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Spotify App React Native

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Set-up: Using npm. Use npm install react-native-spotify from the directory of your project in your command line. Download the Spotify IOS SDK beta 25 here and unzip it, you will find 3 files with the.framework extension. Open your react native project in Xcode and drag the 3 unzipped.framework files (SpotifyAudioPlayback, SpotifyAuthentication, SpotifyMetadata) into the.

Every week, we send out useful front-end & UX techniques. Subscribe and get the Smart Interface Design Checklists PDF delivered to your inbox. Spotify hacked apk download ios.

In this article, based on my experience with creating a GPS and navigation application, I will show you how to create a mobile app using Expo and Firebase services such as Firestore, Firebase functions and Expo push notifications.

Maybe you’ve heard of or worked with React, the JavaScript framework developed by Facebook. The social media company took it even further by releasing React Native, which quickly became the most popular framework for building mobile apps with JavaScript. Many companies embraced the idea and started building their apps with it.

In this article, we’ll get an idea of how to develop an application for Android and iOS using Expo and Firebase, based on my own experience of creating an application with these technologies. If you haven’t worked with Firebase before, please look at its guide to JavaScript projects before we dive in.

https://parkingnin.netlify.app/download-spotify-playlist-mac.html. Music quality is lossy;3. So many ads.How to use it:1.Go to its official site on the browser;2.Paste the link of Spotify song you want to convert;3.Click the Convert button and then press the Download button after the link is validated. Instead of downloading, it uses recording technology to record the Spotify songs. It is able to assist Spotify users easily record any music track and playlist with high quality for free. TunesKit Audio Capture (Windows & Mac)is an all-in-one audio recording software developed by TunesKit Studio.

If you are new to JavaScript, make sure you’re clear on the basics of ECMAScript 6’s features, such as class importing and arrow functions. You can learn React Native from the official documentation, which has a section on React fundamentals, in case you haven’t worked with React. Don’t worry about how to build an app with Android Studio or Xcode, because we will be using the Expo framework.

Recommended reading on SmashingMag:

Brief Description of Project

We can describe our project as an on-demand transporter — you could say Uber for merchandise transportation. The user will choose transportation information, such as the type of vehicle and loading and unloading locations, and then nearby transportation vehicles will appear on the map. The user confirms their request, and the drivers receive notifications one by one. Each driver’s notification is active for 25 seconds. If they ignore or decline the request, the system selects another driver, and so on. When a driver accepts the request, the user can monitor the entire transportation process on the map, including via the web application.

Expo Installation And Configuration

First, we need to install the command line interface (CLI) for Expo, which will help us test to the app in a simulator or on real devices and to build our app in the cloud.

Let’s create our Expo project.

The cool part is that all of your app’s configurations can be done in a single JSON file, app.json. Below are some tips I learned that could increase your chances of being accepted in the App Store and Google Play and to help you avoid some common problems.

  • If you are using Google Maps in your app, be sure to provide the API in the app.json configuration file, in order to make it work properly. Google won’t charge you for native map rendering unless you’re rendering directions or using other paid API services.
  • To make location updates, or any other background tasks, work in the background in iOS, add the following keys under ios.infoPlist:
  • If you don’t define which permissions your app will use, then Expo’s generated app will use all available authorizations by default. As a result, Google Play will reject your app. So, specify your required permissions.
  • Apple requires you to provide a message that tells the user why the app is requesting this access, or else you will be rejected.
  • Make sure to increment the android.versionCode key before you publish a new version to Google Play.
  • All updates can be done with Expo over the air, without passing by Google Play or the App Store, unless you make the following changes:
    • upgrade the Expo SDK version;
    • change anything under the ios, android, or notification keys;
    • change the app’s splash;
    • change the app’s icon;
    • change the app’s name;
    • change the app’s owner;
    • change the app’s scheme;
    • change the facebookScheme;
    • change your bundled assets under assetBundlePatterns.
  • I prefer not to interpret the user experience by setting fallbackToCacheTimeout to 0 under the updates key. This will allow your app to start immediately with a cached bundle, while downloading a newer one in the background for future use.

And here is a complete example of the configuration in app.json:

Let’s move on to installing Firebase, using the following command:

I prefer to create a firebase.js file in the app’s root folder that contains all Firebase configurations. In this case, I’m using only the Firestore and Storage services.

Now, whenever we want to use Firebase, we just import this file, as follows:

The documentation has a more detailed explanation of using Firebase with Expo.

The Application’s Database

You can store your data directly in the cloud using Firebase, which offers two types of databases. One is the real-time database, and the other is Firestore, which is considered to be the improved version of the real-time database, with more advanced functionality. Both are NoSQL databases with data sync and instant changes listeners. They have different mechanisms: The real-time database stores data as a JSON object, whereas Firestore stores data as documents in collections. They also calculate usage and cost differently: The former is based on the quantity of data exchanged, and the latter is based on the number of operations in the documents (reads, writes, and deletes).

In my case, I used the Firestore database to store users, requests, vehicles, and other application data. (I was trying to be smart by putting all of my data in one document to decrease operation usage, but then I discovered that each document can store only 1 MB.)

In addition to storing strings, numbers, objects, and so on in Firebase, you can also store a geoPoint, which is an object that contains the coordinates of geographic points (latitude and longitude). Despite this, unfortunately, you cannot make geographic queries, such as retrieving nearby users.

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To do that, we can use GeoFirestore. But we have to take into account that this package restricts the document structure of the user to this:

So, if you’re going to implement it directly in your user collection, like I did, then you’ll need to put all of the user’s data in the d key.

