Finished Project

.gitignore

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+*.iml
+.gradle
+/local.properties
+/.idea/workspace.xml
+/.idea/libraries
+.DS_Store
+/build
+/captures
+.externalNativeBuild

app/.gitignore

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+/build

app/build.gradle

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+apply plugin: 'com.android.application'
+
+android {
+    compileSdkVersion 26
+    defaultConfig {
+        applicationId "com.mergimrama.instaapp"
+        minSdkVersion 18
+        targetSdkVersion 26
+        versionCode 1
+        versionName "1.0"
+        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+}
+
+dependencies {
+    implementation fileTree(dir: 'libs', include: ['*.jar'])
+    implementation 'com.android.support:appcompat-v7:27.0.2'
+    implementation 'com.android.support.constraint:constraint-layout:1.0.2'
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'com.android.support.test:runner:1.0.1'
+    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
+    compile 'com.squareup.okhttp3:okhttp:3.9.1'
+    implementation 'com.github.bumptech.glide:glide:4.4.0'
+    annotationProcessor 'com.github.bumptech.glide:compiler:4.4.0'
+}

app/proguard-rules.pro

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+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

app/src/androidTest/java/com/mergimrama/instaapp/ExampleInstrumentedTest.java

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+package com.mergimrama.instaapp;
+
+import android.content.Context;
+import android.support.test.InstrumentationRegistry;
+import android.support.test.runner.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.junit.Assert.*;
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+@RunWith(AndroidJUnit4.class)
+public class ExampleInstrumentedTest {
+    @Test
+    public void useAppContext() throws Exception {
+        // Context of the app under test.
+        Context appContext = InstrumentationRegistry.getTargetContext();
+
+        assertEquals("com.mergimrama.instaapp", appContext.getPackageName());
+    }
+}

app/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.mergimrama.instaapp">
+
+    <uses-permission android:name="android.permission.INTERNET"/>
+    <uses-permission android:name="android.permission.MANAGE_DOCUMENTS"/>
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/AppTheme">
+        <activity android:name=".MainActivity"
+            android:label="Newsfeed">
+            <!--<intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>-->
+        </activity>
+        <activity android:name=".UIActivity.LoginActivity"
+            android:theme="@style/AppTheme.NoActionBar">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+        <activity android:name=".UIActivity.RegisterAccountActivity"
+            android:theme="@style/AppTheme.NoActionBar"/>
+        <activity android:name=".UIActivity.PostFeedActivity"
+            android:label="Your Post" />
+    </application>
+
+</manifest>

app/src/main/java/com/mergimrama/instaapp/AddPostAsyncTask.java

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+package com.mergimrama.instaapp;
+
+import android.os.AsyncTask;
+
+import com.mergimrama.instaapp.callbacks.AddPostCallback;
+import com.mergimrama.instaapp.model.AddPostResponse;
+
+import org.json.JSONException;
+
+import java.io.IOException;
+
+/**
+ * Created by Mergim on 19-Dec-17.
+ */
+
+public class AddPostAsyncTask extends AsyncTask <String, String, String> {
+    AddPostCallback addPostCallback;
+    String imageUrl;
+    String pershkrimi;
+
+    public AddPostAsyncTask(AddPostCallback addPostCallback, String imageUrl, String pershkrimi) {
+        this.addPostCallback = addPostCallback;
+        this.imageUrl = imageUrl;
+        this.pershkrimi = pershkrimi;
+    }
+
+    @Override
+    protected void onPreExecute() {
+        super.onPreExecute();
+    }
+
+    @Override
+    protected String doInBackground(String... strings) {
+        try {
+            return ApiService.postImage(strings[0], imageUrl, pershkrimi);
+        } catch (IOException e) {
+            e.printStackTrace();
+            return null;
+        }
+    }
+
+    @Override
+    protected void onPostExecute(String s) {
+        super.onPostExecute(s);
+        try {
+            AddPostResponse addPostResponse = new AddPostResponse(s);
+            addPostCallback.onAddPostResponse(addPostResponse.getAddPost());
+        } catch (JSONException e) {
+            e.printStackTrace();
+        }
+        System.out.println(s);
+    }
+}

app/src/main/java/com/mergimrama/instaapp/ApiService.java

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+package com.mergimrama.instaapp;
+
+/**
+ * Created by Mergim on 17-Dec-17.
+ */
+
+import java.io.File;
+import java.io.IOException;
+
+import okhttp3.MediaType;
+import okhttp3.MultipartBody;
+import okhttp3.OkHttpClient;
+import okhttp3.Request;
+import okhttp3.RequestBody;
+import okhttp3.Response;
+
+public class ApiService {
+    public static OkHttpClient client = new OkHttpClient();
+
+    public static String get(String url) throws IOException {
+        Request request = new Request.Builder()
+                .url(url)
+                .build();
+
+        Response response = client.newCall(request).execute();
+        return response.body().string();
+    }
+
+    private static final MediaType MEDIA_TYPE_PNG = MediaType.parse("image/*");
+
+    public static String uploadImage(File image, String url) throws IOException {
+        RequestBody requestBody = new MultipartBody.Builder()
+                .setType(MultipartBody.FORM)
+                .addFormDataPart("image", image.getName(), RequestBody.create(MEDIA_TYPE_PNG, image))
+                .build();
+
+        Request request = new Request.Builder().url(url)
+                .post(requestBody).build();
+
+        Response response = client.newCall(request).execute();
+        return response.body().string();
+    }
+
+    public static String postImage(String BASE_URLandRoute, String imagePath, String pershkrimi) throws IOException {
+        RequestBody requestBody = new MultipartBody.Builder()
+                .setType(MultipartBody.FORM)
+                .addFormDataPart("user_id", AppPreferences.getUserId() + "")
+                .addFormDataPart("image_path", imagePath)
+                .addFormDataPart("pershkrimi", pershkrimi)
+                .build();
+
+        Request request = new Request.Builder()
+                .url(BASE_URLandRoute)
+                .post(requestBody)
+                .build();
+
+        Response response = client.newCall(request).execute();
+        return response.body().string();
+    }
+}

app/src/main/java/com/mergimrama/instaapp/AppPreferences.java

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+package com.mergimrama.instaapp;
+
+import android.content.Context;
+import android.content.SharedPreferences;
+
+/**
+ * Created by Mergim on 20-Dec-17.
+ */
+
+public class AppPreferences {
+    public static final String SHARED_PREFS = "mySharedPref";
+    public static final String USER_ID = "userId";
+    private static SharedPreferences prefs;
+
+    public static void init(Context context) {
+        prefs = context.getSharedPreferences(SHARED_PREFS, Context.MODE_PRIVATE);
+    }
+
+    public static void saveUserId (String userId) {
+        prefs.edit().putString(USER_ID, userId).commit();
+    }
+
+    public static String getUserId() {
+        return prefs.getString(USER_ID, "");
+    }
+}