Improve IonicActionSheetOptions

Ref: http://ionicframework.com/docs/api/service/$ionicActionSheet/

ionic/ionic-tests.ts

@@ -84,13 +84,19 @@ class IonicTestController {
 
     private testActionSheet(): void {
         var closeActionSheetFn: ()=>void = this.$ionicActionSheet.show({
-            buttons: [],
+            buttons: [{ text: 'A button' }],
             titleText: "titleText",
             cancelText: "cancelText",
             destructiveText: "destructiveText",
             cancel: ()=>{ console.log("cancel"); },
-            buttonClicked: ()=>{ console.log("buttonClicked"); },
-            destructiveButtonClicked: ()=>{ console.log("destructiveButtonClicked"); },
+            buttonClicked: (index)=>{ 
+                console.log("buttonClicked");
+                return index === 0;
+            },
+            destructiveButtonClicked: ()=>{
+                console.log("destructiveButtonClicked");
+                return false;
+            },
             cancelOnStateChange: true,
             cssClass: "cssClass"
         });

ionic/ionic.d.ts

@@ -102,14 +102,17 @@ declare module ionic {
         interface IonicActionSheetService {
             show(options: IonicActionSheetOptions): ()=>void;
         }
+        interface IonicActionSheetButton {
+            text: string;
+        }
         interface IonicActionSheetOptions {
-            buttons?: Array<any>;
+            buttons?: Array<IonicActionSheetButton>;
             titleText?: string;
             cancelText?: string;
             destructiveText?: string;
             cancel?: ()=>any;
-            buttonClicked?: (index: any)=>any;
-            destructiveButtonClicked?: ()=>any;
+            buttonClicked?: (index: number)=>boolean;
+            destructiveButtonClicked?: ()=>boolean;
             cancelOnStateChange?: boolean;
             cssClass?: string;
         }