私のAndroid Xamarinフォームアプリケーションは、ViewModel/Viewを作成して実行時にビューをモーダルスタックにプッシュするとき、ディープリンクによってトリガーされたときにビューをプッシュする準備ができていないときに、Xamarin Androidの説明できない遅れ
アプリケーションはディープリンクを正常に受信していますが、目的のビューを表示しようとするとかなりのパフォーマンスが低下します。
IOSで実行されている同じアプリケーションにこの遅延がありません。
ログとコードを見ると、MT2の後、MT3ログエントリの前に、「***」とマークされた行で遅延が発生します。
私はDevice.BeginInvokeOnMainThreadを使って問題を改善するか悪化させるかを試していますが、この問題には何の影響も見ませんでした。
perfのハングアップは何ですか？ TCPOptimizerは問題の一部ですか？ 関連性がある場合は、2つの異なるSamsung S8でコードを実行しています。
コード
protected override async void OnAppLinkRequestReceived(Uri uri)
{
//Aside: I would rather use System.Web.HttpUtility to parse this query string, but it seems I can't in an Xam PCL.
//Pattern:
//my.app.deeplink://<command>?<params>
//Examples:
// Deep Linking Web Navigation:
// my.app.deeplink://webnav?url=/ns/products/product/?id=1234¶m1=value1¶m2=value2
// Deep Linking Native Navigation:
// my.app.deeplink://view?name=SettingsPageView¶m1=value1¶m2=value2
try
{
m_oLogging.LogInfo("OnAppLinkRequestReceived: " + uri.ToString());
NavigationManager.DeepLinkCommand oDeepCmd = NavigationManager.ParseDeepLink(uri);
switch (oDeepCmd)
{
case NavigationManager.DeepLinkCommand.invalid:
m_oLogging.LogInfo("Deep Link deemed invalid. Doing nothing.");
break;
case NavigationManager.DeepLinkCommand.webnav:
//Query expected to be like: ?url=/ns/products/product/?id=1234¶m1=value1¶m2=value2
string szUri = uri.Query;
Uri oParsedURI = WebNavigationManager.URLS.ParseDeepLinkUri(szUri);
string szURL = oParsedURI.ToString();
m_oLogging.LogInfo(string.Format("Proceeding with webnav to [{0}].", szURL));
App oApp = ((App)Application.Current);
WebNavigationManager.Instance.NavigateToURL(szURL);
break;
case NavigationManager.DeepLinkCommand.view:
//Query like: ?name=SettingsPageView¶m1=value1¶m2=value2
string szView = uri.Query.Split('=')[1].Split('&')[0];
string szViewTypeName = string.Empty;
switch (szView)
{
case "SettingsPageView":
szViewTypeName = typeof(SettingsPageView).Name;
break;
default:
//Try to dynamically present the named view.
szViewTypeName = "my.app.namespace." + szView;
break;
}
if (ViewIsAlreadyLoaded(szViewTypeName))
{
//I'm already at that page, so chill!
m_oLogging.LogInfo(string.Format("View [{0}] is already loaded in one of the stacks. No need to load it again or duplicate it.", szViewTypeName));
}
else
{
m_oLogging.LogInfo(string.Format("Proceeding with presenting view [{0}].", szViewTypeName));
switch (szView)
{
case "SettingsPageView":
//There is nothing modal right now, or there is, but the top of the stack isn't the settings page.
m_oLogging.LogInfo(string.Format("Pushing known view modally: '{0}'", szViewTypeName));
Device.BeginInvokeOnMainThread(() =>
{
m_oLogging.LogInfo(string.Format("Pushing known view modally (MT1): '{0}'", szViewTypeName));
IViewModel oSPVM = new SettingsPageViewModel();
m_oLogging.LogInfo(string.Format("Pushing known view modally (MT2): '{0}'", szViewTypeName));
*** BaseView oSPV = new SettingsPageView(oSPVM);
m_oLogging.LogInfo(string.Format("Pushing known view modally (MT3): '{0}'", szViewTypeName));
MainPage.Navigation.PushModalAsync(oSPV, false);
m_oLogging.LogInfo(string.Format("Pushed known view modally (MT4): '{0}'", szViewTypeName));
});
m_oLogging.LogInfo(string.Format("Pushed known view modally: '{0}'", szViewTypeName));
break;
default:
//Try to dynamically present the named view.
