App crashes on Android 5.0.1

[kristiyandobrev]

My ionic app recently started crashing whenever I select an image from the gallery.

Here is the console output:

08-23 12:24:05.500 7287-7287/com.test.timereg E/AndroidRuntime: FATAL EXCEPTION: main
                    Process: com.test.timereg, PID: 7287
                    java.lang.RuntimeException: Unable to resume activity {com.test.timereg/com.test.timereg.MainActivity}: java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=0, result=-1, data=Intent { (has extras) }} to activity {com.test.timereg/com.test.timereg.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void org.apache.cordova.CallbackContext.success(org.json.JSONArray)' on a null object reference
                        at android.app.ActivityThread.performResumeActivity(ActivityThread.java:3192)
                        at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:3223)
                        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2471)
                        at android.app.ActivityThread.access$1200(ActivityThread.java:152)
                        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1341)
                        at android.os.Handler.dispatchMessage(Handler.java:102)
                        at android.os.Looper.loop(Looper.java:135)
                        at android.app.ActivityThread.main(ActivityThread.java:5538)
                        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:960)
                        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)
                    Caused by: java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=0, result=-1, data=Intent { (has extras) }} to activity {com.test.timereg/com.test.timereg.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void org.apache.cordova.CallbackContext.success(org.json.JSONArray)' on a null object reference
                        at android.app.ActivityThread.deliverResults(ActivityThread.java:3790)
                        at android.app.ActivityThread.performResumeActivity(ActivityThread.java:3164)
                        at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:3223) 
                        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2471) 
                        at android.app.ActivityThread.access$1200(ActivityThread.java:152) 
                        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1341) 
                        at android.os.Handler.dispatchMessage(Handler.java:102) 
                        at android.os.Looper.loop(Looper.java:135) 
                        at android.app.ActivityThread.main(ActivityThread.java:5538) 
                        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:960) 
                        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755) 
                    Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'void org.apache.cordova.CallbackContext.success(org.json.JSONArray)' on a null object reference
                        at com.synconset.ImagePicker.onActivityResult(ImagePicker.java:61)
                        at org.apache.cordova.CordovaInterfaceImpl.onActivityResult(CordovaInterfaceImpl.java:153)
                        at org.apache.cordova.CordovaActivity.onActivityResult(CordovaActivity.java:348)
                        at android.app.Activity.dispatchActivityResult(Activity.java:6238)
                        at android.app.ActivityThread.deliverResults(ActivityThread.java:3786)
                        at android.app.ActivityThread.performResumeActivity(ActivityThread.java:3164) 
                        at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:3223) 
                        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2471) 
                        at android.app.ActivityThread.access$1200(ActivityThread.java:152) 
                        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1341) 
                        at android.os.Handler.dispatchMessage(Handler.java:102) 
                        at android.os.Looper.loop(Looper.java:135) 
                        at android.app.ActivityThread.main(ActivityThread.java:5538) 
                        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:960) 
                        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755) 
08-23 12:24:05.560 7287-7287/com.test.timereg I/Process: Sending signal. PID: 7287 SIG: 9

[danielgolub]

I think it has to do with permissions.
Because when I manually enable permission to storage on the phone settings, the app doesn't crash.
Any solution?

[kristiyandobrev]

Yes, if Developer Options->Don't keep activities is enabled it will eliminate any activity when leave them. In the case of the Image Picker it will restart the activity. To solve that issue simply disable the Developer Options->Don't keep activities option.

[kuwabarahiroshi]

@kristiyandobrev
Android 5.0.0+ has a feature to stop background Activity when a device is running out of memory. Developer Options->Don't keep activities is the option to simulate this situation.

To avoid NullPointerException in such cases, cordova plugins should implement public void onRestoreStateForActivityResult(Bundle state, CallbackContext callbackContext).
This is documented here (http://cordova.apache.org/docs/en/dev/guide/platforms/android/plugin.html#launching-other-activities).

I made a PR #171 to fix this issue.

Other plugins such as cordova-plugin-camera had a similar issue like this (apache/cordova-plugin-camera#145)
Also see CB-9189.