canadaIbutler

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                                            canadaIbutler

reason: '-[iosdfu.AppDelegate window]: unrecognized selector sent to instance 0x2834204b0'

For Objective C, add @property (nonatomic, strong) UIWindow *window; to AppDelegate.h file, it works.

How can I get the button of cell in controller

same question, anyone give us some hints, many thanks