var vViewModel = Activator.CreateInstance(Type.GetType(szViewTypeName + "Model"));
if (vViewModel != null)
{
var vView = Activator.CreateInstance(Type.GetType(szViewTypeName), vViewModel);
if (vView != null)
{
m_oLogging.LogInfo(string.Format("Pushing dynamic view modally: '{0}'", szViewTypeName));
Device.BeginInvokeOnMainThread(async() => await MainPage.Navigation.PushModalAsync(vView as Page, false));
m_oLogging.LogInfo(string.Format("Pushed dynamic view modally: '{0}'", szViewTypeName));
}
}
break;
}
}
break;
}
}
catch (Exception oExc)
{
m_oLogging.LogError(oExc.Message);
}
base.OnAppLinkRequestReceived(uri);
}
ランタイムデバッグコンテンツ
08-01 15:14:59.023 I/MyApp (29249): OnAppLinkRequestReceived: my.package.name://view/?name=SettingsPageView&Action=Clicked 08-01 15:14:59.030 I/MyApp (29249): Proceeding with presenting view [SettingsPageView]. 08-01 15:14:59.031 I/MyApp (29249): Pushing known view modally: 'SettingsPageView' 08-01 15:14:59.031 I/MyApp (29249): Pushed known view modally: 'SettingsPageView' Thread started: #17 08-01 15:14:59.079 D/Mono (29249): [0xb7190920] worker starting 08-01 15:14:59.153 D/[email protected]: Relayout returned: oldFrame=[0,0][1080,2220] newFrame=[0,0][1080,2220] result=0x7 surface={isValid=true -1281830912} surfaceGenerationChanged=true 08-01 15:14:59.153 D/[email protected]: mHardwareRenderer.initialize() mSurface={isValid=true -1281830912} hwInitialized=true 08-01 15:14:59.162 I/MyApp (29249): Pushing known view modally (MT1): 'SettingsPageView' Resolved pending breakpoint at 'SettingsPageViewModel.cs:25,1' to bool app.namespace.name.SettingsPageViewModel.get_PreferencePushService() [0x00001]. Resolved pending breakpoint at 'SettingsPageViewModel.cs:38,1' to bool app.namespace.name.SettingsPageViewModel.get_PreferencePushDelivery() [0x00001]. Resolved pending breakpoint at 'SettingsPageViewModel.cs:51,1' to bool app.namespace.name.SettingsPageViewModel.get_PreferencePushPromotion() [0x00001]. 08-01 15:14:59.340 I/MyApp (29249): Pushing known view modally (MT2): 'SettingsPageView' 08-01 15:14:59.488 D/Mono (29249): DllImport searching in: '__Internal' ('(null)'). 08-01 15:14:59.488 D/Mono (29249): Searching for 'java_interop_jnienv_call_static_object_method'. 08-01 15:14:59.488 D/Mono (29249): Probing 'java_interop_jnienv_call_static_object_method'. 08-01 15:14:59.488 D/Mono (29249): Found as 'java_interop_jnienv_call_static_object_method'. #############################[ 3 seconds of lag ]08-01 15:15:02.826 D/TcpOptimizer(29249): [my.package.name] Full closed: sid=125, tcpi_state=8
#############################[ 1 second of lag ]08-01 15:15:03.830 D/TcpOptimizer(29249): [my.package.name] Full closed: sid=130, tcpi_state=8 Thread finished: #15 The thread 'Unknown' (0xf) has exited with code 0 (0x0).
