NullPointerException

[lingling-fan]

//package name: com.jmartin.temaki //version: 1.51 java.lang.NullPointerException at com.jmartin.temaki.MainDrawerActivity.hideKeyboard(MainDrawerActivity.java:488) at com.jmartin.temaki.MainDrawerActivity.access$200(MainDrawerActivity.java:43) at com.jmartin.temaki.MainDrawerActivity$1.onDrawerOpened(MainDrawerActivity.java:129) at android.support.v4.widget.DrawerLayout.dispatchOnDrawerOpened(DrawerLayout.java:488) at android.support.v4.widget.DrawerLayout.updateDrawerState(DrawerLayout.java:459) at android.support.v4.widget.DrawerLayout$ViewDragCallback.onViewDragStateChanged(DrawerLayout.java:1348) at android.support.v4.widget.ViewDragHelper.setDragState(ViewDragHelper.java:866) at android.support.v4.widget.ViewDragHelper$2.run(ViewDragHelper.java:335) at android.os.Handler.handleCallback(Handler.java:730) at android.os.Handler.dispatchMessage(Handler.java:92) at android.os.Looper.loop(Looper.java:137) at android.app.ActivityThread.main(ActivityThread.java:5103) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:525) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) at dalvik.system.NativeStart.main(Native Method)