amadeu01

CameraManager manager =
                (CameraManager) view.getContext().getSystemService(CAMERA_SERVICE);
        try {
            for (String cameraId : manager.getCameraIdList()) {
                CameraCharacteristics chars
                        = manager.getCameraCharacteristics(cameraId);
                App.logException(Log.DEBUG, "PhotoAction", chars.toString());

                manager.openCamera(cameraId, new CameraDevice.StateCallback() {
                    @Override

amadeu01

fun twofer(name: String = "you"): String {
    return "One for ${name}, one for me."
}

amadeu01

import org.junit.Ignore
import org.junit.Test
import kotlin.test.assertEquals

class TwoferTest {

    @Test
    fun noNameGiven() {
        assertEquals("One for you, one for me.", twofer())
    }

amadeu01

public class FirebaseMessagingService extends com.google.firebase.messaging.FirebaseMessagingService {

    @Override
    public void onMessageReceived(RemoteMessage remoteMessage) {
        super.onMessageReceived(remoteMessage);
        try {
            if (remoteMessage.getData().size() > 0) {
                // do stuff.....
            }

amadeu01

public class FirebaseMessagingHelper extends FirebaseInstanceIdService {

    static public String token;

    @Override
    public void onCreate() {
        super.onCreate();

        token = FirebaseInstanceId.getInstance().getToken();
        if(token != null) Timber.d("Token %s", token);

amadeu01

Design Pattern

• Creational Patterns
  1. Abstract Factory
  2. Builder
  3. Factory Method
  4. Object Pool
  5. Prototype
  6. Singleton
• Structural Patterns
• Behavioural Patterns

amadeu01

public class RxImmediateSchedulerRule implements TestRule {
    private Scheduler immediate = new Scheduler() {
        @Override
        public Disposable scheduleDirect(@NonNull Runnable run, long delay, @NonNull TimeUnit unit) {
            // this prevents StackOverflowErrors when scheduling with a delay
            return super.scheduleDirect(run, 0, unit);
        }

        @Override
        public Worker createWorker() {

amadeu01

@BeforeClass
public static void setUpRxSchedulers() {
    Scheduler immediate = new Scheduler() {
        @Override
        public Disposable scheduleDirect(@NonNull Runnable run, long delay, @NonNull TimeUnit unit) {
            // this prevents StackOverflowErrors when scheduling with a delay
            return super.scheduleDirect(run, 0, unit);
        }

        @Override

amadeu01

import Foundation
import PlaygroundSupport
import UIKit

public enum Device {
    case phone3_5inch
    case phone4inch
    case phone4_7inch
    case phone5_5inch
    case pad

amadeu01

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="io.github.amadeu01.cameraproportions.MainActivity">

    <FrameLayout