Caused by: java.lang.NullPointerException: Attempt to write to field 'int android.app.Fragment.mNextAnim' on a null object reference
原因fragment必须先add(),才能remove(),故remove前先做判空操作
参考:http://www.cnblogs.com/hixin/p/4427276.html
原因fragment必须先add(),才能remove(),故remove前先做判空操作
参考:http://www.cnblogs.com/hixin/p/4427276.html