您可以在UIInputViewController中尝试此代码

override public func viewWillAppear(animated: Bool) {
    super.viewWillAppear(animated)
    if let parentViewController = self.parentViewController {
        var hostBundleID = parentViewController.valueForKey("_hostBundleID")
        println(hostBundleID)
    }
}

但我不确定苹果会批准你发布到应用程序商店

ios 16+，“_主机绑定ID”的值为空

适用于iOS 16+

#import <dlfcn.h>

+ (nullable NSString *)hostBundleIDWithInputVC:(UIInputViewController *)vc {
    
    NSString *bundleID = nil;
    
    @try {
        bundleID = [vc.parentViewController valueForKey:@"_hostBundleID"];
    } @catch (NSException *exception) {
        NSLog(@"hostBundleID Get Failure 1 %@", exception);
    } @finally {
        
    }
    
    if(XMUtils.validString(bundleID) && ![bundleID isEqual:@"<null>"]) {
        return bundleID;
    }
    
    // 云控禁止xpc取法

    // xpc取法 逆向自xx输入法 主要解决iOS16上获取不到的问题
    @try {
        id hostPid = [vc.parentViewController valueForKey:@"_hostPID"];
        
        if (hostPid) {
            
    #pragma clang diagnostic push
    #pragma clang diagnostic ignored "-Warc-performSelector-leaks"
            
            id serverIns = [NSClassFromString(@"PKService") performSelector:NSSelectorFromString(@"defaultService")];
            id lities = [serverIns performSelector:NSSelectorFromString(@"personalities")];

            id infos = [lities objectForKey:[NSBundle mainBundle].bundleIdentifier];
            
            id info = [infos objectForKey:hostPid];
            id con = [info performSelector:NSSelectorFromString(@"connection")];
            id xpcCon = [con performSelector:NSSelectorFromString(@"_xpcConnection")];
            
    #pragma clang diagnostic pop
            
            const char * (* cfunc)(id) = dlsym(RTLD_DEFAULT, "xpc_connection_copy_bundle_id");
            
            if (cfunc != nil && xpcCon != nil) {
                const char *res = cfunc(xpcCon);
                bundleID = [NSString stringWithUTF8String:res];
                return  bundleID;
            }
        }
    } @catch (NSException *exception) {
        NSLog(@"hostBundleID Get Failure 2 %@", exception);
    } @finally {
        
    }
   
    return nil;
}

from blog