Rxjava Retrofit Recyclerview Android

Retrofit Android Example With Recyclerview [Download] In this Retrofit Android tutorial, I am going to explain how to use Retrofit REST client to consume the Rest Web services. In this article we learn about Model-View-ViewModel architecture. This article is a follow-up to my recent post Demystifying the new Dagger Android Injection API. This course was created by Rene Gens & TetraTutorials Team. dependencies {. Please check out my previous post in retrofit android example with recyclerview in android. Retrofit is a client for making HTTP calls. In RxJavaCallAdapterFactory of retrofit-rxjava-adapter. learn Reactive programming using RxJava, RxAndroid and Kotlin with Dagger , Retrofit and Android Architecture components 3. The section below shows you how to setup Retrofit with RxJava. RxJava 的观察者模式. Android Custom Grid RecyclerView with Images and Text. You will have to implement the item clicke listener yourself. Android RxJava+Retrofit+RecyclerView 程序,代码可运行 Android code 2018-06-13 上传 大小: 20. RetrofitProvider. Using Kotlin, MVVM architectural pattern, Paging library for Pagination, RxJava, Retrofit and themoviedb. Retrofit ships with a default adapter for executing Call instances, but you can apply one or more additional adapters by supplying an instance of that adapter when you're building the Retrofit instance. Infinite Scrolling Android RecyclerView with RxJava - ApiService. My goal is for this RxJava on Android guide to be the intro that I needed back in 2014. 0 的使用 Android RxJava的使用(一)基本用法. This saves LayoutManager from tracking adapter changes to calculate animations. pdf), Text File (. В мире Android разработки существует множество интересных библиотек, и сегодня мы рассмотрим детище компании Square — Retrofit. I have created a project using an EmptyActivity named AndroidViewModel. Android/Java网络加载框架Retrofit(三)结合RxJava2与RxAndroid2 开开心心过 2017-10-16 16:08:38 浏览722 带实际例子的Android架构MVP简述一「 JAVA,MVP,Retrofit,RxJava」. In our previous tutorials we learned to implement a simple RecyclerView and loading image in RecyclerView using Picasso. ReactiveList. Recently, a lot articles, frameworks, and talks at the android community, are appearing talking about testing and software architecture, as said in the last Droidcon Spain, we are focusing on how to do robust applications instead on how to develop specific features. The post layout (view on GitHub) is a CardView reused for each post displayed in the RecyclerView. Create a gist now Instantly share code, notes, and snippets. The Source of data doesn’t really matter. 27, participated in the development of Zhihu Android 2. You can find the example app from which the code examples in this article are taken over here on our GitHub repo. Android Recyclerview is not new to us but Kotlin programming Language is. mvp » core Apache A detailed sample app that implements MVP architecture using Dagger2, RxJava, Retrofit and so on. Apps that reference more than 65536 methods are required to use multidex configurations. Since Android only allows UI updates on the main thread, using RxJava helps make the code more clear about what operations will be done to update the views. But what does actually means? In Reactive programming, we received the continuous flow of data streams and we provide the operation apply to stream. SearchView android bileşeninin kullanımını öğreneceğiz. Retrofit Android Example Source Code. Retrofit 2 HTTP 클라이언트 시작하기. So let me show you how can we do the POST Request using Retrofit. In this tutorial I'll try to show you just few cool and useful possibilities. Unit test, Retrofit 2, Rxjava 2 and LiveData in Android The ViewModel to be unit tested. Configure: Include the following in app-level build. To use RxJava alongside Retrofit, we need to add RxJava2CallAdapterFactory as the call adapter, using. Retrofit works very seamlessly with RxJava. It's one of the most discussed libraries for enabling Reactive Programming in Android development. May 30, 2017 by Srinivas. kali ini Rival akan membahas mengenai Implementasi Sederhana Retrofit dan RxJava. And in that project we will see how to work with Android ViewModel. Reactive Programming is event based programming. When the Avengers meet Dagger2, RxJava and Retrofit in a clean way 14 May 2015. Learn reactive programming to create awesome Android and Java apps. Now, You will see how to use android retrofit library with recyclerView in android application to make HTTP calls. RxJava: It is one… Room Persistence Library -…. Retrofit Android. Architect Android apps