alecplumb

import roboguice.activity.event.OnPauseEvent;
import roboguice.activity.event.OnResumeEvent;
import roboguice.event.EventManager;
import roboguice.event.Observes;
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;

import com.google.inject.Inject;

romannurik

<!--
  A button bar is a set of buttons at the bottom of an activity.
  An example is an AlertDialog with OK/Cancel buttons.

  Note that something similar can be accomplished using a
  split action bar and text-only action buttons, but this is an
  alternate presentation that's often preferred.
-->
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"

JakeWharton

public class TweetAdapter extends BaseAdapter {
    // ...

    public View getView(int position, View convertView, ViewGroup parent) {
        TweetViewHolder vh = TweetViewHolder.get(convertView, parent);
        Tweet item = getItem(position);
    
        vh.user.setText(item.user);
        vh.tweet.setText(item.tweet);

johnkil

public View getView(int position, View convertView, ViewGroup parent) {
    ViewHolder vh = ViewHolder.get(convertView, parent);
    Item item = getItem(position);
    
    vh.title.setText(item.title);
    vh.subtitle.setText(item.subtitle);

    return vh.root;
}

cyrilmottier

package com.cyrilmottier.android.citybikes;

import android.os.Bundle;

import com.cyrilmottier.android.avelov.R;
import com.cyrilmottier.android.citybikes.app.BaseActivity;

public class LicensesActivity extends BaseActivity {

    private WebView mWebView;

johnkil

import java.io.File;

import android.annotation.TargetApi;
import android.content.Context;
import android.os.Build;
import android.os.Environment;
import android.util.Log;

/**
 * File Util's.

ficusk

import com.google.gson.Gson;
import com.google.gson.JsonSyntaxException;

import com.android.volley.AuthFailureError;
import com.android.volley.NetworkResponse;
import com.android.volley.ParseError;
import com.android.volley.Request;
import com.android.volley.Response;
import com.android.volley.Response.ErrorListener;
import com.android.volley.Response.Listener;

ficusk

package your.awesome.app;

import android.graphics.Bitmap;
import android.support.v4.util.LruCache;
import com.android.volley.toolbox.ImageLoader.ImageCache;

public class LruBitmapCache extends LruCache<String, Bitmap> implements ImageCache {

	public LruBitmapCache(int maxSize) {
		super(maxSize);

JakeWharton

import com.android.volley.toolbox.HurlStack;
import com.squareup.okhttp.OkHttpClient;
import java.io.IOException;
import java.net.HttpURLConnection;
import java.net.URL;

/**
 * An {@link com.android.volley.toolbox.HttpStack HttpStack} implementation which
 * uses OkHttp as its transport.
 */

dodyg

#Intro

Kotlin is a new programming language for the JVM. It produces Java bytecode, supports Android and generates JavaScript. The latest version of the language is Kotlin M5.3

Kotlin project website is at kotlin.jetbrains.org.

All the codes here can be copied and run on Kotlin online editor.

Let's get started.