What’s New in Android Support Library (Google I/O ‘17)

// bundle.gradle
repositories {
    maven {  
        url "https://maven.google.com"
    }
}  
  
dependencies {
    compile 'com.android.support:appcompat-v7:26.0.0-beta1'
    ...
}  

// myfont.xml
<?xml version="1.0" encoding="utf-8"?>
<font-family xmlns:android="http://schemas.android.com/apk/res/android">
    <font
        app:fontStyle="normal" app:fontWeight="400"
        app:font="@font/myfont-regular" />
    <font
        app:fontStyle="normal" app:fontWeight="800"
        app:font="@font/myfont-bold" />
</font-family>

<TextView ...
    android:fontFamily="@font/myfont"
    android:textStyle="bold"/>

<style name="myfontstyle">
    <item name="android:fontFamily">@font/myfont</item>
</style>

Typeface typeface = ResourcesCompat.getFont(context, R.font.myfont);
textView.setTypeface(typeface);

FontRequest request = new FontRequest(
    "com.example.fontprovider.authority",
    "com.example.fontprovider",
    "Name of font",
    R.array.certs);

FontsContractCompat.FontRequestCallback callback =
    new FontsContractCompat.FontRequestCallback() {
        @Override
        public void onTypefaceRetrieved(Typeface typeface) {}
        @Override
        public void onTypefaceRequestFailed(int reason) {}
    }

// downloadedfont.xml

<?xml version="1.0" encoding="utf-8"?>  
<font-family xmlns:app="http://schemas.android.com/apk/res-auto">
    app:fontProviderAuthority="com.example.fontprovider.authority"
    app:fontProviderPackage="com.example.fontprovider"
    app:fontProviderQuery="dancing-script"
    app:fontProviderCerts="@array/certs">  
</font-family>  

Sample app
- https://github.com/googlesamples/android-DownloadableFonts

Public Docs
- https://developer.android.com/preview/features/downloadable-fonts.html

Google Fonts docs
- https://developers.google.com/fonts/docs/android

Google Play Services v11 beta
- https://developers.google.com/android/guides/beta-program

dependencies {
    ...
    compile "com.android.support:support-emoji:$version"
}  

FontRequest fontRequest = new FontRequest(
    "com.example.fontprovider",
    "com.example",
    "emoji compat Font Query", CERTIFICATES);
  
EmojiCompat.Config config = new FontRequstEmojiCompatConfig(this, fontRequest);  
EmojiCompat.init(config);  

dependencies {
    ...
    compile "com.android.support:support-emoji-bundle:$version"
}  

EmojiCompat.Config config = new FontRequstEmojiCompatConfig(this);  
EmojiCompat.init(config);  

Sample app
- https://github.com/googlesamples/android-EmojiCompat

Public Docs
- https://developer.android.com/preview/features/emoji-compat.html

Google Play Services v11 beta
- https://developers.google.com/android/guides/beta-program

// SpringAnimation
final SpringAnimation anim = new SpringAnimation(
    bugdroidImageView, // object to animate  
    TRANSLATION_Y,     // property to animate  
    0);                // equilibrim state  

anim.getSpring()
    .setDampingRatio(0.7f /* lower is more bouncy */)
    .setStiffness(1500f /* higher oscillates faster */) 

anim.setStartVelocity(velocityTracker.getYVelocity())
    .start(); 

// ic_dots.svg
<svg xmlns="http://www.w3.org/2000/svg"
     width="480"
     height="480"
     viewBox="0 0 480 480">
    <path fill="#414141"
          fill-rule="evenodd"
          d="M349.471,167.222a113.228,113.228,0,0,1-12.753..." />
</svg>

// res/drawable/buffalo.xml
<vector xmlns:android="http://schemas.android.com/apk/res/android"
    android:height="600dp"
    android:width="320dp"
    android:viewportHeight="600"
    android:viewportWidth="320">
    <group>
        <path android:name="buffalo_path"
              android:pathData="@string/buffalo" />  
    </group>  
</vector>  

// res/anim/buffalo_to_hippo.xml
<objectAnimator xmlns:android="http://schemas.android.com/apk/res/android"
    android:duration="1000"
    android:propertyName="pathData"
    android:valueFrom="@string/buffalo"
    android:valueTo="@string/hippo"
    android:valueType="pathType" />  

// res/drawable/animal_morph.xml
<animated-vector 
    xmlns:aapt="http://schemas.android.com/aapt"
    xmlns:android="http://schemas.android.com/apk/res/android"  
    android:drawable="@drawable/buffalo">  
    <target android:name="buffalo_path"
            android:animation="@anim/buffalo_to_hippo" />  
</animated-vector>  

