1123248526

大神我使用这个轮播图会导致项目崩溃是什么原因NullPointerException异常

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Process: com.haoontech.jiuducaijing, PID: 12847 java.lang.NullPointerException: Attempt to invoke virtual method 'android.support.v4.view.ViewPager com.jude.rollviewpager.RollPagerView.getViewPager()' on a null object reference at com.jude.rollviewpager.RollPagerView$TimeTaskHandler.handleMessage(RollPagerView.java:146) at android.os.Handler.dispatchMessage(Handler.java:111) at android.os.Looper.loop(Looper.java:194) at android.app.ActivityThread.main(ActivityThread.java:5682) at java.lang.reflect.Method.invoke(Native Method) at java.lang.reflect.Method.invoke(Method.java:372)...