発生し続ける nullpointerexption を見つけるのに問題があります。log cat には「caused by」タグが表示されないため、実際の問題が何であるかを突き止めるのが難しくなっています。問題が何であるかを見つけるために誰かが私を導くことができれば、それは素晴らしいことです. デバッガーも実行しようとしましたが、提供されたエラーが発生しましたが、どうすればよいかわかりません。以下は、私が取得し続けるエラーメッセージです。必要に応じて、コードを投稿します。
デバッガ：
Thread [<1> main] (Suspended (exception NullPointerException))
<VM does not provide monitor information>
Choreographer.doCallbacks(int, long) line: 565
Choreographer.doFrame(long, int) line: 532
Choreographer$FrameDisplayEventReceiver.run() line: 735
Handler.handleCallback(Message) line: 725
Choreographer$FrameHandler(Handler).dispatchMessage(Message) line: 92
Looper.loop() line: 137
ActivityThread.main(String[]) line: 5329
Method.invokeNative(Object, Object[], Class, Class[], Class, int, boolean) line: not available [native method]
Method.invoke(Object, Object...) line: 511
ZygoteInit$MethodAndArgsCaller.run() line: 1102
ZygoteInit.main(String[]) line: 869
NativeStart.main(String[]) line: not available [native method]
ログ猫エラー:
10-09 13:14:35.675: D/dalvikvm(12528): GC_CONCURRENT freed 825K, 9% free 35986K/39424K, paused 3ms+6ms, total 26ms
10-09 13:14:35.675: D/dalvikvm(12528): WAIT_FOR_CONCURRENT_GC blocked 2ms
10-09 13:14:35.705: I/endeffect(12528): AbsListView.onMeasure(), getWidth()=1080, getHeight()=1806, this=android.widget.ExpandableListView{43a168c0 VFED.VC. .F....ID 0,0-1080,1806 #7f060023 app:id/exp_list_view_deals_events}
10-09 13:14:35.705: D/AndroidRuntime(12528): Shutting down VM
10-09 13:14:35.705: W/dalvikvm(12528): threadid=1: thread exiting with uncaught exception (group=0x41467ac8)
10-09 13:14:35.716: E/AndroidRuntime(12528): FATAL EXCEPTION: main
10-09 13:14:35.716: E/AndroidRuntime(12528): java.lang.NullPointerException
10-09 13:14:35.716: E/AndroidRuntime(12528): at android.widget.AbsListView.obtainView(AbsListView.java:2615)
10-09 13:14:35.716: E/AndroidRuntime(12528): at android.widget.ListView.measureHeightOfChildren(ListView.java:1253)
10-09 13:14:35.716: E/AndroidRuntime(12528): at android.widget.ListView.onMeasure(ListView.java:1165)
10-09 13:14:35.716: E/AndroidRuntime(12528): at android.view.View.measure(View.java:16059)
10-09 13:14:35.716: E/AndroidRuntime(12528): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4923)
10-09 13:14:35.716: E/AndroidRuntime(12528): at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1410)
10-09 13:14:35.716: E/AndroidRuntime(12528): at android.widget.LinearLayout.measureVertical(LinearLayout.java:695)
10-09 13:14:35.716: E/AndroidRuntime(12528): at android.widget.LinearLayout.onMeasure(LinearLayout.java:588)
10-09 13:14:35.716: E/AndroidRuntime(12528): at android.view.View.measure(View.java:16059)
10-09 13:14:35.716: E/AndroidRuntime(12528): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4923)
10-09 13:14:35.716: E/AndroidRuntime(12528): at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1410)
10-09 13:14:35.716: E/AndroidRuntime(12528): at android.widget.LinearLayout.measureVertical(LinearLayout.java:695)
10-09 13:14:35.716: E/AndroidRuntime(12528): at android.widget.LinearLayout.onMeasure(LinearLayout.java:588)
10-09 13:14:35.716: E/AndroidRuntime(12528): at android.view.View.measure(View.java:16059)
10-09 13:14:35.716: E/AndroidRuntime(12528): at android.widget.RelativeLayout.measureChildHorizontal(RelativeLayout.java:681)
10-09 13:14:35.716: E/AndroidRuntime(12528): at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:461)
10-09 13:14:35.716: E/AndroidRuntime(12528): at android.view.View.measure(View.java:16059)
10-09 13:14:35.716: E/AndroidRuntime(12528): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4923)
