xgjames

// add child view
    UIViewController* controller = [self.storyboard instantiateViewControllerWithIdentifier:@"test"];
    [self addChildViewController:controller];
    controller.view.frame = CGRectMake(0, 44, 320, 320);
    [self.view addSubview:controller.view];
    [controller didMoveToParentViewController:self];

// remove child view
    UIViewController *vc = [self.childViewControllers lastObject];
    [vc.view removeFromSuperview];

xgjames

Keybase proof

I hereby claim:

• I am xgjames on github.
• I am xgjames (https://keybase.io/xgjames) on keybase.
• I have a public key whose fingerprint is ECE0 6A5E C6FA 4B0E ED24 E0EE 007F BEC8 D45A C09E

To claim this, I am signing this object:

xgjames

    NSPredicate *nameRegex = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", @"^[\u4e00-\u9fa5]+$"];
    if (![nameRegex evaluateWithObject:name]) {
        NSLog(@"姓名栏有非中文字符");
        return;
    }

xgjames

// Use Gists to store code you would like to remember later on
console.log(window); // log the "window" object to the console