2
私はXamarin.Formsの問題に直面しており、特にAndroidのTabbedPageに問題があります。Xamarin.Forms Android StackOverflowError with TabbedPage
4つのContentPageを含むTabbedPageを作成しました。各ContentPageには、カスタムItemTemplate（XAMLでは50行以上）のListViewが含まれています。 （私は減らすことはできません
Java.Lang.StackOverflowError:
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() [0x0000c] in /Users/builder/data/lanes/3819/96c7ba6c/source/mono/mcs/class/referencesource/mscorlib/system/runtime/exceptionservices/exceptionservicescommon.cs:143
at Java.Interop.JniEnvironment+InstanceMethods.CallNonvirtualVoidMethod (Java.Interop.JniObjectReference instance, Java.Interop.JniObjectReference type, Java.Interop.JniMethodInfo method, Java.Interop.JniArgumentValue* args) [0x000a7] in /Users/builder/data/lanes/3819/96c7ba6c/source/Java.Interop/src/Java.Interop/Java.Interop/JniEnvironment.g.cs:12083
at Java.Interop.JniPeerMembers+JniInstanceMethods.InvokeVirtualVoidMethod (System.String encodedMember, Java.Interop.IJavaPeerable self, Java.Interop.JniArgumentValue* parameters) [0x00068] in /Users/builder/data/lanes/3819/96c7ba6c/source/Java.Interop/src/Java.Interop/Java.Interop/JniPeerMembers.JniInstanceMethods_Invoke.cs:31
at Android.Views.View.Draw (Android.Graphics.Canvas canvas) [0x0002c] in /Users/builder/data/lanes/3819/96c7ba6c/source/monodroid/src/Mono.Android/platforms/android-24/src/generated/Android.Views.View.cs:12837
at Xamarin.Forms.Platform.Android.ScrollViewRenderer.Draw (Android.Graphics.Canvas canvas) [0x0000d] in C:\BuildAgent2\work\ca3766cfc22354a1\Xamarin.Forms.Platform.Android\Renderers\ScrollViewRenderer.cs:99
at Android.Views.View.n_Draw_Landroid_graphics_Canvas_ (System.IntPtr jnienv, System.IntPtr native__this, System.IntPtr native_canvas) [0x00011] in /Users/builder/data/lanes/3819/96c7ba6c/source/monodroid/src/Mono.Android/platforms/android-24/src/generated/Android.Views.View.cs:12825
at at (wrapper dynamic-method) System.Object:75413b68-d1a4-4864-b7a4-6d3fd2662bd8 (intptr,intptr,intptr)
at java.lang.StackOverflowError
at at android.graphics.Paint.getTextRunAdvances(Paint.java:2221)
at at android.text.TextLine.handleText(TextLine.java:815)
at at android.text.TextLine.handleRun(TextLine.java:970)
at at android.text.TextLine.measureRun(TextLine.java:482)
at at android.text.TextLine.measure(TextLine.java:361)
at at android.text.TextLine.metrics(TextLine.java:335)
at at android.text.Layout.getLineExtent(Layout.java:1001)
at at android.text.Layout.drawText(Layout.java:332)
at at android.text.Layout.draw(Layout.java:208)
at at android.text.BoringLayout.draw(BoringLayout.java:403)
at at android.widget.TextView.onDraw(TextView.java:6286)
at at android.view.View.draw(View.java:15312)
at at android.view.View.getDisplayList(View.java:14206)
at at android.view.View.getDisplayList(View.java:14248)
at at android.view.View.draw(View.java:15026)
at at android.view.ViewGroup.drawChild(ViewGroup.java:3307)
at at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3144)
at at android.view.View.getDisplayList(View.java:14201)
at at android.view.View.getDisplayList(View.java:14248)
at at android.view.View.draw(View.java:15026)
at at android.view.ViewGroup.drawChild(ViewGroup.java:3307)
at at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3144)
at at android.view.View.getDisplayList(View.java:14201)
at at android.view.View.getDisplayList(View.java:14248)
at at android.view.View.draw(View.java:15026)
at at android.view.ViewGroup.drawChild(ViewGroup.java:3307)
at at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3144)
at at android.view.View.getDisplayList(View.java:14201)
at at android.view.View.getDisplayList(View.java:14248)
at at android.view.View.draw(View.java:15026)
at at android.view.ViewGroup.drawChild(ViewGroup.java:3307)
at at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3144)
at at android.view.View.getDisplayList(View.java:14201)
