Add RequestPermission to become an Application activity callback like BackPress. (Patch 2/2)

application/application.android.ts

@@ -162,6 +162,7 @@ export class AndroidApplication extends observable.Observable implements definit
     public static saveActivityStateEvent = "saveActivityState";
     public static activityResultEvent = "activityResult";
     public static activityBackPressedEvent = "activityBackPressed";
+    public static activityRequestPermissionsEvent = "activityRequestPermissions";
 
     public paused: boolean;
     public nativeApp: android.app.Application;

application/application.d.ts

@@ -278,6 +278,26 @@ declare module "application" {
         bundle: any /* android.os.Bundle */;
     }
 
+    /**
+     * Data for the Android activity onRequestPermissions callback
+     */
+    export interface AndroidActivityRequestPermissionsEventData extends AndroidActivityEventData {
+        /**
+         * The request code.
+         */
+        requestCode: number,
+
+        /**
+         * The Permissions
+         */
+        permissions: Array<String>,
+
+        /**
+         * The Granted.
+         */
+        grantResults: Array<Number>
+    }
+
     /**
      * Data for the Android activity result event.
      */
@@ -440,6 +460,11 @@ declare module "application" {
          */
         on(event: "activityBackPressed", callback: (args: AndroidActivityBackPressedEventData) => void, thisArg?: any);
 
+        /**
+         * This event is raised on the back button is pressed in an android application.
+         */
+        on(event: "activityRequestPermissions", callback: (args: AndroidActivityBackPressedEventData) => void, thisArg?: any);
+
         /**
          * String value used when hooking to activityCreated event.
          */

ui/frame/frame.android.ts

@@ -803,6 +803,19 @@ class NativeScriptActivity extends android.app.Activity {
         }
     }
 
+    public onRequestPermissionsResult (requestCode: number, permissions: Array<String>, grantResults: Array<number>): void {
+        trace.write("NativeScriptActivity.onRequestPermissionsResult;", trace.categories.NativeLifecycle);
+
+        application.android.notify(<application.AndroidActivityRequestPermissionsEventData>{
+            eventName: "activityRequestPermissions",
+            object: application.android,
+            activity: this,
+            requestCode: requestCode,
+            permissions: permissions,
+            grantResults: grantResults
+        });
+    }
+
     protected onActivityResult(requestCode: number, resultCode: number, data: android.content.Intent): void {
         super.onActivityResult(requestCode, resultCode, data);
         trace.write(`NativeScriptActivity.onActivityResult(${requestCode}, ${resultCode}, ${data})`, trace.categories.NativeLifecycle);