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ResultCode should be checked to avoid potential NPE. #40
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In some cases, resultCode == 0 (Activity.RESULT_CANCEL), and data == null. In these cases:
“Caused by java.lang.RuntimeException
Failure delivering result ResultInfo{who=null, request=99, result=0, data=null} to activity {com.duiud.shehe/com.duiud.shehe.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'android.os.Parcelable android.content.Intent.getParcelableExtra(java.lang.String)' on a null object reference”
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