// res/drawable/animal_morph.xml
<animated-vector
    xmlns:aapt="http://schemas.android.com/aapt"
    xmlns:android="http://schemas.android.com/apk/res/android">
    <aapt:attr name="android:drawable">
        <vector android:height="600dp"
                android:width="320dp"
                android:viewportHeight="600"
                android:viewportWidth="320">
            <group>
                <path android:name="buffalo_path"
                      android:pathData="@string/buffalo" />  
            </group>  
        </vector>  
    </aapt:attr>  
    <target android:name="buffalo_path"
            android:animation="@anim/buffalo_to_hippo" />  
</animated-vector>  

// res/drawable/animal_morph_bundle.xml
<animated-vector xmlns:aapt="http://schemas.android.com/aapt"
    xmlns:android="http://schemas.android.com/apk/res/android">
    <aapt:attr name="android:drawable">
        <vector android:height="600dp"
                android:width="320dp"
                android:viewportHeight="600"
                android:viewportWidth="320">  
            <group>  
                <path android:name="buffalo_path"
                      android:pathData="@string/buffalo" />  
            </group>  
        </vector>  
    </aapt:attr>    
    <target android:name="buffalo_path">  
        <aapt:attr name="android:animation">  
            <objectAnimator android:duration="1000"
                            android:propertyName="pathData"
                            android:valueFrom="@string/buffalo"
                            android:valueTo="@string/hippo"  
                            android:valueType="pathType" />      
        </aapt:attr>  
    </target>  
</animated-vector>

// res/interpolator/path_fastThenSlow.xml
<pathInterpolator  
    xmlns:android="http://schemas.android.com/apk/res/android"  
    android:pathData="M 0.0, 0.0 c 0.08,0.0 0.04,1.0 0.2,0.8 l 0.6,0.1 L 1.0,1.0" />  

// res/anim/rect_morph_fastThenSlow.xml
<objectAnimator
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:duration="1000"
    android:interpolator="@interpolator/path_fastThenSlow"
    android:propertyName="pathData"
    android:valueFrom="M0,0L24,0L24,24L0,24z"
    android:valueTo="M0,0L0,0L0,0L0,0z"
    android:valueType="pathType"
    android:repeatCount="2" />

// res/drawable/rect_path_anim_bundled.xml
<animated-vector 
    xmlns:aapt="http://schemas.android.com/aapt"
    xmlns:android="http://schemas.android.com/apk/res/android">  
    <aapt:attr name="android:drawable">
        <vector android:height="48dp"
                android:width="48dp"
                android:viewportHeight="48"
                android:viewportWidth="48">
            <group>
                <path android:name="rect"
                      android:pathData="M0,0L48,0L48,48L0,48z" />
            </group>
        </vector>
    </aapt:attr>
    <target android:name="rect">
        <aapt:attr name="android:animation">
            <objectAnimator android:duration="1000"
                            android:propertyName="pathData"
                            android:valueFrom="M0,0L48,0L48,48L0,48z"
                            android:valueTo="M0,0L0,0L0,0L0,0z"
                            android:valueType="pathType"> 
                <aapt:attr name="android:interpolator">
                    <pathInterpolator android:pathData="M 0.0,0.0 c 0.08,0.0 0.04,1.0 0.2,0.8 1 0.6,0.1 L 1.0,1.0" />
                </aapt:attr>
            </objectAnimator>
        </aapt>
    </target>     
</animated-vector>  

// CloudDataStore.java
class CloudDataStore extends PreferenceDataStore {  
    @Override  
    public void putBoolean(String key, boolean value) {  
        // Cache value immediately, launch async task to persist  
        // data to cloud service.  
    }  
  
    @Override  
    public void getBoolean(String key, boolean defValue) {  
        // Return cached value.  
        return false;  
    }  
}  

// MyPreferenceFragment.java

// Set up this PreferenceFragment to store  
// and retrieve data using CloudDataStore.  
PreferenceManager prefManager = getPreferenceManager();  
CloudDataStore cloudStore = new CloudDataStore();  
prefManager.setPreferenceDataStore(cloudStore);  

// Install drawer toggle
drawerToggle = new ActionBarDrawerToggle(this, drawerLayout, R.string.drawer_open, R.string.drawer_close);

// Disablee animation
drawerToggle.setDrawerSlideAnimationEnabled(false);