with MVP, Dagger. This is the third part of Dagger with Retrofit tutorial. mvp » core Apache A detailed sample app that implements MVP architecture using Dagger2, RxJava, Retrofit and so on. Define a dependency to RxJava 2. Android RecyclerView is an important component widely used in Android apps. There are a lot of good libraries out there that helps in making networking fairly easy for us. Retrofit is a type-safe REST client for Android, Java and Kotlin developed by Square. Android MVP, Dagger2, Retrofit, RxJava, RxAndroid integration example. We use cookies for various purposes including analytics. Seperti banyak yang kita ketahui, Library retrofit ini untuk menangani kasus disaat kamu request url API dan Library RxJava bertujuan untuk melakukan proses asynchronous pada sebuah program dengan kosep observables sequence. A common application feature is to load automatically more items as the user scrolls through the items. RxJava is the ability to compose asynchronous events in a more straightforward way. Home / Courses / Android / Android MySQL Retrofit Full Course – INSERT SELECT UPDATE DELETE SEARCH PAGINATION 110 students Overview Curriculum Instructor Reviews A Full App development course. It is important to know how to use it and how to customize its behavior. You've learned the basics of Retrofit call adapters in our introduction to call adapters tutorial. So in this tutorial we are going to use RecyclerView widget with the combination of TextView widget. To use RxJava in retrofit environment we need to do just two major changes: Add the RxJava in Retrofit Builder. In this part, we're going to make our network request with RxJava and simply show data in RecyclerView. Android SQLite Database Tutorial | SQLite step by step Tutorial Hello warriors what going on guys hope you all are doing well , Today I am going to share with you a topic which is Backbone of any app. Getting Started. Learn frameworks like Dagger 2, Retrofit, RxJava, Junit, Mockito and others. addCallAdapterFactory. Retrofit is a type-safe REST client for Android built by Square. If you are not aware about Retrofit, it is android http library used to handle HTTP request. What You Will Be Doing Day To Day Work closely with the design product management and backend teams…Ve este y otros empleos similares en LinkedIn. Infinite Scrolling Android RecyclerView with RxJava - ApiService. This tutorial will show you how to set up Retrofit for Android mobile development, including setting up an API interface and deserializer, with RxJava and Gson. ️ The most important thing in this mastering that we will focus on what is the market needs and explain topics such as Networking, Android Architecture and API Testing. Retrofit是Square公司专为Android和Java设计的一个类型安全的REST客户端。它帮助你轻松地与任意REST API交互,并完美兼容RxJava:所有的JSON响应对象都被映射成原始的Java对象,并且所有的网络调用都基于Rxjava Observable这些对象。. In our previous tutorials we learned to implement a simple RecyclerView and loading image in RecyclerView using Picasso. ) I made this because every time I want to add (lets say) butterknife I need to. Retrofit을 사용하면 API를 Java 인터페이스로 변환하여 RECT 웹. You've learned the basics of Retrofit call adapters in our introduction to call adapters tutorial. Retrofit Android Example Source Code. Retrofit is a REST Client for Java and Android. Tools: Retrofit, View Model, Live Data, Room, Butter Knife, Maps, Location, Picasso, JopDispatcher, RecyclerView and Widget Android app that uses API. This is an Implementation of RecyclerView using Retrofit & Glide to Create a simple Movie List with an Asp. In this tutorial, we’ll be developing an application using MVP, Dagger2, Retrofit and RxJava. Android & RXJava - how to start? I just spent a few hours reading and watching everything I could find on using RxJava with Android development (Dan Lew's series, the last two Fragmented podcasts and show links, some Microsoft info on Rx, RxJava wiki and more). I'm an Mobile Apps And Games developer. However, as we add more modules to our project, we quickly run into the issue of dependency management. The RxAndroid Library. It's actually pretty simple, i accomplish the followi. Add data to SQLite Room, fetch it and display it into RecyclerView. If you want to know more about these libraries then I recommended checking these posts. Retrofit 2 works seamlessly with RxJava 2 using the RxJava 2 adapter for Retrofit 2, add the following dependency to enable the RxJava 2 compatibility. MindOrks professional Android online course is a technical training program that teaches the programming and software skills that