跟jiecaoVideoPlayer 的视频播放全屏冲突错误如下：
FATAL EXCEPTION: main
Process: com.qtbigdata.qthao, PID: 15373
java.lang.NullPointerException: Attempt to invoke virtual method 'android.support.v7.app.ActionBar android.support.v7.app.AppCompatActivity.getSupportActionBar()' on a null object reference
at fm.jiecao.jcvideoplayer_lib.JCVideoPlayer.hideSupportActionBar(JCVideoPlayer.java:872)
at fm.jiecao.jcvideoplayer_lib.JCVideoPlayer.startWindowFullscreen(JCVideoPlayer.java:637)
at fm.jiecao.jcvideoplayer_lib.JCVideoPlayer.onClick(JCVideoPlayer.java:190)
at fm.jiecao.jcvideoplayer_lib.JCVideoPlayerStandard.onClick(JCVideoPlayerStandard.java:164)
at android.view.View.performClick(View.java:5646)
at android.view.View$PerformClick.run(View.java:22450)
at android.os.Handler.handleCallback(Handler.java:755)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:156)
at android.app.ActivityThread.main(ActivityThread.java:6524)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:941)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:831)
跟jiecaoVideoPlayer 的视频播放全屏冲突错误如下： FATAL EXCEPTION: main Process: com.qtbigdata.qthao, PID: 15373 java.lang.NullPointerException: Attempt to invoke virtual method 'android.support.v7.app.ActionBar android.support.v7.app.AppCompatActivity.getSupportActionBar()' on a null object reference at fm.jiecao.jcvideoplayer_lib.JCVideoPlayer.hideSupportActionBar(JCVideoPlayer.java:872) at fm.jiecao.jcvideoplayer_lib.JCVideoPlayer.startWindowFullscreen(JCVideoPlayer.java:637) at fm.jiecao.jcvideoplayer_lib.JCVideoPlayer.onClick(JCVideoPlayer.java:190) at fm.jiecao.jcvideoplayer_lib.JCVideoPlayerStandard.onClick(JCVideoPlayerStandard.java:164) at android.view.View.performClick(View.java:5646) at android.view.View$PerformClick.run(View.java:22450) at android.os.Handler.handleCallback(Handler.java:755) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:156) at android.app.ActivityThread.main(ActivityThread.java:6524) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:941) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:831)