plugins in keywindow can't response user events? - ios

Question

In my viewcontroller like this:
#import "PPSharedView.h"
#interface ViewController ()
#end
#implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
PPSharedView * sharedView = [[PPSharedView alloc] init];
sharedView.topImageName = #"fenxiangdao";
[sharedView sharedWithArrayImage:#[#"weixin_um",#"weixin_um",#"weixin_um",] titles:#[#"微信好友",#"微信好友",#"微信好友",]];
}
#end
In PPSharedView.h like this:
#import <Foundation/Foundation.h>
#import <UIKit/UIKit.h>
#interface PPSharedView : UIView
-(void)sharedWithArrayImage:(nonnull NSArray *)arrImgs
titles:(nonnull NSArray *)arrTitles;
#end
In PPSharedView.m on the below:
-(void)sharedWithArrayImage:(NSArray *)arrImgs titles:(NSArray *)arrTitles{
if (arrImgs.count != arrTitles.count) return;
UIWindow * keyWindow = [UIApplication sharedApplication].keyWindow;
UIView * backView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, kSCREEN_W, kSCREEN_H)];
[keyWindow addSubview:backView];
backView.backgroundColor = [UIColor blackColor];
backView.alpha = 0.5;
UITapGestureRecognizer * tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:#selector(clickRedview)];
backView.userInteractionEnabled = YES;
[backView addGestureRecognizer:tap];
}
-(void)clickRedview{
NSLog(#"adf");
}
When I run the app on the iPhone the backView on the screen but can't response click events.Anyone knows what's wrong with the code?Thank you very much!

Answer 1

In controller the sharedView should be referenced example:
#interface ViewController ()
#property(nonatomic, strong) PPSharedView * ppView;
#end
#implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
PPSharedView * sharedView = [[PPSharedView alloc] init];
self.ppView = sharedView;
sharedView.topImageName = #"fenxiangdao";
[sharedView sharedWithArrayImage:#[#"weixin_um",#"weixin_um",#"weixin_um",] titles:#[#"微信好友",#"微信好友",#"微信好友",]];
}
#end
If don't do this the sharedView will be destoryed!