ios 简单的计时器游戏 NSUserDefaults NSDate NSTimer
1.NSUserDefaults是应用程序实现过程中只会存在单独一个的对象，故可以用它记录小型的数据如系统偏好设置等
2.初始化：
self.myuserDefaults = [NSUserDefaults standardUserDefaults];
3.取值：
[_myuserDefaults objectForKey:KMaxScore];
4.赋值：
[_myuserDefaults setObject:[NSNumber numberWithInt:0] forKey:KMaxScore];
5.NSDate是日期的数据类型
self.startDate = [NSDate date];//记录当前时间
6.计算间隔时间
self.timeUse = [_gameTimer.fireDate timeIntervalSinceDate:_startDate];
7.初始化计时器
self.gameTimer = [NSTimer scheduledTimerWithTimeInterval:_timeBetween target:self selector:@selector(timerFired:) userInfo:nil repeats:YES];
8.计时器响应时间
self.timeUse = [_gameTimer.fireDate timeIntervalSinceDate:_startDate];
一个简单的计时器小游戏
#define KMaxScore @"KMaxScore"
@interface ViewController ()<UIAlertViewDelegate>
@property (nonatomic, strong) UILabel *timeLabel;
@property (nonatomic, strong) UILabel *scoreLabel;
@property (nonatomic, strong) UILabel *animationLabel;
@property (nonatomic, strong) UIButton *aButton;
@property (nonatomic, strong) UIAlertView *myAlertView;
@property (nonatomic, strong) NSDate *startDate;
@property (nonatomic, strong) NSTimer *gameTimer;
@property (nonatomic, assign) NSInteger timeBetween;//button出现的时间间隔
@property (nonatomic, assign) NSInteger buttonX;
@property (nonatomic, assign) NSInteger buttonY;
@property (nonatomic, assign) NSInteger score;
@property (nonatomic, assign) NSInteger timeUse;
@property (nonatomic, strong) NSUserDefaults *myuserDefaults;
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
[self initTheData];
[self initTheGame];
}
- (void)initTheData{
//判断是否第一次启动游戏
if ([_myuserDefaults objectForKey:KMaxScore] == nil) {
NSLog(@"%@", [_myuserDefaults objectForKey:KMaxScore]);
self.myuserDefaults = [NSUserDefaults standardUserDefaults];
[_myuserDefaults setObject:[NSNumber numberWithInt:0] forKey:KMaxScore];
// NSLog(@"haha");
}
NSLog(@"%@", [_myuserDefaults objectForKey:KMaxScore]);//0
}
- (void) initTheGame{
UIImageView *bgImageView = [[UIImageView alloc] initWithFrame:self.view.bounds];
[bgImageView setImage:[UIImage imageNamed:@"djfoj.jpg"]];
[self.view addSubview:bgImageView];
// NSLog(@"haha");
// self.timeUse = 0;
self.animationLabel = [[UILabel alloc] init];
self.timeBetween = 1;
self.startDate = [NSDate date];
self.gameTimer = [NSTimer scheduledTimerWithTimeInterval:_timeBetween target:self selector:@selector(timerFired:) userInfo:nil repeats:YES];
self.score = 0;
self.scoreLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 40, 320, 40)];
[_scoreLabel setText:[NSString stringWithFormat:@"得分:%d", _score]];
[_scoreLabel setTextAlignment:NSTextAlignmentCenter];
[self.view addSubview:_scoreLabel];
self.timeLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 400, 320, 60)];
[_timeLabel setTextAlignment:NSTextAlignmentCenter];
[self.view addSubview:_timeLabel];
self.aButton = [UIButton buttonWithType:UIButtonTypeCustom];
}
- (void)timerFired:(NSTimer *) timer{
[_aButton setBackgroundImage:[UIImage imageNamed:@"Unlock_DotLock1_Selected"] forState:UIControlStateNormal];
self.buttonX = arc4random_uniform(220) + 50;
self.buttonY = arc4random_uniform(360) + 50;
[_aButton setFrame:CGRectMake(_buttonX, _buttonY, 52, 52)];
[_aButton addTarget:self action:@selector(buttonTouch:) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:_aButton];
self.timeUse = [_gameTimer.fireDate timeIntervalSinceDate:_startDate];
[_timeLabel setText:[NSString stringWithFormat:@"剩余时间: %d", 61 - _timeUse]];
if (_timeUse >= 56) {
[_timeLabel setAlpha:1];
[_timeLabel setTextColor:[UIColor redColor]];
[_timeLabel setFont:[UIFont fontWithName:_timeLabel.font.fontName size:_timeLabel.font.pointSize + 3]];
[UIView animateWithDuration:0.8 animations:^{
[_timeLabel setAlpha:0];
}];
}
if (_timeUse == 61) {
if (_score > [[_myuserDefaults objectForKey:KMaxScore] intValue]) {
[_myuserDefaults setObject:[NSNumber numberWithInt:_score] forKey:KMaxScore];
}
self.myAlertView = [[UIAlertView alloc] initWithTitle:@"游戏结束" message:
[NSString stringWithFormat:@"您的最高得分为:%d, 您本次的得分为:%d",
[[_myuserDefaults objectForKey:KMaxScore] intValue], _score]
delegate:self cancelButtonTitle:@"再玩一次" otherButtonTitles:@"退出游戏", nil];
[_myAlertView show];
[_gameTimer invalidate];
}
}
- (void)buttonTouch:(UIButton *)thisButton{
_score++;
[_scoreLabel setText:[NSString stringWithFormat:@"得分:%d", _score]];
[_animationLabel setAlpha:1];
[_animationLabel setFrame:CGRectMake(thisButton.frame.origin.x, thisButton.frame.origin.y, 40, 40)];
[_animationLabel setBackgroundColor:[UIColor greenColor]];
[_animationLabel setText:@"恭喜"];
[_animationLabel setTextAlignment:NSTextAlignmentCenter];
[_animationLabel setTextColor:[UIColor redColor]];
[self.view addSubview:_animationLabel];
[UIView animateWithDuration:1.0 animations:^{
[_animationLabel setAlpha:0];
}];
}
-(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{
if (buttonIndex == 0) {
[self initTheGame];
}else{
NSLog(@"已经退出游戏");
}
}
@end