IOS 13 changed the status bar background

The project needs to change the background color of statusBar, but iOS 13 statusBar cannot be found. KVC [[[UIApplication sharedApplication] valueForKey:@”statusBarWindow”] valueForKey:@”statusBar”] crashes.

Add a statusBar for iOS 13:

-(UIView *)statusBarUIview{
    if(@available(iOS 13,*)){
        
        int tag = 13004352;
        
        UIWindow *window = [UIApplication sharedApplication].delegate.window;
        UIView *view = [window viewWithTag:tag];
        if (view) {
            return view;
        }else{
            CGRect statusBarRect = [UIApplication sharedApplication].statusBarFrame;
            UIView *statusBarView = [[UIView alloc]initWithFrame:statusBarRect];
            statusBarView.tag = tag;
            [window addSubview:statusBarView];
            returnstatusBarView; }}else{
        UIView *statusBar = [[[UIApplication sharedApplication] valueForKey:@"statusBarWindow"] valueForKey:@"statusBar"];
        if ([statusBar respondsToSelector:@selector(setBackgroundColor:)]) {
            returnstatusBar; }}return nil;
}
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Before iOS 13, the same method was used. After iOS 13, you can manually configure one.