employers look for. In this post I will showcase how you can combine RxJava, Retrofit and Android Databindings to do a simple lookup of country from a country code. Retrofit works very seamlessly with RxJava. LayoutManager to be able to detect data set changes in batches during a layout calculation. Even Google uses it in their code samples. rxjava 2 networkonmainthreadexception (2) You should call Observable. bindActivity(lifecycle)) RxActivity, RxFragment. As such, it's a bad idea to tie the Retrofit client directly to an Activity. RxJava—Reactive Extensions for the JVM—is a library for composing asynchronous and event-based programs using Observable sequences for the Java VM, which will help you beat Android platform limitations to create astonishing Android apps. Let's see how to integrate Retrofit in Android with Kotlin. RxJava+Retrofit+MVP学习笔记 本篇笔记是对上一篇Android入门学习——Retrofit+MVP模式学习的补充。 这次加上了RxJava的简单使用,并在上一篇中特别简单的Demo的基础上加上了Swiperefreshlayout+RecyclerView的配合使用。. Oct 28, 2013 This post is the first in a series about RxJava and Android. Retrofit Rxjava Android Example. We use cookies for various purposes including analytics. Android app example with MVP pattern, dependency injection, REST web service calls, Reactive extension for android, download android studio project code. Configure: Include the following in app-level build. dan kali ini yang akan kita gunakan yaitu JSON, dimana JSON sendiri adalah format yang paling sering digunakan untuk mentransmisikan data terstruktur melalui suatu koneksi jaringan di dalam proses. RxJava 的观察者模式. RxAndroid is an extension of RxJava and it contains the Android threads to be used in the Android Environment. Android RecyclerView is an important component widely used in Android apps. Android RxJava Tutorial In this tutorial, we will learn how to implement RxJava, Room and Retrofit 2. 28元/次 学生认证会员7折. How to Handle Api Call Using Rxjava2 and Retrofit2 in android In this blog we are going handle api calls using Rxjava and Retrofit library which makes simple and cleaner way to define API. It is important to know how to use it and how to customize its behavior. The Retrofit Part (Using Retrofit 1. In most Android applications, you are reacting to user interactions (clicks, swipes and etc. The post layout (view on GitHub) is a CardView reused for each post displayed in the RecyclerView. 리스트 형태의 UI 개발시 많이 사용하는 RecyclerView를 사용하려면 RecyclerView. OK we are getting really close to finish the App! Retrofit is a really awesome library and for sure we are just using a small part of all that you can do with it, probably I'll be writing more about Retrofit in another Post as it's really a super powerful library to invoke an API. java * Created by Dustin on 2/14/15. You are reading about Android Retrofit ListView Tutorial Example Parse JSON Step By Step. To use RxJava alongside Retrofit, we need to add RxJava2CallAdapterFactory as the call adapter, using. Implement RecyclerView In Android Implement Item Click Listener on RecyclerView Android Implement Retrofit Library In Android How to load an image using Picasso How to implement pagination with RecyclerView In Android. If you are not aware about Retrofit, it is android http library used to handle HTTP request. net web api async asynchronous await blog blogging C# CV Writing deploy development dotnetcore enum front-end generics health at work http iis java Job Searching libraries productivity pwa react react libraries RecyclerView request headers retrofit self. create ( new Observable. MVVM stands for model view view-model pattern which helps to separate development of graphic user interface and remove lots of bboilerplatecodes. Highly Recommended:Google Play 4. RxJava ProGuard configuration rules for RxJava. How to Handle Api Call Using Rxjava2 and Retrofit2 in android In this blog we are going handle api calls using Rxjava and Retrofit library which makes simple and cleaner way to define API. By continuing to use this website, you agree to their use. More specifically, if you have hot Observables that emit at their own pace rather than the Subscriber's, that can cause backpressure issues especially for operators like zip() and observeOn(), or from my experience UI Subscribers that can't update the UI fast enough. activity_main. We have already seen how to set up android retrofit library to send request to rest based web services. RecyclerView in Android: The basics. 