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                        /Android猜歌游戏是这样炼成的

模拟器无法运行

java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.Object android.content.Context.getSystemService(java.lang.String)' on a null object reference

at com.sqnc.guessmusic.util.Util.getView(Util.java:12)

at com.sqnc.guessmusic.myui.MyGridView$MyGridAdapter.getView(MyGridView.java:67)

at android.widget.AbsListView.obtainView(AbsListView.java:2346)

at android.widget.GridView.onMeasure(GridView.java:1065)

at android.view.View.measure(View.java:18788)

at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951)

at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1465)

at android.widget.LinearLayout.measureVertical(LinearLayout.java:748)

at android.widget.LinearLayout.onMeasure(LinearLayout.java:630)

at android.view.View.measure(View.java:18788)

at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951)

at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1465)

at android.widget.LinearLayout.measureVertical(LinearLayout.java:748)

at android.widget.LinearLayout.onMeasure(LinearLayout.java:630)

at android.view.View.measure(View.java:18788)

at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951)

at android.widget.FrameLayout.onMeasure(FrameLayout.java:194)

at android.view.View.measure(View.java:18788)

at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951)

at android.widget.FrameLayout.onMeasure(FrameLayout.java:194)

at android.view.View.measure(View.java:18788)

at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951)

at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1465)

at android.widget.LinearLayout.measureVertical(LinearLayout.java:748)

at android.widget.LinearLayout.onMeasure(LinearLayout.java:630)

at android.view.View.measure(View.java:18788)

at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951)

at android.widget.FrameLayout.onMeasure(FrameLayout.java:194)

at com.android.internal.policy.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2643)

at android.view.View.measure(View.java:18788)

at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:2100)

at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1216)

at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1452)

at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1107)

at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6013)

at android.view.Choreographer$CallbackRecord.run(Choreographer.java:858)

at android.view.Choreographer.doCallbacks(Choreographer.java:670)

at android.view.Choreographer.doFrame(Choreographer.java:606)

at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:844)

at android.os.Handler.handleCallback(Handler.java:739)

at android.os.Handler.dispatchMessage(Handler.java:95)

at android.os.Looper.loop(Looper.java:148)

at android.app.ActivityThread.main(ActivityThread.java:5417)

at java.lang.reflect.Method.invoke(Native Method)

at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)

at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)

慕粉3673432

2016-08-16

源自：Android猜歌游戏是这样炼成的 4-5

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1 回答

冬风醉
2016-09-04

空指针异常，Util类下的getView方法下的getSystemService没有获取到

0 回复有任何疑惑可以回复我~

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