java.lang.NullPointerException

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  • java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.ImageView.setBackground(android.graphics.drawable.Drawable)' on a null object reference at star.yx.tabview.ProfileFragment.updatePlayStatus(ProfileFragment.java:370) at star.yx.tabview.ProfileFragment.setIFace(ProfileFragment.java:205) at star.yx.tabview.ProfileFragment.onCreateView(ProfileFragment.java:158) at android.support.v4.app.Fragment.performCreateView(Fragment.java:2184) at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1298) at android.support.v4.app.FragmentManagerImpl.moveFragmentsToInvisible(FragmentManager.java:2323) at android.support.v4.app.FragmentManagerImpl.executeOpsTogether(FragmentManager.java:2136) at android.support.v4.app.FragmentManagerImpl.optimizeAndExecuteOps(FragmentManager.java:2092) at android.support.v4.app.FragmentManagerImpl.execSingleAction(FragmentManager.java:1969) at android.support.v4.app.BackStackRecord.commitNowAllowingStateLoss(BackStackRecord.java:620) at android.support.v4.app.FragmentPagerAdapter.finishUpdate(FragmentPagerAdapter.java:143) at android.support.v4.view.ViewPager.populate(ViewPager.java:1268) at android.support.v4.view.ViewPager.populate(ViewPager.java:1116) at android.support.v4.view.ViewPager.onMeasure(ViewPager.java:1642) at android.view.View.measure(View.java:18596) at android.widget.RelativeLayout.measureChildHorizontal(RelativeLayout.java:728) at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:464) at android.view.View.measure(View.java:18596) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5827) at android.widget.FrameLayout.onMeasure(FrameLayout.java:430) at android.support.v7.widget.ContentFrameLayout.onMeasure(ContentFrameLayout.java:139) at android.view.View.measure(View.java:18596) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5827) at android.support.v7.widget.ActionBarOverlayLayout.onMeasure(ActionBarOverlayLayout.java:393) at android.view.View.measure(View.java:18596) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5827) at android.widget.FrameLayout.onMeasure(FrameLayout.java:430) at android.view.View.measure(View.java:18596) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5827) at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1435) at android.widget.LinearLayout.measureVertical(LinearLayout.java:721) at android.widget.LinearLayout.onMeasure(LinearLayout.java:612) at android.view.View.measure(View.java:18596) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5827) at android.widget.FrameLayout.onMeasure(FrameLayout.java:430) at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2897) at android.view.View.measure(View.java:18596) at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:2248) at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1306) at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1548) at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1191) at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6642) at android.view.Choreographer$CallbackRecord.run(Choreographer.java:777) at android.view.Choreographer.doCallbacks(Choreographer.java:590) at android.view.Choreographer.doFrame(Choreographer.java:560) at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:763) at android.os.Handler.handleCallback(Handler.java:739) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:145) at android.app.ActivityThread.main(ActivityThread.java:5951) at java.lang.reflect.Method.invoke(Native Method) at java.lang.reflect.Method.invoke(Method.java:372) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1400)
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