Recycler ELE


Source link: http://www.github.com/the-cybersapien/recyclerELE

Recycler ELE


Related Blog Post: Cybersapien's blog

We often use the RecyclerView and the RecyclerView.Adapter for our material design apps. Going from the ListView to RecyclerView, I really missed the setEmptyView() method.

So, I extended the original RecyclerView Adapter to help manage different states in the application. The Adapter, apart from the standard list, supports three different views:

  • Loading View (While Data is being fetched)
  • Empty View (When there is not data)
  • Error View (In case of an error while fetching data)

This way, RecyclerELE helps us give different output to user depending on the current state of data, without having to mess a lot with the code.

Installation


The installation is pretty easy.

JCenter

For Gradle

In your app module's build.gradle add dependency:


 compile 'com.github.the-cybersapien:recyclerELE:(latest release)' 
For Maven:

Add Snippet:

<dependency>
<groupId>com.github.the-cybersapien</groupId>
<artifactId>recyclerELE</artifactId>
<version>v1.1</version>
<type>pom</type> </dependency> 

Jitpack Gradle

In your project's build.gradle at the end of the repositories, add:

allprojects {

  repositories {

...

maven {
 url 'https://jitpack.io' 
}

  
}
 
}
 

In your app module's build.gradle add dependency:


 compile 'com.github.the-cybersapien:recyclerELE:(latest release)' 

Usage


In your Activity, create a regular RecyclerView.Adapter for your List Item


 RecyclerAdapter listAdapter = new RecyclerAdapter(Object... args);
 

Get the reference to your RecyclerView


 RecyclerView recyclerView = (RecyclerView) findViewById(R.id.recycler_view);
 

Inflate your empty view, loading view and error view with the recyclerView as their parent programmatically.


 View loadingView = getLayoutInflator().inflate(R.layout.view_loading, recyclerView, false);

  View emptyView = getLayoutInflator().inflate(R.layout.view_empty, recyclerView, false);

  View errorView = getLayoutInflator().inflate(R.layout.view_error, recyclerView, false);
 

Initialize the RecyclerELEAdapter with the RecyclerAdapter and the different Views


 RecyclerELEAdapter recyclerELEAdapter = new RecyclerELE(listAdapter, emptyView, loadingView, errorView);
 

Set the RecyclerELEAdapter to your recyclerView


 recyclerView.setAdapter(recyclerELEAdapter);
 

Change the current View type of the adapter with setCurrentView() function


 // Normal List View
  recyclerELEAdapter.setCurrentView(RecyclerELEAdapter.VIEW_NORMAL);

 // Empty View
  recyclerELEAdapter.setCurrentView(RecyclerELEAdapter.VIEW_EMPTY);

 // Loading View
  recyclerELEAdapter.setCurrentView(RecyclerELEAdapter.VIEW_LOADING);

 // Error View
  recyclerELEAdapter.setCurrentView(RecyclerELEAdapter.VIEW_ERROR);
 

For more details, see the Sample Application in recyclerELE sample module.

License


Copyright [2017] [Aditya Aggarwal]  Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0  Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.  

Resources

Kripton is a java library, for Android and Java platform, that provides a simple and uniform way to manage persistence of Java classes in different flavours through annotations and interface. Supported persistence methods are:

  • SQLite database
  • Shared preference
  • REST service, throws Retrofit library integration
  • on file system in JSON/XML/CBOR/(Java)YAML/smile data format

To get max performance and avoid boilerplate-code, Kripton use annotation processor. With the power of annotation processor is possible to create code to persist a java class, simply with an annotation. There are many other libraries that do this, but Kripton allows to persists java object in different ways with an unique set of annotation and mechanisms.

The easiest way to use a RecyclerView on Android.

Android Version plugin is a gradle plugin that helps managing version for Android projects. Plugin is especially helpful when you are dealing with complex build structure with multiple flavours and apk splits.

A simple one class TouchListener that can be attached to any RecyclerView and handles multi selection in google photos style via long pressing on an item and moving the finger up/down to select more items (it even scrolls if you reach the edges of the RecyclerView).

Data binding based Android library for validating input.

  • Easy to use
  • Highly customisable

Android Studio / IDEA plug-ins to make Android multi-channel packages.

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