0, we will discuss Retrofit 2. It makes it relatively easy to retrieve and upload JSON (or other structured data) via a REST based webservice. My goal is for this RxJava on Android guide to be the intro that I needed back in 2014. RxJava is a library for composing asynchronous and event-based programming by using observable sequence. Android RecyclerView List Example. The original project uses Dagger for injection and is based on an MVP pattern. I have already explained more about retrofit with recyclerview. What is MVVM architecture? Model-View-ViewModel (MVVM) is a successor of MVC which uses event-driven programming to applications involving user interface. So let me show you how can we do the POST Request using Retrofit. Adapter for providing views that represent items in a data set. Gif RecyclerView in MVP using Dagger 2 + Retrofit 2 + Moshi + RxJava 2 + Glide 4 with JUnit and Espresso tests written in Kotlin + Kotlin DSL! espresso junit espresso-tests android-gif coverage riffsy mvp recyclerview dagger-2 retrofit-2 moshi rxjava-2 android-databinding kotlin-dsl kotlin kotlin-android robolectric ktlint. Retrofit itself is super easy and clean to use. Retrofit 2 works seamlessly with RxJava 2 using the RxJava 2 adapter for Retrofit 2, add the following dependency to enable the RxJava 2 compatibility. This week I tried to achieve a simple thing on Android with Retrofit2 : download a file from an API. Typically for JSON you use GSon, but you can add custom. x and RxJava 2. 我们为每一个功能添加一个具体的Contract契约类来管理Model,View,Presenter,因为数据的处理一般是在io线程,所以这个时候我们选择用RxJava讲Model进行封装,方便之后的直接用RxJava进行异步操作. However, as we add more modules to our project, we quickly run into the issue of dependency management. An article about Android Architecture Components would not be complete if it did not cover Room. And if you want to make multiple networking which is rather weird for Retrofit because most likely api's are optimized for single network call only. Retrofit is a very popular networking library by the good folks at Square, and it is widely used in the dev community. by Antonio Leiva and using the recyclerview support library v21, but Android Studio still won't resolve GridLayoutManager. setLevel(HttpLoggingInterceptor. The RecyclerView class extends the ViewGroup class and implements ScrollingView interface. You've learned the basics of Retrofit call adapters in our introduction to call adapters tutorial. RxJava is the ability to compose asynchronous events in a more straightforward way. Build apps with Model-View-Presenter pattern. RecyclerView Pagination using Rxjava. activity_main. By the use of this library, it is easy to request web services of REST with GET, POST, PUT and much more. How to use RxJava and Retrofit in an Android application to retrieve data from a REST server Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Scribd is the world's largest social reading and publishing site. Retrofit is a client for making HTTP calls. The original project uses Dagger for injection and is based on an MVP pattern. The app contains a single activity, FeedActivity (view on GitHub). I realized that it was not so obvious to show the progress of the current download. This is a repository with real-world useful examples of using RxJava with Android. This week I tried to achieve a simple thing on Android with Retrofit2 : download a file from an API. If you are still confused you can get my source code from the link given here. 前几天分别对Retrofit和RxJava进行了总结,这个帖子打算把Retrofit结合RxJava使用的方法总结以下. Retrofit is great for all of you developers out there that want to display data from services like Twitter and The Movie Database. 与REST无缝结合-RxJava和Retrofit. 摘要: 有一天,我在使用RxJava和Retrofit实现Android上面的网络请求。突然,遇到了一个坑,在过了这些坑之后得到一些经验,觉得需要和大家分享一二。. View Mohsen Mokhtari’s profile on LinkedIn, the world's largest professional community. Android:图文解析带你快速了解RxJava原理 前言 由于其基于事件流的链式调用、逻辑简洁 & 使用简单的特点,深受各大 开发者的欢迎。 如果还不了解RxJava,请看文章:Android:这是一篇 清晰 & 易懂的Rxjava 入门教程 今天,carson今天. We can handle this issue by using a RecyclerView RecyclerView is similar to ListView, but it is more smart about heap memory. Android MVP + Dagger2 + Retrofit + RxJava. They can also view the details of order like quantity, topping, special notes etc. Rxjava Retrofit Recyclerview Android Retrofit lets us receive calls results with custom handlers instead of the normal Call object by using Retrofit Call adapters. Net(C#), Web Api and Azure Blob Storage Backend. It is assumed you are already familiar with Retrofit and the concepts of Android MVP and RxJava. So here we are. ©2018 ANDROIDGRADLE. By the way, you can wrap Retrofit with it as well. 0에 처음 소개된 RecyclerView는 안드로이드 ListView의 장/단점을 보완한 고급 위젯입니다. Add Gradle For Retrofit And Gson. It