iphone - Objective-C のタイマーまたはメソッドが再開されました

Question

私はプログラミングが初めてで、川をカヤックで漕ぐカヤッカーのアプリを構築することから始めました。アプリには 2 つの画像があり、1 つは画面の左側に、もう 1 つは画面の右側にあり、カヤッカーが両側で上または下に漕ぐ上方向へのスワイプジェスチャを検出します。タイマーが実行されるたびに岩の「y」位置に追加し続けるタイマーを備えた岩があり、実際にはそれらが下に移動しているとき、カヤッカーがそれらに向かって動いているという錯覚を引き起こします。問題はこれです。すべてが機能しますが、何らかの理由でジェスチャがアクティブになると、岩が再び上に現れ、再び下に移動し始めます。なぜこれが起こるのか、そしてそれを修正する方法を誰かが私に説明できますか? 本当にありがとう。

これは、.h ファイルのコードです。

#import <UIKit/UIKit.h>

@interface WRViewController : UIViewController <UIGestureRecognizerDelegate> {
    //Image View for the game mode
    UIImageView *bg;
    UIImageView *player;
    UIImageView *rock1;
    UIImageView *rock2;
    UIImageView *rock3;

    UIImageView *con_left;
    UIImageView *con_right;

    NSInteger gameState;

    CGPoint rocksOnCurrent;
    CGPoint current;

    NSArray * lRowUpArray;
    NSArray * lRowDownArray;
    NSArray * rRowUpArray;
    NSArray * rRowDownArray;

}

@property (nonatomic, retain) IBOutlet UIImageView *bg;
@property (nonatomic, retain) IBOutlet UIImageView *player;
@property (nonatomic, retain) IBOutlet UIImageView *rock1;
@property (nonatomic, retain) IBOutlet UIImageView *rock2;
@property (nonatomic, retain) IBOutlet UIImageView *rock3;

@property (nonatomic, retain) IBOutlet UIImageView *con_left;
@property (nonatomic, retain) IBOutlet UIImageView *con_right;

@property (nonatomic) NSInteger gameState;

@property (nonatomic) CGPoint rocksOnCurrent;
@property (nonatomic) CGPoint current;
@property (nonatomic, retain) NSArray *lRowUpArray;
@property (nonatomic, retain) NSArray *lRowDownArray;
@property (nonatomic, retain) NSArray *rRowUpArray;
@property (nonatomic, retain) NSArray *rRowDownArray;

-(void)gameStatePlayNormal;

-(void) swipe_leftUp;
-(void) swipe_leftDown;
-(void) swipe_rightUp;
-(void) swipe_rightDown;

@end

.m ファイルの内容は次のとおりです。 #import "WRViewController.h"

@interface WRViewController ()

@end

#define kStateRunning 1
#define kStateGameOver 2

#define kCurrent 0.0045

@implementation WRViewController
@synthesize bg, player, rock1, rock2, rock3;
@synthesize con_left, con_right;
@synthesize gameState;
@synthesize rocksOnCurrent, current;
@synthesize lRowUpArray, lRowDownArray, rRowUpArray, rRowDownArray;


//Gesture actions called by gesture recognizers upon activation
-(void) swipe_leftDown{// The array inside is not causing the restarting
    NSArray * lRowDownArray = [[NSArray alloc] initWithObjects:[UIImage         imageNamed:@"k_lf1.png"],
                           [UIImage imageNamed:@"k_lf2.png"],
                           [UIImage imageNamed:@"k_lf3.png"],
                           [UIImage imageNamed:@"k_lf4.png"],
                           [UIImage imageNamed:@"k_lf5.png"],
                           [UIImage imageNamed:@"k_lf6.png"],
                           [UIImage imageNamed:@"k_lf7.png"],
                           [UIImage imageNamed:@"k_lf8.png"],
                           [UIImage imageNamed:@"k_lf9.png"],
                           [UIImage imageNamed:@"k_lf10.png"],
                           [UIImage imageNamed:@"k_lf11.png"],
                           [UIImage imageNamed:@"k_lf12.png"], nil];
    player.animationImages = lRowDownArray;
    [player setAnimationRepeatCount:1];
    player.animationDuration = 1.1;
    player.contentMode = UIViewContentModeBottomLeft;
    [self.view addSubview:player];
    [player startAnimating];
    rock1.center = CGPointMake(rock1.center.x, rock1.center.y + rocksOnCurrent.y);
    rocksOnCurrent.x -= 0.4;
    rocksOnCurrent.y += 0.4;
}
-(void) swipe_leftUp{
    NSArray * lRowUpArray = [[NSArray alloc] initWithObjects:[UIImage imageNamed:@"k_lf12.png"],
                         [UIImage imageNamed:@"k_lf11.png"],
                         [UIImage imageNamed:@"k_lf10.png"],
                         [UIImage imageNamed:@"k_lf9.png"],
                         [UIImage imageNamed:@"k_lf8.png"],
                         [UIImage imageNamed:@"k_lf7.png"],
                         [UIImage imageNamed:@"k_lf6.png"],
                         [UIImage imageNamed:@"k_lf5.png"],
                         [UIImage imageNamed:@"k_lf4.png"],
                         [UIImage imageNamed:@"k_lf3.png"],
                         [UIImage imageNamed:@"k_lf2.png"],
                         [UIImage imageNamed:@"k_lf1.png"], nil];
    player.animationImages = lRowUpArray;
    [player setAnimationRepeatCount:1];
    player.animationDuration = 1.1;
    player.contentMode = UIViewContentModeBottomLeft;
    //[self.view addSubview:player];
    [player startAnimating];
}
//Did the above to swipe_RightDown and swipe_RightUp. Didn't add here to save space.