at at android.view.View.getDisplayList(View.java:14248)
at at android.view.View.draw(View.java:15026)
at at android.view.ViewGroup.drawChild(ViewGroup.java:3307)
at at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3144)
at at android.view.View.getDisplayList(View.java:14201)
at at android.view.View.getDisplayList(View.java:14248)
at at android.view.View.draw(View.java:15026)
at at android.view.ViewGroup.drawChild(ViewGroup.java:3307)
at at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3144)
at at android.view.View.getDisplayList(View.java:14201)
at at android.view.View.getDisplayList(View.java:14248)
at at android.view.View.draw(View.java:15026)
at at android.view.ViewGroup.drawChild(ViewGroup.java:3307)
at at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3144)
at at android.view.View.getDisplayList(View.java:14201)
at at android.view.View.getDisplayList(View.java:14248)
at at android.view.View.draw(View.java:15026)
at at android.view.ViewGroup.drawChild(ViewGroup.java:3307)
at at android.widget.ListView.drawChild(ListView.java:3403)
at at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3144)
at at android.widget.AbsListView.dispatchDraw(AbsListView.java:2931)
at at android.widget.ListView.dispatchDraw(ListView.java:3398)
at at android.view.View.draw(View.java:15315)
at at android.widget.AbsListView.draw(AbsListView.java:5153)
at at android.view.View.getDisplayList(View.java:14206)
at at android.view.View.getDisplayList(View.java:14248)
at at android.view.View.draw(View.java:15026)
at at android.view.ViewGroup.drawChild(ViewGroup.java:3307)
at at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3151)
at at android.view.View.draw(View.java:15315)
at at android.view.View.getDisplayList(View.java:14206)
at at android.view.View.getDisplayList(View.java:14248)
at at android.view.View.draw(View.java:15026)
at at android.view.ViewGroup.drawChild(ViewGroup.java:3307)
at at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3144)
at at android.view.View.draw(View.java:15315)
at at android.view.View.getDisplayList(View.java:14206)
at at android.view.View.getDisplayList(View.java:14248)
at at android.view.View.draw(View.java:15026)
at at android.view.ViewGroup.drawChild(ViewGroup.java:3307)
at at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3144)
at at android.view.View.draw(View.java:15315)
at at android.view.View.getDisplayList(View.java:14206)
at at android.view.View.getDisplayList(View.java:14248)
at at android.view.View.draw(View.java:15026)
at at android.view.ViewGroup.drawChild(ViewGroup.java:3307)
at at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3144)
at at android.view.View.getDisplayList(View.java:14201)
at at android.view.View.getDisplayList(View.java:14248)
at at android.view.View.draw(View.java:15026)
at at android.view.ViewGroup.drawChild(ViewGroup.java:3307)
at at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3144)
at at android.view.View.draw(View.java:15315)
at at android.widget.FrameLayout.draw(FrameLayout.java:472)
at at android.view.View.getDisplayList(View.java:14206)
at at android.view.View.getDisplayList(View.java:14248)
at at android.view.View.draw(View.java:15026)
at at android.view.ViewGroup.drawChild(ViewGroup.java:3307)
at at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3144)
at at android.view.View.draw(View.java:15315)
at at android.view.View.getDisplayList(View.java:14206)
at at android.view.View.getDisplayList(View.java:14248)
at at android.view.View.draw(View.java:15026)
at at android.view.ViewGroup.drawChild(ViewGroup.java:3307)
at at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3144)
at at android.view.View.getDisplayList(View.java:14201)
at at android.view.View.getDisplayList(View.java:14248)
at at android.view.View.draw(View.java:15026)