also makes use of Observable responses from the generated API interface. On the JVM, callbacks will happen on the same thread that executed the HTTP request. GitHub is home to over 28 million developers working together to host and review code, manage projects, and build software together. by Antonio Leiva and using the recyclerview support library v21, but Android Studio still won’t resolve GridLayoutManager. From what I understand, backpressure issues can manifest if you bring in any kind of multithreading. Let’s see how to integrate Retrofit in Android with Kotlin. Retrofit is a sort of safe REST Android client created by Square. Although RxJava is single-threaded by default, RxJava helps enable you to define more explicitly what type of threading models should be used for both background and callback tasks. RxJava is a trending Reactive programming Java framework. Retrofit Series Overview. How to Handle Api Call Using Rxjava2 and Retrofit2 in android In this blog we are going handle api calls using Rxjava and Retrofit library which makes simple and cleaner way to define API. Again, Please check my previous post on the retrofit for the more detailed explanation. google butterknife; go to the readme; find the lines to copy. RxJava ProGuard configuration rules for RxJava. 使用RxJava+Retrofit+OkHttp+Glide+SwipeRefreshLayout+RecyclerView实现新闻客户端 详细内容 问题 同类相比 583 请先 登录 或 注册一个账号 来发表您的意见。. gradle file in app level. // adapter-rxjava2 내부적으로 rxjava를 참조하나, 버그가 수정된 최신버전의 rxjava를 명확히 정의하여 해당 library를 사용하게 하도록한다. Retrofit is one of the most popular HTTP Client Library for Android as a result of its simplicity and its great performance compare to the others. In fact, we've already discussed in our previous article about RecyclerView and CardView Implementation creating a very interesting project "SongBoard" where we've created recyclerview and cardview's implementation and had seen different implementations for Linear, Grid, Staggered Grid and Horizontal. Loading partial data on demand reduces usage of network bandwidth and system resources. If you are intending to save the REST data for offline usage, then How to use GreenDao in android studio? is a good read. activity_main. The aim of this course is to teach fundamental concepts of RxJava and RxAndroid and takes you from a novice to intermediate RxJava developer. RxJava in Android. Us] Udemy - architect-android-apps-with-mvp-pattern-rxjava-dagger-retrofit-could be available for direct download Sponsored Link google. 上图是我整理的一个 Retrofit 简易流程图。. This blog is the second in this series, so it's about network layer encapsulation. Build apps with Model-View-Presenter pattern. Make apps more robust and fun. We’re a group of talented, highly-motivated individuals with a shared passion for clean, well-tested, highly maintainable software. 0 Ok, so this isn't new or anything, but I thought let's just make a simple tutorial with the new Retrofit 2. You've learned the basics of Retrofit call adapters in our introduction to call adapters tutorial. After four different of design pattern in the last nine mouth's of android development with Universe Telecom company I was learned some of things about best practice of design pattern, In this…. addCallAdapterFactory. Android Retrofit Example. Важное на Мете Official FAQ on gender pronouns and Code of Conduct changes. RetrofitProvider. HTTP download also available at fast speeds. The Retrofit Part (Using Retrofit 1. We then specify our schedulers or perform some “thread management” for our particular needs. activity_main. Retrofit Android. RxJava is one of the most discussed libraries for enabling Reactive Programming in Android development. gradle file in app level. I have already explained more about retrofit with recyclerview. RecyclerView item click using RxJava2. io()), retrofit will unsubscribe at the end of a http-request. It is a specification of API for processing asynchronous processing of streams. x and RxJava 2. This blog is the second in this series, so it's about network layer encapsulation. Once again, it's not going to make a difference if you have simple straightforward single api calls with Retrofit. RecyclerView is like traditional ListView widget, but with more flexibility. From the JSONResponse object we obtain the AndroidVersion array object. // adapter-rxjava2 내부적으로 rxjava를 참조하나, 버그가 수정된 최신버전의 rxjava를 명확히 정의하여 해당 library를 사용하게 하도록한다. It is data exchange format. 