When using Expandablelistview, report the following error. Online search found that the original is in the Commonnumberqueryadapter Getgroupview () method returned is null, attention to detail Oh!!!
12-19 17:32:41.822:e/androidruntime (1894): FATAL Exception:main
12-19 17:32:41.822:e/androidruntime (1894): Java.lang.NullPointerException
12-19 17:32:41.822:e/androidruntime (1894): at Android.widget.AbsListView.obtainView (abslistview.java:2269)
12-19 17:32:41.822:e/androidruntime (1894): at Android.widget.ListView.makeAndAddView (listview.java:1769)
12-19 17:32:41.822:e/androidruntime (1894): at Android.widget.ListView.fillDown (listview.java:672)
12-19 17:32:41.822:e/androidruntime (1894): at Android.widget.ListView.fillSpecific (listview.java:1330)
12-19 17:32:41.822:e/androidruntime (1894): at Android.widget.ListView.layoutChildren (listview.java:1600)
12-19 17:32:41.822:e/androidruntime (1894): at Android.widget.AbsListView.onLayout (abslistview.java:2102)
12-19 17:32:41.822:e/androidruntime (1894): at Android.view.View.layout (view.java:13754)
12-19 17:32:41.822:e/androidruntime (1894): at Android.view.ViewGroup.layout (viewgroup.java:4362)
12-19 17:32:41.822:e/androidruntime (1894): at Android.widget.LinearLayout.setChildFrame (linearlayout.java:1649)
12-19 17:32:41.822:e/androidruntime (1894): at Android.widget.LinearLayout.layoutVertical (linearlayout.java:1507)
12-19 17:32:41.822:e/androidruntime (1894): at Android.widget.LinearLayout.onLayout (linearlayout.java:1420)
12-19 17:32:41.822:e/androidruntime (1894): at Android.view.View.layout (view.java:13754)
12-19 17:32:41.822:e/androidruntime (1894): at Android.view.ViewGroup.layout (viewgroup.java:4362)
12-19 17:32:41.822:e/androidruntime (1894): at Android.widget.FrameLayout.onLayout (framelayout.java:448)
12-19 17:32:41.822:e/androidruntime (1894): at Android.view.View.layout (view.java:13754)
12-19 17:32:41.822:e/androidruntime (1894): at Android.view.ViewGroup.layout (viewgroup.java:4362)
12-19 17:32:41.822:e/androidruntime (1894): at Android.widget.LinearLayout.setChildFrame (linearlayout.java:1649)
12-19 17:32:41.822:e/androidruntime (1894): at Android.widget.LinearLayout.layoutVertical (linearlayout.java:1507)
12-19 17:32:41.822:e/androidruntime (1894): at Android.widget.LinearLayout.onLayout (linearlayout.java:1420)
12-19 17:32:41.822:e/androidruntime (1894): at Android.view.View.layout (view.java:13754)
12-19 17:32:41.822:e/androidruntime (1894): at Android.view.ViewGroup.layout (viewgroup.java:4362)
12-19 17:32:41.822:e/androidruntime (1894): at Android.widget.FrameLayout.onLayout (framelayout.java:448)
12-19 17:32:41.822:e/androidruntime (1894): at Android.view.View.layout (view.java:13754)
12-19 17:32:41.822:e/androidruntime (1894): at Android.view.ViewGroup.layout (viewgroup.java:4362)
12-19 17:32:41.822:e/androidruntime (1894): at Android.view.ViewRootImpl.performLayout (viewrootimpl.java:1866)
12-19 17:32:41.822:e/androidruntime (1894): at Android.view.ViewRootImpl.performTraversals (viewrootimpl.java:1687)
12-19 17:32:41.822:e/androidruntime (1894): at Android.view.ViewRootImpl.doTraversal (viewrootimpl.java:998)
12-19 17:32:41.822:e/androidruntime (1894): At Android.view.viewrootimpl$traversalrunnable.run (ViewRootImpl.java : 4212)
12-19 17:32:41.822:e/androidruntime (1894): At Android.view.choreographer$callbackrecord.run (Choreographer.java : 725)
12-19 17:32:41.822:e/androidruntime (1894): at Android.view.Choreographer.doCallbacks (choreographer.java:555)
12-19 17:32:41.822:e/androidruntime (1894): at Android.view.Choreographer.doFrame (choreographer.java:525)
12-19 17:32:41.822:e/androidruntime (1894): At Android.view.choreographer$framedisplayeventreceiver.run ( choreographer.java:711)
12-19 17:32:41.822:e/androidruntime (1894): at Android.os.Handler.handleCallback (handler.java:615)
12-19 17:32:41.822:e/androidruntime (1894): at Android.os.Handler.dispatchMessage (handler.java:92)
12-19 17:32:41.822:e/androidruntime (1894): at Android.os.Looper.loop (looper.java:137)
12-19 17:32:41.822:e/androidruntime (1894): at Android.app.ActivityThread.main (activitythread.java:4745)
12-19 17:32:41.822:e/androidruntime (1894): At Java.lang.reflect.Method.invokeNative (Native Method)
12-19 17:32:41.822:e/androidruntime (1894): at Java.lang.reflect.Method.invoke (method.java:511)
12-19 17:32:41.822:e/androidruntime (1894): At Com.android.internal.os.zygoteinit$methodandargscaller.run ( zygoteinit.java:786)
12-19 17:32:41.822:e/androidruntime (1894): at Com.android.internal.os.ZygoteInit.main (zygoteinit.java:553)
12-19 17:32:41.822:e/androidruntime (1894): At Dalvik.system.NativeStart.main (Native Method) |
NullPointerException at Android.widget.AbsListView.obtainView at Android.widget.ListView.makeAndAddView
