Max Katz
4 years ago
13 changed files with 402 additions and 9 deletions
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using Android.App; |
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using Android.Content.PM; |
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using Avalonia; |
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using Avalonia.Android; |
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namespace NativeEmbedSample.Android; |
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[Activity(Label = "NativeEmbedSample", Theme = "@style/MyTheme.NoActionBar", Icon = "@drawable/icon", LaunchMode = LaunchMode.SingleInstance, ConfigurationChanges = ConfigChanges.Orientation | ConfigChanges.ScreenSize)] |
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public class MainActivity : AvaloniaActivity<App> |
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{ |
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} |
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<Project Sdk="Microsoft.NET.Sdk"> |
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<PropertyGroup> |
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<TargetFramework>net6.0-android</TargetFramework> |
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<SupportedOSPlatformVersion>21</SupportedOSPlatformVersion> |
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<OutputType>Exe</OutputType> |
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<Nullable>enable</Nullable> |
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<ApplicationId>com.Avalonia.NativeEmbedSample</ApplicationId> |
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<ApplicationVersion>1</ApplicationVersion> |
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<ApplicationDisplayVersion>1.0</ApplicationDisplayVersion> |
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<AndroidPackageFormat>apk</AndroidPackageFormat> |
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<MSBuildEnableWorkloadResolver>true</MSBuildEnableWorkloadResolver> |
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</PropertyGroup> |
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<ItemGroup> |
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<None Remove="Assets\AboutAssets.txt" /> |
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</ItemGroup> |
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<ItemGroup> |
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<AndroidResource Include="..\..\..\build\Assets\Icon.png"> |
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<Link>Resources\drawable\Icon.png</Link> |
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</AndroidResource> |
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</ItemGroup> |
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<PropertyGroup Condition="'$(Configuration)'=='Release' and '$(TF_BUILD)' == ''"> |
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<DebugSymbols>True</DebugSymbols> |
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<RunAOTCompilation>True</RunAOTCompilation> |
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<EnableLLVM>True</EnableLLVM> |
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<AndroidEnableProfiledAot>True</AndroidEnableProfiledAot> |
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</PropertyGroup> |
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<PropertyGroup Condition="'$(Configuration)'=='Debug'"> |
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<EmbedAssembliesIntoApk>False</EmbedAssembliesIntoApk> |
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<RunAOTCompilation>False</RunAOTCompilation> |
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</PropertyGroup> |
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<PropertyGroup Condition="'$(Configuration)'=='Release'"> |
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<EmbedAssembliesIntoApk>True</EmbedAssembliesIntoApk> |
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</PropertyGroup> |
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<ItemGroup> |
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<PackageReference Include="Xamarin.AndroidX.AppCompat" Version="1.3.1.3" /> |
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<PackageReference Include="Xamarin.AndroidX.Lifecycle.ViewModel" Version="2.3.1.3" /> |
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</ItemGroup> |
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<ItemGroup> |
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<ProjectReference Include="..\..\..\src\Android\Avalonia.Android\Avalonia.Android.csproj" /> |
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<ProjectReference Include="..\..\..\packages\Avalonia\Avalonia.csproj" /> |
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<ProjectReference Include="..\NativeEmbedSample\NativeEmbedSample.csproj" /> |
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</ItemGroup> |
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<Import Project="..\..\..\build\BuildTargets.targets" /> |
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</Project> |
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@ -0,0 +1,4 @@ |
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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:installLocation="auto"> |
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<application android:label="ControlCatalog.Android" android:icon="@drawable/Icon"></application> |
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</manifest> |
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@ -0,0 +1,44 @@ |
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Images, layout descriptions, binary blobs and string dictionaries can be included |
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in your application as resource files. Various Android APIs are designed to |
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operate on the resource IDs instead of dealing with images, strings or binary blobs |
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directly. |
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For example, a sample Android app that contains a user interface layout (main.axml), |
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an internationalization string table (strings.xml) and some icons (drawable-XXX/icon.png) |
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would keep its resources in the "Resources" directory of the application: |
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Resources/ |
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drawable/ |
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icon.png |
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layout/ |
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main.axml |
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values/ |
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strings.xml |
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In order to get the build system to recognize Android resources, set the build action to |
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"AndroidResource". The native Android APIs do not operate directly with filenames, but |
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instead operate on resource IDs. When you compile an Android application that uses resources, |
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the build system will package the resources for distribution and generate a class called "R" |
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(this is an Android convention) that contains the tokens for each one of the resources |
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included. For example, for the above Resources layout, this is what the R class would expose: |
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public class R { |
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public class drawable { |
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public const int icon = 0x123; |
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} |
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public class layout { |
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public const int main = 0x456; |
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} |
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public class strings { |
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public const int first_string = 0xabc; |