0 Lollipop, Android introduced RecyclerView widget. Just the way RxJava on Android is described can be off putting to developers. implementation 'com. Retrofit itself is super easy and clean to use. And today i want to refactor that funcionality using Rxjava. It can be used to create event-based asynchronous programs. In this course, you'll learn Android Development with RxJava 2 / RxAndroid + Retrofit to Create Complex Android Apps 4. 它继承于 RecyclerView. We’re a group of talented, highly-motivated individuals with a shared passion for clean, well-tested, highly maintainable software. In this android programming source code example, we are going to use RxJava with Retrofit in Android. The Expandable RecyclerView is a library written to allow for an expanded view to be attached to each ViewHolder. by Ahmed Rizwan RxAndroid and Retrofit 2. Retrofit Android Example Source Code. android documentation: Retrofit2 with RxJava. The first call will happen when the first store (Realm) will retrieve the data (cached). Architect Android apps with MVP, Dagger, Retrofit & RxJava. Ihor has 5 jobs listed on their profile. ReactiveX is a combination of the best ideas from the Observer pattern, the Iterator pattern, and functional programming. Would love the chance to work together again in the future! “. Using Kotlin, MVVM architectural pattern, Paging library for Pagination, RxJava, Retrofit and themoviedb. ©2018 ANDROIDGRADLE. More specifically, if you have hot Observables that emit at their own pace rather than the Subscriber's, that can cause backpressure issues especially for operators like zip() and observeOn(), or from my experience UI Subscribers that can't update the UI fast enough. Retrofit is a type-safe REST client for Android, Java and Kotlin developed by Square. RxJava is one of the most discussed libraries for enabling Reactive Programming in Android development. by Ayusch Jain. The JSONResponse object is obtained by calling body () method on the Response object. This tutorial will cover some important aspects of Android RecyclerView giving all the information you need to build a great Android app using it. Learn frameworks like Dagger 2, Retrofit, RxJava, Junit, Mockito and others. RxJava for Android Developers begins by inviting you to think about programming and data the reactive way. Retrofit adalah sebuah library REST Client yang mudah digunakan, Retrofit ini sendiri memanfaatkan REST Server yang menyadiakan resources yang direpresentasikan ke dalam bentuk Text, JSON maupun XML. By the way, you can wrap Retrofit with it as well. Furthermore, the Android design guidelines often suggest using cards. Apps that reference more than 65536 methods are required to use multidex configurations. All gists Back to GitHub. More specifically, if you have hot Observables that emit at their own pace rather than the Subscriber's, that can cause backpressure issues especially for operators like zip() and observeOn(), or from my experience UI Subscribers that can't update the UI fast enough. Better Exponential Backoffs with RxJava and Retrofit on Android. To use RxJava in retrofit environment we need to do just two major changes: Add the RxJava in Retrofit Builder. If you've kept yourself up to date with the latest in Retrofit you've soon came to the question "Should I or shouldn't I update to Retrofit 2?". - Consumed rest api using Retrofit, OkHttpClient, Gson, etc. In this tutorial, we will learn MVP best design pattern in Kotlin by using awesome library Retrofit, Dagger2 dependency injection, Anko - SQLite database wrapper and Reactive RxJava and RxAndroid. *, bringing in all the ids into the namespace. It has optimized technical & career curriculum for Android development that will accelerate your career. Add data to SQLite Room, fetch it and display it into RecyclerView. Scrolling RecyclerView - Part 1 February 20, 2015 February 8, 2015 Mark Allison 8 Comments In this series of articles we'll take a look in to scrolling behaviour of RecyclerView , and discover some oddities that may crop up, and some options for fixing them. Android app example with MVP pattern, dependency injection, REST web service calls, Reactive extension for android, download android studio project code. Thông qua bài viết trên các bạn có thể thấy sự khác nhau cơ bản giữa RxJava 2 và RxJava là sự khác nhau ở cách. They can also view reports on weekly, monthly, six months and custom selection basis. The Paging Library helps you load and display small chunks of data at a time. They can change language both Arabic and English. gradle file. If you'd like to integrate RxJava as well, you can check here. View Mohsen Mokhtari’s profile on LinkedIn, the world's largest professional community. If you've kept yourself up to date with the latest in Retrofit you've soon came to the question "Should I or shouldn't I update to Retrofit 2?". GitHub is home to over 28 million developers working together to host and review code, manage projects, and build software together. It is a specification of API for processing asynchronous processing of streams. This is just one more example about how in Kotlin we can continue to use the same libraries we've always used in Java for Android. net core web api asp. My goal is for this RxJava on Android guide to be the intro that I needed back in 2014. 