小编can*_*mak的帖子

我正在研究照片应用程序,我想在我的项目中实现cirlcle cropper,但是我的片段和裁剪器类有问题.当我选择图片并按下裁剪按钮并在转动片段后我发出此错误:

06-04 02:09:34.595 21914-21914/com.stamplessapp E/AndroidRuntime: FATAL EXCEPTION: main
                                                              Process: com.stamplessapp, PID: 21914
                                                              java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=131094, result=-1, data=Intent { dat=file:///storage/emulated/0/Pictures/Stampless/IMG_20160604_020934.jpg }} to activity {com.stamplessapp/com.stamplessapp.MainActivity}: java.lang.NullPointerException: Attempt to invoke interface method 'boolean android.database.Cursor.moveToFirst()' on a null object reference
                                                                  at android.app.ActivityThread.deliverResults(ActivityThread.java:4058)
                                                                  at android.app.ActivityThread.handleSendResult(ActivityThread.java:4101)
                                                                  at android.app.ActivityThread.access$1400(ActivityThread.java:177)
                                                                  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1497)
                                                                  at android.os.Handler.dispatchMessage(Handler.java:102)
                                                                  at android.os.Looper.loop(Looper.java:145)
                                                                  at android.app.ActivityThread.main(ActivityThread.java:5942)
                                                                  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)
                                                                  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1195)
                                                               Caused by: java.lang.NullPointerException: Attempt to invoke interface method 'boolean android.database.Cursor.moveToFirst()' on a null object reference
                                                                  at com.stamplessapp.ProfileFragment.onActivityResult(ProfileFragment.java:582) …