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public const int second_string = 0xbcd; |
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} |
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} |
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You would then use R.drawable.icon to reference the drawable/icon.png file, or R.layout.main |
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to reference the layout/main.axml file, or R.strings.first_string to reference the first |
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string in the dictionary file values/strings.xml. |
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<?xml version="1.0" encoding="utf-8"?> |
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<layer-list xmlns:android="http://schemas.android.com/apk/res/android"> |
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<item> |
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<color android:color="@color/splash_background"/> |
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</item> |
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<item android:drawable="@drawable/icon" |
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android:width="120dp" |
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android:height="120dp" |
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android:gravity="center" /> |
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</layer-list> |
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<?xml version="1.0" encoding="utf-8"?> |
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<resources> |
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<color name="splash_background">#FFFFFF</color> |
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</resources> |
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@ -0,0 +1,17 @@ |
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<?xml version="1.0" encoding="utf-8" ?> |
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<resources> |
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<style name="MyTheme"> |
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</style> |
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<style name="MyTheme.NoActionBar" parent="@style/Theme.AppCompat.NoActionBar"> |
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<item name="android:windowActionBar">false</item> |
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<item name="android:windowNoTitle">true</item> |
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</style> |
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<style name="MyTheme.Splash" parent ="MyTheme.NoActionBar"> |
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<item name="android:windowBackground">@drawable/splash_screen</item> |
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<item name="android:windowContentOverlay">@null</item> |
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</style> |
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</resources> |
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@ -0,0 +1,16 @@ |
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using Android.App; |
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using Android.Content; |
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using Android.OS; |
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namespace NativeEmbedSample.Android; |
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[Activity(Theme = "@style/MyTheme.Splash", MainLauncher = true, NoHistory = true)] |
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public class SplashActivity : Activity |
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{ |
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protected override void OnResume() |
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{ |
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base.OnResume(); |
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StartActivity(new Intent(Application.Context, typeof(MainActivity))); |
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} |
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} |
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@ -0,0 +1,187 @@ |
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#nullable enable |
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using System; |
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using System.Diagnostics.CodeAnalysis; |
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using Android.Views; |
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using Android.Widget; |
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using Avalonia.Controls.Platform; |
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using Avalonia.Platform; |
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namespace Avalonia.Android.Platform |
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{ |
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internal class AndroidNativeControlHostImpl : INativeControlHostImpl |
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{ |
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private readonly AvaloniaView _avaloniaView; |
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public AndroidNativeControlHostImpl(AvaloniaView avaloniaView) |
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{ |
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_avaloniaView = avaloniaView; |
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} |
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public INativeControlHostDestroyableControlHandle CreateDefaultChild(IPlatformHandle parent) |
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{ |
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return new AndroidViewControlHandle(new FrameLayout(_avaloniaView.Context!), false); |
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} |
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public INativeControlHostControlTopLevelAttachment CreateNewAttachment(Func<IPlatformHandle, IPlatformHandle> create) |
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{ |
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var holder = new AndroidViewControlHandle(_avaloniaView, false); |
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AndroidNativeControlAttachment? attachment = null; |
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try |
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{ |
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var child = create(holder); |
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// It has to be assigned to the variable before property setter is called so we dispose it on exception
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#pragma warning disable IDE0017 // Simplify object initialization
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attachment = new AndroidNativeControlAttachment(child); |
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#pragma warning restore IDE0017 // Simplify object initialization
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attachment.AttachedTo = this; |
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return attachment; |
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} |
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catch |
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{ |
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attachment?.Dispose(); |
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holder?.Destroy(); |
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throw; |
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} |
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} |
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public INativeControlHostControlTopLevelAttachment CreateNewAttachment(IPlatformHandle handle) |
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{ |
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return new AndroidNativeControlAttachment(handle) |
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{ |
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AttachedTo = this |
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}; |
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} |
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public bool IsCompatibleWith(IPlatformHandle handle) => handle.HandleDescriptor == AndroidViewControlHandle.AndroidDescriptor; |
