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conceptdevconceptdev
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drag-drop-done
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8 files changed

+92
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‎GetStarted/Notes/MultiPage/Notes.Android/ItemDragAndDropEffect.cs‎

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using System;
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using Android.Content;
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using Notes.Droid.Effects;
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using Xamarin.Forms;
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using Xamarin.Forms.Platform.Android;
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using AView = Android.Widget.AdapterView;
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using LView = Android.Widget.ListView;
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using ADragFlags = Android.Views.DragFlags;
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[assembly: ResolutionGroupName("Notes")]
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[assembly: ExportEffect(typeof(ItemDragAndDropEffect), "ItemDragAndDropEffect")]
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namespace Notes.Droid.Effects
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{
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public class ItemDragAndDropEffect : PlatformEffect
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{
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protected override void OnAttached()
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{
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// configure the ListView
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(Control as LView).OnItemLongClickListener = new ItemLongClickListen(this);
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(Control as LView).LongClickable = true;
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//Control.SetBackgroundColor(Android.Graphics.Color.LightGreen); // HACK: show it's bound
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}
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protected override void OnDetached()
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{
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if (Control != null && Control.Handle != IntPtr.Zero)
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(Control as AView).OnItemLongClickListener = null;
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}
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public class ItemLongClickListen : Java.Lang.Object, AView.IOnItemLongClickListener
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{
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ItemDragAndDropEffect _dragAndDropEffect;
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public ItemLongClickListen(ItemDragAndDropEffect dragAndDropEffect)
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{
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_dragAndDropEffect = dragAndDropEffect;
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}
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public bool OnItemLongClick(AView parent, Android.Views.View v, int position, long id)
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{
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if (v.Handle == IntPtr.Zero)
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return false;
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// get the Note
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var noteString = (parent as LView).GetItemAtPosition(position).ToString();
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// clipData is the text from the note
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var data = ClipData.NewPlainText(
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new Java.Lang.String("Note"),
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new Java.Lang.String(noteString));
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// create a visual drag representation from the view
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var dragShadowBuilder = new AView.DragShadowBuilder(v);
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// start dragging
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v.StartDragAndDrop(data, dragShadowBuilder, v, (int)ADragFlags.Global);
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return true;
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}
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}
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}
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}

‎GetStarted/Notes/MultiPage/Notes.Android/Notes.Android.csproj‎

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<MonoAndroidAssetsPrefix>Assets</MonoAndroidAssetsPrefix>
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<TargetFrameworkVersion>v9.0</TargetFrameworkVersion>
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<AndroidHttpClientHandlerType>Xamarin.Android.Net.AndroidClientHandler</AndroidHttpClientHandlerType>
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<NuGetPackageImportStamp></NuGetPackageImportStamp>
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<NuGetPackageImportStamp>
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</NuGetPackageImportStamp>
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</PropertyGroup>
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<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
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<DebugSymbols>true</DebugSymbols>
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</PackageReference>
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</ItemGroup>
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<ItemGroup>
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<Compile Include="ItemDragAndDropEffect.cs" />
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<Compile Include="MainActivity.cs" />
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<Compile Include="Resources\Resource.Designer.cs" />
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<Compile Include="Properties\AssemblyInfo.cs" />
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<AndroidResource Include="Resources\mipmap-xxxhdpi\launcher_foreground.png" />
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</ItemGroup>
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<ItemGroup>
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<Folder Include="Resources\drawable\" />
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<Folder Include="Resources\drawable-hdpi\" />
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<Folder Include="Resources\drawable-xhdpi\" />
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<Folder Include="Resources\drawable-xxhdpi\" />
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<Folder Include="Resources\drawable-xxxhdpi\" />
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<Folder Include="Resources\drawable\" />
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</ItemGroup>
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<ItemGroup>
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<ProjectReference Include="..\Notes\Notes.csproj">

‎GetStarted/Notes/MultiPage/Notes.Android/Properties/AndroidManifest.xml‎

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<?xml version="1.0" encoding="utf-8"?>
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<manifest xmlns:android="http://schemas.android.com/apk/res/android" android:versionCode="1" android:versionName="1.0" package="com.companyname.Notes">
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<uses-sdk android:minSdkVersion="21" />
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<manifest xmlns:android="http://schemas.android.com/apk/res/android" android:versionCode="1" android:versionName="1.0" package="com.companyname.Notes" android:installLocation="auto">
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<uses-sdk android:minSdkVersion="21" android:targetSdkVersion="28" />
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<application android:label="Notes.Android"></application>
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</manifest>

‎GetStarted/Notes/MultiPage/Notes.sln‎

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{BACFD4C2-92A7-4CBA-A964-E8F799CC647C}.Debug|iPhone.Build.0 = Debug|Any CPU
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{BACFD4C2-92A7-4CBA-A964-E8F799CC647C}.Debug|iPhoneSimulator.ActiveCfg = Debug|Any CPU
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{BACFD4C2-92A7-4CBA-A964-E8F799CC647C}.Debug|iPhoneSimulator.Build.0 = Debug|Any CPU
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{BACFD4C2-92A7-4CBA-A964-E8F799CC647C}.Debug|iPhoneSimulator.Deploy.0 = Debug|Any CPU
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{BACFD4C2-92A7-4CBA-A964-E8F799CC647C}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{BACFD4C2-92A7-4CBA-A964-E8F799CC647C}.Release|Any CPU.Build.0 = Release|Any CPU
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{BACFD4C2-92A7-4CBA-A964-E8F799CC647C}.Release|Any CPU.Deploy.0 = Release|Any CPU

‎GetStarted/Notes/MultiPage/Notes/ItemDragAndDropEffect.cs‎

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using System;
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using Xamarin.Forms;
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namespace Notes
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{
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public class ItemDragAndDropEffect : RoutingEffect
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{
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public ItemDragAndDropEffect() : base("Notes.ItemDragAndDropEffect")
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{
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}
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}
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}

‎GetStarted/Notes/MultiPage/Notes/Models/Note.cs‎

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public string Filename { get; set; }
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public string Text { get; set; }
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public DateTime Date { get; set; }
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public override string ToString()
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{
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return $"{Text} ({Date})";
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}
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}
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}

‎GetStarted/Notes/MultiPage/Notes/Notes.csproj‎

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<ItemGroup>
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<EmbeddedResource Remove="MainPage.xaml" />
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</ItemGroup>
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<ItemGroup>
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<EmbeddedResource Update="Page1.xaml">
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<Generator>MSBuild:UpdateDesignTimeXaml</Generator>
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</EmbeddedResource>
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</ItemGroup>
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</Project>

‎GetStarted/Notes/MultiPage/Notes/NotesPage.xaml‎

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<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
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xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
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x:Class="Notes.NotesPage"
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xmlns:effects="clr-namespace:Notes"
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Title="Notes">
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<ContentPage.ToolbarItems>
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<ToolbarItem Text="+"
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<ListView x:Name="listView"
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Margin="20"
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ItemSelected="OnListViewItemSelected">
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<ListView.Effects>
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<effects:ItemDragAndDropEffect />
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</ListView.Effects>
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<ListView.ItemTemplate>
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<DataTemplate>
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<TextCell Text="{Binding Text}"

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