前几天分别对Retrofit和RxJava进行了总结,这个帖子打算把Retrofit结合RxJava使用的方法总结以下. In this tutorial, we are using RxJava for performing Retrofit network operations. RecyclerView is flexible and efficient version of ListView. x and RxJava 2. android documentation: Retrofit2 with RxJava. This is the third part of Dagger with Retrofit tutorial. Retrofit Model to make it work with RxJava. Android RecyclerView is an important component widely used in Android apps. Observable pageDetector = Observable. Free Download Udemy Architect Android apps with MVP, Dagger, Retrofit & RxJava. This week I tried to achieve a simple thing on Android with Retrofit2 : download a file from an API. - Created custom views, styles, transitions, and animations. 【知识必备】RxJava+Retrofit二次封装最佳结合体验,打造懒人封装框架~ 一. Решил я однажды таки попробовать дико популярный нынче Rx. Rx stands for reactive extension. Loading partial data on demand reduces usage of network bandwidth and system resources. RecyclerView introduces an additional level of abstraction between the RecyclerView. Retrofit Android Example With Recyclerview [Download] In this Retrofit Android tutorial, I am going to explain how to use Retrofit REST client to consume the Rest Web services. pdf), Text File (. Reactive Extensions is a library to compose asynchronous and event-based programs using observable collections and LINQ-style query operators , quoted from the corresponding MSDN site. create ( new Observable. You can find the example app from which the code examples in this article are taken over here on our GitHub repo. 2017-01-17 android 用rxjava和retrofit时怎么解决返 2017-11-05 rxjava+retrofit 请求网络为什么抛出数组越界异 2017-06-28 android 用rxjava和retrofit时怎么解决返 2017-05-17 android中使用retrofit+rxjava时怎么看获 2017-08-07 如何用RxJava2. A common application feature is to load automatically more items as the user scrolls through the items. In this android programming source code example, we are going to use RxJava with Retrofit in Android. RxJava ProGuard configuration rules for RxJava. Adapter 클래스를 상속받은 Adapter 클래스와 리스트의 항목을 표현할 때 사용되는 RecyclerView. Since Android only allows UI updates on the main thread, using RxJava helps make the code more clear about what operations will be done to update the views. The fact-checkers, whose work is more and more important for those who prefer facts over lies, police the line between fact and falsehood on a day-to-day basis, and do a great job. Today, my small contribution is to pass along a very good overview that reflects on one of Trump’s favorite overarching falsehoods. Namely: Trump describes an America in which everything was going down the tubes under  Obama, which is why we needed Trump to make America great again. And he claims that this project has come to fruition, with America setting records for prosperity under his leadership and guidance. “Obama bad; Trump good” is pretty much his analysis in all areas and measurement of U.S. activity, especially economically. Even if this were true, it would reflect poorly on Trump’s character, but it has the added problem of being false, a big lie made up of many small ones. Personally, I don’t assume that all economic measurements directly reflect the leadership of whoever occupies the Oval Office, nor am I smart enough to figure out what causes what in the economy. But the idea that presidents get the credit or the blame for the economy during their tenure is a political fact of life. Trump, in his adorable, immodest mendacity, not only claims credit for everything good that happens in the economy, but tells people, literally and specifically, that they have to vote for him even if they hate him, because without his guidance, their 401(k) accounts “will go down the tubes.” That would be offensive even if it were true, but it is utterly false. The stock market has been on a 10-year run of steady gains that began in 2009, the year Barack Obama was inaugurated. But why would anyone care about that? It’s only an unarguable, stubborn