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Nenad Lukic
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‎.gitignore

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*.iml
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.gradle
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/local.properties
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/.idea/
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.DS_Store
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/build
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/captures
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.externalNativeBuild

‎app/.gitignore

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/build

‎app/build.gradle

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apply plugin: 'com.android.application'
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android {
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compileSdkVersion 25
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defaultConfig {
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applicationId "com.example.nlukic.webviewtest"
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minSdkVersion 15
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targetSdkVersion 25
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versionCode 1
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versionName "1.0"
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testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
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}
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buildTypes {
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release {
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minifyEnabled false
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proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
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}
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}
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}
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dependencies {
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implementation fileTree(dir: 'libs', include: ['*.jar'])
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implementation 'com.android.support:appcompat-v7:25.4.0'
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implementation 'com.android.support.constraint:constraint-layout:1.0.2'
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implementation 'com.android.support:design:25.4.0'
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testImplementation 'junit:junit:4.12'
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androidTestImplementation 'com.android.support.test:runner:1.0.1'
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androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
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compile 'com.android.volley:volley:1.1.0'
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}

‎app/proguard-rules.pro

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

‎app/src/androidTest/java/com/example/nlukic/webviewtest/ExampleInstrumentedTest.java

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

‎app/src/main/AndroidManifest.xml

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<?xml version="1.0" encoding="utf-8"?>
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<manifest xmlns:android="http://schemas.android.com/apk/res/android"
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package="com.example.nlukic.webviewtest">
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<uses-permission android:name="android.permission.INTERNET" />
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<application
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android:allowBackup="true"
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android:icon="@mipmap/ic_launcher"
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android:label="@string/app_name"
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android:roundIcon="@mipmap/ic_launcher_round"
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android:supportsRtl="true"
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android:theme="@style/AppTheme">
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<activity
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android:name=".MainActivity"
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android:label="@string/app_name"
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android:theme="@style/AppTheme.NoActionBar">
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<intent-filter>
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<action android:name="android.intent.action.MAIN" />
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<category android:name="android.intent.category.LAUNCHER" />
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</intent-filter>
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</activity>
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</application>
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</manifest>

‎app/src/main/java/com/example/nlukic/webviewtest/MainActivity.java

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package com.example.nlukic.webviewtest;
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import android.support.v4.app.Fragment;
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import android.os.Bundle;
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import android.support.design.widget.FloatingActionButton;
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import android.support.v4.app.FragmentTransaction;
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import android.support.v7.app.AppCompatActivity;
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import android.support.v7.widget.Toolbar;
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import android.util.Log;
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import android.view.View;
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import android.view.Menu;
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import android.view.MenuItem;
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import com.android.volley.NetworkResponse;
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import com.android.volley.VolleyError;
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import com.example.nlukic.webviewtest.utils.Requester;
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import com.example.nlukic.webviewtest.utils.UserRequestListener;
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import org.json.JSONException;
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import org.json.JSONObject;
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public class MainActivity extends AppCompatActivity implements UserRequestListener {
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private String userId;
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.activity_main);
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Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
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setSupportActionBar(toolbar);
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FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
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fab.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View view) {
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// Create new fragment and transaction
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Fragment newFragment = new ViewerFragment(MainActivity.this.userId);
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FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
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// Replace whatever is in the fragment_container view with this fragment,
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// and add the transaction to the back stack
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transaction.replace(R.id.fragment_container, newFragment);
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transaction.addToBackStack(null);
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// Commit the transaction
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transaction.commit();
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}
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});
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try {
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(new Requester(this)).getUser();
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} catch (JSONException ex) {
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Log.v("Requester.Exception", ex.getMessage());
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}
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// Create new fragment and transaction
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MainFragment newFragment = new MainFragment("Click on the fab button to link your account.");
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FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
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// Replace whatever is in the fragment_container view with this fragment,
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// and add the transaction to the back stack
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transaction.add(R.id.fragment_container, newFragment);
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transaction.addToBackStack(null);
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// Commit the transaction
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transaction.commit();
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}
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@Override
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public void onUserActionSuccess(JSONObject resp) {
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try {
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JSONObject result = resp.getJSONObject("result");
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Log.v("onUserActionSuccess", "User ID: " + result.getString("id"));
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this.userId = result.getString("id");
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} catch (JSONException ex) {
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Log.v("onUserActionSuccess", ex.toString());
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}
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Log.v("onUserActionSuccess", "Response is: " + resp.toString());
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}
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@Override
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public void onUserActionFailure(VolleyError error) {
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NetworkResponse networkResponse = error.networkResponse;
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if (networkResponse != null && networkResponse.data != null) {
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String jsonError = new String(networkResponse.data);
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Log.v("Response.OnError", "Response is: " + jsonError);
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}
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Log.v("Response.OnError", error.toString());
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}
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@Override
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public boolean onCreateOptionsMenu(Menu menu) {
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// Inflate the menu; this adds items to the action bar if it is present.
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getMenuInflater().inflate(R.menu.menu_main, menu);
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return true;
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}
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@Override
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public boolean onOptionsItemSelected(MenuItem item) {
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// Handle action bar item clicks here. The action bar will
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// automatically handle clicks on the Home/Up button, so long
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// as you specify a parent activity in AndroidManifest.xml.
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int id = item.getItemId();
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//noinspection SimplifiableIfStatement
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if (id == R.id.action_settings) {
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return true;
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}
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return super.onOptionsItemSelected(item);
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}
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}