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class AndroidNativeControlAttachment : INativeControlHostControlTopLevelAttachment |
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{ |
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// ReSharper disable once NotAccessedField.Local (keep GC reference)
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private IPlatformHandle? _child; |
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private View? _view; |
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private AndroidNativeControlHostImpl? _attachedTo; |
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public AndroidNativeControlAttachment(IPlatformHandle child) |
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{ |
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_child = child; |
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_view = (child as AndroidViewControlHandle)?.View |
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?? Java.Lang.Object.GetObject<View>(child.Handle, global::Android.Runtime.JniHandleOwnership.DoNotTransfer); |
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} |
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[MemberNotNull(nameof(_view))] |
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private void CheckDisposed() |
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{ |
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if (_view == null) |
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throw new ObjectDisposedException(nameof(AndroidNativeControlAttachment)); |
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} |
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public void Dispose() |
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{ |
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if (_view != null && _attachedTo?._avaloniaView is ViewGroup parent) |
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{ |
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parent.RemoveView(_view); |
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} |
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_child = null; |
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_attachedTo = null; |
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_view?.Dispose(); |
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_view = null; |
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} |
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public INativeControlHostImpl? AttachedTo |
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{ |
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get => _attachedTo; |
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set |
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{ |
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CheckDisposed(); |
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var oldAttachedTo = _attachedTo; |
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_attachedTo = (AndroidNativeControlHostImpl?)value; |
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if (_attachedTo == null) |
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{ |
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oldAttachedTo?._avaloniaView.RemoveView(_view); |
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} |
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else |
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{ |
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_attachedTo._avaloniaView.AddView(_view); |
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} |
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} |
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} |
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public bool IsCompatibleWith(INativeControlHostImpl host) => host is AndroidNativeControlHostImpl; |
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public void HideWithSize(Size size) |
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{ |
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CheckDisposed(); |
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_view.Visibility = ViewStates.Gone; |
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} |
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public void ShowInBounds(Rect bounds) |
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{ |
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CheckDisposed(); |
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if (_attachedTo == null) |
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throw new InvalidOperationException("The control isn't currently attached to a toplevel"); |
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bounds *= _attachedTo._avaloniaView.TopLevelImpl.RenderScaling; |
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_view.Visibility = ViewStates.Visible; |
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_view.LayoutParameters = new FrameLayout.LayoutParams((int)bounds.Width, (int)bounds.Height) |
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{ |
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LeftMargin = (int)bounds.X, |
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TopMargin = (int)bounds.Y |
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}; |
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_view.RequestLayout(); |
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} |
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} |
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} |
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public class AndroidViewControlHandle : INativeControlHostDestroyableControlHandle, IDisposable |
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{ |
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internal const string AndroidDescriptor = "JavaHandle"; |
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private View? _view; |
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private bool _disposeView; |
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public AndroidViewControlHandle(View view, bool disposeView) |
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{ |
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_view = view; |
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_disposeView = disposeView; |
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} |
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public View View => _view ?? throw new ObjectDisposedException(nameof(AndroidViewControlHandle)); |
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public string HandleDescriptor => AndroidDescriptor; |
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IntPtr IPlatformHandle.Handle => _view?.Handle ?? default; |
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public void Destroy() |
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{ |
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Dispose(true); |
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} |
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void IDisposable.Dispose() |
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{ |
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Dispose(true); |
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} |
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~AndroidViewControlHandle() |
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{ |
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Dispose(false); |
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} |
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private void Dispose(bool disposing) |
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{ |
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if (_disposeView) |
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{ |
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_view?.Dispose(); |
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} |
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_view = null; |
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if (disposing) |
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{ |
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GC.SuppressFinalize(this); |
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} |
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} |
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} |
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} |
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