Fix API typo

shell/platform/android/io/flutter/app/FlutterActivity.java

@@ -114,7 +114,7 @@ protected void onPostResume() {
 
     // @Override - added in API level 23
     public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
-        eventDelegate.onRequestPermissionResult(requestCode, permissions, grantResults);
+        eventDelegate.onRequestPermissionsResult(requestCode, permissions, grantResults);
     }
 
     @Override

shell/platform/android/io/flutter/app/FlutterActivityDelegate.java

@@ -29,9 +29,7 @@
 import android.widget.FrameLayout;
 import io.flutter.plugin.common.BinaryMessenger;
 import io.flutter.plugin.common.PluginRegistry;
-import io.flutter.plugin.common.PluginRegistry.ActivityResultListener;
 import io.flutter.plugin.common.PluginRegistry.Registrar;
-import io.flutter.plugin.common.PluginRegistry.RequestPermissionResultListener;
 import io.flutter.plugin.platform.PlatformPlugin;
 import io.flutter.util.Preconditions;
 import io.flutter.view.FlutterMain;
@@ -122,9 +120,16 @@ public Registrar registrarFor(String pluginKey) {
     }
 
     @Override
+    public boolean onRequestPermissionsResult(
+            int requestCode, String[] permissions, int[] grantResults) {
+        return flutterView.getPluginRegistry().onRequestPermissionsResult(requestCode, permissions, grantResults);
+    }
+
+    @Override
+    @Deprecated
     public boolean onRequestPermissionResult(
             int requestCode, String[] permissions, int[] grantResults) {
-        return flutterView.getPluginRegistry().onRequestPermissionResult(requestCode, permissions, grantResults);
+        return onRequestPermissionsResult(requestCode, permissions, grantResults);
     }
 
     @Override

shell/platform/android/io/flutter/app/FlutterActivityEvents.java

@@ -9,6 +9,7 @@
 import android.os.Bundle;
 import io.flutter.plugin.common.PluginRegistry.ActivityResultListener;
 import io.flutter.plugin.common.PluginRegistry.RequestPermissionResultListener;
+import io.flutter.plugin.common.PluginRegistry.RequestPermissionsResultListener;
 
 /**
  * A collection of Android {@code Activity} methods that are relevant to the
@@ -21,7 +22,10 @@
  * {@code FlutterActivity}.</p>
  */
 public interface FlutterActivityEvents
-        extends ComponentCallbacks2, ActivityResultListener, RequestPermissionResultListener {
+        extends ComponentCallbacks2,
+                ActivityResultListener,
+                RequestPermissionResultListener,
+                RequestPermissionsResultListener {
     /**
      * @see android.app.Activity#onCreate(android.os.Bundle)
      */

shell/platform/android/io/flutter/app/FlutterFragmentActivity.java

@@ -113,7 +113,7 @@ protected void onPostResume() {
     // @Override - added in API level 23
     public void onRequestPermissionsResult(
             int requestCode, String[] permissions, int[] grantResults) {
-        eventDelegate.onRequestPermissionResult(requestCode, permissions, grantResults);
+        eventDelegate.onRequestPermissionsResult(requestCode, permissions, grantResults);
     }
 
     @Override

shell/platform/android/io/flutter/app/FlutterPluginRegistry.java

@@ -21,6 +21,7 @@
 public class FlutterPluginRegistry
   implements PluginRegistry,
              PluginRegistry.RequestPermissionResultListener,
+             PluginRegistry.RequestPermissionsResultListener,
              PluginRegistry.ActivityResultListener,
              PluginRegistry.NewIntentListener,
              PluginRegistry.UserLeaveHintListener,
@@ -33,7 +34,7 @@ public class FlutterPluginRegistry
     private FlutterView mFlutterView;
 
     private final Map<String, Object> mPluginMap = new LinkedHashMap<>(0);
-    private final List<RequestPermissionResultListener> mRequestPermissionResultListeners = new ArrayList<>(0);
+    private final List<RequestPermissionsResultListener> mRequestPermissionsResultListeners = new ArrayList<>(0);
     private final List<ActivityResultListener> mActivityResultListeners = new ArrayList<>(0);
     private final List<NewIntentListener> mNewIntentListeners = new ArrayList<>(0);
     private final List<UserLeaveHintListener> mUserLeaveHintListeners = new ArrayList<>(0);
@@ -113,9 +114,21 @@ public Registrar publish(Object value) {
         }
 
