Updated UI to display status of workers + added Start options for Worker + ListenableWorker.

Author: DamienDennehy

src/XamarinAndroidWorkerDemos/MainActivity.cs

@@ -2,10 +2,8 @@
 using Android.App;
 using Android.OS;
 using Android.Runtime;
-using Android.Support.Design.Widget;
 using Android.Support.V7.App;
 using Android.Views;
-using Android.Widget;
 
 namespace XamarinAndroidWorkerDemos
 {
@@ -20,9 +18,6 @@ protected override void OnCreate(Bundle savedInstanceState)
 
             Android.Support.V7.Widget.Toolbar toolbar = FindViewById<Android.Support.V7.Widget.Toolbar>(Resource.Id.toolbar);
             SetSupportActionBar(toolbar);
-
-            FloatingActionButton fab = FindViewById<FloatingActionButton>(Resource.Id.fab);
-            fab.Click += FabOnClick;
         }
 
         public override bool OnCreateOptionsMenu(IMenu menu)
@@ -34,21 +29,18 @@ public override bool OnCreateOptionsMenu(IMenu menu)
         public override bool OnOptionsItemSelected(IMenuItem item)
         {
             int id = item.ItemId;
-            if (id == Resource.Id.action_settings)
+            if (id == Resource.Id.action_start_worker)
+            {
+                return true;
+            }
+            else if (id == Resource.Id.action_start_listenable_worker)
             {
                 return true;
             }
 
             return base.OnOptionsItemSelected(item);
         }
 
-        private void FabOnClick(object sender, EventArgs eventArgs)
-        {
-            View view = (View) sender;
-            Snackbar.Make(view, "Replace with your own action", Snackbar.LengthLong)
-                .SetAction("Action", (Android.Views.View.IOnClickListener)null).Show();
-        }
-
         public override void OnRequestPermissionsResult(int requestCode, string[] permissions, [GeneratedEnum] Android.Content.PM.Permission[] grantResults)
         {
             Xamarin.Essentials.Platform.OnRequestPermissionsResult(requestCode, permissions, grantResults);

src/XamarinAndroidWorkerDemos/Resources/Resource.designer.cs

@@ -21,12 +21,4 @@
 
     <include layout="@layout/content_main" />
 
-    <android.support.design.widget.FloatingActionButton
-        android:id="@+id/fab"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_gravity="bottom|end"
-        android:layout_margin="@dimen/fab_margin"
-        app:srcCompat="@android:drawable/ic_dialog_email" />
-
 </android.support.design.widget.CoordinatorLayout>

src/XamarinAndroidWorkerDemos/Resources/layout/activity_main.xml

@@ -4,13 +4,14 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
+    android:padding="@dimen/layout_padding"
     app:layout_behavior="@string/appbar_scrolling_view_behavior"
     tools:showIn="@layout/activity_main">
 
     <TextView
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:layout_centerInParent="true"
-        android:text="Hello World!" />
+        android:layout_centerInParent="false"
+        android:id="@+id/worker_status"/>
 
 </RelativeLayout>

src/XamarinAndroidWorkerDemos/Resources/layout/content_main.xml

@@ -2,8 +2,13 @@
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools">
     <item
-        android:id="@+id/action_settings"
+        android:id="@+id/action_start_worker"
         android:orderInCategory="100"
-        android:title="@string/action_settings"
+        android:title="@string/action_start_worker"
         app:showAsAction="never" />
+	<item
+        android:id="@+id/action_start_listenable_worker"
+        android:orderInCategory="100"
+        android:title="@string/action_start_listenable_worker"
+        app:showAsAction="never" />	
 </menu>

src/XamarinAndroidWorkerDemos/Resources/menu/menu_main.xml

@@ -1,3 +1,3 @@
 <resources>
-    <dimen name="fab_margin">16dp</dimen>
+    <dimen name="layout_padding">16dp</dimen>
 </resources>

src/XamarinAndroidWorkerDemos/Resources/values/dimens.xml

@@ -1,4 +1,5 @@
 <resources>
-    <string name="app_name">XamarinAndroidWorkerDemos</string>
-    <string name="action_settings">Settings</string>
+    <string name="app_name">Worker Demos</string>
+    <string name="action_start_worker">Start Worker</string>
+	<string name="action_start_listenable_worker">Start Listenable Worker</string>
 </resources>