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Retrofit Introduction

Type-safe HTTP client for Android and Java by Square, Inc.

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Testing activity in Android Studio

How we build the app

Before we start writing our first UI test I want to describe our development process.

1. First, we write a test for a UI or logic that does not yet exist.
2. We expect to see build errors or failed tests.
3. Then we create a UI element or write program logic.
4. Finally, we run the test and make sure it passes.

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Proguard Configuration

1) Enable Proguard in your build.gradle module :

android {
    //...
 buildTypes {

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Android Tools Attributes

Android has a dedicated XML namespace intended for tools to be able to record information in XML files, and have that information stripped when the application is packaged such that there is no runtime or download size penalty. The namespace URI is http://schemas.android.com/tools and is usually bound to the tools: prefix:

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
 android:layout_width="match_parent"

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EventBus Introduction

General usage and API

Here we pick up on the 3 steps of the README and expand a bit on the code.

1: Define events

Events are POJO (plain old Java object) without any specific requirements.

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import android.app.Activity;
import android.content.Context;
import android.graphics.Rect;
import android.view.View;
import android.view.inputmethod.InputMethodManager;

public class KeyboardUtils {

    public static void hideKeyboard(Activity activity) {
        View view = activity.findViewById(android.R.id.content);

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#if (${PACKAGE_NAME} && ${PACKAGE_NAME} != "")package ${PACKAGE_NAME}#end

import com.mstv.presentation.scenes.base.view.ContentState
import com.mstv.presentation.scenes.base.view.LoadingState

data class ${NAME}(val loadingState: LoadingState = LoadingState.NONE,
                   val contentState: ContentState = ContentState.NONE,
                   val data: ${DataType}? = null,
                   val errorMessage: String? = null,
                   val snackMessage: String? = null) {

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#if (${PACKAGE_NAME} && ${PACKAGE_NAME} != "")package ${PACKAGE_NAME}#end

import android.support.v7.widget.RecyclerView
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import java.util.*

class ${NAME} : RecyclerView.Adapter<${Model}Adapter.ViewHolder>() {

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Publish AAR to jCenter and Maven Central

EDIT: You can find this same updated tutorial here -> Medium

Now I'm going to list how to publish an Android libray to jCenter and then syncronize it with Maven Central:

1. I use "Android Studio" and I have this simple android lib that I would like to be available on maven: CircularImageView

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All InputType for EditText

Constant	Description
none	There is no content type. The text is not editable.