10-09 13:14:35.716: E/AndroidRuntime(12528): at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1410)
10-09 13:14:35.716: E/AndroidRuntime(12528): at android.widget.LinearLayout.measureVertical(LinearLayout.java:695)
10-09 13:14:35.716: E/AndroidRuntime(12528): at android.widget.LinearLayout.onMeasure(LinearLayout.java:588)
10-09 13:14:35.716: E/AndroidRuntime(12528): at android.view.View.measure(View.java:16059)
10-09 13:14:35.716: E/AndroidRuntime(12528): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4923)
10-09 13:14:35.716: E/AndroidRuntime(12528): at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
10-09 13:14:35.716: E/AndroidRuntime(12528): at android.view.View.measure(View.java:16059)
10-09 13:14:35.716: E/AndroidRuntime(12528): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4923)
10-09 13:14:35.716: E/AndroidRuntime(12528): at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1410)
10-09 13:14:35.716: E/AndroidRuntime(12528): at android.widget.LinearLayout.measureVertical(LinearLayout.java:695)
10-09 13:14:35.716: E/AndroidRuntime(12528): at android.widget.LinearLayout.onMeasure(LinearLayout.java:588)
10-09 13:14:35.716: E/AndroidRuntime(12528): at android.view.View.measure(View.java:16059)
10-09 13:14:35.716: E/AndroidRuntime(12528): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4923)
10-09 13:14:35.716: E/AndroidRuntime(12528): at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
10-09 13:14:35.716: E/AndroidRuntime(12528): at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2414)
10-09 13:14:35.716: E/AndroidRuntime(12528): at android.view.View.measure(View.java:16059)
10-09 13:14:35.716: E/AndroidRuntime(12528): at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:2133)
10-09 13:14:35.716: E/AndroidRuntime(12528): at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1286)
10-09 13:14:35.716: E/AndroidRuntime(12528): at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1497)
10-09 13:14:35.716: E/AndroidRuntime(12528): at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1183)
10-09 13:14:35.716: E/AndroidRuntime(12528): at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:4863)
10-09 13:14:35.716: E/AndroidRuntime(12528): at android.view.Choreographer$CallbackRecord.run(Choreographer.java:749)
10-09 13:14:35.716: E/AndroidRuntime(12528): at android.view.Choreographer.doCallbacks(Choreographer.java:562)
10-09 13:14:35.716: E/AndroidRuntime(12528): at android.view.Choreographer.doFrame(Choreographer.java:532)
10-09 13:14:35.716: E/AndroidRuntime(12528): at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:735)
10-09 13:14:35.716: E/AndroidRuntime(12528): at android.os.Handler.handleCallback(Handler.java:725)
10-09 13:14:35.716: E/AndroidRuntime(12528): at android.os.Handler.dispatchMessage(Handler.java:92)
10-09 13:14:35.716: E/AndroidRuntime(12528): at android.os.Looper.loop(Looper.java:137)
10-09 13:14:35.716: E/AndroidRuntime(12528): at android.app.ActivityThread.main(ActivityThread.java:5329)
10-09 13:14:35.716: E/AndroidRuntime(12528): at java.lang.reflect.Method.invokeNative(Native Method)
10-09 13:14:35.716: E/AndroidRuntime(12528): at java.lang.reflect.Method.invoke(Method.java:511)
10-09 13:14:35.716: E/AndroidRuntime(12528): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1102)
10-09 13:14:35.716: E/AndroidRuntime(12528): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:869)
10-09 13:14:35.716: E/AndroidRuntime(12528): at dalvik.system.NativeStart.main(Native Method)