at at android.view.ViewGroup.drawChild(ViewGroup.java:3307)
at at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3144)
at at android.view.View.getDisplayList(View.java:14201)
at at android.view.View.getDisplayList(View.java:14248)
at at android.view.View.draw(View.java:15026)
at at android.view.ViewGroup.drawChild(ViewGroup.java:3307)
at at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3144)
at at android.view.View.draw(View.java:15315)
at at android.widget.FrameLayout.draw(FrameLayout.java:472)
at at android.widget.ScrollView.draw(ScrollView.java:2156)
at at md5b60ffeb829f638581ab2bb9b1a7f4f3f.ScrollViewRenderer.n_draw(Native Method)
at at md5b60ffeb829f638581ab2bb9b1a7f4f3f.ScrollViewRenderer.draw(ScrollViewRenderer.java:59)
at at android.view.View.getDisplayList(View.java:14206)
at at android.view.View.getDisplayList(View.java:14248)
at at android.view.View.draw(View.java:15026)
at at android.view.ViewGroup.drawChild(ViewGroup.java:3307)
at at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3151)
at at android.view.View.draw(View.java:15315)
at at android.view.View.getDisplayList(View.java:14206)
at at android.view.View.getDisplayList(View.java:14248)
at at android.view.View.draw(View.java:15026)
at at android.view.ViewGroup.drawChild(ViewGroup.java:3307)
at at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3144)
at at android.view.View.getDisplayList(View.java:14201)
at at android.view.View.getDisplayList(View.java:14248)
at at android.view.View.draw(View.java:15026)
at at android.view.ViewGroup.drawChild(ViewGroup.java:3307)
at at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3144)
at at android.view.View.draw(View.java:15315)
at at android.view.View.getDisplayList(View.java:14206)
at at android.view.View.getDisplayList(View.java:14248)
at at android.view.View.draw(View.java:15026)
at at android.view.ViewGroup.drawChild(ViewGroup.java:3307)
at at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3144)
at at android.view.View.getDisplayList(View.java:14201)
at at android.view.View.getDisplayList(View.java:14248)
at at android.view.View.draw(View.java:15026)
at at android.view.ViewGroup.drawChild(ViewGroup.java:3307)
at at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3144)
at at android.view.View.draw(View.java:15315)
at at android.support.v4.view.ViewPager.draw(ViewPager.java:2336)
at at android.view.View.getDisplayList(View.java:14206)
at at android.view.View.getDisplayList(View.java:14248)
at at android.view.View.draw(View.java:15026)
at at android.view.ViewGroup.drawChild(ViewGroup.java:3307)
at at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3144)
at at android.view.View.getDisplayList(View.java:14201)
at at android.view.View.getDisplayList(View.java:14248)
at at android.view.View.draw(View.java:15026)
at at android.view.ViewGroup.drawChild(ViewGroup.java:3307)
at at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3144)
at at android.view.View.getDisplayList(View.java:14201)
at at android.view.View.getDisplayList(View.java:14248)
at at android.view.View.draw(View.java:15026)
at at android.view.ViewGroup.drawChild(ViewGroup.java:3307)
at at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3144)
at at android.view.View.getDisplayList(View.java:14201)
at at android.view.View.getDisplayList(View.java:14248)
at at android.view.View.draw(View.java:15026)
at at android.view.ViewGroup.drawChild(ViewGroup.java:3307)
at at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3144)
at at android.view.View.getDisplayList(View.java:14201)
at at android.view.View.getDisplayList(View.java:14248)
at at android.view.View.draw(View.java:15026)
at at android.view.ViewGroup.drawChild(ViewGroup.java:3307)
at at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3144)
at at android.view.View.getDisplayList(View.java:14201)