Last but not least, don’t forget to optimize your code to avoid unexpected operations:

  • Use offline persistence. On the web, offline persistence is disabled; be sure to enable it.
  • Use cursor pagination in Firestore queries. Don’t get all data at once.
  • Always unsubscribe listeners, when done, or unmounted components.

The Application’s Back End

You can manage the Firestore database, send notifications with Expo, and perform certain operations directly from the front end or the mobile application, but there are other operations that we cannot do without a back end and a server. This is why Firebase offers functions — a cloud back end that allows you to execute Node.js code on a scalable server. I’ve used the Firebase functions for the following:

Open App Store on your iPad and search for Microsoft Remote Desktop. Mac ipad price. Again, this app is completely free. Open RD Client on your home screen (RD Client stands for Remote Desktop Client).

  • Send notifications (see example below)
    To send notifications, we will use push notifications, a tool that helps an app’s owner send messages to their users. It appear in the notifications section of the device, even if the application is not active. We don’t want this process to be stopped by a sudden interruption in connectivity, so we’ll have to use a server.
  • Run cron jobs
    Using cron jobs helps me to manage scheduled requests and notifications.
  • Sanitize the database
    This includes removing useless and ignored requests.
  • Run sensitive, expensive, or continuous tasks
    This includes registering, retrieving users, and scheduling orders. All of these are sensitive operations. If you make them directly from your app or front end, there is a risk of security vulnerability and broken tasks.

Joaquin Cid’s article “How to Build a Role-based API With Firebase Authentication” will give you details on how to get started with Firebase functions and how to create a back-end API using Express. It uses TypeScript, but converting TypeScript to JavaScript is not hard.

Push Notifications

Expo sends a notification to the user’s device from its servers. It identifies the user’s device with a token. When someone uses the application, the app would execute code to obtain the device’s token, and then store this token on the server. I’ve used Firestore as usual to store the token and compare incoming tokens to check whether the user has logged in from another device.

Native

We get our token using the following function:

Don’t forget to request permission to push notifications. The documentation has example usage.

Whenever you want to send a notification to this user, you would make a request to Expo’s server, which contains the user’s device token already stored on your server.

The following is a simple example that sends notifications to all users using Firebase functions. This example is not secure. If you want to implement authorization and authentication, please follow Cid’s article mentioned above.

After initializing our project using the Firebase CLI, let’s install the Express framework to handle our API.

We need to support CORS and add JSON body-parser middleware. This way, we can make requests from any URL and parse JSON-formatted requests.

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This is the main index.js file of our functions directory:

And this is the pushNotifications.js controller, located in the controllers folder.

In the controller above, we got all of the app’s users from Firestore. Each user has a push token. We divided this list into sets of 100 users, because a single request to Expo can hold only 100 notifications. Then, we sent these notifications using Axios.

The following is the chunkArray function:

This is an example of how to send notifications via our API using Axios.

Maps and Geolocation

Render Native Google Maps in React Native

To render Google Maps in the mobile application, I used react-native-maps, and to render directions, I used the react-native-maps-directions package. For a web application, I would use pure JavaScript.

Then, import these packages:

We’ll render the map with markers and directions:

Watch User’s Location in Foreground and Background

The Expo framework supports background location updates, I want to use this feature to get the user’s position. Even if the app is not in the foreground or the phone is locked, the application should always send the location to the server.

If you’ll notice, I’ve used different structures when updating the location to Firestore. That’s because I’m using the GeoFirestore package to query nearby users.

Using WebView in React Native

The application is not only for mobile users, but also for desktop users. So, let’s not spend time developing another application that shares much of the same functionality, such as login and registration, profiles and settings, and orders history.

On the app website, we check whether the user came from a desktop browser or the mobile application. We then redirect them to the corresponding application.

For a mobile application, we have to implement some sort of communication between the native app and WebView app, thanks to the JavaScript injection of postMessage and onMessage in WebView. But be careful when and how you use it:

Security Warning: Currently, onMessage and postMessage do not allow specifying an origin. This can lead to cross-site scripting attacks if an unexpected document is loaded within a WebView instance. Please refer to the MDN documentation for Window.postMessage() for more details on the security implications of this.
— React Native documentation

We’ll send data from web JavaScript to React Native. Here is an example of sending a user ID:

We’ll listen to data coming from the web in WebView.

Let’s send data from React Native to the web. The following example sends a location retrieved from React Native.

We’ll read the location on the web:

The Web Application and Website

All web-related parts, from the website to the web application, were made with Next.js and hosted on Netlify for three main raisons:

  • cost-effectiveness
    There is no server to maintain, and Netlify’s free plan is more than enough for my needs. Unlimited private repositories are now free on GitHub, so nothing to worry about there.
  • effortless development
    Commit, push, and let Netlify do the rest. Is anything simpler than that?
  • speed
    The websites are static and all hosted on a content delivery network (CDN). When a user requests these websites, the CDN directs them to the nearest copy in order to minimize latency. So, the websites are extremely fast.

Limitations of Expo

Spotify App React Native American

There are two approaches to building an app with Expo: the managed workflow, where you write only JavaScript, and Expo tools and services do the rest for you, and the bare workflow, where you have full control over all aspects of the native project, and where Expo tools can’t help as much. If you plan to follow the first approach, then consider Expo’s limitations, because some functionality that exists in major apps, such as Spotify (for example, music playing in the background) and Messenger (call notifications), cannot be done yet.

Conclusion

Expo is an excellent choice if you are not familiar with native development and you want to avoid all of the headaches associated with creating and regularly deploying an application. Firebase can save you a lot of time and work, because of its scalability and variety of services. However, both are third-party services, over which you have no control, and Firestore is not designed for complex queries and data relationships.

Spotify App React Native People

Thanks for your attention. I hope you’ve enjoyed this article and learned something new.

Spotify App React Native Americans

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