         @Override
+        @Deprecated
         public Registrar addRequestPermissionResultListener(
-                RequestPermissionResultListener listener) {
-            mRequestPermissionResultListeners.add(listener);
+                final RequestPermissionResultListener listener) {
+            return addRequestPermissionsResultListener(new RequestPermissionsResultListener() {
+                @Override
+                public boolean onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
+                    return listener.onRequestPermissionResult(requestCode, permissions, grantResults);
+                }
+            });
+        }
+
+        @Override
+        public Registrar addRequestPermissionsResultListener(
+                RequestPermissionsResultListener listener) {
+            mRequestPermissionsResultListeners.add(listener);
             return this;
         }
 
@@ -145,15 +158,21 @@ public Registrar addViewDestroyListener(ViewDestroyListener listener) {
     }
 
     @Override
-    public boolean onRequestPermissionResult(int requestCode, String[] permissions, int[] grantResults) {
-        for (RequestPermissionResultListener listener : mRequestPermissionResultListeners) {
-            if (listener.onRequestPermissionResult(requestCode, permissions, grantResults)) {
+    public boolean onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
+        for (RequestPermissionsResultListener listener : mRequestPermissionsResultListeners) {
+            if (listener.onRequestPermissionsResult(requestCode, permissions, grantResults)) {
                 return true;
             }
         }
         return false;
     }
 
+    @Deprecated
+    @Override
+    public boolean onRequestPermissionResult(int requestCode, String[] permissions, int[] grantResults) {
+      return onRequestPermissionsResult(requestCode, permissions, grantResults);
+    }
+
     @Override
     public boolean onActivityResult(int requestCode, int resultCode, Intent data) {
         for (ActivityResultListener listener : mActivityResultListeners) {

shell/platform/android/io/flutter/plugin/common/PluginRegistry.java

@@ -115,14 +115,29 @@ interface Registrar {
          */
         Registrar publish(Object value);
 
+        /**
+         * Adds a callback allowing the plugin to take part in handling incoming
+         * calls to {@link Activity#onRequestPermissionsResult(int, String[], int[])}
+         * or {android.support.v4.app.ActivityCompat.OnRequestPermissionsResultCallback#onRequestPermissionsResult(int, String[], int[])}.
+         *
+         * @param listener a {@link RequestPermissionsResultListener} callback.
+         * @return this {@link Registrar}.
+         */
+        Registrar addRequestPermissionsResultListener(RequestPermissionsResultListener listener);
+
         /**
          * Adds a callback allowing the plugin to take part in handling incoming
          * calls to {@link Activity#onRequestPermissionsResult(int, String[], int[])}
          * or {android.support.v4.app.ActivityCompat.OnRequestPermissionsResultCallback#onRequestPermissionsResult(int, String[], int[])}.
          *
          * @param listener a {@link RequestPermissionResultListener} callback.
          * @return this {@link Registrar}.
+
+         * @deprecated on 2018-01-02 because of misspelling. This method will be made unavailable
+         * on 2018-02-06 (or at least four weeks after the deprecation is released). Use
+         * {@link #addRequestPermissionsResultListener(RequestPermissionsResultListener)} instead.
          */
+        @Deprecated
         Registrar addRequestPermissionResultListener(RequestPermissionResultListener listener);
 
         /**
@@ -163,13 +178,32 @@ interface Registrar {
     }
 
     /**
-     * Delegate interface for handling results of permission requests on
+     * Delegate interface for handling result of permissions requests on
      * behalf of the main {@link Activity}.
      */
+    interface RequestPermissionsResultListener {
+        /**
+         * @return true if the result has been handled.
+         */
+        boolean onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults);
+    }
+
+    /**
+     * Delegate interface for handling result of permissions requests on
+     * behalf of the main {@link Activity}.
+     *
+     * Deprecated on 2018-01-02 because of misspelling. This interface will be made
+     * unavailable on 2018-02-06 (or at least four weeks after the deprecation is released).
+     * Use {@link RequestPermissionsResultListener} instead.
+     */
     interface RequestPermissionResultListener {
         /**
          * @return true if the result has been handled.
+         * @deprecated on 2018-01-02 because of misspelling. This method will be made
+         * unavailable on 2018-02-06 (or at least four weeks after the deprecation is released).
+         * Use {@link RequestPermissionsResultListener} instead.
          */
+        @Deprecated
         boolean onRequestPermissionResult(int requestCode, String[] permissions, int[] grantResults);
     }