3rd Party Android

Slides from my talk on Google IO extended event in May 2016 about introduction to various 3rd party libraries in Android

Transcript

1. 3rd Party Android - Kshitij Aggarwal (@funkyidol)
2. JWAP (Jake Wharton Assisted Programming) • ButterKnife • Retrofit/Volley • Timber • Picasso/Glide • OkHttp • Dagger • Realm • Stetho
3. JWAP (Jake Wharton Assisted Programming) • ButterKnife • Retrofit/Volley • Timber • Picasso/Glide • OkHttp • Dagger • Realm • Stetho
4. ButterKnife • http://jakewharton.github.io/butterknife/ @BindView(R.id.tv_total_items) TextView tvTotalItems; @BindView(R.id.pb_login) ProgressBar progressBar; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_base); ButterKnife.bind(this); } @OnClick(R.id.nav_home) public void goToHome() { //Code to run on click of home }
5. ButterKnife Pros • You write less code • Cached findViewById calls • No Need to write setOnClickListener • Group click handler listeners • Cleaner code overall • Loads of other convenience annotations Cons • Issue with RecyclerViews click handling • Major changes between versions • Runtime errors
6. Retrofit • http://square.github.io/retrofit/ public interface GitHubService { @GET("users/{user}/repos") Call<List<Repo>> listRepos(@Path("user") String user); @GET("group/{id}/users") Call<List<User>> groupList(@Path("id") int groupId); } Retrofit retrofit = new Retrofit.Builder() .baseUrl("https://api.github.com/") .build(); GitHubService service = retrofit.create(GitHubService.class); Call<List<Repo>> repos = service.listRepos("octocat");
7. Retrofit Pros • You write less code • Everything is done for you • Pluggable infrastructure • Ability to add network interceptors (e.g. Stetho) • Bundle with OkHttp3, Okio, Moshi for a world class network architecture • Cleaner code overall • Loads of other convenience annotations Cons • None that I could find
8. Timber • https://github.com/JakeWharton/timber Timber.plant(new Timber.DebugTree()); Timber.e(throwable, "No Session at app Launch"); Timber.d("Session Loaded " + sessionIdPojo); 05-18 11:44:22.909 3053-3053/com.android D/MyApplication: Session Loaded 44tslt6pf85tvsb59qefnd1ba2
9. Timber Pros • You write less code • No need for TAG • Awesome way to log errors • Gives you control when and where logs will appear • Pluggable Infrastructure e.g. Crashlytics • Great Open Source project to learn from Cons • None that I could find
10. Picasso • http://square.github.io/picasso/ Picasso.with(context).load("http://i.imgur.com/DvpvklR.png").into(imageView); Picasso.with(context).load(url).resize(50, 50).centerCrop().into(imageView); Picasso.with(context).load(R.drawable.landing_screen).into(imageView1); Picasso.with(context).load("file:///android_asset/DvpvklR.png").into(imageView2); Picasso.with(context).load(new File(...)).into(imageView3);
11. Picasso Pros • You write less code • Auto request cancellation in list adapters • Auto managed memory • One of the best ways to handle images in the most optimised way • Disc & Memory caching Cons • None that I could find
12. OkHttp • http://square.github.io/okhttp/ OkHttpClient client = new OkHttpClient(); String run(String url) throws IOException { Request request = new Request.Builder() .url(url) .build(); Response response = client.newCall(request).execute(); return response.body().string(); }
13. OkHttp Pros • You write less code • Much simpler way to handle network requests • Supports the latest Web protocol standards like HTTP/2, SPDY etc • Updated outside the platform to get the latest version • Better handles exceptional cases • Asynchronous built in Cons • None that I could find
14. Realm • http://realm.io public class Dog extends RealmObject { @Required // Name cannot be null private String name; private int age; } Dog dog = new Dog(); dog.setName("Rex"); dog.setAge(1); RealmConfiguration realmConfig = new RealmConfiguration.Builder(context).build(); Realm realm = Realm.getInstance(realmConfig); realm.beginTransaction(); realm.copyToRealm(dog); realm.commitTransaction(); final RealmResults<Dog> puppies = realm.where(Dog.class).lessThan("age", 2).findAll();
15. Realm Pros • You write less code • No-SQL all the things • Ridiculously easy to read & write data • Much natural way of thinking about data storage • Faster than Ferrari Cons • Unstable API’s. Still under active development • Easy to forget about read/write state conflict
16. Honorary Mentions • Joda Time (https://github.com/dlew/joda-time-android) • Event Bus (https://github.com/greenrobot/EventBus) • Dagger (http://square.github.io/dagger/) • Stetho (http://facebook.github.io/stetho/) • Glide (https://github.com/bumptech/glide) • Volley (https://developer.android.com/training/volley/request.html) • Moshi (https://github.com/square/moshi)
17. Questions?
18. Thankyou.. For not sleeping!! @funkyidol gitter.im/funkyidol/AndroidDevWorld/