static void SetupInit(
Context activity,
Assembly resourceAssembly,
InitializationOptions?maybeOptions = null
)
{
Profile.FrameBegin();
Registrar.RegisterRendererToHandlerShim(RendererToHandlerShim.CreateShim);
if (!IsInitialized)
{
// Only need to get this once; it won't change
ApplicationContext = activity.ApplicationContext;
}
#pragma warning disable 618 // Still have to set this up so obsolete code can function
Context = activity;
#pragma warning restore 618
if (!IsInitialized)
{
// Only need to do this once
Profile.FramePartition("ResourceManager.Init");
ResourceManager.Init(resourceAssembly);
}
Profile.FramePartition("Color.SetAccent()");
// We want this to be updated when we have a new activity (e.g. on a configuration change)
// This could change if the UI mode changes (e.g., if night mode is enabled)
Color.SetAccent(GetAccentColor(activity));
_ColorButtonNormalSet = false;
if (!IsInitialized)
{
// Only need to do this once
Profile.FramePartition("Log.Listeners");
Internals.Log.Listeners.Add(new DelegateLogListener((c, m) => Trace.WriteLine(m, c)));
}
// We want this to be updated when we have a new activity (e.g. on a configuration change)
// because AndroidPlatformServices needs a current activity to launch URIs from
Profile.FramePartition("Device.PlatformServices");
var androidServices = new AndroidPlatformServices(activity);
Device.PlatformServices = androidServices;
Device.PlatformInvalidator = androidServices;
// use field and not property to avoid exception in getter
if (Device.info != null)
{
((AndroidDeviceInfo)Device.info).Dispose();
Device.info = null;
}
// We want this to be updated when we have a new activity (e.g. on a configuration change)
// because Device.Info watches for orientation changes and we need a current activity for that
Profile.FramePartition("create AndroidDeviceInfo");
Device.Info = new AndroidDeviceInfo(activity);
Profile.FramePartition("setFlags");
Device.SetFlags(s_flags);
Profile.FramePartition("AndroidTicker");
Ticker.SetDefault(null);
Profile.FramePartition("RegisterAll");
if (!IsInitialized)
{
if (maybeOptions.HasValue)
{
var options = maybeOptions.Value;
var handlers = options.Handlers;
var flags = options.Flags;
var effectScopes = options.EffectScopes;
//TODO: ExportCell?
//TODO: ExportFont
// renderers
Registrar.RegisterRenderers(handlers);
// effects
if (effectScopes != null)
{
for (var i = 0; i < effectScopes.Length; i++)
{
var effectScope = effectScopes[0];
Registrar.RegisterEffects(effectScope.Name, effectScope.Effects);
}
}
// css
Registrar.RegisterStylesheets(flags);
}
else
{
// Only need to do this once
Registrar.RegisterAll(new[] {
typeof(ExportRendererAttribute),
typeof(ExportCellAttribute),
typeof(ExportImageSourceHandlerAttribute),
typeof(ExportFontAttribute)
});
}
}
Profile.FramePartition("Epilog");
var currentIdiom = TargetIdiom.Unsupported;
// First try UIModeManager
using (var uiModeManager = UiModeManager.FromContext(ApplicationContext))
{
try
{
var uiMode = uiModeManager?.CurrentModeType ?? UiMode.TypeUndefined;
currentIdiom = DetectIdiom(uiMode);
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine($"Unable to detect using UiModeManager: {ex.Message}");
}
}
// Then try Configuration
if (TargetIdiom.Unsupported == currentIdiom)
{
var configuration = activity.Resources.Configuration;
if (configuration != null)
{
var minWidth = configuration.SmallestScreenWidthDp;
var isWide = minWidth >= TabletCrossover;
currentIdiom = isWide ? TargetIdiom.Tablet : TargetIdiom.Phone;
}
else
{
// Start clutching at straws
var metrics = activity.Resources?.DisplayMetrics;
if (metrics != null)
{
var minSize = Math.Min(metrics.WidthPixels, metrics.HeightPixels);
var isWide = minSize * metrics.Density >= TabletCrossover;
currentIdiom = isWide ? TargetIdiom.Tablet : TargetIdiom.Phone;
}
}
}
Device.SetIdiom(currentIdiom);
if (SdkInt >= BuildVersionCodes.JellyBeanMr1)
{
Device.SetFlowDirection(activity.Resources.Configuration.LayoutDirection.ToFlowDirection());
}
if (ExpressionSearch.Default == null)
{
ExpressionSearch.Default = new AndroidExpressionSearch();
}
IsInitialized = true;
Profile.FrameEnd();
}
