callback<DataModal>() {
+            @Override
+            public void onResponse(Call<DataModal> call, Response<DataModal> response) {
+                if(!response.isSuccessful())
+                {
+                    Toast.makeText(editApp.this, "При удание записи возникла ошибка", Toast.LENGTH_SHORT).show();
+                    return;
+                }
+                saveChangesBtn.setEnabled(false);
+                deleteBtn.setEnabled(false);
+                deletePhoto.setEnabled(false);
+
+                Toast.makeText(editApp.this, "Удаление прошло успешно", Toast.LENGTH_SHORT).show();
+                startActivity(new Intent(editApp.this, MainActivity.class));
+                finish();
+            }
+            @Override
+            public void onFailure(Call<DataModal> call, Throwable t) {
+
+            }
+        });
+    }
+
+
+private void putChanges(int id, String appName, double appPrice, int appAgeLimit, String picture) {
+
+        saveChangesBtn.setEnabled(false);
+        deleteBtn.setEnabled(false);
+        deletePhoto.setEnabled(false);
+
+        Retrofit retrofit = new Retrofit.Builder()
+                .baseUrl("https://ngknn.ru:5001/ngknn/морозовав/api/")
+                .addConverterFactory(GsonConverterFactory.create())
+                .build();
+        RetrofitAPI retrofitAPI = retrofit.create(RetrofitAPI.class);
+        DataModal modal = new DataModal(id, appName, appPrice, appAgeLimit, picture);
+        Call<DataModal> call = retrofitAPI.updateData(MainActivity.index, modal);
+        call.enqueue(new Callback<DataModal>() {
+            @Override
+            public void onResponse(Call<DataModal> call, Response<DataModal> response) {
+                if(response.isSuccessful())
+                {
+                    saveChangesBtn.setEnabled(true);
+                    deleteBtn.setEnabled(true);
+                    deletePhoto.setEnabled(true);
+
+                    Toast.makeText(editApp.this, "Изменение прошло успешно", Toast.LENGTH_SHORT).show();
+                    startActivity(new Intent(editApp.this, MainActivity.class));
+                    finish();
+                    return;
+                }
+                Toast.makeText(editApp.this, "Произошла ошибка", Toast.LENGTH_SHORT).show();
+            }
+
+            @Override
+            public void onFailure(Call<DataModal> call, Throwable t) {
+            }
+        });
+    }