#############################[ 26 seconds of lag ]08-01 15:15:29.177 I/System.out(29249): (HTTPLog)-Static: isSBSettingEnabled false 08-01 15:15:29.177 I/System.out(29249): (HTTPLog)-Static: isSBSettingEnabled false 08-01 15:15:29.179 I/MyApp (29249): CustomerID: (known) e3ecf5c1-3920-4cc9-ad08-0c1b2145db2b (<-- this code runs while data is being read from the viewmodel for the view) 08-01 15:15:29.186 I/System.out(29249): (HTTPLog)-Static: isSBSettingEnabled false 08-01 15:15:29.187 I/System.out(29249): (HTTPLog)-Static: isSBSettingEnabled false 08-01 15:15:29.188 I/System.out(29249): (HTTPLog)-Static: isSBSettingEnabled false 08-01 15:15:29.188 I/System.out(29249): (HTTPLog)-Static: isSBSettingEnabled false Thread started: #18 08-01 15:15:29.285 D/Mono (29249): Assembly Loader probing location: '/Users/builder/data/lanes/4009/3a62f1ea/source/monodroid/builds/install/mono-armv7/lib/app.namespace.name.resources.dll'. 08-01 15:15:29.285 D/Mono (29249): Assembly Loader probing location: '/Users/builder/data/lanes/4009/3a62f1ea/source/monodroid/builds/install/mono-armv7/lib/app.namespace.name.resources.exe'. 08-01 15:15:29.291 D/Mono (29249): Assembly Loader probing location: '/storage/emulated/0/Android/data/my.package.name/files/.override/en-US/app.namespace.name.resources.dll'. 08-01 15:15:29.364 I/MyApp (29249): Pushing known view modally (MT3): 'SettingsPageView' 08-01 15:15:29.428 W/art (29249): JNI RegisterNativeMethods: attempt to register 0 native methods for md5b60ffeb829f638581ab2bb9b1a7f4f3f.LabelRenderer 08-01 15:15:29.646 W/art (29249): JNI RegisterNativeMethods: attempt to register 0 native methods for md5b6ed58bdd2dc5ff75bde29ef5e42d6e8.ExtendedSwitchRenderer 08-01 15:15:30.001 I/MyApp (29249): Pushed known view modally (MT4): 'SettingsPageView' 08-01 15:15:30.002 I/Choreographer(29249): Skipped 1851 frames! The application may be doing too much work on its main thread. 08-01 15:15:30.111 D/ScrollView(29249): onsize change changed 08-01 15:15:30.189 D/[email protected]: MSG_WINDOW_FOCUS_CHANGED 1 08-01 15:15:30.189 D/[email protected]: mHardwareRenderer.initializeIfNeeded()#2 mSurface={isValid=true -1281830912} 08-01 15:15:30.229 V/InputMethodManager(29249): Starting input: [email protected] nm : my.package.name ic=null 08-01 15:15:30.230 I/InputMethodManager(29249): [IMM] startInputInner - mService.startInputOrWindowGainedFocus 08-01 15:15:30.231 D/InputTransport(29249): Input channel constructed: fd=160 08-01 15:15:30.233 D/InputMethodManager(29249): HSI from window - flag : 0 Pid : 29249 08-01 15:15:30.252 W/IInputConnectionWrapper(29249): reportFullscreenMode on inexistent InputConnection 08-01 15:15:38.190 D/Mono (29249): [0xb7190920] worker finishing Thread finished: #17 The thread 'Unknown' (0x11) has exited with code 0 (0x0). 08-01 15:15:41.995 D/TcpOptimizer(29249): [my.package.name] Full closed: sid=171, tcpi_state=8 08-01 15:15:49.902 D/[email protected]: MSG_RESIZED_REPORT: frame=Rect(0, 0 - 1080, 2220) ci=Rect(0, 72 - 0, 144) vi=Rect(0, 72 - 0, 144) or=1 08-01 15:15:49.972 D/[email protected]: Relayout returned: oldFrame=[0,0][1080,2220] newFrame=[0,0][1080,2220] result=0x1 surface={isValid=true -1281830912} surfaceGenerationChanged=false 08-01 15:15:51.378 D/[email protected]: MSG_WINDOW_FOCUS_CHANGED 0 08-01 15:15:54.111 D/[email protected]: MSG_WINDOW_FOCUS_CHANGED 1 08-01 15:15:54.111 D/[email protected]: mHardwareRenderer.initializeIfNeeded()#2 mSurface={isValid=true -1281830912} 08-01 15:16:09.240 D/Mono (29249): [0xbf27c920] worker finishing Thread finished: #10 The thread 'Unknown' (0xa) has exited with code 0 (0x0).
どのような援助が歓迎です！