JakeWharton

interface Thing {
  Object thing();
}

class CharSequenceThing implements Thing {
  @Override public CharSequence thing() {
    return "CharSequence!";
  }
}

athkalia

<?xml version="1.0"?>
<ruleset name="mybraces"
         xmlns="http://pmd.sourceforge.net/ruleset/2.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://pmd.sourceforge.net/ruleset/2.0.0 http://pmd.sourceforge.net/ruleset_2_0_0.xsd">

    <description>PMD rules and properties</description>

    <!--Specify the rule files and exclusions. Some rules have priority less than
        warning and they don't trigger the teamcity fail build capability.-->

vaughandroid

@Component(modules=MyModule.class)
@ApplicationScope
public interface MyComponent {
    void inject(MyApplication application);
}

@Module
public class MyModule {
    @Provides @ApplicationScope
    public String provideString() {

vaughandroid

@Component(modules=MyModule.class)
@ApplicationScope
public interface MyComponent {
    void inject(MyApplication application);
}

@Module
public class MyModule {
    
    @Provides @ApplicationScope

vaughandroid

package com.vaughandroid.test.espresso.idlingresources;

import android.app.Activity;
import android.os.Handler;
import android.support.annotation.IdRes;
import android.support.annotation.NonNull;
import android.support.test.espresso.*;
import android.view.View;

import java.lang.ref.WeakReference;

imran0101

/**
* Custom Scroll listener for RecyclerView.
* Based on implementation https://gist.github.com/ssinss/e06f12ef66c51252563e
*/
public abstract class EndlessRecyclerOnScrollListener extends RecyclerView.OnScrollListener {
    public static String TAG = "EndlessScrollListener";

    private int previousTotal = 0; // The total number of items in the dataset after the last load
    private boolean loading = true; // True if we are still waiting for the last set of data to load.
    private int visibleThreshold = 5; // The minimum amount of items to have below your current scroll position before loading more.

daschl

Writing Resilient Reactive Applications

This guide is a first draft (that will end up in the official docs) on writing resilient code for production with the Couchbase Java SDK. At the end, the reader will be able to write code that withstands bugs, latency issues or anything else that can make their application fail.

Note that lots of concepts can be applied for both synchronous and asynchronous access. When necessary, both patterns are discussed separately. Also, the focus is on database interaction, but if you are using RxJava as part of your stack you can apply most of the principles there as well (and should!).

RxJava 101 Recap: Cold and Hot Observables

When working with Observables, it is important to understand the difference between cold and hot. Cold Observables will start to emit events once a Observer subscribes, and will do it "fresh" for each Observer. Hot Observables instead are starting to emit data as soon as it becomes available, and will return the same (or parts of the same)

loeschg

/** Hook into existing tasks. */
tasks.whenTaskAdded { theTask ->
    excludeEspressoFilesIfNecessary(theTask)
}

/**
 * This excludes Espresso tests from Robolectric. http://stackoverflow.com/a/24706452/413254
 *
 * This was needed when using double-espresso.  I couldn't get Robolectric to exclude them
 * normally unless doing this. Double-espresso is used to fix a conflicting Dagger 1.2 dependency

JakeWharton

import com.google.auto.value.AutoValue;
import java.lang.annotation.Retention;
import java.lang.annotation.Target;

import static java.lang.annotation.ElementType.TYPE;
import static java.lang.annotation.RetentionPolicy.RUNTIME;

/**
 * Marks an {@link AutoValue @AutoValue}-annotated type for proper Gson serialization.
 * <p>

gsoltis

package com.firebase.client;

import com.firebase.client.core.Constants;
import rx.Observable;
import rx.Subscriber;
import rx.functions.Action0;
import rx.functions.Func1;
import rx.subscriptions.Subscriptions;

public class RxFirebase {