‎app/src/main/java/com/example/nlukic/webviewtest/MainFragment.java

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package com.example.nlukic.webviewtest;
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import android.support.v4.app.Fragment;
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import android.os.Bundle;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import android.widget.TextView;
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public class MainFragment extends Fragment {
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private String textContent;
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public MainFragment() {
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}
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public MainFragment(String text) {
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this.textContent = text;
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}
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@Override
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public View onCreateView(LayoutInflater inflater, ViewGroup container,
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Bundle savedInstanceState) {
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// Inflate the layout for this fragment
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View view = inflater.inflate(R.layout.content_main, container, false);
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TextView textView = (TextView) view.findViewById(R.id.textina);
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textView.setText(this.textContent);
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return view;
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}
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}

‎app/src/main/java/com/example/nlukic/webviewtest/ViewerFragment.java

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package com.example.nlukic.webviewtest;
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import android.support.v4.app.Fragment;
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import android.os.Bundle;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import android.webkit.WebSettings;
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import android.webkit.WebView;
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import android.webkit.WebViewClient;
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public class ViewerFragment extends Fragment {
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private String userId;
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public ViewerFragment() {
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}
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public ViewerFragment(String userId) {
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this.userId = userId;
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}
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@Override
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public View onCreateView(LayoutInflater inflater, ViewGroup container,
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Bundle savedInstanceState) {
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// Inflate the layout for this fragment
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View view = inflater.inflate(R.layout.webview_layout, container, false);
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WebView myWebView = (WebView) view.findViewById(R.id.webview);
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myWebView.loadUrl("http://192.168.2.97?user_id="+this.userId);
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//myWebView.loadUrl("http://www.google.com");
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WebSettings webSettings = myWebView.getSettings();
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webSettings.setJavaScriptEnabled(true);
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webSettings.setDomStorageEnabled(true);
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myWebView.setWebViewClient(new WebViewClient());
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myWebView.addJavascriptInterface(new WebAppInterface(getActivity()), "Android");
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return view;
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}
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}

‎app/src/main/java/com/example/nlukic/webviewtest/WebAppInterface.java

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package com.example.nlukic.webviewtest;
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import android.app.Activity;
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import android.content.Context;
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import android.support.v4.app.FragmentTransaction;
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import android.support.v7.app.AppCompatActivity;
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import android.webkit.JavascriptInterface;
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import android.widget.TextView;
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public class WebAppInterface {
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Context mContext;
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/**
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* Instantiate the interface and set the context
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*/
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WebAppInterface(Context c) {
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mContext = c;
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}
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@JavascriptInterface
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public void setConnectionId(String token) {
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transitionToFragment(token);
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}
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@JavascriptInterface
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public void cancelActions() {
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transitionToFragment("Click on the fab button to link your account.");
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}
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private void transitionToFragment(String text) {
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AppCompatActivity activity = ((AppCompatActivity) mContext);
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MainFragment newFragment = new MainFragment(text);
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FragmentTransaction transaction = activity.getSupportFragmentManager().beginTransaction();
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// Replace whatever is in the fragment_container view with this fragment,
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// and add the transaction to the back stack
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transaction.replace(R.id.fragment_container, newFragment);
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transaction.addToBackStack(null);
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// Commit the transaction
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transaction.commit();
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}
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}

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