ApiDemos: Add maxAspectRatio demo

Bug: 72696928
Test: Install and open ApiDemos > App > Activity > Max Aspect Ratio > 1:1 / 16:9 / Any
Change-Id: Ie76c8c4babd6b4c281eec8ff977a0c02a868ee0e

3 files changed, 66 insertions, 0 deletions

diff --git a/samples/ApiDemos/AndroidManifest.xml b/samples/ApiDemos/AndroidManifest.xml
index 3f975f220..3896c74fc 100644
--- a/samples/ApiDemos/AndroidManifest.xml
+++ b/samples/ApiDemos/AndroidManifest.xml
@@ -298,6 +298,38 @@
             </intent-filter>
         </activity>
 
+        <activity android:name=".app.MaxAspectRatio$Square"
+                  android:label="@string/activity_max_aspect_ratio_square"
+                  android:resizeableActivity="false"
+                  android:theme="@android:style/Theme.DeviceDefault.Settings"
+                  android:maxAspectRatio="1">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.SAMPLE_CODE" />
+            </intent-filter>
+        </activity>
+
+        <activity android:name=".app.MaxAspectRatio$SixteenToNine"
+            android:label="@string/activity_max_aspect_ratio_16to9"
+            android:resizeableActivity="false"
+            android:theme="@android:style/Theme.DeviceDefault.Settings"
+            android:maxAspectRatio="1.77777778">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.SAMPLE_CODE" />
+            </intent-filter>
+        </activity>
+
+        <activity android:name=".app.MaxAspectRatio$Any"
+            android:label="@string/activity_max_aspect_ratio_any"
+            android:resizeableActivity="true"
+            android:theme="@android:style/Theme.DeviceDefault.Settings">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.SAMPLE_CODE" />
+            </intent-filter>
+        </activity>
+
         <activity android:name=".app.PresentationActivity"
                 android:label="@string/activity_presentation">
             <intent-filter>
diff --git a/samples/ApiDemos/res/values/strings.xml b/samples/ApiDemos/res/values/strings.xml
index 30d92ab88..59f2fe96e 100644
--- a/samples/ApiDemos/res/values/strings.xml
+++ b/samples/ApiDemos/res/values/strings.xml
@@ -63,6 +63,9 @@
     <string name="screen_orientation">Screen Orientation</string>
 
     <string name="activity_picture_in_picture">App/Activity/Picture in Picture</string>
+    <string name="activity_max_aspect_ratio_square">App/Activity/Max Aspect Ratio/1:1</string>
+    <string name="activity_max_aspect_ratio_16to9">App/Activity/Max Aspect Ratio/16:9</string>
+    <string name="activity_max_aspect_ratio_any">App/Activity/Max Aspect Ratio/Any</string>
     <string name="enter_picture_in_picture">Enter picture-in-picture mode</string>
 
     <string name="activity_translucent">App/Activity/Translucent</string>
diff --git a/samples/ApiDemos/src/com/example/android/apis/app/MaxAspectRatio.java b/samples/ApiDemos/src/com/example/android/apis/app/MaxAspectRatio.java
new file mode 100644
index 000000000..223cd9290
--- /dev/null
+++ b/samples/ApiDemos/src/com/example/android/apis/app/MaxAspectRatio.java
@@ -0,0 +1,31 @@
+/*
+ * 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.
+ * 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
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.apis.app;
+
+import android.app.Activity;
+
+public abstract class MaxAspectRatio extends Activity {
+
+    public static class Square extends MaxAspectRatio {
+    }
+
+    public static class SixteenToNine extends MaxAspectRatio {
+    }
+
+    public static class Any extends MaxAspectRatio {
+    }
+}