-(NSString *)pathOfFile{
    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentationDirectory, NSUserDomainMask, YES);
    NSString *documentFolder = [paths objectAtIndex:0];
    return [documentFolder stringByAppendingFormat:@"saverFile.plist"];
}

- (void)viewDidLoad{
    [super viewDidLoad];
    gameState = kStateRunning;
    rocksOnCurrent = CGPointMake(0, 0); 
    current = CGPointMake (0, kCurrent);

    [NSTimer scheduledTimerWithTimeInterval:1.0/60 target:self selector:@selector(gameLoop) userInfo:nil repeats:YES];

    /////Gesture code for the row controllers
    //Left Row Up
    UISwipeGestureRecognizer *con_leftUp = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swipe_leftUp)];
    con_leftUp.numberOfTouchesRequired = 1;
    con_leftUp.direction = UISwipeGestureRecognizerDirectionUp;
    [self.con_left addGestureRecognizer:con_leftUp];

    //Left Row Down
    UISwipeGestureRecognizer *con_leftDown = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swipe_leftDown)];
    con_leftDown.numberOfTouchesRequired = 1;
    con_leftDown.direction = UISwipeGestureRecognizerDirectionDown;
    [self.con_left addGestureRecognizer:con_leftDown];
    //Right Row Up
    UISwipeGestureRecognizer *con_rightUp = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swipe_rightUp)];
    con_rightUp.numberOfTouchesRequired = 1;
    con_rightUp.direction = UISwipeGestureRecognizerDirectionUp;
    [self.con_right addGestureRecognizer:con_rightUp];
    //Right Row Down
    UISwipeGestureRecognizer *con_rightDown = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swipe_rightDown)];
    con_rightDown.numberOfTouchesRequired = 1;
    con_rightDown.direction = UISwipeGestureRecognizerDirectionDown;
    [self.con_right addGestureRecognizer:con_rightDown];
}

-(void)gameLoop {
    if (gameState == kStateRunning){
        [self gameStatePlayNormal];
    } else if (gameState == kStateGameOver){

    }
}
//Extra functions, so that they are not all in the game loop
-(void)gameStatePlayNormal{
    rocksOnCurrent.y += current.y;

    rock1.center = CGPointMake(rock1.center.x, rock1.center.y + rocksOnCurrent.y);
    rock2.center = CGPointMake(rock2.center.x, rock2.center.y + rocksOnCurrent.y);
    rock3.center = CGPointMake(rock3.center.x, rock3.center.y + rocksOnCurrent.y);

}

-(void)viewDidUnload {
    self.bg = nil;
    self.player = nil;
    self.rock1 = nil;
    self.rock2 = nil;
    self.rock3 = nil;
}

//Apple does not requires this, it seems.
/*-(void)dealloc {
    [super dealloc];
    [bg release];
    [rock1 release];
    [rock2 release];
    [rock3 release];
}*/

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end

簡単に言えば、ジェスチャをアクティブにするたびに、岩は元の場所に戻ります。スワイプするたびに岩の速度が速くなるように見えるため、rocksOnCurrent.y は同じままです。どんな助けでも大歓迎です、ありがとう。

score 1 · Accepted Answer

私はそれを考え出した。.xib ファイルでは、5 つの小さなタブがある右上隅にある小さなタブ (ページのように見えるもの) が File Inspector です。新しいアプリを起動すると、「自動レイアウトを使用する」が自動的にチェックされると思います。これが問題の原因でした。

iphone - Objective-C のタイマーまたはメソッドが再開されました

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