Import examples for MotionLayout.

Also rename the module existing samples for CosntraintLayout from "app"
to "constraintlayout" to be consistent with the samples for
MotionLayout.

Change-Id: I953df4803e376ce0461a9acb1731d1ec87b17fce

Author: thagikura

build.gradle

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2017 The Android Open Source Project
+ * Copyright (C) 2018 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.
@@ -17,11 +17,14 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
 buildscript {
+    ext.kotlin_version = '1.2.41'
     repositories {
+        google()
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.3.0'
+        classpath 'com.android.tools.build:gradle:3.2.0-alpha17'
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
@@ -30,6 +33,7 @@ buildscript {
 
 allprojects {
     repositories {
+        google()
         jcenter()
     }
 }

app/.gitignore constraintlayout/.gitignoreapp/.gitignore renamed to constraintlayout/.gitignore

@@ -17,12 +17,11 @@
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 25
-    buildToolsVersion "25.0.2"
+    compileSdkVersion 27
     defaultConfig {
         applicationId "com.example.android.constraintlayoutexamples"
         minSdkVersion 19
-        targetSdkVersion 25
+        targetSdkVersion 27
         versionCode 1
         versionName "1.0"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
@@ -37,5 +36,5 @@ dependencies {
     })
     compile 'com.android.support:appcompat-v7:25.1.1'
     testCompile 'junit:junit:4.12'
-    compile 'com.android.support.constraint:constraint-layout:1.0.1'
+    compile 'com.android.support.constraint:constraint-layout:1.1.2'
 }