如何在 SpriteKit 上创建 UITextField

Posted 2023-03-16

【中文标题】如何在 SpriteKit 上创建 UITextField

【英文标题】：How to create a UITextField on SpriteKit

【发布时间】：2013-10-29 12:20:54

【问题描述】：

我想实现一个文本字段来在我的 SpriteKit 游戏中输入你的名字，所以我有这样的东西：

SKLabelNode* gameTitle = [SKLabelNode labelNodeWithFontNamed:@"Chalkduster"];
gameTitle.text = @"Game Title";
gameTitle.name = @"gametitle";
gameTitle.fontSize = 44.0;
gameTitle.fontColor = [SKColor blackColor];
gameTitle.position = CGPointMake(self.size.width/2,self.size.height/2 + 150);
[self addChild:gameTitle];

UITextField *textField = [[UITextField alloc] initWithFrame:CGRectMake(self.size.width/2, self.size.height/2+20, 200, 40)];
textField.borderStyle = UITextBorderStyleRoundedRect;
textField.textColor = [UIColor blackColor];
textField.font = [UIFont systemFontOfSize:17.0];
textField.placeholder = @"Enter your name here";
textField.backgroundColor = [SKColor whiteColor];
textField.autocorrectionType = UITextAutocorrectionTypeYes;
textField.keyboardType = UIKeyboardTypeDefault;
textField.clearButtonMode = UITextFieldViewModeWhileEditing;
textField.delegate = self.delegate;

[self.view addSubview:textField];

所以，问题是它没有显示在我的场景中，也许问题是在将它添加到场景中时，我使用了 addSubview。

错了吗？

【问题讨论】：

尝试使用 UITextView

@LearnCocos2D 还是一样，没有出现：/

【参考方案1】：

您可以在didMoveToView:(SKView *)view 函数中添加继承 UIView 的对象

只需将该函数添加到您的 SKScene 并将您的 UITextField 移到里面：

-(void)didMoveToView:(SKView *)view 
    UITextField *textField = [[UITextField alloc] initWithFrame:CGRectMake(self.size.width/2, self.size.height/2+20, 200, 40)];
    textField.center = self.view.center;
    textField.borderStyle = UITextBorderStyleRoundedRect;
    textField.textColor = [UIColor blackColor];
    textField.font = [UIFont systemFontOfSize:17.0];
    textField.placeholder = @"Enter your name here";
    textField.backgroundColor = [UIColor whiteColor];
    textField.autocorrectionType = UITextAutocorrectionTypeYes;
    textField.keyboardType = UIKeyboardTypeDefault;
    textField.clearButtonMode = UITextFieldViewModeWhileEditing;
    textField.delegate = self.delegate;
    [self.view addSubview:textField];

【讨论】：

伟大而有效的解决方案。谢谢！

感谢您的回答。如果我更改为另一个场景，则 TextField 将保留在视图中。我必须手动删除它吗？

不幸的是你会的，@palme

感谢您的澄清。

谢谢！但是怎么去掉呢？？

【参考方案2】：

删除它使用

[myTextField removeFromSuperView];

如果你不想使用在场景演示中插入textField的方法didMoveToView，你可以使用这个方法：

-(void)insertUI

ttaAppDelegate *myDel = [[UIApplication sharedApplication] delegate];
UIViewController *vc = myDel.window.rootViewController;
self.textField= [[UITextField alloc] initWithFrame:CGRectMake(self.size.width/2, self.size.height/2+20, 200, 40)];
self.textField.center = self.view.center;
self.textField.borderStyle = UITextBorderStyleRoundedRect;
self.textField.textColor = [UIColor blackColor];
self.textField.font = [UIFont systemFontOfSize:17.0];
self.textField.placeholder = @"Enter your name here";
self.textField.backgroundColor = [UIColor whiteColor];
self.textField.autocorrectionType = UITextAutocorrectionTypeYes;
self.textField.keyboardType = UIKeyboardTypeDefault;
self.textField.clearButtonMode = UITextFieldViewModeWhileEditing;
self.textField.delegate = self;
self.button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[self.button addTarget:self action:@selector(saveScore:) forControlEvents:UIControlEventTouchDown];
[self.button setTitle:@"Save" forState:UIControlStateNormal];
self.button.frame = CGRectMake(80.0, 210.0, 160.0, 40.0);

[vc.view addSubview:self.textField];
[vc.view addSubview:self.button];
vc.interstitialPresentationPolicy = ADInterstitialPresentationPolicyManual;
[vc requestInterstitialAdPresentation];