3
在XAMARIN,与MVVM方法有时当用户穿越回我们得到一个错误的列表视图,XAMARIN信息:System.ArgumentException“jobject”一定不能IntPtr.Zero
System.ArgumentException: 'jobject' must not be IntPtr.Zero.
Parameter name: jobject
at at Android.Runtime.JNIEnv.CallNonvirtualIntMethod (intptr,intptr,intptr) <IL 0x0001f, 0x000d8>
at at Android.Views.View.get_Visibility() <IL 0x00075, 0x002a3>
at at Xamarin.Forms.Platform.Android.VisualElementTracker.UpdateIsVisible() <IL 0x00021, 0x00127>
at at Xamarin.Forms.Platform.Android.VisualElementTracker.HandlePropertyChanged (object,System.ComponentModel.PropertyChangedEventArgs) <IL 0x002b3, 0x010d3>
at at (wrapper delegate-invoke) <Module>.invoke_void_object_PropertyChangedEventArgs (object,System.ComponentModel.PropertyChangedEventArgs) <IL 0x00044, 0x0009f>
at at Xamarin.Forms.BindableObject.OnPropertyChanged (string) <IL 0x00012, 0x000c7>
at at Xamarin.Forms.BindableObject.SetValueActual (Xamarin.Forms.BindableProperty,object,bool,bool,bool) <IL 0x000a3, 0x004f3>
at at Xamarin.Forms.BindableObject.SetValueCore (Xamarin.Forms.BindableProperty,object,bool,bool,bool) <IL 0x00213, 0x00aeb>
at at Xamarin.Forms.BindingExpression.ApplyCore (object,Xamarin.Forms.BindableObject,Xamarin.Forms.BindableProperty,bool) <IL 0x00206, 0x01287>
at at Xamarin.Forms.BindingExpression.Apply (bool) <IL 0x00041, 0x0018b>
at at Xamarin.Forms.BindingExpression/BindingExpressionPart.<PropertyChanged>b__12() <IL 0x00007, 0x00053>
at at Java.Lang.Thread/RunnableImplementor.Run() <IL 0x00011, 0x00097>
at at Java.Lang.IRunnableInvoker.n_Run (intptr,intptr) <IL 0x0000a, 0x000a3>
at at (wrapper dynamic-method) object.77d235ff-7394-41cf-b895-17e2737816c1 (intptr,intptr) <IL 0x00011, 0x0003b>
你可以发布使用get_Visibility的代码吗? – 2014-10-30 16:44:03