JosiasSena

/**
  _____        _____                  _             
 |  __ \      / ____|                | |            
 | |  | | ___| |     _ __ _   _ _ __ | |_ ___  _ __ 
 | |  | |/ _ \ |    | '__| | | | '_ \| __/ _ \| '__|
 | |__| |  __/ |____| |  | |_| | |_) | || (_) | |   
 |_____/ \___|\_____|_|   \__, | .__/ \__\___/|_|   
                           __/ | |                  
                          |___/|_|                  
 */

JosiasSena

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.net.wifi.WifiConfiguration;
import android.net.wifi.WifiManager;
import android.support.annotation.NonNull;
import android.util.Log;

import static android.content.ContentValues.TAG;

JosiasSena

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.josiassena.jobscheduler">

    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"

JosiasSena

private void getCameraIds() {
    cameraManager = (CameraManager) appContext.getSystemService(Context.CAMERA_SERVICE);
    CameraCharacteristics cameraCharacteristics;
    try {
        for (String cameraId : cameraManager.getCameraIdList()) {
            cameraCharacteristics = cameraManager.getCameraCharacteristics(cameraId);
            if (isCameraFacingBack(cameraCharacteristics) && backCameraId == null) {
                backCameraId = cameraId;
            } else if (isCameraFacingFront(cameraCharacteristics) && frontCameraId == null) {
                frontCameraId = cameraId;

JosiasSena

private void getCameraIds() {
    cameraManager = (CameraManager) appContext.getSystemService (Context.CAMERA_SERVICE);
    CameraCharacteristics cameraCharacteristics;
    try {
        for (String cameraId : cameraManager.getCameraIdList()) {
            cameraCharacteristics = cameraManager.getCameraCharacteristics(cameraId);
            if (isCameraFacingBack(cameraCharacteristics)) {
                backCameraId = cameraId;
            } else if (isCameraFacingFront(cameraCharacteristics)) {
                frontCameraId = cameraId;

JosiasSena

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.packagename">

    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.READ_SYNC_SETTINGS" />
    <uses-permission android:name="android.permission.WRITE_SYNC_SETTINGS" />
    <uses-permission android:name="android.permission.AUTHENTICATE_ACCOUNTS" />

    <application

JosiasSena

class GraphQLApi(private val sharedOkHttpClientBuilder: OkHttpClient.Builder) {

    // ...

    fun <D : Operation.Data, V : Operation.Variables> subscribe(subscription: Subscription<D, D, V>): Flowable<Response<D>> {

        // Create our dedicated apollo client
        val apolloClient = ApolloSubscriptionClientFactory(sharedOkHttpClientBuilder)
            .createSubscriptionApolloClient()

JosiasSena

subscription onNewMessagesReceived($groupUUID: String!) {
    groupChatSubscription(group: $groupUUID) {
        ... on Message {
                uuid
        }
    }
}

JosiasSena

class ApolloSubscriptionClientFactory {
    
  fun createSubscriptionApolloClient(sharedOkHttpClientBuilder: OkHttpClient.Builder): ApolloClient {
      val okHttpClient = sharedOkHttpClientBuilder
            .pingInterval(KEEP_ALIVE_INTERVAL, TimeUnit.SECONDS)
            .build()
    
      val subscriptionTransportFactory = WebSocketSubscriptionTransport.Factory("wss://your_subscription_host/graphql", okHttpClient)
    
      return ApolloClient.builder()

JosiasSena

class SomePresenterOrViewModelEtc(private val api: GraphQLApi) {

    // ...

    fun sunscribeToMessages() {
        val messagesSubscription = OnNewMessagesReceivedSubscription.builder()
            .groupUUID("uuid")
            .build()

        api.subscribe(messagesSubscription)