10-07 21:05:32.704 22810-22810/com.seedxyx.noteinfingers E/AndroidRuntime﹕ FATAL EXCEPTION: main
java.lang.NullPointerException
at android.view.ViewGroup.dispatchVisibilityChanged(ViewGroup.java:1029)
at android.view.ViewGroup.dispatchVisibilityChanged(ViewGroup.java:1029)
at android.view.ViewGroup.dispatchVisibilityChanged(ViewGroup.java:1029)
at android.view.ViewGroup.dispatchVisibilityChanged(ViewGroup.java:1029)
at android.view.ViewGroup.dispatchVisibilityChanged(ViewGroup.java:1029)
at android.view.ViewGroup.dispatchVisibilityChanged(ViewGroup.java:1029)
at android.view.ViewGroup.dispatchVisibilityChanged(ViewGroup.java:1029)
at android.view.View.setFlags(View.java:8370)
at android.view.View.setVisibility(View.java:5512)
at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:2638)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2097)
at android.app.ActivityThread.access$600(ActivityThread.java:133)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1203)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4794)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:789)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:556)
at dalvik.system.NativeStart.main(Native Method)
app突然就刚进去就崩溃了,这是个什么错误?
空指针异常,有些值或组件未获取到。