Fix: Crash in when livesync-ing minimized app

application/application-common.ts

@@ -4,7 +4,6 @@ import fs = require("file-system");
 import styleScope = require("ui/styling/style-scope");
 import observable = require("data/observable");
 import frame = require("ui/frame");
-import fileResolverModule = require("file-system/file-name-resolver");
 
 var events = new observable.Observable();
 global.moduleMerge(events, exports);
@@ -51,15 +50,4 @@ export function loadCss() {
             }
         }
     }
-}
-
-global.__onLiveSync = function () {
-    // Clear file resolver cache to respect newly added files.
-    fileResolverModule.clearCache();
-
-    // Reload app.css in case it was changed.
-    loadCss();
-
-    // Reload current page.
-    frame.reloadPage();
 }

application/application.android.ts

@@ -4,6 +4,7 @@ import frame = require("ui/frame");
 import types = require("utils/types");
 import observable = require("data/observable");
 import enums = require("ui/enums");
+import fileResolverModule = require("file-system/file-name-resolver");
 
 global.moduleMerge(appModule, exports);
 
@@ -71,6 +72,8 @@ var initEvents = function () {
                 return;
             }
 
+            (<any>androidApp).paused = true;
+
             if (activity === androidApp.foregroundActivity) {
                 if (exports.onSuspend) {
                     exports.onSuspend();
@@ -91,6 +94,8 @@ var initEvents = function () {
                 return;
             }
 
+            (<any>androidApp).paused = false;
+
             if (activity === androidApp.foregroundActivity) {
                 if (exports.onResume) {
                     exports.onResume();
@@ -347,3 +352,18 @@ function onConfigurationChanged(context: android.content.Context, intent: androi
         });
     }
 }
+
+global.__onLiveSync = function () {
+    if (exports.android && exports.android.paused) {
+        return;
+    }
+
+    // Clear file resolver cache to respect newly added files.
+    fileResolverModule.clearCache();
+
+    // Reload app.css in case it was changed.
+    appModule.loadCss();
+
+    // Reload current page.
+    frame.reloadPage();
+}

application/application.ios.ts

@@ -5,6 +5,7 @@ import view = require("ui/core/view");
 import definition = require("application");
 import enums = require("ui/enums");
 import uiUtils = require("ui/utils");
+import fileResolverModule = require("file-system/file-name-resolver");
 
 global.moduleMerge(appModule, exports);
 
@@ -227,3 +228,18 @@ exports.start = function () {
         throw new Error("iOS Application already started!");
     }
 }
+
+global.__onLiveSync = function () {
+    if (!started) {
+        return;
+    }
+
+    // Clear file resolver cache to respect newly added files.
+    fileResolverModule.clearCache();
+
+    // Reload app.css in case it was changed.
+    appModule.loadCss();
+
+    // Reload current page.
+    frame.reloadPage();
+}