UI, 猜数字游戏的实现

游戏规则:

每次随机给lable赋值一个数, 然后再向输入框输入0-10的数, 判断是否和lable里的数字相同, 相同的话会弹出提示框, 总共有三次机会

#import "RootViewController.h"

//遵守协议<UIAlertViewDelegate>

@interface RootViewController ()<UIAlertViewDelegate> {

//定义几个全局变量

UILabel *lable;

UITextField *textField;

UIButton *button;

NSInteger random;

NSInteger count;

}

@end

@implementation RootViewController

- (void)viewDidLoad {

[super viewDidLoad];

// Do any additional setup after loading the view.

self.view.backgroundColor = [UIColor colorWithRed:1.000 green:0.891 blue:0.636 alpha:1.000];

//创建一个lable

lable = [[UILabel alloc] initWithFrame:CGRectMake(100, 60, 175, 175)];

lable.backgroundColor = [UIColor colorWithRed:1.000 green:0.217 blue:0.858 alpha:1.000];

lable.font = [UIFont boldSystemFontOfSize:150];

lable.textAlignment = NSTextAlignmentCenter;

[self.view addSubview:lable];

[lable release];

//创建一个textField

textField = [[UITextField alloc] initWithFrame:CGRectMake(50, 300, 275, 50)];

textField.placeholder = @"请输入0-10的数";

textField.borderStyle = UITextBorderStyleRoundedRect;

textField.keyboardType = UIKeyboardTypeNumberPad;

[self.view addSubview:textField];

[textField release];

//创建一个button

button = [UIButton buttonWithType:UIButtonTypeSystem];

[button setTitle:@"确认" forState:UIControlStateNormal];

button.frame = CGRectMake(50, 400, 275, 50);

button.titleLabel.font = [UIFont boldSystemFontOfSize:40];

[button addTarget:self action:@selector(pressButton:) forControlEvents:UIControlEventTouchUpInside];

[self.view addSubview:button];

[self reset];

}

//重置方法(把一些数据重置,
便于游戏重新开始)

- (void)reset {

count = 3;

lable.text = @"?";

random = arc4random() % 11;

textField.text = nil;

[textField resignFirstResponder];//

}

//button的关联方法

- (void)pressButton:()button {

//将随机数装化为字符串

NSString *title = [NSString stringWithFormat:@"%ld", random];

//将textField.text转化为整型值

NSInteger num = [textField.text integerValue];

//判断是否输入了数字,
如果没有弹出提示框

if ([textField.text length] == 0) {

UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"提示" message:@"在输入框中输入0-10的数"
delegate:nil cancelButtonTitle:@"好的" otherButtonTitles: nil];

[alertView show];

[alertView release];

}

//判断输入数字是否在0-10之间

if (num > 10 || num < 0) {

UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"提示" message:@"亲,
请输入0-10的数哦" delegate:nil cancelButtonTitle:@"好的" otherButtonTitles: nil];

[alertView show];

[alertView release];

}

//对输入的数与随机数进行大小的判断,
生成提示语

NSString *str = [NSString stringWithFormat:@"你输入的数字%@", num > random ? @"太大了" : @"太小了"];

//判断是否用完了三次机会

if (count == 0) {

UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"很遗憾" message:@"您的机会用完了" delegate:self cancelButtonTitle:@"再试一次吧"
otherButtonTitles: nil];

[alertView show];

[alertView release];

textField.text = title;

}else {

//判断是否猜对了

if ([title isEqualToString:textField.text]) {

//猜对之后的弹框

UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"恭喜你" message:@"猜对了" delegate:self cancelButtonTitle:@"再来一次吧"
otherButtonTitles: nil];

[alertView show];

[alertView release];

textField.text = title;

} else {

//猜错的弹框

UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"很遗憾" message:str delegate:nil cancelButtonTitle:@"再来一次吧"
otherButtonTitles: nil];

[alertView show];

[alertView release];

//每猜一次, count - 1

count--;

}

}

}

- (void)didReceiveMemoryWarning {

[super didReceiveMemoryWarning];

// Dispose of any resources that can be recreated.

}

#pragma mark - UIAlertViewDelegate

- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex {

[self reset];

}

@end