api 연결 모듈 개발

@@ -11,6 +11,7 @@
         android:label="@string/app_name"
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
+        android:networkSecurityConfig="@xml/network_security_config"
         android:theme="@style/Theme.AppCompat.NoActionBar">
         <activity android:name=".ui.SplashActivity"
             android:screenOrientation="fullSensor"

+package com.sunnni.smartdoorlock.api;
+
+import android.os.Handler;
+import android.util.Log;
+
+import com.google.gson.JsonArray;
+import com.google.gson.JsonElement;
+import com.google.gson.JsonObject;
+import com.google.gson.JsonParser;
+
+import org.json.JSONObject;
+
+import java.io.BufferedInputStream;
+import java.io.BufferedReader;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.OutputStream;
+import java.net.HttpURLConnection;
+import java.net.URL;
+
+public class Api {
+    public interface Callback {
+        void callbackMethod(Object obj);
+    }
+
+    static private final String DOMAIN = "gateway.bu.to:8000";
+    static private String accessToken = null;
+
+    static private void callApi(final String method, final String endpoint, final JsonObject params, final Callback callback) {
+        final Handler handler = new Handler();
+        new Thread() {
+            public void run() {
+                ApiResult apiResult;
+                try {
+                    Log.d("test", "callApi");
+                    URL url = new URL("http://" + Api.DOMAIN + endpoint);
+                    HttpURLConnection conn = (HttpURLConnection) url.openConnection();
+                    conn.setRequestMethod(method);
+
+                    if(accessToken != null) {
+                        conn.setRequestProperty("access_token", accessToken);
+                    }
+
+                    if("POST".equals(method) || "PUT".equals(method)) {
+                        if(params == null) {
+                            throw new Exception("params is null");
+                        }
+                        OutputStream os = conn.getOutputStream();
+                        os.write(params.toString().getBytes());
+                        os.flush();
+                        os.close();
+                    }
+
+                    StringBuilder builder = new StringBuilder();
+                    InputStream is = conn.getInputStream();
+                    BufferedReader reader = new BufferedReader(new InputStreamReader(is, "UTF-8"));
+                    String line;
+                    while((line = reader.readLine()) != null) {
+                        builder.append(line);
+                    }
+
+                    Log.d("http result", builder.toString());
+
+                    JsonElement jsonElement = JsonParser.parseString(builder.toString());
+
+                    apiResult = new ApiResult(true, jsonElement);
+                } catch (Exception e) {
+                    e.printStackTrace();
+                    apiResult = new ApiResult(false, e.getMessage());
+                }
+
+                final ApiResult finalApiResult = apiResult;
+                handler.post(new Runnable() {
+                    @Override
+                    public void run() {
+                        callback.callbackMethod(finalApiResult);
+                    }
+                });
+            }
+        }.start();
+    }
+}

+package com.sunnni.smartdoorlock.api;
+
+public class ApiResult {
+    public String getError() {
+        return this.error;
+    }
+
+    public boolean isError() {
+        return this.error != null;
+    }
+
+    public Object getData() {
+        return this.data;
+    }
+
+    public void setError(String error) {
+        this.error = error;
+    }
+
+    public void setData(Object data) {
+        this.data = data;
+    }
+
+    public ApiResult(boolean result, Object obj) {
+        if(result) {
+            this.data = obj;
+        } else {
+            this.error = (String) obj;
+        }
+    }
+
+    private String error;
+    private Object data;
+}

+<?xml version="1.0" encoding="utf-8"?>
+<network-security-config>
+    <!--Set application-wide security config using base-config tag.-->
+    <base-config cleartextTrafficPermitted="true"/>
+</network-security-config>
\ No newline at end of file

@@ -8,7 +8,7 @@ buildscript {
         
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.6.1'
+        classpath 'com.android.tools.build:gradle:3.6.3'
         
 
         // NOTE: Do not place your application dependencies here; they belong