fact. Still, speaking of facts, there are so many measurements and indicators of how the economy is doing, that those not committed to an honest investigation can find evidence for whatever they want to believe. Trump and his most committed followers want to believe that everything was terrible under Barack Obama and great under Trump. That’s baloney. Anyone who believes that believes something false. And a series of charts and graphs published Monday in the Washington Post and explained by Economics Correspondent Heather Long provides the data that tells the tale. The details are complicated. Click through to the link above and you’ll learn much. But the overview is pretty simply this: The U.S. economy had a major meltdown in the last year of the George W. Bush presidency. Again, I’m not smart enough to know how much of this was Bush’s “fault.” But he had been in office for six years when the trouble started. So, if it’s ever reasonable to hold a president accountable for the performance of the economy, the timeline is bad for Bush. GDP growth went negative. Job growth fell sharply and then went negative. Median household income shrank. The Dow Jones Industrial Average dropped by more than 5,000 points! U.S. manufacturing output plunged, as did average home values, as did average hourly wages, as did measures of consumer confidence and most other indicators of economic health. (Backup for that is contained in the Post piece I linked to above.) Barack Obama inherited that mess of falling numbers, which continued during his first year in office, 2009, as he put in place policies designed to turn it around. By 2010, Obama’s second year, pretty much all of the negative numbers had turned positive. By the time Obama was up for reelection in 2012, all of them were headed in the right direction, which is certainly among the reasons voters gave him a second term by a solid (not landslide) margin. Basically, all of those good numbers continued throughout the second Obama term. The U.S. GDP, probably the single best measure of how the economy is doing, grew by 2.9 percent in 2015, which was Obama’s seventh year in office and was the best GDP growth number since before the crash of the late Bush years. GDP growth slowed to 1.6 percent in 2016, which may have been among the indicators that supported Trump’s campaign-year argument that everything was going to hell and only he could fix it. During the first year of Trump, GDP growth grew to 2.4 percent, which is decent but not great and anyway, a reasonable person would acknowledge that — to the degree that economic performance is to the credit or blame of the president — the performance in the first year of a new president is a mixture of the old and new policies. In Trump’s second year, 2018, the GDP grew 2.9 percent, equaling Obama’s best year, and so far in 2019, the growth rate has fallen to 2.1 percent, a mediocre number and a decline for which Trump presumably accepts no responsibility and blames either Nancy Pelosi, Ilhan Omar or, if he can swing it, Barack Obama. I suppose it’s natural for a president to want to take credit for everything good that happens on his (or someday her) watch, but not the blame for anything bad. Trump is more blatant about this than most. If we judge by his bad but remarkably steady approval ratings (today, according to the average maintained by 538.com, it’s 41.9 approval/ 53.7 disapproval) the pretty-good economy is not winning him new supporters, nor is his constant exaggeration of his accomplishments costing him many old ones). I already offered it above, but the full Washington Post workup of these numbers, and commentary/explanation by economics correspondent Heather Long, are here. On a related matter, if you care about what used to be called fiscal conservatism, which is the belief that federal debt and deficit matter, here’s a New York Times analysis, based on Congressional Budget Office data, suggesting that the annual budget deficit (that’s the amount the government borrows every year reflecting that amount by which federal spending exceeds revenues) which fell steadily during the Obama years, from a peak of $1.4 trillion at the beginning of the Obama administration, to $585 billion in 2016 (Obama’s last year in office), will be back up to $960 billion this fiscal year, and back over $1 trillion in 2020. (Here’s the New York Times piece detailing those numbers.) Trump is currently floating various tax cuts for the rich and the poor that will presumably worsen those projections, if passed. As the Times piece reported: