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当用户点击一个按钮时,调用Acitiviy.ShowDialog(int)时出现NullReferenceException异常。 Android 2.1中发生异常,而Android 4.2中则不会。这里是Stacktrace:在Android 2上调用ShowDialog时发生NullReferenceException异常
UNHANDLED EXCEPTION: System.NullReferenceException: Object reference not set to an instance of an object
at (wrapper delegate-invoke) <Module>.invoke_void__this___intptr_intptr_intptr_JValue[] (intptr,intptr,intptr,Android.Runtime.JValue[]) <0x000b3>
at Android.Runtime.JNIEnv.CallVoidMethod (intptr,intptr,Android.Runtime.JValue[]) <0x00053>
at Android.App.Activity.ShowDialog (int) <0x0011f>
at MyApp.AndroidApp.InvoiceActivity.ShowScheduleDateDialog (object,System.EventArgs) <0x0003b>
at Android.Views.View/IOnClickListenerImplementor.OnClick (Android.Views.View) <0x00057>
at Android.Views.View/IOnClickListenerInvoker.n_OnClick_Landroid_view_View_ (intptr,intptr,intptr) <0x00063>
at (wrapper dynamic-method) object.be0dcca3-9ca4-47b4-a6a4-f691d34675f1 (intptr,intptr,intptr) <0x00043>
任何想法?
你应该发布代码本身,从这我们将无法帮助你。 – Gilson 2013-05-09 17:47:52