ZacSweers

// retries up to 3 times while exponentially backing off with each retry
                .retryWhen(errors ->
                        errors
                                .zipWith(
                                        Observable.range(1, MAX_RETRIES), (n, i) -> i
                                )
                                .flatMap(
                                        retryCount -> Observable.timer((long) Math.pow(4, retryCount), TimeUnit.SECONDS)
                                )
                )

DavidRyan

Reactive Forms with RxAndroid and TextInputLayout

Reactive Programming has been getting a lot of attention in the Android community lately. While it has uses throughout the application stack, we're going to focus here on using it to validate forms (exciting!). This approach cuts down on ugly nested if statements and transforms all of the validation logic to just a few simple lines using the RxJava framework. More, its robust and testable.

This post assumes some knowledge of how RxJava and lambdas work. If you need more of a refresher RxJava Retrolambda

Setup layout with TextInputLayout

eveliotc

#! /bin/bash
# from http://dtmilano.blogspot.com/2012/03/selecting-adb-device.html
# selects an android device

PROGNAME=$(basename $0)
UNAME=$(uname)
DEVICE_OPT=
for opt in "$@"
do
   case "$opt" in

chrisbanes

/*
 * Copyright 2014 Chris Banes
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software

staltz

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

---

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

---

chrisbanes

/*
 * Copyright (C) 2006 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software

cyrilmottier

package com.cyrilmottier.android.resourcesadditions;

import android.content.res.Resources;
import android.content.res.XmlResourceParser;
import android.os.Bundle;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;

/**
 * @author Cyril Mottier

cyrilmottier

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.cyrilmottier.android.anapp">
    
    <!-- ... -->
    
    <application
        android:icon="@drawable/ic_launcher"
        android:label="@string/config_app_name"
        android:theme="@style/Theme.AnApp" >

sjp38

#!/usr/bin/env monkeyrunner                                                         
                                                                                    
import time                                                                         
                                                                                    
from com.android.monkeyrunner import MonkeyRunner, MonkeyDevice                     
                                                                                    
device = MonkeyRunner.waitForConnection()                                           
     
# Touch down screen                                                                               
device.touch(100, 500, MonkeyDevice.DOWN)                                           

romannurik

/**
 * Creates a 'ghost' bitmap version of the given source drawable (ideally a BitmapDrawable).
 * In the ghost bitmap, the RGB values take on the values from the 'color' argument, while
 * the alpha values are derived from the source's grayscaled RGB values. The effect is that
 * you can see through darker parts of the source bitmap, while lighter parts show up as
 * the given color. The 'invert' argument inverts the computation of alpha values, and looks
 * best when the given color is a dark.
 */
private Bitmap createGhostIcon(Drawable src, int color, boolean invert) {
    int width = src.getIntrinsicWidth();