mfurtak

App Navigation

Lateral Navigation

• Switching between sibling elements
• Action bar can do this through tabs, or spinners
  • "Implementing Effective Navigation"
  • Action Bar compatibility for 2.1+ * No need to rush off ABS, but for new apps, go for ActionBarCompat
• View Pager

mfurtak

Android Graphics Performance

Reordering and Merging

• Trying to more automatically reorder graphics commands you give so that they're done in an optimal order
• Also merging individual draw commands into groups of like commands for efficiency
• All automatic, and potentitally available in the future

Multithreading in the Renderer

mfurtak

Google+ Sign-In for Android Developers

OTA Installs

• During sign-in, Play offers the user to install your app on their device, if they have a compatible device.
  • The user will also automatically be signed in on that device
• Integrated with Play Services, so is already on many devices
• Does all the OAuth2 token management for you

Using API

mfurtak

What's New in Android Developer Tools

Android Studio

• Based on IntelliJ IDEA

IntelliJ Experience

• Can warn you when you might be passing an incorrect variable based on a comparison of the variable name and the method name
• Find action popup allows you to search for actions you can do by searching by their name

mfurtak

The New Android SDK Build System

adt-dev@googlegroups.com

http://b.android.com

Why a new system?

• More extensible, customizable, more stable API
• Unify the build for the IDE and CI servers

mfurtak

Android Protips 3

Android Beam

• Receiver adds intent
• Can send arbitrary byte data

Lockscreen Widget

• Specify a different layout for the lockscreen

mfurtak

hourPaint = new Paint();
hourPaint.setARGB(255, 200, 200, 200);
hourPaint.setStrokeWidth(6F);
hourPaint.setAntiAlias(true);
hourPaint.setStrokeCap(Paint.Cap.ROUND);

// ...

float hrX = (float) Math.sin(hrRot) * hrLength;
float hrY = (float) -Math.cos(hrRot) * hrLength;

mfurtak

switch (metric) {
    case "status":
        return buildStatusResponse();
    case "ability": // Close enough!
    case "stability":
        return buildStabilityResponse();
    case "grove": // Uh, sure.
    case "gross": // This is how I feel.
    case "growth":
        return buildGrowthResponse();

mfurtak

switch (metric) {
    case "status":
        return buildStatusResponse();
    case "stability":
        return buildStabilityResponse();
    case "growth":
        return buildGrowthResponse();
    case "retention":
        return buildRetentionResponse();
    default:

mfurtak

package io.fabric.alexaskills.util;

import java.util.function.Consumer;

public class SsmlBuilder implements SsmlPhrase {
    private final StringBuilder stringBuilder;
    private boolean built = false;

    public SsmlBuilder() {
        stringBuilder = new StringBuilder();