您好,我在Dialog里使用BubbleSeekBar 时 出现如下异常

[ZHDelete]

红米NOTE 3 MIUI 8.5 Android 6.0.1

E/CrashReport: java.lang.NullPointerException: Attempt to invoke virtual method 'void com.xw.repo.BubbleSeekBar$BubbleView.measure(int, int)' on a null object reference at com.xw.repo.BubbleSeekBar.onMeasure(BubbleSeekBar.java:372) at android.view.View.measure(View.java:18811) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5952) at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1465) at android.widget.LinearLayout.measureHorizontal(LinearLayout.java:1112) at android.widget.LinearLayout.onMeasure(LinearLayout.java:632) at android.view.View.measure(View.java:18811) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5952) 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:18811) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5952) 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:18811) at android.widget.RelativeLayout.measureChildHorizontal(RelativeLayout.java:716) at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:462) at android.view.View.measure(View.java:18811) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5952) at android.widget.FrameLayout.onMeasure(FrameLayout.java:194) at android.view.View.measure(View.java:18811) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5952) 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:18811) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5952) 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:18811) at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:2127) at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1243) at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1479) at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1134) at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6050) at android.view.Choreographer$CallbackRecord.run(Choreographer.java:860) at android.view.Choreographer.doCallbacks(Choreographer.java:672) at android.view.Choreographer.doFrame(Choreographer.java:608) at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:846) at android.os.Handler.handleCallback(Handler.java:742) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:154) at android.app.ActivityThread.main(ActivityThread.java:5527) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:739) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:629)

[woxingxiao]

不够具体，我无法定位问题。请参照README.md中“怎样提出有效的issue”，并告知使用的库版本。