at at android.view.View.getDisplayList(View.java:14248)
at at android.view.View.draw(View.java:15026)
at at android.view.ViewGroup.drawChild(ViewGroup.java:3307)
at at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3144)
at at android.view.View.draw(View.java:15315)
at at android.widget.FrameLayout.draw(FrameLayout.java:472)
at at android.view.View.getDisplayList(View.java:14206)
at at android.view.View.getDisplayList(View.java:14248)
at at android.view.View.draw(View.java:15026)
at at android.view.ViewGroup.drawChild(ViewGroup.java:3307)
at at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3144)
at at android.view.View.getDisplayList(View.java:14201)
at at android.view.View.getDisplayList(View.java:14248)
at at android.view.View.draw(View.java:15026)
at at android.view.ViewGroup.drawChild(ViewGroup.java:3307)
at at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3144)
at at android.view.View.getDisplayList(View.java:14201)
at at android.view.View.getDisplayList(View.java:14248)
at at android.view.View.draw(View.java:15026)
at at android.view.ViewGroup.drawChild(ViewGroup.java:3307)
at at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3144)
at at android.view.View.getDisplayList(View.java:14201)
at at android.view.View.getDisplayList(View.java:14248)
at at android.view.View.draw(View.java:15026)
at at android.view.ViewGroup.drawChild(ViewGroup.java:3307)
at at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3144)
at at android.view.View.draw(View.java:15315)
at at android.widget.FrameLayout.draw(FrameLayout.java:472)
at at com.android.internal.policy.impl.PhoneWindow$DecorView.draw(PhoneWindow.java:2540)
at at android.view.View.getDisplayList(View.java:14206)
at at android.view.View.getDisplayList(View.java:14248)
at at android.view.HardwareRenderer$GlRenderer.buildDisplayList(HardwareRenderer.java:1570)
at at android.view.HardwareRenderer$GlRenderer.draw(HardwareRenderer.java:1449)
at at android.view.ViewRootImpl.draw(ViewRootImpl.java:2667)
at at android.view.ViewRootImpl.performDraw(ViewRootImpl.java:2533)
at at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2107)
at at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1200)
at at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6401)
at at android.view.Choreographer$CallbackRecord.run(Choreographer.java:803)
at at android.view.Choreographer.doCallbacks(Choreographer.java:603)
at at android.view.Choreographer.doFrame(Choreographer.java:573)
at at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:789)
at at android.os.Handler.handleCallback(Handler.java:733)
at at android.os.Handler.dispatchMessage(Handler.java:95)
at at android.os.Looper.loop(Looper.java:157)
at at android.app.ActivityThread.main(ActivityThread.java:5335)
at at java.lang.reflect.Method.invokeNative(Native Method)
at at java.lang.reflect.Method.invoke(Method.java:515)
at at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1265)
at at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1081)
at at dalvik.system.NativeStart.main(Native Method)
Googleでいくつかの研究が、私はこの同じ問題https://forums.xamarin.com/discussion/48144/stackoverflowerror-on-androidが見つかりましたが、回避策は、私の場合には適用できなかった後：iOS上で正常に動作しなくAndroid上で、私はこの例外を受けています私のitemtemplateの行番号）。 しかし、問題の原因はItemTemplateの要素の数であるとは確信していません。同じContentPageがAndroidのMasterDetailPageで正常に動作するためです。
TabbedPageを使用できない場合は、コンポーネント/ Xamarin.FormsでTabBarを作成するために使用できるサンプル。
ご協力いただきありがとうございます。よろしくです。 よろしくお願いします。 Olivier。
テスト対象のデバイス/シミュレータは何ですか？あなたのコードをどこかに置くことができるので、私たちは再現を試みることができますか？ –
@YuriSあなたの答えをありがとう。私はNavigationPage内にTabbedPageを作成したときに表示されるという問題を発見しました。私はTabbedPageを含むナビゲーションページを作成することはできないと思う。これはiOSでは動作しますが、Androidでは動作しません。私のTabbedPageの各子ページに対してNavigationPageを作成することをお勧めします。 Thx – user1317878
私はこの同じエラーを抱えていて、リストビューのitemtemplateのレイアウト要素の数を減らして修正しました。私はあなたのレイアウトをより効率的にするために、rowspanとcolumnspanでグリッドを使うことをお勧めします。 –