chore(demo): delay API 33 permission request

Author: triniwiz

apps/demo/src/app.ts

@@ -51,16 +51,18 @@ Application.on('launch', (args) => {
 	});
 });
 
-messaging
-	.requestPermission()
-	.then(() => {
-		console.log('requestPermission', 'done');
-		messaging.registerDeviceForRemoteMessages().catch((e) => {
-			console.error('registerDeviceForRemoteMessages', e);
+if (global.isIOS) {
+	messaging
+		.requestPermission()
+		.then(() => {
+			console.log('requestPermission', 'done');
+			messaging.registerDeviceForRemoteMessages().catch((e) => {
+				console.error('registerDeviceForRemoteMessages', e);
+			});
+		})
+		.catch((e) => {
+			console.error('requestPermission', e);
 		});
-	})
-	.catch((e) => {
-		console.error('requestPermission', e);
-	});
+}
 
 Application.run({ moduleName: 'app-root' });

apps/demo/src/main-page.ts

@@ -1,7 +1,28 @@
 import { EventData, Page } from '@nativescript/core';
-import { MainViewModel } from "./main-view-model";
+import { firebase } from '@nativescript/firebase-core';
+import { MainViewModel } from './main-view-model';
 
+let didFire = false;
 export function navigatingTo(args: EventData) {
-    const page = <Page>args.object;
-    page.bindingContext = new MainViewModel();
+	const page = <Page>args.object;
+	page.bindingContext = new MainViewModel();
+
+	if (global.isAndroid && !didFire) {
+		firebase()
+			.messaging()
+			.requestPermission()
+			.then(() => {
+				console.log('requestPermission', 'done');
+				firebase()
+					.messaging()
+					.registerDeviceForRemoteMessages()
+					.catch((e) => {
+						console.error('registerDeviceForRemoteMessages', e);
+					});
+			})
+			.catch((e) => {
+				console.error('requestPermission', e);
+			});
+		didFire = true;
+	}
 }